UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q



(Mark One)
☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, ~~2019~~2020



☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-35480

Enphase Energy, Inc.

(Exact name of registrant as specified in its charter)



Delaware			20-4645388
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)

47281 Bayside Parkway

Fremont, CA 94538

(Address of principal executive offices, including zip code)

(~~707~~877) 774-7000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:



Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.00001 par value per share	ENPH	~~NASDAQ~~Nasdaq Global Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an “emerging growth company.” See the definitions of “large accelerated filer,” “accelerated filer, ” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:



Large accelerated filer	☐☒	Accelerated filer	☒☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of October ~~22, 2019,~~20, 2020, there were ~~122,385,775~~126,332,567 shares of the registrant’s common stock outstanding, $0.00001 par value per share.

ENPHASE ENERGY, INC.

FORM 10-Q FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, ~~2019~~2020

TABLE OF CONTENTS



		Page
	PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements (Unaudited)	1
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Operations	2
	Condensed Consolidated Statements of Comprehensive Income ~~(Loss)~~	3
	Condensed Consolidated Statements of Stockholders’ Equity ~~(Deficit)~~	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	2530
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	3341
Item 4.	Controls and Procedures	3443

	PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	3544
Item 1A.	Risk Factors	3544
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	3749
Item 3.	Defaults Upon Senior Securities	3749
Item 4.	Mine Safety Disclosures	3749
Item 5.	Other Information	3749
Item 6.	Exhibits	3850
	Signature	3952

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

ENPHASE ENERGY, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except par value)
(Unaudited)



	As of
	September 30, 2020			December 31, 2019
ASSETS
Current assets:
Cash and cash equivalents	$	661,792		$	251,409
Restricted cash	0			44,700
Accounts receivable, net of allowances of $348 and $564 at September 30, 2020 and December 31, 2019, respectively	122,386			145,413
Inventory	37,535			32,056
Prepaid expenses and other assets	28,521			26,079
Total current assets	850,234			499,657
Property and equipment, net	35,187			28,936
Operating lease, right of use asset, net	14,487			10,117
Intangible assets, net	26,839			30,579
Goodwill	24,783			24,783
Other assets	51,998			44,620
Deferred tax assets, net	88,812			74,531
Total assets	$	1,092,340		$	713,223
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	48,148		$	57,474
Accrued liabilities	52,203			47,092
Deferred revenues, current	41,738			81,783
Warranty obligations, current (includes $7,560 and $6,794 measured at fair value at September 30, 2020 and December 31, 2019, respectively)	10,760			10,078
Debt, current	103,670			2,884
Total current liabilities	256,519			199,311
Long-term liabilities:
Deferred revenues, noncurrent	115,757			100,204
Warranty obligations, noncurrent (includes $18,188 and $13,012 measured at fair value at September 30, 2020 and December 31, 2019, respectively)	33,019			27,020
Other liabilities	14,387			11,817
Debt, noncurrent	256,452			102,659
Total liabilities	676,134			441,011
Commitments and contingencies (Note 9)
Stockholders’ equity:
Common stock, $0.00001 par value, 200,000 shares and 150,000 shares authorized; and 126,270 shares and 123,109 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	1			1
Additional paid-in capital	540,738			458,315
Accumulated deficit	(124,177		)	(185,181		)
Accumulated other comprehensive loss	(356		)	(923		)
Total stockholders’ equity	416,206			272,212
Total liabilities and stockholders’ equity	$	1,092,340		$	713,223

As of
September 30,
2019 December 31,
2018
ASSETS
Current assets:
Cash and cash equivalents $ 203,046
$ 106,237
Accounts receivable, net 133,689
78,938
Inventory 30,231
16,267
Prepaid expenses and other assets 24,551
20,860
Total current assets 391,517
222,302
Property and equipment, net 23,532
20,998
Operating lease, right of use asset 11,407
—
Intangible assets, net 31,761
35,306
Goodwill 24,783
24,783
Other assets 40,669
36,548
Total assets $ 523,669
$ 339,937
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable $ 60,692
$ 48,794
Accrued liabilities 39,991
29,010
Deferred revenues, current 34,295
33,119
Warranty obligations, current 8,757
8,083
Debt, current 3,084
28,155
Total current liabilities 146,819
147,161
Long-term liabilities:
Deferred revenues, noncurrent 85,746
76,911
Warranty obligations, noncurrent 25,867
23,211
Other liabilities 11,970
3,250
Debt, noncurrent 100,978
81,628
Total liabilities 371,380
332,161
Commitments and contingent liabilities (Note 9)

Stockholders’ equity:
Common stock, $0.00001 par value, 150,000 shares and 150,000 shares authorized; and 122,306 shares and 107,035 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively 1
1
Additional paid-in capital 453,566
353,335
Accumulated deficit (301,847 ) (346,302 )
Accumulated other comprehensive income 569
742
Total stockholders’ equity 152,289
7,776
Total liabilities and stockholders’ equity $ 523,669
$ 339,937

See Notes to Condensed Consolidated Financial Statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1

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ENPHASE ENERGY, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)
(Unaudited)


	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018			2020			2019			2020			2019
Net revenues	$	180,057		$	78,002		$	414,301		$	223,870		$	178,503		$	180,057		$	509,586		$	414,301
Cost of revenues	115,351			52,738			270,937			157,589			83,522			115,351			285,543			270,937
Gross profit	64,706			25,264			143,364			66,281			94,981			64,706			224,043			143,364
Operating expenses:
Research and development	11,085			8,165			29,213			25,247			15,052			11,085			40,120			29,213
Sales and marketing	9,551			7,375			26,038			20,430			14,645			9,551			38,788			26,038
General and administrative	9,895			7,510			28,358			21,423			13,525			9,895			37,810			28,358
Restructuring charges	469			2,588			1,468			2,588			0			469			0			1,468
Total operating expenses	31,000			25,638			85,077			69,688			43,222			31,000			116,718			85,077
Income (loss) from operations	33,706			(374		)	58,287			(3,407		)
Income from operations													51,759			33,706			107,325			58,287
Other expense, net
Interest income	894			321			1,698			568			110			894			1,483			1,698
Interest expense	(2,286		)	(2,790		)	(7,388		)	(7,599		)	(5,993		)	(2,286		)	(15,100		)	(7,388		)
Other expense, net	(943		)	(379		)	(6,904		)	(1,077		)	(1,031		)	(943		)	(1,302		)	(6,904		)
Change in fair value of derivatives													0			0			(44,348		)	0
Total other expense, net	(2,335		)	(2,848		)	(12,594		)	(8,108		)	(6,914		)	(2,335		)	(59,267		)	(12,594		)
Income (loss) before income taxes	31,371			(3,222		)	45,693			(11,515		)
Provision for income taxes	(272		)	(248		)	(1,211		)	(821		)
Net income (loss)	$	31,099		$	(3,470	)	$	44,482		$	(12,336	)
Net income (loss) per share:
Income before income taxes													44,845			31,371			48,058			45,693
Income tax benefit (provision)													(5,483		)	(272		)	12,946			(1,211		)
Net income													$	39,362		$	31,099		$	61,004		$	44,482
Net income per share:
Basic	$	0.25		$	(0.03	)	$	0.39		$	(0.13	)	$	0.31		$	0.25		$	0.49		$	0.39
Diluted	$	0.23		$	(0.03	)	$	0.35		$	(0.13	)	$	0.28		$	0.23		$	0.44		$	0.35
Shares used in per share calculation:
Basic	122,123			102,798			114,720			97,257			126,109			122,123			125,084			114,720
Diluted	133,611			102,798			131,114			97,257			141,820			133,611			140,207			131,114

See Notes to Condensed Consolidated Financial Statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 2

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ENPHASE ENERGY, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME ~~(LOSS)~~

(In thousands)
(Unaudited)


	Three Months Ended September 30,					Nine Months Ended September 30,						Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018			2019			2018			2020		2019		2020		2019
Net income (loss)	$	31,099	$	(3,470	)	$	44,482		$	(12,336	)
Net income												$	39,362	$	31,099	$	61,004	$	44,482
Other comprehensive income (loss):
Foreign currency translation adjustments	155		346			(173		)	649			797		155		567		(173		)
Comprehensive income (loss)	$	31,254	$	(3,124	)	$	44,309		$	(11,687	)
Comprehensive income												$	40,159	$	31,254	$	61,571	$	44,309

See Notes to Condensed Consolidated Financial Statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 3

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ENPHASE ENERGY, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER’S EQUITY ~~(DEFICIT)~~

(In thousands)
(Unaudited)


	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018			2020			2019			2020			2019
Common stock and paid-in capital
Balance, beginning of period	$	449,803		$	313,779		$	353,336		$	287,257		$	534,868		$	449,803		$	458,316		$	353,336
Cumulative-effect adjustment to additional paid in capital⁽¹⁾	—			—			27			—			0			0			0			27
Issuance of common stock from exercise of equity awards, net	303			633			2,925			2,156
Issuance of common stock from exercise of equity awards													541			303			4,708			2,925
Payment of withholding taxes related to net share settlement of equity awards	(2,348		)	—			(4,438		)	—			(9,069		)	(2,348		)	(52,042		)	(4,438		)
Conversion of convertible notes due 2023, net	—			—			58,857			—			0			0			0			58,857
Equity component of convertible notes due 2024, net	25			—			35,114			—
Cost of convertible notes hedge related to the convertible notes due 2024	—			—			(36,313		)	—
Sale of warrants related to the convertible notes due 2024	—			—			29,818			—
Issuance of common stock, net	—			—			—			19,771
Issuance of common stock related to acquisition	—			32,319			—			32,319
Equity component of convertible notes													0			25			116,300			35,114
Cost of convertible notes hedge related to the convertible notes													0			0			(117,108		)	(36,313		)
Sale of warrants related to the convertible notes													0			0			96,351			29,818
Stock-based compensation expense and other	5,784			4,443			14,241			9,671			14,399			5,784			34,214			14,241
Balance, end of period	$	453,567		$	351,174		$	453,567		$	351,174		$	540,739		$	453,567		$	540,739		$	453,567

Retained earnings
Accumulated deficit
Balance, beginning of period	$	(332,946	)	$	(343,541	)	$	(346,302	)	$	(295,727	)	$	(163,539	)	$	(332,946	)	$	(185,181	)	$	(346,302	)
Cumulative-effect adjustment to accumulated deficit⁽¹⁾and other	—			—			(27		)	(38,948		)	0			0			0			(27		)
Net income (loss)	31,099			(3,470		)	44,482			(12,336		)
Net income													39,362			31,099			61,004			44,482
Balance, end of period	$	(301,847	)	$	(347,011	)	$	(301,847	)	$	(347,011	)	$	(124,177	)	$	(301,847	)	$	(124,177	)	$	(301,847	)

Accumulated other comprehensive income (loss)
Balance, beginning of period	$	414		$	(353	)	$	742		$	(656	)	$	(1,153	)	$	414		$	(923	)	$	742
Foreign currency translation adjustments	155			346			(173		)	649			797			155			567			(173		)
Balance, end of period	$	569		$	(7	)	$	569		$	(7	)	$	(356	)	$	569		$	(356	)	$	569
Total stockholders' equity, ending balance	$	152,289		$	4,156		$	152,289		$	4,156		$	416,206		$	152,289		$	416,206		$	152,289


(1)	Includes the adoption of Accounting Standards Update (“ASU”) 2018-07, “Compensation - Stock Compensation: Improvements to Non-employee Share-Based Payment Accounting” on January 1, ~~2019 and the adoption of Accounting Standards Codification (“ASC”) No. 606, “Revenue Recognition” on January 1, 2018.~~2019.

See Notes to Condensed Consolidated Financial Statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 4

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ENPHASE ENERGY, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)
(Unaudited)


	Nine Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2020			2019
Cash flows from operating activities:
Net income (loss)	$	44,482		$	(12,336	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net income							$	61,004		$	44,482
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,551			6,950			12,750			11,551
Provision for doubtful accounts	408			668			254			408
Asset impairment	—			1,636
Non-cash interest expense	4,173			1,880			13,516			4,173
Financing fees on extinguishment of debt	2,152			—			0			2,152
Fees paid for repurchase and exchange of convertible notes due 2023	6,000			—			0			6,000
Stock-based compensation	14,000			9,911			34,214			14,000
Change in fair value of derivatives							44,348			0
Deferred income taxes							(14,507		)	0
Changes in operating assets and liabilities:
Accounts receivable	(56,139		)	10,671			23,533			(56,139		)
Inventory	(13,964		)	8,112			(5,479		)	(13,964		)
Prepaid expenses and other assets	(8,634		)	(3,995		)	(10,451		)	(8,634		)
Intangible assets	—			(6,000		)
Accounts payable, accrued and other liabilities	18,656			4,672			(9,200		)	18,656
Warranty obligations	3,330			2,368			6,681			3,330
Deferred revenues	10,781			(10,280		)	(24,509		)	10,781
Net cash provided by operating activities	36,796			14,257			132,154			36,796
Cash flows from investing activities:
Purchases of property and equipment	(7,368		)	(2,384		)	(11,707		)	(7,368		)
Acquisition	—			(9,000		)
Net cash used in investing activities	(7,368		)	(11,384		)	(11,707		)	(7,368		)
Cash flows from financing activities:
Issuance of convertible notes due 2024, net of issuance costs	127,481			—
Issuance of convertible notes, net of issuance costs							312,420			127,481
Purchase of convertible note hedges	(36,313		)	—			(89,056		)	(36,313		)
Sale of warrants	29,819			—			71,552			29,819
Fees paid for repurchase and exchange of convertible notes due 2023	(6,000		)	—			0			(6,000		)
Principal payments and financing fees on debt	(45,658		)	(5,664		)	(2,269		)	(45,658		)
Proceeds from issuance of common stock, net of issuance costs	—			19,771
Proceeds from debt, net of issuance costs	—			68,352
Proceeds from exercise of equity awards	2,925			2,151
Proceeds from exercise of equity awards and employee stock purchase plan							4,708			2,925
Payment of withholding taxes related to net share settlement of equity awards	(4,438		)	—			(52,042		)	(4,438		)
Net cash provided by financing activities	67,816			84,610			245,313			67,816
Effect of exchange rate changes on cash	(435		)	(463		)
Effect of exchange rate changes on cash and cash equivalents							(77		)	(435		)
Net increase in cash and cash equivalents	96,809			87,020			365,683			96,809
Cash and cash equivalents—Beginning of period	106,237			29,144
Cash, cash equivalents and restricted cash—Beginning of period							296,109			106,237
Cash and cash equivalents—End of period	$	203,046		$	116,164		$	661,792		$	203,046

Supplemental disclosures of non-cash investing and financing activities:
Acquisition funded by issuance of common stock	$	—		$	19,219
Acquisition funded by accrued liabilities	$	—		$	6,000
Purchases of fixed assets included in accounts payable	$	926		$	125		$	2,132		$	926
Accrued interest payable unpaid upon exchange of convertible notes due 2023	$	833		$	—		$	0		$	833

See Notes to Condensed Consolidated Financial Statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 5

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)


1.	DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION

Description of Business

Enphase Energy, Inc. (the “Company”) is a global energy technology company. The Company delivers smart, easy-to-use solutions that ~~connect~~manage solar generation, storage and ~~management~~communication on one intelligent platform. The Company revolutionized the solar industry with its microinverter technology and produces a ~~fully-integrated solar plus storage~~fully integrated solar-plus-storage solution.

Basis of Presentation and Consolidation

The accompanying condensed consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States (“U.S.”), or GAAP. The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the U.S. The Company filed audited consolidated financial statements, which included all information and notes necessary for such a complete presentation in conjunction with its Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 15, 2019 (“Form 10‑K”).

Unaudited Interim Financial Information

These accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial reporting. In the opinion of management, these unaudited condensed consolidated financial statements reflect all adjustments, consisting of normal recurring items, considered necessary to present fairly the Company’s financial condition, results of operations, comprehensive income, ~~(loss),~~ stockholders’ equity ~~(deficit)~~ and cash flows for the interim periods indicated. The results of operations for the three and nine months ended September 30, ~~2019~~2020 are not necessarily indicative of the operating results for the full year.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Significant estimates and assumptions reflected in the financial statements include revenue recognition, allowance for doubtful accounts, stock-based compensation, inventory valuation, accrued warranty obligations, fair value of debt derivatives, fair value of acquired intangible assets and goodwill, useful lives of acquired intangible assets and property and equipment, incremental borrowing rate for right-of-use assets and lease ~~liability.~~liability, probable loss recovery of tariff refunds, legal contingencies, and tax valuation allowance. These estimates are based on information available as of the date of the financial statements; therefore, actual results could differ materially from management’s estimates using different assumptions or under different conditions.

The worldwide spread of the COVID-19 virus has resulted in a global slowdown of economic activity which decreased demand for a broad variety of goods and services, including from our customers, while also disrupting sales channels and marketing activities for an unknown period of time and may continue to create significant uncertainty in future operational and financial performance. The Company expects this to have negative impact on its sales and its results of operations. In preparing the Company’s condensed consolidated financial statements in accordance with GAAP, the Company is required to make estimates, assumptions and judgments that affect the amounts reported in its financial statements and the accompanying disclosures. Estimates and assumptions about future events and their effects cannot be determined with certainty and therefore require the exercise of judgment. As of the date of issuance of these financial statements, the Company is not aware of any specific event or circumstance that would require the Company to update its estimates, judgments or revise the carrying value of its assets or liabilities. These estimates may change, as new events occur and additional information is obtained, and are recognized in the condensed consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to the Company’s financial statements.

Enphase Energy, Inc. | 2020 Form 10-Q | 6

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Summary of Significant Accounting Policies

~~Except for the accounting policies for leases, updated as a result of adopting new accounting standard related to leases, there~~There have been no significant changes to the Company’s significant accounting policies in Note 2. “Summary of Significant Accounting Policies,” of the notes to consolidated financial statements included in Item 8 of the Company’s ~~2018~~2019 Annual Report on Form ~~10-K.~~

~~Leases~~

~~The Company determines if an arrangement is or contains a lease at inception. Operating lease assets represent~~10-K other than the ~~Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments over the lease term.~~

~~Operating lease assets and liabilities are recognized based on the present value~~inclusion of the ~~remaining lease payments discounted using~~commitments and contingencies policies below.

Commitments and Contingencies

In the ~~Company’s incremental borrowing rate. Operating lease assets also include initial direct costs incurred~~normal course of business, the Company is subject to loss contingencies and ~~prepaid lease payments, minus any lease incentives. The Company’s lease terms include options to extend~~loss recoveries, such as legal proceedings and claims arising out of its business as well as tariff refunds. An accrual for a loss contingency or ~~terminate the lease~~loss recovery is recognized when it is probable and the amount of loss or recovery can be reasonably ~~certain that the Company will exercise that option. Lease expense is recognized on a straight-line basis over the lease term.~~estimated.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 6

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

~~The Company combines the lease~~See Note 9. “Commitments and ~~non-lease components in determining the operating lease assets and liabilities.~~

~~Recently Adopted Accounting Pronouncements~~

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, “Leases (Topic 842).” ASU 2016-02 requires an entity to recognize a right-of-use asset and lease liabilityContingencies” below for all leases with terms of more than 12 months. The guidance requires lessees to recognize all leases, with certain exceptions, on their balance sheets, whether operating or financing, while continuing to recognize the expenses on their income statements in a manner similar to current practice. The guidance states that a lessee must recognize a lease liability for the obligation to make lease payments and a right-to-use asset for the right to use the underlying asset for the lease term. On January 1, 2019, the Company adopted ASU 2016-02 using the modified retrospective transition option of applying the new standard at the adoption date for all leases with terms greater than 12 months. The Company elected certain practical expedients upon adoption and as such did not reassess the following: 1) whether any expired or existing contracts are or contain leases; 2) lease classification for any expired or existing leases; 3) initial direct costs for any expired or existing leases; 4) whether existing or expired land easements are or contain leases; and 5) regarding the lease term, from a hindsight perspective, whether or not the Company is reasonably certain to exercise the lease options. However, the Company will evaluate new or modified land easements under the new guidance after the commencement date. The Company also elected the practical expedient to not separate lease and non-lease components. The adoption of ASU 2016-02 on January 1, 2019 resulted in an increase in operating leases, right of use asset of $8.4 million, an increase in other liabilities of $6.8 million, an increase in accrued liabilities and other of $1.5 million and a decrease in other assets of $0.1 million on the Company’s consolidated balance sheets with no impact on the Company’s consolidated statements of operations.

In June 2018, the FASB issued ASU 2018-07, “Compensation - Stock Compensation: Improvements to Non-employee Share-Based Payment Accounting.” ASU 2018-07 was issued to provide guidance on share-based payments granted to non-employees in exchange for goods or services used or consumed in an entity’s own operations and supersedes the guidance in ASC 505-50, “Equity-Based Payments to Non-Employees.” ASU 2018-07 aligns much of the guidance on measuring and classifying non-employee awards with that of awards to employees. The Company adopted ASU 2018-07 on January 1, 2019 using the modified retrospective basis. The adopted standard did not have a material impact on the consolidated financial statements.additional information.

Recently Issued Accounting Pronouncements Not Yet Effective

In August 2020, the FASB issued Account Standard Update (“ASU”) 2020-06, “Debt - Debt with Conversion and Other Options (subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (subtopic 815-40),” which reduces the number of accounting models in ASC 470-20 that require separate accounting for embedded conversion features. As a result, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost as long as no other features require bifurcation and recognition as derivatives. By removing those separation models, the effective interest rate of convertible debt instruments will be closer to the coupon interest rate. Further, the diluted net income per share calculation for convertible instruments will require the Company to use the if-converted method. The treasury stock method should no longer be used to calculate diluted net income per share for convertible instruments. The amendment will be effective for the Company beginning after December 15, 2021 and early adoption is permitted. The Company is evaluating the accounting, transition and disclosure requirements of the standard.

Recently Adopted Accounting Pronouncements

In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” to reduce diversity in practice in accounting for the costs of implementing cloud computing arrangements that are service contracts. ASU 2018-15 allows entities to apply the guidance in the ASC 350-40, “Intangibles–Goodwill and Other–Internal-Use Software,” to determine which implementation costs are eligible to be capitalized as assets in a cloud computing arrangement that is considered a service contract. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period. Entities have the option to apply the guidance prospectively to all implementation costs incurred after the date of adoption or retrospectively and are required to make certain disclosures in the interim and annual period of adoption. The Company ~~is currently evaluating~~adopted the ~~impact~~new standard effective January 1, 2020 on a prospective basis and the adoption of this ~~update will~~guidance did not have a material impact on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with a current expected credit loss (CECL) model which will result in earlier recognition of credit losses. On January 1, 2020, the Company on a prospective basis adopted Topic 326, the measurement of expected credit losses under the CECL model is applicable to financial assets measured at amortized cost, including accounts receivable. The adoption of this guidance did not have a material impact on the Company’s consolidated financial statements.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 7

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)


2.	REVENUE RECOGNITION

Disaggregated Revenue

The Company has one business activity, which is the design, manufacture and sale of solutions for the solar photovoltaic (“PV”) industry. Disaggregated revenue by primary geographical market and timing of revenue recognition for the Company’s single product line are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018		2020		2019		2020		2019
	(In thousands)								(In thousands)
Primary geographical markets:
United States	$	150,686	$	54,880	$	328,281	$	148,268	$	139,924	$	150,686	$	420,315	$	328,281
International	29,371		23,122		86,020		75,602		38,579		29,371		89,271		86,020
Total	$	180,057	$	78,002	$	414,301	$	223,870	$	178,503	$	180,057	$	509,586	$	414,301

Timing of revenue recognition:
Products delivered at a point in time	$	170,152	$	68,256	$	384,888	$	193,564	$	166,729	$	170,152	$	475,707	$	384,888
Products and services delivered over time	9,905		9,746		29,413		30,306		11,774		9,905		33,879		29,413
Total	$	180,057	$	78,002	$	414,301	$	223,870	$	178,503	$	180,057	$	509,586	$	414,301

Contract Balances

Receivables, and contract assets and contract liabilities from contracts with customers are as follows:


	September 30, 2019		December 31, 2018		September 30, 2020		December 31, 2019
	(In thousands)				(In thousands)
Receivables	$	133,689	$	78,938	$	122,386	$	145,413
Short-term contract assets (Prepaid expenses and other assets)	14,170		13,516		16,973		15,055
Long-term contract assets (Other assets)	37,211		34,148		48,792		42,087
Short-term contract liabilities (Deferred revenues)	34,295		33,119		41,738		81,783
Long-term contract liabilities (Deferred revenues)	85,746		76,911		115,757		100,204

The Company receives payments from customers based upon contractual billing schedules. Accounts receivable are recorded when the right to consideration becomes unconditional. Contract assets include deferred product costs and commissions associated with the deferred revenue and will be amortized along with the associated revenue. The Company had 0 asset impairment charges related to contract assets in the three and nine months ended September 30, ~~2019.~~ 2020.

Significant changes in the balances of contract assets (prepaid expenses and other assets) during the period are as follows (in thousands):



Contract Assets
Balance on December 31, 2019	$	57,142
Amount recognized	(12,942		)
Increase	21,565
Balance as of September 30, 2020	$	65,765

Contract liabilities are recorded as deferred revenue on the accompanying condensed consolidated balance sheets and include payments received in advance of performance obligations under the contract and are realized when the associated revenue is recognized under the contract.

Significant changes in the balances of contract ~~assets (prepaid expenses and other assets) and contract~~ liabilities (deferred revenues) during the period are as follows (in thousands):

Contract Assets
Balance on December 31, 2018 $ 47,664
Amount recognized (10,988 )
Increase 14,705
Balance as of September 30, 2019 $ 51,381

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 8

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)


Contract Liabilities
Balance on December 31, 2018	$	110,030
Balance on December 31, 2019				$	181,987
Revenue recognized	(29,413		)	(78,614		)
Increase due to billings	39,424			54,122
Balance as of September 30, 2019	$	120,041
Balance as of September 30, 2020				$	157,495

Remaining Performance Obligations

Estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period are as follows:


	September 30, 2019		September 30, 2020
	(In thousands)		(In thousands)
Fiscal year:
2019 (remaining three months)	$	10,045
2020	32,100
2020 (remaining three months)			$	11,888
2021	25,903		39,344
2022	20,881		34,296
2023	15,102		28,483
2024			23,259
Thereafter	16,010		20,225
Total	$	120,041	$	157,495


3.	OTHER FINANCIAL INFORMATION

Accounts Receivable, Net

The Company receives payments from customers based upon contractual billing schedules. Accounts receivable are recorded when the right to consideration becomes unconditional.

Accounts receivable, net consist of the following:


	September 30, 2019			December 31, 2018			September 30, 2020			December 31, 2019
	(In thousands)						(In thousands)
Accounts receivable	$	136,002		$	81,076		$	122,734		$	145,977
Allowance for doubtful accounts	(2,313		)	(2,138		)	(348		)	(564		)
Accounts receivable, net	$	133,689		$	78,938		$	122,386		$	145,413

Enphase Energy, Inc. | 2020 Form 10-Q | 9

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Allowance for Doubtful Accounts

The Company maintains allowances for doubtful accounts for uncollectible accounts receivable. Management estimates anticipated losses from doubtful accounts based on financial health of customers, days past due, collection history and existing economic conditions. The following table sets forth activities in the allowance for doubtful accounts for the periods indicated.



	Three Months Ended			Nine Months Ended
	September 30, 2020
	(In thousands)
Balance, at beginning of the period	$	296		$	564
Net charges to expenses	70			254
Write-offs, net of recoveries	(18		)	(470		)
Balance, at end of the period	$	348		$	348

Inventory

Inventory consist of the following:


	September 30, 2019		December 31, 2018		September 30, 2020		December 31, 2019
	(In thousands)				(In thousands)
Raw materials	$	2,140	$	970	$	7,148	$	4,197
Finished goods	28,091		15,297		30,387		27,859
Total inventory	$	30,231	$	16,267	$	37,535	$	32,056

Accrued Liabilities

Accrued liabilities consist of the following:



	September 30, 2020		December 31, 2019
	(In thousands)
Salaries, commissions, incentive compensation and benefits	$	5,494	$	5,524
Customer rebates and sales incentives	19,965		24,198
Freight	3,861		4,908
Operating lease liabilities, current	4,245		3,170
Other	18,638		9,292
Total accrued liabilities	$	52,203	$	47,092

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 910

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

~~Accrued Liabilities~~

~~Accrued liabilities consist of the following:~~

September 30,
2019 December 31,
2018
(In thousands)
Salaries, commissions, incentive compensation and benefits $ 5,582
$ 4,107
Customer rebates and sales incentives 16,848
8,527
Freight 4,887
7,286
Operating lease liabilities, current 3,067
—
Other 9,607
9,090
Total accrued liabilities $ 39,991
$ 29,010


4.	GOODWILL AND INTANGIBLE ASSETS

The Company’s goodwill and purchased intangible assets as of September 30, ~~2019~~2020 and December 31, ~~2018~~2019 are as follows:


	September 30, 2019							December 31, 2018							September 30, 2020							December 31, 2019
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	(In thousands)														(In thousands)
Goodwill	$	24,783	$	—		$	24,783	$	24,783	$	—		$	24,783	$	24,783	$	—		$	24,783	$	24,783	$	—		$	24,783

Intangible assets:
Other indefinite-lived intangibles	$	286	$	—		$	286	$	286	$	—		$	286	$	286	$	—		$	286	$	286	$	—		$	286
Intangible assets with finite lives:
Patents and licensed technology	—		—			—		1,665		(1,665		)	—
Developed technology	13,100		(2,547		)	10,553		13,100		(909		)	12,191		13,100		(4,730		)	8,370		13,100		(3,093		)	10,007
Customer relationships	23,100		(2,178		)	20,922		23,100		(271		)	22,829		23,100		(4,917		)	18,183		23,100		(2,814		)	20,286
Total purchased intangible assets	$	36,486	$	(4,725	)	$	31,761	$	38,151	$	(2,845	)	$	35,306	$	36,486	$	(9,647	)	$	26,839	$	36,486	$	(5,907	)	$	30,579

In August 2018, the Company acquired certain finite-lived intangible assets in its acquisition of SunPower Corporation’s (“SunPower”) microinverter business, primarily developed technology and customer relationships, pursuant to an Asset Purchase Agreement (“APA”). See Note 20. “Acquisition,” of the notes to consolidated financial statements included in Item 8 of the Company’s 2018 Annual Report on Form 10-K for additional information related to this acquisition.

Amortization expense related to finite-lived intangible assets are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018		2020		2019		2020		2019
	(In thousands)								(In thousands)
Developed technology, and patents and licensed technology	$	546	$	485	$	1,638	$	637	$	545	$	546	$	1,637	$	1,638
Customer relationships	636		—		1,907		—		702		636		2,103		1,907
Total amortization expense	$	1,182	$	485	$	3,545	$	637	$	1,247	$	1,182	$	3,740	$	3,545

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 10

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

Amortization of developed technology, patents and licensed technology is ~~primarily~~ recorded to sales and marketing expense. The developed technology acquired from the Company’s acquisition of ~~SunPower’s~~SunPower Corporation’s (“SunPower”) microinverter business isin August 2018 was embedded in the microinverters that SunPower ~~sells~~sold to its customers. The Company does not actively use the developed technology acquired from SunPower and holds the developed technology to prevent others from using it. Accordingly, the Company accounts for the developed technology as a defensive intangible asset and amortizes the associated value over a period of six years from the date of acquisition.

The master supply agreement (“MSA”) ~~negotiated~~entered into with SunPower in August 2018 provides the Company with the exclusive right to supply SunPower with module level power electronics for a period of five years, with options for renewals. The exclusivity arrangement extends throughout the term of the MSA, which comprises all of the expected cash flows from the customer relationship intangible asset, and was a condition to, and was an essential part of the acquisition of SunPower’s microinverter business by the Company. As the fair value ascribed to the customer relationship intangible asset represents payments to a customer, the Company amortizes the value of the customer relationship intangible asset as a reduction to revenue using a pattern of economic benefit method over a useful life of nine years.

Enphase Energy, Inc. | 2020 Form 10-Q | 11

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5.	WARRANTY OBLIGATIONS

The Company’s warranty activities were as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018			2020			2019			2020			2019
	(In thousands)												(In thousands)
Warranty obligations, beginning of period	$	32,994		$	31,642		$	31,294		$	29,816		$	37,907		$	32,994		$	37,098		$	31,294
Accruals for warranties issued during period	1,571			689			3,741			2,222			1,939			1,571			4,229			3,741
Changes in estimates	3,884			1,997			5,387			4,825			3,869			3,884			7,294			5,387
Settlements	(3,780		)	(2,467		)	(8,282		)	(6,242		)	(3,274		)	(3,780		)	(9,122		)	(8,282		)
Increase due to accretion expense	562			514			1,663			1,453			832			562			2,410			1,663
Other	(607		)	(191		)	821			110			2,506			(607		)	1,870			821
Warranty obligations, end of period	34,624			32,184			34,624			32,184			43,779			34,624			43,779			34,624
Less: current portion	(8,757		)	(9,117		)	(8,757		)	(9,117		)	(10,760		)	(8,757		)	(10,760		)	(8,757		)
Noncurrent	$	25,867		$	23,067		$	25,867		$	23,067		$	33,019		$	25,867		$	33,019		$	25,867

Changes in Estimates

For the three and nine months ended September 30, 2020, the Company recorded additional warranty expense of $3.9 million and $7.3 million, respectively, based on continuing analysis of field performance data and diagnostic root-cause failure analysis primarily relating to its prior generation products.


6.	FAIR VALUE MEASUREMENTS

The accounting guidance defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance.

The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. An asset’s or liability’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value:

Level 1—Valuations based on quoted prices in active markets for identical assets or liabilities that the Company is able to access. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of such assets or liabilities do not entail a significant degree of judgment.

Level 2—Valuations based on one or more quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.

Level 3—Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

Level 1. The Company considers all highly liquid investments, such as certificates of deposit and money market instruments with maturities of three months or less at the time of acquisition to be cash equivalents. For all periods presented, its cash balances consist of amounts held in non-interest-bearing and interest-bearing deposits and money market accounts and are within Level 1 of the fair value hierarchy because they are valued using quoted market prices for identical instruments in active markets. As of September 30, 2020, cash and cash equivalents balance includes money market funds of $651.6 million.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1112

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Level ~~3—Valuations~~2.

Convertible Notes due 2025 Derivatives

On March 9, 2020, the Company issued $320 million aggregate principal amount of 0.25% convertible senior notes due 2025 (the “Notes due 2025”). Concurrently with the issuance of Notes due 2025, the Company entered into privately-negotiated convertible note hedge and warrant transactions which in combination are intended to reduce the potential dilution from the conversion of the Notes due 2025. On May 20, 2020, at the Company’s annual meeting of stockholders, the stockholders approved an amendment to its certificate of incorporation to increase the number of authorized shares of the Company’s common stock. As a result, the Company satisfied the share reservation condition (as defined in the relevant indenture associated with the Notes due 2025). The Company will now be able to settle the Notes due 2025, convertible notes hedge and warrants through payment or delivery, as the case may be, of cash, shares of its common stock or a combination thereof, at the Company’s election. Accordingly, on May 20, 2020, the embedded derivative liability, convertible notes hedge and warrants liability were remeasured at a fair value of $116.3 million, $117.1 million and $96.4 million, respectively, and were then reclassified to additional paid-in-capital in the condensed consolidated balance sheet in the second quarter of 2020 and are no longer remeasured as long as they continue to meet the conditions for equity classification. See Note 8. “Debt” for additional information related to these transactions.

The fair value of the Convertible notes embedded derivative was estimated using Binomial Lattice model and the fair value of Convertible notes hedge and Warrants liability was estimated using Black-Scholes-Merton model. The significant observable inputs, either directly or indirectly, and assumptions used in the models to calculate the fair value of the derivatives include the Company’s common stock price, exercise price of the derivatives, risk-free interest rate, volatility, annual coupon rate and remaining contractual term.

Notes due 2025 and Notes due 2024. The Company carries the Notes due 2025andNotes due 2024 (as defined below) at face value less unamortized discount and issuance costs on its condensed consolidated balance sheets. The fair value of the Notes due 2025 and Notes due 2024 of $506.9 million and $408.8 million, respectively, was determined based on ~~inputs that are unobservable and significant to~~ the ~~overall~~closing trading prices per $100 principal amount as of the last day of trading for the period. The Company considers the fair value ~~measurement.~~of the Notes due 2025 and Notes due 2024 to be a Level 2 measurement as they are not actively traded.

Level 3.

Warranty Obligations.

The following table presents the Company’s ~~liabilities~~warranty obligation that were measured at fair value on a recurring basis and its categorization within the fair value hierarchy.


	Fair Value Hierarchy	September 30, 2019		December 31, 2018		September 30, 2020		December 31, 2019
		(In thousands)				(In thousands)
						Level 3		Level 3
Liabilities:
Warranty obligations
Current		$	5,647	$	4,288	$	7,560	$	6,794
Non-current		11,337		7,469		18,188		13,012
Total warranty obligations measured at fair value	Level 3	$	16,984	$	11,757	25,748		19,806
Total liabilities measured at fair value						$	25,748	$	19,806

Enphase Energy, Inc. | 2020 Form 10-Q | 13

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Fair Value Option for Warranty Obligations Related to Microinverters Sold Since January 1, 2014

The Company estimates the fair value of warranty obligations by calculating the warranty obligations in the same manner as for sales prior to January 1, 2014 and applying an expected present value technique to that result. The expected present value technique, an income approach, converts future amounts into a single current discounted amount. In addition to the key estimates of failure rates, claim rates and replacement costs, the Company used certain Level 3 inputs which are unobservable and significant to the overall fair value measurement. Such additional assumptions included a discount rate based on the Company’s credit-adjusted risk-free rate and compensation comprised of a profit element and risk premium required of a market participant to assume the obligation.

The following table provides information regarding changes in nonfinancial liabilities related to the Company’s warranty obligations measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the periods indicated.


	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018			2020			2019			2020			2019
	(In thousands)												(In thousands)
Balance at beginning of period	$	14,856		$	12,837		$	11,757		$	9,791		$	21,132		$	14,856		$	19,806		$	11,757
Accruals for warranties issued during period	1,571			689			3,741			2,222			1,939			1,571			4,229			3,741
Changes in estimates	2,676			853			3,536			2,848			1,279			2,676			2,877			3,536
Settlements	(2,074		)	(1,135		)	(4,534		)	(2,857		)	(1,940		)	(2,074		)	(5,444		)	(4,534		)
Increase due to accretion expense	562			514			1,663			1,453			832			562			2,410			1,663
Other	(607		)	(191		)	821			110			2,506			(607		)	1,870			821
Balance at end of period	$	16,984		$	13,567		$	16,984		$	13,567		$	25,748		$	16,984		$	25,748		$	16,984

Quantitative and Qualitative Information about Level 3 Fair Value Measurements

As of September 30, ~~2019~~2020 and December 31, ~~2018,~~2019, the significant unobservable inputs used in the fair value measurement of the Company’s liabilities designated as Level 3 are as follows:

Percent Used
(Weighted Average)
Item Measured at Fair Value Valuation Technique Description of Significant Unobservable Input September 30,
2019 December 31,
2018
Warranty obligations for microinverters sold since January 1, 2014 Discounted cash flows Profit element and risk premium 14% 16%
Credit-adjusted risk-free rate 16% 16%

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 12

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~



			Percent Used (Weighted Average)
Item Measured at Fair Value	Valuation Technique	Description of Significant Unobservable Input	September 30, 2020	December 31, 2019
Warranty obligations for microinverters sold since January 1, 2014	Discounted cash flows	Profit element and risk premium	15%	14%
	Discounted cash flows	Credit-adjusted risk-free rate	13%	16%

Sensitivity of Level 3 Inputs - Warranty Obligations

Each of the significant unobservable inputs is independent of the other. The profit element and risk premium are estimated based on requirements of a third-party participant willing to assume the Company’s warranty obligations. The credit‑adjusted risk‑free rate (“discount rate”) is determined by reference to the Company’s own credit standing at the fair value measurement date. Increasing the profit element and risk premium input by 100 basis points would result in a ~~$0.1~~$0.2 million increase to the liability. Decreasing the profit element and risk premium by 100 basis points would result in a ~~$0.1~~$0.2 million reduction of the liability. Increasing the discount rate by 100 basis points would result in a ~~$0.7~~$1.3 million reduction of the liability. Decreasing the discount rate by 100 basis points would result in a ~~$0.8~~$1.4 million increase to the liability.


7.	RESTRUCTURING

Restructuring expense consist of the following:


	Three Months Ended September 30,				Nine Months Ended September 30,					Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019			2018		2020		2019		2020		2019
	(In thousands)									(In thousands)
Redundancy and employee severance and benefit arrangements	$	469	$	613	$	1,568		$	613	$	0	$	469	$	0	$	1,568
Asset impairments	—		1,636		—			1,636
Lease loss reserves	—		339		(100		)	339
Lease loss reserves (benefit)										0		0		0		(100		)
Total restructuring charges	$	469	$	2,588	$	1,468		$	2,588	$	0	$	469	$	0	$	1,468

Enphase Energy, Inc. | 2020 Form 10-Q | 14

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

2018 Plan

In the third quarter of 2018, the Company began implementing restructuring actions (the “2018 Plan”) to lower its operating expenses. The restructuring actions include reorganization of the Company’s global workforce, elimination of certain non-core projects and consolidation of facilities. The Company ~~expects to complete this~~completed its restructuring activities under the 2018 Plan in 2019.


8.	DEBT

The following table provides information regarding ~~changes in~~ the Company’s ~~2018 Plan accrued restructuring balance for the periods indicated.~~long-term debt.

Redundancy and Employee Severance and Benefits Lease Loss Reserves and Contractual Obligations Total
(In thousands)
Balance as of December 31, 2018 $ 904
$ 288
$ 1,192
Charges 1,568
—
1,568
Cash payments (1,620 ) —
(1,620 )
Non-cash settlement and other (852 ) (288 ) (1,140 )
Balance as of September 30, 2019 $ —
$ —
$ —



	September 30, 2020			December 31, 2019
	(In thousands)
Convertible notes
Notes due 2025	$	320,000		$	0
Less: unamortized discount and issuance costs	(68,510		)	0
Carrying amount of Notes due 2025	251,490			0

Notes due 2024	132,000			132,000
Less: unamortized discount and issuance costs	(30,488		)	(35,815		)
Carrying amount of Notes due 2024	101,512			96,185

Notes due 2023	5,000			5,000
Less: unamortized issuance costs	(112		)	(143		)
Carrying amount of Notes due 2023	4,888			4,857

Sale of long-term financing receivable recorded as debt	2,232			4,501
Total carrying amount of debt	360,122			105,543
Less: current portion of convertible notes and long-term financing receivable recorded as debt	(103,670		)	(2,884		)
Long-term debt	$	256,452		$	102,659

~~2016 Plan~~Convertible Senior Notes due 2025

~~In the third quarter of 2016,~~On March 9, 2020, the Company ~~began implementing restructuring actions (the “2016 Plan”)~~issued $320.0 million aggregate principal amount of the Notes due 2025. The Notes due 2025 are general unsecured obligations and bear interest at an annual rate of 0.25% per year, payable semi-annually on March 1 and September 1 of each year, beginning September 1, 2020. The Notes due 2025 are governed by an indenture between the Company and U.S. Bank National Association, as trustee. The Notes due 2025 will mature on March 1, 2025, unless earlier repurchased by the Company or converted at the option of the holders. The Company may not redeem the notes prior to ~~lower its operating expenses.~~the maturity date, and no sinking fund is provided for the notes. The ~~restructuring actions have included reductions~~Notes due 2025 may be converted, under certain circumstances as described below, based on an initial conversion rate of 12.2637 shares of common stock per $1,000 principal amount (which represents an initial conversion price of $81.54 per share). The conversion rate for the Notes due 2025 will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest. In addition, upon the occurrence of a make-whole fundamental change (as defined in the Company’s global workforce, the elimination of certain non-core projects, consolidation of office space at the Company’s corporate headquarters and the engagement of management consultants to assistrelevant indenture), the Company will, in ~~making organizational and structural changes~~certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to ~~improve operational efficiencies and reduce expenses.~~convert its notes in connection with such make-whole fundamental change. The Company ~~completed its restructuring activities under~~received approximately $313.0 million in net proceeds, after deducting the ~~2016 Plan in 2017.~~initial purchasers’ discount, from the issuance of the Notes due 2025.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 15

Table of Contents13

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Notes due 2025 may be converted prior to the close of business on the business day immediately preceding September 1, 2024, in multiples of $1,000 principal amount, at the option of the holder only under the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2020 (and only during such calendar quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any 5 consecutive trading day period (the “measurement period”) in which the “trading price” (as defined in the relevant indenture) per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On and after September 1, 2024 until the close of business on the second scheduled trading day immediately preceding the maturity date of March 1, 2025, holders may convert their notes at any time, regardless of the foregoing circumstances. Upon the occurrence of a fundamental change (as defined in the relevant indenture), holders may require the Company to repurchase all or a portion of their Notes due 2025 for cash at a price equal to 100% of the principal amount of the notes to be repurchased plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

For the period from March 9, 2020, the issuance date, through May 19, 2020, the number of authorized and unissued shares of the Company’s common stock that are not reserved for other purposes was less than the maximum number of underlying shares that would be required to settle the Notes due 2025 into equity. Accordingly, unless and until the Company had a number of authorized shares that were not issued or reserved for any other purpose that equaled or exceeded the maximum number of underlying shares (“share reservation condition”), the Company would be required to pay to the converting holder in respect of each $1,000 principal amount of notes being converted solely in cash in an amount equal to the sum of the daily conversion values for each of the 20 consecutive trading days during the related observation period. However, following satisfaction of the share reservation condition, the Company could settle conversions of notes through payment or delivery, as the case may be, of cash, shares of the Company’s common stock or a combination of cash and shares of its common stock, at the Company’s election.

In accounting for the issuance of the Notes due 2025, on March 9, 2020, the conversion option of the Notes due 2025 was deemed an embedded derivative requiring bifurcation from the Notes due 2025 (“host contract”) and separate accounting as an embedded derivative liability, as a result of the Company not having the necessary number of authorized but unissued shares of its common stock available to settle the conversion option of the Notes due 2025 in shares. The proceeds from the Notes due 2025 were first allocated to the embedded derivative liability and the remaining proceeds were then allocated to the host contract. On March 9, 2020, the carrying amount of the embedded derivative liability of $68.7 million representing the conversion option was determined using the Binomial Lattice model and the remaining $251.3 million was allocated to the host contract. The difference between the principal amount of the Notes due 2025 and the fair value of the host contract (the “debt discount”) is amortized to interest expense using the effective interest method over the term of the Notes due 2025.

On May 20, 2020, at the Company’s annual meeting of stockholders, the stockholders approved an amendment to the Amended and Restated Certificate of Incorporation to increase the number of authorized shares of the Company’s common stock, par value $0.00001 per share, from 150,000,000 shares to 200,000,000 shares (the “Amendment”). The Amendment became effective upon filing with the Secretary of State of Delaware on May 20, 2020. As a result, the Company satisfied the share reservation condition. The Company may now settle the Notes due 2025 and warrants issued in conjunction with the Notes due 2025 through payment or delivery, as the case may be, of cash, shares of its common stock or a combination of cash and shares of its common stock, at the Company’s election. Accordingly, on May 20, 2020, the embedded derivative liability was remeasured at a fair value of $116.3 million and was then reclassified to additional paid-in-capital in the condensed consolidated balance sheet in the second quarter of 2020 and is no longer remeasured as long as it continues to meet the conditions for equity classification. The Company recorded the change in the fair value of the embedded derivative in other expense, net in the condensed consolidated statement of operations during the nine months ended September 30, 2020.

Enphase Energy, Inc. | 2020 Form 10-Q | 16

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The following table ~~provides information regarding changes~~presents the fair value and the change in fair value for the convertible note embedded derivative (in thousands):



Convertible note embedded derivative
(In thousands)
Fair value as of March 9, 2020	$	68,700
Change in the fair value	(23,600		)
Fair value as of March 31, 2020	45,100
Change in the fair value	71,200
Fair value as of May 20, 2020	$	116,300

Debt issuance costs for the issuance of the Notes due 2025 were approximately $7.6 million, consisting of initial purchasers' discount and other issuance costs. In accounting for the transaction costs, the Company allocated the total amount incurred to the Notes due 2025 host contract. Transaction costs were recorded as debt issuance cost (presented as contra debt in the ~~Company’s 2016 Plan accrued restructuring~~condensed consolidated balance ~~for~~sheet) and are being amortized to interest expense over the ~~periods indicated.~~term of the Notes due 2025.

The following table presents the total amount of interest cost recognized relating to the Notes due 2025:

Lease Loss Reserves and Contractual Obligations
(In thousands)
Balance as of December 31, 2018 $ 1,591
Other ⁽¹⁾
(1,591 )
Balance as of September 30, 2019 $ —



	Three Months Ended September 30, 2020		Nine Months Ended September 30, 2020
	(In thousands)
Contractual interest expense	$	200	$	449
Amortization of debt discount	3,110		6,922
Amortization of debt issuance costs	380		848
Total interest cost recognized	$	3,690	$	8,219

The derived effective interest rate on the Notes due 2025 host contract was determined to be 5.18%, which remain unchanged from the date of issuance. The remaining unamortized debt discount was $61.8 million as of September 30, 2020, will be amortized over approximately 4.4 years.

Notes due 2025 Hedge and Warrant Transactions

In connection with the offering of the Notes due 2025, the Company entered into privately-negotiated convertible note hedge transactions pursuant to which the Company has the option to purchase a total of approximately 3.9 million shares of its common stock (subject to anti-dilution adjustments), which is the same number of shares initially issuable upon conversion of the notes, at a price of $81.54 per share, which is the initial conversion price of the Notes due 2025. The total cost of the convertible note hedge transactions was approximately $89.1 million. The convertible note hedge transactions are expected generally to reduce potential dilution to the Company’s common stock upon any conversion of the Notes due 2025 and/or offset any cash payments the Company is required to make in excess of the principal amount of converted notes, as the case may be. As of September 30, 2020, the Company had not purchased any shares under the convertible note hedge transactions.


~~(1)~~	~~Adoption of ASU 2016-02.~~

Enphase Energy, Inc. | 2020 Form 10-Q | 17

Table of Contents

~~DEBT~~

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Additionally, the Company separately entered into privately-negotiated warrant transactions (the “Warrants”) whereby the Company sold warrants to acquire approximately 3.9 million shares of the Company’s common stock (subject to anti-dilution adjustments) at an initial strike price of $106.94 per share. The Company received aggregate proceeds of approximately $71.6 million from the sale of the Warrants. If the market value per share of the Company’s common stock, as measured under the Warrants, exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on the Company’s earnings per share, unless the Company elects, subject to certain conditions, to settle the Warrants in cash. Taken together, the purchase of the convertible note hedges and the sale of the Warrants are intended to reduce potential dilution from the conversion of the Notes due 2025 and to effectively increase the overall conversion price from $81.54 to $106.94 per share. The Warrants are only exercisable on the applicable expiration dates in accordance with the agreements relating to each of the Warrants. Subject to the other terms of the Warrants, the first expiration date applicable to the Warrants is June 1, 2025, and the final expiration date applicable to the Warrants is September 23, 2025. As of September 30, 2020, the Warrants had not been exercised and remained outstanding.

For the period from March 9, 2020, the issuance date of the convertible notes hedge and warrant transactions, through May 19, 2020, the number of authorized and unissued shares of the Company’s common stock that are not reserved for other purposes was less than the maximum number of underlying shares that will be required to settle the Notes due 2025 through the delivery of shares of the Company’s common stock. Accordingly, the convertibles note hedge and the warrant transactions could only be settled on net cash settlement basis. As a result the convertible note hedge and the warrants transaction were classified as a Convertible notes hedge asset and Warrants liability, respectively, in the condensed consolidated balance sheet and the change in fair value of derivatives was included in other expense, net in the condensed consolidated statement of operations.

On May 20, 2020, at the Company’s annual meeting of stockholders, the stockholders approved the Amendment, and as a result, the Convertible notes hedge asset and Warrants liabilities were remeasured at a fair value of $117.1 million and $96.4 million, respectively, and were then reclassified to additional paid-in-capital in the condensed consolidated balance sheet in the second quarter of 2020 and is no longer remeasured as long as they continue to meet the conditions for equity classification. The change in the fair value of the Convertible notes hedge asset and Warrants liability were recorded in other expense, net in the condensed consolidated statements of operations during the nine months ended September 30, 2020.

The following table ~~provides information regarding~~presents the ~~Company’s long-term debt.~~fair value and the change in fair value for the Convertible notes hedge asset and Warrants liability:

September 30,
2019 December 31,
2018
(In thousands)
Convertible notes
Notes due 2024 $ 132,000
$ —
Less: unamortized discount and issuance costs (37,484 ) —
Carrying amount of Notes due 2024 94,516
—

Notes due 2023 5,000
65,000
Less: unamortized issuance costs (152 ) (2,361 )
Carrying amount of Notes due 2023 4,848
62,639

Term loan —
41,524
Less: unamortized discount and issuance costs —
(1,059 )
Carrying amount of term loan —
40,465

Sale of long-term financing receivable recorded as debt 4,698
6,679
Total carrying amount of debt 104,062
109,783
Less: current portion term loan —
(25,417 )
Less: current portion of long-term financing receivable recorded as debt (3,084 ) (2,738 )
Long-term debt $ 100,978
$ 81,628



	Convertible notes hedge			Warrants liability
	(In thousands)
Fair value as of March 9, 2020	$	89,056		$	71,552
Change in the fair value	(41,171		)	(32,915		)
Fair value as of March 31, 2020	47,885			38,637
Change in the fair value	69,223			57,715
Fair value as of May 20, 2020	$	117,108		$	96,352

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1418

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Convertible Senior Notes due 2024

On June 5, 2019, the Company issued $132.0 million aggregate principal amount of 1.0% convertible senior notes due 2024 (the “Notes due 2024”). The Notes due 2024 are general unsecured obligations and bear interest at an annual rate of 1.0% per year, payable semi-annually on June 1 and December 1 of each year, beginning December 1, 2019. The Notes due 2024 are governed by an indenture between the Company and U.S. Bank National Association, as trustee. The Notes due 2024 will mature on June 1, 2024, unless earlier repurchased by the Company or converted at the option of the holders. The Company may not redeem the notes prior to the maturity date, and no sinking fund is provided for the notes. The Notes due 2024 may be converted, under certain circumstances as described below, based on an initial conversion rate of 48.7781 shares of common stock per $1,000 principal amount (which represents an initial conversion price of $20.5010 per share). The conversion rate for the Notes due 2024 will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest. In addition, upon the occurrence of a make-whole fundamental change (as defined in the relevant indenture), the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its notes in connection with such make-whole fundamental change. The Company received approximately $128.0 million in net proceeds, after deducting the initial purchasers’ discount, from the issuance of the Notes due 2024.

The Notes due 2024 may be converted on any day prior to the close of business on the business day immediately preceding December 1, 2023, in multiples of $1,000 principal amount, at the option of the holder only under any of the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on September 30, 2019 (and only during such calendar quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to $26.6513 (130% of the conversion price) on each applicable trading day; (2) during the five business day period after any ~~five~~5 consecutive trading day period (the “measurement period”) in which the “trading price” (as defined in the relevant indenture) per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On and after December 1, 2023 until the close of business on the second scheduled trading day immediately preceding the maturity date of June 1, 2024, holders may convert their notes at any time, regardless of the foregoing circumstances. Upon the occurrence of a fundamental change (as defined in the relevant indenture), holders may require the Company to repurchase all or a portion of their Notes due 2024 for cash at a price equal to 100% of the principal amount of the notes to be repurchased plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

~~Upon conversion~~As of ~~any~~September 30, 2020, the sale price of the Company’s common stock was greater than or equal to $26.6513 (130% of the notes conversion price) for at least 20 trading days (whether consecutive or not) during a period of 30 consecutive trading days preceding the quarter-ended September 30, 2020. As a result, as of September 30, 2020, the Notes due 2024 are convertible at the holders’ option through December 31, 2020. Accordingly, the Company ~~will pay or deliver,~~classified the net carrying amount of the Notes due 2024 of $101.5 million as Debt, current on the ~~case may be, cash, shares~~condensed consolidated balance sheet as of ~~common stock or~~September 30, 2020. As of October 27, 2020, the Company has received the request for conversion of approximately $5.4 million in principal amount of Notes due 2024, of which the Company has elected to settle the aggregate principal amount of the Notes due 2024 in a combination of cash and any excess in shares of the Company’s common stock atin accordance with the ~~Company’s election.~~applicable indenture. Such conversion will be settled in December 2020.

In accounting for the issuance of the Notes due 2024, on June 5, 2019, the Company separated the Notes due 2024 into liability and equity components. The carrying amount of the liability component of approximately $95.6 million was calculated by using a discount rate of 7.75%, which was the Company’s borrowing rate on the date of the issuance of the notes for a similar debt instrument without the conversion feature. The carrying amount of the equity component of approximately $36.4 million, representing the conversion option, was determined by deducting the fair value of the liability component from the par value of the Notes due 2024. The equity component of the Notes due 2024 is included in additional paid-in capital in the condensed consolidated balance sheet and is not remeasured as long as it continues to meet the conditions for equity classification. The difference between the principal amount of the Notes due 2024 and the liability component (the “debt discount”) is amortized to interest expense using the effective interest method over the term of the Notes due 2024.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1519

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company separated the Notes due 2024 into liability and equity components, this resulted in a tax basis difference associated with the liability component that represents a temporary difference. The Company recognized the deferred taxes of $0.3 million for the tax effect of that temporary difference as an adjustment to the equity component included in additional paid-in capital in the condensed consolidated balance sheet.

Debt issuance costs for the issuance of the Notes due 2024 were approximately $4.6 million, consisting of initial purchasers' discount and other issuance costs. In accounting for the transaction costs, the Company allocated the total amount incurred to the liability and equity components using the same proportions as the proceeds from the Notes due 2024. Transaction costs attributable to the liability component were approximately $3.3 million, were recorded as debt issuance cost (presented as contra debt in the condensed consolidated balance sheet) and are being amortized to interest expense over the term of the Notes due 2024. The transaction costs attributable to the equity component were approximately $1.3 million and were netted with the equity component in stockholders’ equity. As of September 30, 2020 and December 31, 2019, the unamortized deferred issuance cost for the Notes due 2024 was ~~$3.1~~$2.4 million and $2.9 million, respectively, on the condensed consolidated balance ~~sheet.~~sheets.

The following table presents the total amount of interest cost recognized relating to the Notes due 2024:


					Three Months Ended September 30,				Nine Months Ended September 30,
	Three Months Ended September 30, 2019		Nine Months Ended September 30, 2019		2020		2019		2020		2019
	(In thousands)				(In thousands)
Contractual interest expense	$	330	$	422	$	330	$	330	$	990	$	422
Amortization of debt discount	1,523		1,939		1,645		1,523		4,828		1,939
Amortization of debt issuance costs	165		210		166		165		498		210
Total interest cost recognized	$	2,018	$	2,571	$	2,141	$	2,018	$	6,316	$	2,571

The effective interest rate on the liability component Notes due 2024 was 7.75% for ~~each of~~ the three and nine months ended September 30, ~~2019,~~2020, which ~~remain~~remains unchanged from the date of issuance. The remaining unamortized debt discount was ~~$34.4~~$28.0 million and $32.9 million as of September 30, 2020 and December 31, 2019, respectively, will be amortized over approximately ~~4.7 years.~~3.7 years from September 30, 2020.

~~The Company carries the~~ Notes due 2024 at face value less unamortized discount and issuance costs on its condensed consolidated balance sheet. The fair value of the Notes due 2024 was determined to be $201.3 million based on the closing trading prices per $100 principal amount as of the last day of trading for the period. The Company considers the fair value of the Notes due 2024 to be a Level 2 measurement as they are not actively traded.

~~Convertible Note~~ Hedge and Warrant Transactions

In connection with the offering of the Notes due 2024, the Company entered into privately-negotiated convertible note hedge transactions pursuant to which the Company has the option to purchase a total of approximately 6.4 million shares of its common stock (subject to anti-dilution adjustments), which is the same number of shares initially issuable upon conversion of the notes, at a price of $20.5010 per share, which is the initial conversion price of the Notes due 2024. The total cost of the convertible note hedge transactions was approximately $36.3 million. The convertible note hedge transactions are expected generally to reduce potential dilution to the Company’s common stock upon any conversion of the Notes due 2024 and/or offset any cash payments the Company is required to make in excess of the principal amount of converted notes, as the case may be. As of September 30, ~~2019,~~2020, and through the date of this quarterly report, the Company had not purchased any shares under the convertible note hedge transactions.

Additionally, the Company separately entered into privately-negotiated warrant transactions (the “Warrants”) whereby the Company sold warrants to acquire approximately 6.4 million shares of the Company’s common stock (subject to anti-dilution adjustments) at an initial strike price of $25.2320 per share. The Company received aggregate proceeds of approximately $29.8 million from the sale of the Warrants. If the market value per share of the Company’s common stock, as measured under the Warrants, exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on the Company’s earnings per share, unless the Company elects, subject to certain conditions, to settle the Warrants in cash. Taken together, the purchase of the convertible note hedges and the sale of the Warrants are intended to reduce potential dilution from the conversion of the Notes due 2024 and to effectively increase the overall conversion price from $20.5010 to $25.2320 per share. The Warrants are only exercisable on the applicable expiration dates in accordance with the Warrants. Subject to the other terms of the Warrants, the first expiration date applicable to the Warrants is September 1, 2024, and the final expiration date applicable to the Warrants is April 22, 2025. As of September 30, ~~2019,~~2020, and through the report date, the Warrants had not been exercised and remained outstanding.

Enphase Energy, Inc. | 2020 Form 10-Q | 20

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Given that the transactions meet certain accounting criteria, the ~~convertible note~~Notes due 2024 hedge ~~transactions~~ and the warrants transactions are recorded in stockholders’ equity, and they are not accounted for as derivatives and are not remeasured each reporting period.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 16

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

Convertible Senior Notes due 2023

In August 2018, the Company sold $65.0 million aggregate principal amount of 4.0% convertible senior notes due 2023 (the “Notes due 2023”) in a private placement. On May 30, 2019, the Company entered into separately and privately negotiated transactions with certain holders of the Notes due 2023 resulting in the repurchase and exchange, as of June 5, 2019, of $60.0 million aggregate principal amount of the notes in consideration for the issuance of 10,801,080 shares of common stock and separate cash payments totaling $6.0 million. As of both September 30, 2020 and December 31, 2019, $5.0 million aggregate principal amount of the Notes due 2023 remain outstanding.

The remaining outstanding Notes due 2023 are general unsecured obligations and bear interest at a rate of 4.0% per year, payable semi-annually on February 1 and August 1 of each year. The Notes due 2023 are governed by an indenture between the Company and U.S. Bank National Association, as trustee. The remaining outstanding Notes due 2023 will mature on August 1, 2023, unless earlier repurchased by the Company or converted at the option of the holders. The Company may not redeem the remaining Notes due 2023 prior to the maturity date, and no sinking fund is provided for such notes. The remaining Notes due 2023 are convertible, at a holder’s election, in multiples of $1,000 principal amount, into shares of the Company’s common stock based on the applicable conversion rate. The initial conversion rate for such notes is 180.0180 shares of common stock per $1,000 principal amount of notes (which is equivalent to an initial conversion price of approximately $5.56 per share). The conversion rate and the corresponding conversion price are subject to adjustment upon the occurrence of certain events but will not be adjusted for any accrued and unpaid interest. Holders of the remaining Notes due 2023 who convert their notes in connection with a make-whole fundamental change (as defined in the applicable indenture) are, under certain circumstances, entitled to an increase in the conversion rate. Additionally, in the event of a fundamental change, holders of the remaining Notes due 2023 may require the Company to repurchase all or a portion of their notes at a price equal to 100% of the principal amount of notes, plus any accrued and unpaid interest, including any additional interest to, but excluding, the repurchase date. Holders may convert all or any portion of their Notes due 2023 at their option at any time prior to the close of business on the business day immediately preceding the maturity date, in multiples of $1,000 principal amount.

During the nine months ended September 30, 2019, the Company recognized $6.0 million inducement cost in other expense, net on the Company’s condensed consolidated statement of operations and reclassed $2.0 million of deferred issuance costs, offset by $0.8 million in accrued interest in additional paid in capital on the Company’s condensed consolidated balance sheet as of September 30, 2019 related to the exchange of $60.0 million aggregate principal amount of the Notes due 2023 consummated by the Company on June 5, 2019.

The following table presents the amount of interest cost recognized relating to the contractual interest coupon and the amortization of debt issuance costs of the Notes due 2023.


	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018		2020		2019		2020		2019
	(In thousands)								(In thousands)
Contractual interest expense	$	43	$	325	$	1,176	$	325	$	50	$	43	$	150	$	1,176
Amortization of debt issuance costs	10		64		235		64		10		10		30		235
Total interest costs recognized	$	53	$	389	$	1,411	$	389	$	60	$	53	$	180	$	1,411

~~Term Loan~~Sale of Long-Term Financing Receivables

In July 2016, the Company entered into a Loan and Security Agreement (the “Original Term Loan Agreement”) with lenders that are affiliates of Tennenbaum Capital Partners, LLC. In February 2017, theThe Company entered into an ~~Amended~~agreement with a third party in the fourth quarter of 2017 to sell certain current and ~~Restated Loan and Security Agreement (the “Loan Agreement”)~~future receivables at a discount. In December 2017, the third party made an initial purchase of receivables that ~~amended and restated the Original Term Loan Agreement. The Loan Agreement provided for a $25.0 million secured term loan~~resulted in net proceeds to the Company ~~(the “New Term Loan”), which is~~of $2.8 million. This transaction was recorded as debt on the accompanying consolidated balance sheets, and the debt balance was relieved in ~~addition~~January 2019 as the underlying receivables were settled. During the year ended December 31, 2018, the third party made three additional purchases of receivables that resulted in total net proceeds to the ~~$25.0 million secured term loan borrowed~~Company of $5.6 million. These transactions were recorded as debt on the accompanying condensed consolidated balance sheets, and the total associated debt balance will be relieved by September 2021 as the ~~Company under the Original Term Loan Agreement (together with the “New Term Loan” the “Term Loans”).~~

~~On January 28, 2019, the Company repaid in full the remaining principal amount of the Term Loans of approximately $39.5 million plus accrued interest and fees.~~underlying receivables are settled.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1721

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)


9.	COMMITMENTS AND ~~CONTINGENT LIABILITIES~~CONTINGENCIES

Operating Leases

The Company leases office facilities under noncancelable operating leases that expire on various dates through 2028, some of which may include options to extend the leases for up to 12 years.

The components of lease expense are presented as follows:

Three Months Ended
September 30, 2019 Nine Months Ended
September 30, 2019
(In thousands)
Operating lease costs $ 1,161
$ 2,909



	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In thousands)
Operating lease costs	$	1,274	$	1,161	$	3,776	$	2,909

The components of lease liabilities are presented as follows:


	September 30, 2019		September 30, 2020		December 31, 2019
	(In thousands)		(In thousands)
Operating lease liabilities, current (Accrued liabilities)	$	3,067	$	4,245	$	3,170
Operating lease liabilities, noncurrent (Other liabilities)	10,268		12,417		9,542
Total operating lease liabilities	$	13,335	$	16,662	$	12,712

Supplemental lease information:
Weighted average remaining lease term	5.7 years		5.6 years		5.5 years
Weighted average discount rate	8.6%		8.1%		8.6%

Supplemental cash flow and other information related to operating leases, are as follows:

Three Months Ended
September 30, 2019 Nine Months Ended
September 30, 2019
(In thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases $ 1,019
$ 2,613

Non-cash investing activities:
Lease liabilities arising from obtaining right-of-use assets $ —
$ 4,834

~~Undiscounted cash flows of operating lease liabilities as of September 30, 2019 are as follows:~~

Lease Amounts
(In thousands)
Year:
2019 (remaining three months) $ 1,019
2020 4,137
2021 4,217
2022 2,906
2023 2,169
2024 and thereafter 1,586
Total lease payments 16,034
Less: imputed lease interest (2,699 )
Total lease liabilities $ 13,335



	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	1,252	$	1,019	$	3,411	$	2,613

Non-cash investing activities:
Lease liabilities arising from obtaining right-of-use assets	$	3,798	$	0	$	6,739	$	4,834

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 1822

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

~~As previously disclosed in the Company’s Annual Report on Form 10-K and under the previous~~Undiscounted cash flows of operating lease ~~accounting standard ASC 840, “Leases,” the aggregate future minimum lease payments under the Company’s noncancelable operating leases,~~liabilities as of ~~December 31, 2018,~~September 30, 2020 are as follows:

Lease Amounts
(In thousands)
Year:
2019 $ 3,738
2020 3,532
2021 3,276
2022 1,810
2023 945
Thereafter 1,252
Total 14,553
Sublease income to be recognized in the future under noncancelable subleases (922 )
Net operating lease minimum payments $ 13,631



	Lease Amounts
	(In thousands)
Year:
2020 (remaining three months)	$	1,345
2021	5,436
2022	4,155
2023	3,518
2024	2,523
2025 and thereafter	2,686
Total lease payments	19,663
Less: imputed lease interest	(3,001		)
Total lease liabilities	$	16,662

~~Litigation~~Purchase Obligations

~~From time-to-time,~~The Company has contractual obligations related to component inventory that its primary contract manufacturer procures on its behalf in accordance with its production forecast as well as other inventory related purchase commitments. As of September 30, 2020, these purchase obligations totaled approximately $115.1 million.

Letter of Credits

The Company had a standby letter of credit that expired on April 30, 2020 in the aggregate amount of $44.7 million, primarily in connection with one of its customer contracts. The letter of credit served as a performance security for product delivered to the customer in the first quarter of 2020. NaN amounts were drawn against this letter of credit. As of September 30, 2020, the Company ~~may be involved in litigation~~has no letter of credit outstanding.

Litigation

The Company is subject to various legal proceedings relating to claims arising out of its ~~operations.~~operations that have not been fully resolved. The ~~Company~~outcome of litigation is ~~not currently involved in any material~~inherently uncertain. If one or more legal ~~proceedings; however,~~matters were resolved against the Company ~~may be involved~~ in ~~material legal proceedings in~~a reporting period for amounts above management’s expectations, the ~~future. Such matters are subject to uncertainty and there can be no assurance that such legal proceedings will not have a material effect on its~~Company’s business, results of operations, financial position and cash flows for that reporting period could be materially adversely affected. As of October 27, 2020, the Company is not currently a party to any matters that the management expects will have an adverse material effect on the Company’s consolidated financial position, results of operations or cash flows.

Contingencies

On March 26, 2020, the Office of the United States Trade Representative (the “USTR”) announced certain exclusion requests related to tariffs on Chinese imported microinverter products that fit the dimensions and weight limits within a Section 301 Tariff exclusion under U.S. note 20(ss)(40) to subchapter III of chapter 99 of the Harmonized Tariff Schedule of the United States (the “Tariff Exclusion”). The Tariff Exclusion applies to covered products under the China Section 301 Tariff Actions (“Section 301 Tariffs”) taken by the USTR exported from China to the United States from September 24, 2018 until August 7, 2020. Accordingly, the Company has sought refunds totaling approximately $39 million plus accrued interest on tariffs previously paid from September 24, 2018 to March 31, 2020 for certain microinverters that qualify for the Tariff Exclusion. The refund request is subject to review and approval by the U.S. Customs and Border Protection; therefore, the Company has assessed the probable loss recovery in the three and nine months ended September 30, 2020 is equal to the approved refund requests available to us prior to issuance of the financial statements on October 27, 2020.

Enphase Energy, Inc. | 2020 Form 10-Q | 23

Table of Contents

As of September 30, 2020, the Company had received $16.0 million of tariff refunds and accrued for $7.0 million tariff refunds that were approved, however, not yet received on or before September 30, 2020. As of both the three and nine months ended September 30, 2020, the Company has recorded $23.0 million as a reduction to cost of revenues in the Company’s condensed consolidated statements of operations as the approved refunds relate to paid tariffs previously recorded to cost of revenues, therefore, the Company recorded the corresponding approved tariff refunds as credits to cost of revenues in the current period. The tariff refund receivable of $7.0 million is recorded as a reduction of accounts payable to Flex Ltd. and affiliates (“Flex”), the Company’s manufacturing partner and the importer of record who will first receive the tariff refunds, on the Company’s condensed consolidated balance sheet as of September 30, 2020. Potential tariff refunds not recorded as of September 30, 2020 totaled approximately $16.0 million plus accrued interest and will be recognized as a reduction to cost of revenues if and when approved. Although the Company feels its requests for refunds are supportable, it cannot be sure such requests will not be challenged by the government. The Company is also unable to predict the timing of receipt of any amounts approved.

The Tariff Exclusion expired on August 7, 2020 and those microinverter products now are subject to tariffs. The Company continues to pay Section 301 Tariffs on its storage and communication products and other accessories imported from China which are not subject to the Tariff Exclusion.


10.	STOCK-BASED COMPENSATION

Stock-based Compensation Expense

Stock-based compensation expense for all stock-based awards expected to vest is measured at fair value on the date of grant and recognized ratably over the requisite service period. The following table summarizes the components of total stock-based compensation expense included in the condensed consolidated statements of operations for the periods presented.


	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018		2020		2019		2020		2019
	(In thousands)								(In thousands)
Cost of revenues	$	497	$	330	$	1,114	$	945	$	1,294	$	497	$	3,237	$	1,114
Research and development	1,411		878		3,255		2,645		4,248		1,411		9,430		3,255
Sales and marketing	1,541		1,151		3,900		2,509		3,952		1,541		9,504		3,900
General and administrative	1,996		1,692		5,013		3,812		4,905		1,996		12,043		5,013
Restructuring	331		—		718		—		0		331		0		718
Total	$	5,776	$	4,051	$	14,000	$	9,911	$	14,399	$	5,776	$	34,214	$	14,000

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 19

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

The following table summarizes the various types of stock-based compensation expense for the periods presented.


	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018		2020		2019		2020		2019
	(In thousands)								(In thousands)
Stock options, RSUs, and PSUs	$	5,546	$	3,708	$	13,528	$	9,001	$	13,781	$	5,546	$	32,415	$	13,528
Employee stock purchase plan	230		343		472		910		618		230		1,799		472
Total	$	5,776	$	4,051	$	14,000	$	9,911	$	14,399	$	5,776	$	34,214	$	14,000

As of September 30, ~~2019,~~2020, there was approximately ~~$33.6~~$74.7 million of total unrecognized stock-based compensation expense related to unvested equity awards, which are expected to be recognized over a weighted-average period of ~~2.3~~2.2 years.

No income tax benefit has been recognized relating to stock-based compensation expense and no tax benefits have been realized from exercised stock options for the three and nine months ended September 30, 2019.

Enphase Energy, Inc. | 2020 Form 10-Q | 24

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Valuation of Equity Awards

Stock Options

The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:

•

Expected term—The expected term of the option awards represents the period of time between the grant date of the option awards and the date the option awards are either exercised, converted or canceled, including an estimate for those option awards still outstanding. The Company used the simplified method, as permitted by the SEC for companies with a limited history of stock option exercise activity, to determine the expected term for its option grants.


•	Expected volatility—The expected volatility was calculated based on the Company’s historical stock prices, supplemented as necessary with historical volatility of the common stock of several peer companies with characteristics similar to those of the Company.


•	Risk-free interest rate—The risk-free interest rate was based on the U.S. Treasury yield curve in effect at the time of grant and with a maturity that approximated the Company’s expected term.


•	Dividend yield—The dividend yield was based on the Company’s dividend history and the anticipated dividend payout over its expected term.

The following table presents the weighted-average grant date fair value of options granted for the periods presented and the assumptions used to estimate those values using a Black-Scholes option pricing model.



	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020			2019
Weighted average grant date fair value	**	**	$	38.45		$	9.16
Expected term (in years)	**	**	3.8			3.8
Expected volatility	**	**	86.4		%	89.1		%
Annual risk-free rate of return	**	**	0.1		%	2.1		%
Dividend yield	**	**	0		%	0		%

Three Months Ended
September 30, Nine Months Ended
September 30,
2019 2018 2019 2018
Weighted average grant date fair value ** ** $ 9.16
$ 2.83
Expected term (in years) ** ** 3.8
4.0
Expected volatility ** ** 89.1 % 88.5 %
Annual risk-free rate of return ** ** 2.1 % 2.6 %
Dividend yield ** ** — % — %

** No options were granted during the three months ended September 30, 2019 and 2018.


**	NaN stock options were granted during the three months ended September 30, 2020 and 2019.

Restricted Stock Units

The fair value of the Company’s restricted stock units (“RSU”) awards granted is based upon the closing price of the Company’s stock price on the date of grant.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 20

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

Performance Stock Units

The fair value of the Company’s non-market performance stock units (“PSU”) awards granted was based upon the closing price of the Company’s stock price on the date of grant. The fair value of awards of the Company’s PSU awards containing market conditions was determined using a Monte Carlo simulation model based upon the terms of the conditions, the expected volatility of the underlying security, and other relevant factors.

Enphase Energy, Inc. | 2020 Form 10-Q | 25

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Equity Awards Activity

Stock Options

The following is a summary of stock option activity.

Number of
Shares
Outstanding Weighted-
Average
Exercise Price
per Share Weighted-
Average
Remaining
Contractual
Term
Aggregate
Intrinsic
Value ⁽¹⁾
(In thousands) (Years) (In thousands)
Outstanding at December 31, 2018 6,772
$ 1.76

Granted 43
14.58

Exercised (2,222 ) 1.20
$ 21,844
Canceled (102 ) 4.07

Outstanding at September 30, 2019 4,491
$ 2.11
4.5 $ 90,358
Vested and expected to vest at September 30, 2019 4,491
$ 2.11
4.5 $ 90,358
Exercisable at September 30, 2019 3,085
$ 2.32
4.3 $ 61,415



	Number of Shares Outstanding		Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value ⁽¹⁾
	(In thousands)				(Years)	(In thousands)
Outstanding at December 31, 2019	4,097		$	2.18
Granted	11		64.17
Exercised	(1,062	)	2.41			$	56,357
Canceled	(82	)	6.94
Outstanding at September 30, 2020	2,964		$	2.19	3.8	$	238,224
Vested and expected to vest at September 30, 2020	2,964		$	2.19	3.8	$	238,224
Exercisable at September 30, 2020	2,349		$	2.22	3.7	$	188,809

(1)

The intrinsic value of options exercised is based upon the value of the Company’s stock at exercise. The intrinsic value of options outstanding, vested and expected to vest, and exercisable as of September 30, ~~2019~~2020 is based on the closing price of the ~~Company’s stock fair value on September 30, 2019 or the earlier of the~~ last trading day ~~prior to~~during the period ended September 30, ~~2019, if September 30, 2019 is a non-trading day.~~2020. The Company’s stock fair value used in this computation was ~~$22.23~~$82.59 per share.

The following table summarizes information about stock options outstanding at September 30, ~~2019.~~2020.


	Options Outstanding				Options Exercisable			Options Outstanding				Options Exercisable
Range of Exercise Prices	Number of Shares	Weighted- Average Remaining Life	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Remaining Life	Weighted- Average Exercise Price		Number of Shares	Weighted- Average Exercise Price
	(In thousands)	(Years)			(In thousands)			(In thousands)	(Years)			(In thousands)
$0.64 —– $1.11	848	5.2	$	0.82	567	$	0.78
$0.70 —– $1.11								687	4.3	$	0.82	554	$	0.82
$1.29 —– $1.29	1,000	5.0	1.29		500	1.29		1,000	4.0	1.29		750	1.29
$1.31 —– $1.31	1,601	4.5	1.31		1,205	1.31		709	3.5	1.31		563	1.31
$1.37 —– $7.68	899	3.5	4.17		699	4.66
$7.77 —– $14.58	143	3.8	11.57		114	10.82
$1.37 —– $14.58								557	3.1	5.44		479	5.96
$64.17 —– $64.17								11	6.6	64.17		3	64.17
Total	4,491	4.5	2.11		3,085	2.32		2,964	3.8	$	2.19	2,349	$	2.22

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 2126

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Restricted Stock Units

The following is a summary of RSU activity.


	Number of Shares Outstanding		Weighted- Average Fair Value per Share at Grant Date		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value ⁽¹⁾		Number of Shares Outstanding		Weighted- Average Fair Value per Share at Grant Date		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value ⁽¹⁾
	(In thousands)				(Years)	(In thousands)		(In thousands)				(Years)	(In thousands)
Outstanding at December 31, 2018	4,352		$	3.52
Outstanding at December 31, 2019								4,263		$	7.19
Granted	1,997		10.86					1,262		40.76
Vested	(1,317	)	3.62			$	18,853	(1,705	)	6.87			$	78,855
Canceled	(461	)	4.54					(84	)	20.78
Outstanding at September 30, 2019	4,571		$	6.60	1.3	$	101,604
Expected to vest at September 30, 2019	4,571		$	6.60	1.3	$	101,604
Outstanding at September 30, 2020								3,736		$	18.37	1.13	$	308,555
Expected to vest at September 30, 2020								3,736		$	18.37	1.13	$	308,555

(1)

The intrinsic value of RSUs vested is based upon the value of the Company’s stock when vested. The intrinsic value of RSUs outstanding and expected to vest as of September 30, ~~2019~~2020 is based on the closing price of the ~~Company’s stock on September 30, 2019 or the earlier of the~~ last trading day ~~prior to~~during the period ended September 30, ~~2019, if September 30, 2019 is a non-trading day.~~2020. The Company’s stock fair value used in this computation was ~~$22.23~~$82.59 per share.

Performance Stock Units

The following is a summary of PSU activity.


	Number of Shares Outstanding		Weighted- Average Fair Value per Share at Grant Date		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value ⁽¹⁾		Number of Shares Outstanding		Weighted- Average Fair Value per Share at Grant Date		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value ⁽¹⁾
	(In thousands)				(Years)	(In thousands)		(In thousands)				(Years)	(In thousands)
Outstanding at December 31, 2018	1,330		$	4.66
Outstanding at December 31, 2019								955		$	9.83
Granted	1,052		9.48					989		31.12
Vested	(1,026	)	4.63			$	9,925	(1,450	)	10.20			$	52,144
Canceled	(364	)	5.16					0		0
Outstanding at September 30, 2019	992		$	9.63	0.5	$	22,050
Outstanding at September 30, 2020								494		$	51.10	0.4	$	40,793

(1)

The intrinsic value of PSUs vested is based upon the value of the Company’s stock when vested. The intrinsic value of PSUs outstanding and expected to vest as of September 30, ~~2019~~2020 is based on the closing price of the ~~Company’s stock on September 30, 2019 or the earlier of the~~ last trading day ~~prior to~~during the period ended September 30, ~~2019, if September 30, 2019 is a non-trading day.~~2020. The Company’s stock fair value used in this computation was ~~$22.23~~$82.59 per share.


11.	INCOME TAXES

For the three and nine months ended September 30, 2020, the Company’s income tax provision of $5.5 million and income tax benefit of $12.9 million, respectively, on a net income before income taxes of $44.8 million and $48.1 million, respectively, calculated using the annualized effective tax rate method, was primarily due to tax deduction from employee stock compensation as a discrete event, partially offset by projected tax expense in the U.S. and foreign jurisdictions that are profitable. For the three and nine months ended September 30, 2019, the Company’s income tax provision of $0.3 million and $1.2 million, respectively, on income before income taxes of $31.4 million and $45.7 million, respectively, calculated using the discrete tax approach, was primarily related to income taxes attributable to its foreign operations.

For the three and nine months ended September 30, 2020, in accordance with FASB guidance for interim reporting of income tax, the Company has computed its provision for income taxes based on a projected annual effective tax rate while excluding loss jurisdictions which cannot be benefited.

Enphase Energy, Inc. | 2020 Form 10-Q | 27

Table of Contents

ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company used the discrete tax approach in calculating the tax expense for the three and nine months ended September 30, 2019 ~~and 2018~~ due to the fact that a relatively small change in the Company’s projected pre-tax net income (loss) could result in a volatile effective tax rate. Under the discrete method, the Company determines its tax (expense) benefit based upon actual results as if the interim period was an annual period. The tax provision recorded was primarily related to income taxes attributable to its foreign operations.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 22

~~Table of Contents~~

~~ENPHASE ENERGY, INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~

~~(Unaudited)~~

The Company intends to continue maintaining a full valuation allowance on its deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of these allowances. If the Company continues to maintain profitability, there is a reasonable possibility that, within the next 12 months, sufficient positive evidence may become available to reach a conclusion that a significant portion, or all, of the valuation allowance will no longer be needed. As such, the Company may release a significant portion, or all, of its valuation allowance against its deferred tax assets within the next 12 months. This release, if any, would result in the recognition of certain deferred tax assets and a decrease to income tax expense for the period such release is recorded.


12.	NET INCOME ~~(LOSS)~~ PER SHARE

Basic net income ~~(loss)~~ per share is computed by dividing net income ~~(loss)~~ by the weighted average number of shares of common stock outstanding during the period. Diluted net income ~~(loss)~~ per share is computed in a similar manner, but it also includes the effect of potential common shares outstanding during the period, when dilutive. Potential common shares include ~~stock options,~~Stock Options, RSUs, PSUs, shares to be purchased under the Company’s ~~employee stock purchase program (“ESPP”),~~ESPP, the Notes due 2023, the Notes due 2024, ~~and warrants~~Warrants issued in conjunction with the Notes due ~~2024.~~ 2024, and from May 20, 2020 to the end of the reporting period, the Notes due 2025 and Warrants issued in conjunction with the Notes due 2025. See Note 8. “Debt” for additional information.

The dilutive effect of potentially dilutive common shares is reflected in diluted earnings per share by application of the treasury stock method for stock options, RSUs, PSUs, ~~warrants,~~ Notes due 2024, warrants issued in conjunction with the Notes due 2024, Notes due 2025, warrants issued in conjunction with the Notes due 2025 and shares to be purchased under the ESPP, and by application of the if-converted method for the Notes due 2023. To the extent these potential common shares are antidilutive, they are excluded from the calculation of diluted net income ~~(loss)~~ per share.

The following table presents the computation of basic and diluted net income ~~(loss)~~ per share for the periods presented.


	Three Months Ended September 30,					Nine Months Ended September 30,					Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018			2019		2018			2020		2019		2020		2019
	(In thousands, except per share data)										(In thousands, except per share data)
Numerator:
Net income (loss)	$	31,099	$	(3,470	)	$	44,482	$	(12,336	)
Net income											$	39,362	$	31,099	$	61,004	$	44,482
Notes due 2023 interest and financing costs, net	39		—			1,046		—			44		39		133		1,046
Adjusted net income (loss)	$	31,138	$	(3,470	)	$	45,528	$	(12,336	)
Adjusted net income											$	39,406	$	31,138	$	61,137	$	45,528

Denominator:
Shares used in basic per share amounts:
Weighted average common shares outstanding	122,123		102,798			114,720		97,257			126,109		122,123		125,084		114,720

Shares used in diluted per share amounts:
Weighted average common shares outstanding	122,123		102,798			114,720		97,257			126,109		122,123		125,084		114,720
Effect of dilutive securities:
Employee stock-based awards	9,200		—			8,937		—			6,330		9,200		7,123		8,937
Warrants	100		—			—		—
Warrants (issued in conjunction with Notes due 2024)											4,013		100		3,251		0
Notes due 2024	1,288		—			385		—			4,468		1,288		3,849		385
Notes due 2023	900		—			7,072		—			900		900		900		7,072
Weighted average common shares outstanding for diluted calculation	133,611		102,798			131,114		97,257			141,820		133,611		140,207		131,114

Basic and diluted net income (loss) per share
Net income (loss) per share, basic	$	0.25	$	(0.03	)	$	0.39	$	(0.13	)
Net income (loss) per share, diluted	$	0.23	$	(0.03	)	$	0.35	$	(0.13	)
Basic and diluted net income per share
Net income per share, basic											$	0.31	$	0.25	$	0.49	$	0.39
Net income per share, diluted											$	0.28	$	0.23	$	0.44	$	0.35

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 2328

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ENPHASE ENERGY, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The following outstanding shares of common stock equivalents were excluded from the calculation of the diluted net income ~~(loss)~~ per share attributable to common stockholders because their effect would have been antidilutive.

Three Months Ended
September 30, Nine Months Ended
September 30,
2019 2018 2019 2018
(In thousands)
Employee stock-based awards 11
13,328
112
13,077



	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
	(In thousands)
Employee stock-based awards	36	11	64	112
Warrants (issued in conjunction with Notes due 2025)	2,342	0	2,832	0
Notes due 2025	854	0	1,458	0
Total	3,232	11	4,354	112

Diluted earnings per share for the three and nine months ended September 30, 2020 includes the dilutive effect of stock options, RSUs, PSUs, shares to be purchased under the ESPP, the Notes due 2023, the Notes due 2024 and warrants issued in conjunction with the Notes due 2024. Certain common stock issuable under stock options, RSUs, PSUs, Notes due 2025 and warrants issued in conjunction with the Notes due 2025 have been omitted from the diluted net income per share calculation because including such shares would have been antidilutive.

Diluted earnings per share for the three and nine months ended September 30, 2019 includes the dilutive effect of stock options, RSUs, PSUs, ~~and~~ shares to be purchased under the ESPP, the Notes due 2023, Notes due 2024 and warrants issued in conjunction with the Notes due 2024. Certain common stock issuable under stock options, RSUs and PSUs have been omitted from the diluted net income per share calculation because including such shares would have been antidilutive.

Since the Company has the intent and ability to settle the aggregate principal amount of the Notes due 2024 and Notes due 2025 in cash and any excess in shares of the Company’s common stock, the Company uses the treasury stock method for calculating any potential dilutive effect of the conversion spread on diluted net income per share, if applicable. In order to compute the dilutive effect, the number of shares included in the denominator of diluted net income per share is determined by dividing the conversion spread value of the “in-the-money” Notes due 2024 and Notes due 2025 by the Company’s average share price during the period and including the resulting share amount in the diluted net income per share denominator. The conversion spread will have a dilutive impact on net income per share of common stock when the average market price of the Company’s common stock for a given period exceeds the conversion price of ~~$20.5010~~$20.50 per share and $81.54 per share for the Notes due ~~2024. The Company’s weighted average common stock price since the issuance of the~~2024 and Notes due ~~2024 was above the conversion price, resulting in an impact on the diluted net income per share.~~

Diluted earnings per shares for the three and nine months ended September 30, 2018, excludes potential common stock issuable under stock options, RSUs, PSUs, and shares to be purchased under the ESPP and the Notes due 2023, as the Company incurred a net loss during these periods and including such shares would have been antidilutive.2025, respectively.


13.	RELATED PARTY

The Company sells products to SunPower under the August 2018 MSA, which as of September 30, 2019 and December 31, 2018 via its wholly owned subsidiary, held 6.5 million shares and 7.5 million shares, respectively, of the Company’s common stock. Revenue recognized under the MSA for the three and nine months ended September 30, 2019 was $29.5 million and $50.7 million, respectively, net of amortization of the customer relationship intangible asset (see Note 4~~. “Goodwill and Intangible Assets”). At September 30, 2019 and December 31, 2018, the Company had accounts receivable of $24.7 million and $10.3 million, respectively, from SunPower.~~

In 2018, a member of the Company’s board of directors and one of its principal stockholders, Thurman John Rodgers, purchased $5.0 million aggregate principal amount of the Notes due 2023 in a concurrent private placement. As of both September 30, ~~2019~~2020 and December 31, ~~2018,~~2019, $5.0 million aggregate principal amount of the Notes due 2023 were outstanding. See Note 8. “Debt” for additional information related to this purchase.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

The following discussion and analysis of our financial condition and results of operations should be read together with our ~~condensed~~ consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q. This discussion contains forward-looking statements reflecting our current expectations and involves risks and uncertainties. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “intend,” “potential” or “continue” or the negative of these terms or other comparable terminology. Such statements, include but are not limited to statements regarding our expectations as to the impact of the ongoing COVID-19 pandemic, future financial performance, expense levels, liquidity sources, the capabilities and performance of our technology and products and planned changes, timing of new product releases, our business strategies, including anticipated trends, growth and developments in markets in which we target, the anticipated market adoption of our current and future products, performance in operations, including component supply management, product quality and customer service, impact of current litigation on our business, results of operation, financial position or cash flows, and the anticipated benefits and risks relating to the transaction with SunPower Corporation. Our actual results and the timing of events may differ materially from those discussed in our forward-looking statements as a result of various factors, including those discussed below and those discussed in the section entitled “Risk Factors” included in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018.~~2019.

Overview ~~and 2019 Highlights~~

We are a global energy technology company. We deliver smart, easy-to-use solutions that ~~connect~~manage solar generation, storage and ~~management~~communication on one intelligent platform. We revolutionized the solar industry with our microinverter technology and we produce a ~~fully-integrated solar plus storage~~fully integrated solar-plus-storage solution. WeTo date, we have shipped more than 2330 million microinverters, and ~~more than 997,000~~approximately 1.3 million Enphase residential and commercial systems have been deployed in more than 130 countries.

We sell our solutions primarily to distributors who resell them to solar installers. We also sell directly to large installers, ~~original equipment manufacturers (“OEMs”),~~OEMs, strategic partners and homeowners. ~~We anticipate that our~~Our revenue ~~for~~in the ~~second half~~first quarter of ~~2019 to be~~2020 was positively impacted by the scheduled phase-down of the investment tax credit for solar projects under Section 48(a) (the “ITC”) of the Internal Revenue Code of 1986, as amended (the “Code”). The ~~current~~historical ITC percentage ishas decreased from 30%~~, and the ITC percentage is scheduled to decrease~~ to 26% of the basis of a solar energy system that ~~begins~~began construction during 2020, 22% for 2021, and zero for residential and 10% for commercial if construction begins after 2021 or if the solar energy system is placed into service after 2023. As a result, several of our customers ~~are currently exploring~~explored opportunities to purchase products in 2019 to take advantage of safe harbor guidance from the IRS published in June 2018, allowing them to preserve the ~~current~~historical 30% investment tax credit for solar equipment purchased in 2019 for solar projects that are completed after December 31, 2019. ~~We anticipate that these safe~~Safe harbor ~~purchases will positively affect our revenues~~prepayments from customers in the ~~second half~~fourth quarter of ~~2019.~~

~~On January 28,~~ 2019 ~~we repaid~~resulted in ~~full the remaining principal amount~~$44.5 million of ~~the Term Loans of approximately $39.5 million plus accrued interest and fees owed to lenders affiliated with Tennenbaum Capital Partners, LLC.~~

~~On May 30, 2019, we entered into separately and privately negotiated transactions with certain holders of our 4.0% Convertible Senior Notes due 2023~~ ~~(“Notes due 2023”) resulting~~revenue recognized in the ~~repurchase and exchange, as~~first quarter of ~~June 5, 2019, of $60.0 million aggregate principal amount of~~2020 when we delivered the ~~notes in consideration for the issuance of 10,801,080 shares of common stock and separate cash payments totaling $6.0 million.~~product.

On ~~June 5, 2019,~~March 9, 2020, we issued ~~$132.0~~$320.0 million aggregate principal amount of our ~~1.0%~~ Convertible Senior Notes due ~~2024~~2025 (the “Notes due ~~2024”~~2025”) in a private placement. The Notes due ~~2024~~2025 are general unsecured obligations and bear interest at a rate of ~~1.0%~~0.25% per year, payable semi-annually on ~~June~~March 1 and ~~December~~September 1 of each year, beginning on ~~December~~September 1, ~~2019.~~2020. The Notes due ~~2024~~2025 will mature on ~~June~~March 1, ~~2024,~~2025, unless earlier repurchased by us or converted at the option of the holders. Further information relating to the Notes due ~~2024~~2025 may be found in Note 8, “Debt,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q and below under “the section titled “- Liquidity and Capital ~~Resources~~.Resources.”

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On March 26, 2020, the Office of the United States Trade Representative (the “USTR”) announced certain exclusion requests related to tariffs on Chinese imported microinverter products that fit the dimensions and weight limits within a Section 301 Tariff exclusion under U.S. note 20(ss)(40) to subchapter III of chapter 99 of the Harmonized Tariff Schedule of the United States (the “Tariff Exclusion”). The Tariff Exclusion applies to covered products under the China Section 301 Tariff Actions (“Section 301 Tariffs”) taken by the USTR exported from China to the United States from September 24, 2018 until August 7, 2020. Accordingly, we sought refunds totaling approximately $39 million plus accrued interest on tariffs previously paid from September 24, 2018 to March 31, 2020 for certain microinverters that qualify for the Tariff Exclusion. The refund request is subject to review and approval by the U.S. Customs and Border Protection; therefore, we have assessed the probable loss recovery in the three and nine months ended September 30, 2020 is equal to the approved refund requests available to us prior to issuance of the financial statements on October 27, 2020.

As of September 30, 2020, we have received $16.0 million of tariff refunds and accrued for $7.0 million tariff refunds that were approved, however, not yet received on or before September 30, 2020. As of both the three and nine months ended September 30, 2020, we have recorded $23.0 million as a reduction to cost of revenues in our condensed consolidated statements of operations as the approved refunds relate to paid tariffs previously recorded to cost of revenues; therefore, we recorded the corresponding approved tariff refunds as credits to cost of revenues in the current period. The tariff refund receivable of $7.0 million is recorded as a reduction of accounts payable to Flex Ltd. and affiliates (“Flex”), our manufacturing partner and the importer of record who will first receive the tariff refunds, on the condensed consolidated balance sheet as of September 30, 2020. Potential tariff refunds not recorded as of September 30, 2020 totaled approximately $16.0 million plus accrued interest and will be recognized as a reduction to cost of revenues if and when approved. Although we feel the requests for refunds are supportable, we cannot be sure such requests will not be challenged by the government. We are also unable to predict the timing of receipt of any amounts approved.

The Tariff Exclusion expired on August 7, 2020 and those microinverter products now are subject to tariffs. We continue to pay Section 301 Tariffs on our storage and communication products and other accessories imported from China which are not subject to the Tariff Exclusion.

Impact of COVID-19

The ongoing COVID-19 pandemic (“COVID-19”) continues to cause disruptions and uncertainties, including in the core markets in which we operate. The COVID-19 pandemic has significantly curtailed the movement of people, goods and services and had a notable impact on general economic conditions including but not limited to the temporary closures of many businesses, “shelter in place” orders and other governmental regulations, and reduced consumer spending. The most significant near-term impacts of COVID-19 on our financial performance are a decline in sales orders as future residential and commercial system owners are canceling sales meetings with system installation professionals or postponing system installations. As the purchase of new solar energy management solutions declines as part of the impact of COVID-19 on consumer spending, many businesses through which we distribute our products are working at limited operational capacity. The extent of the impact of COVID-19 on our future operational and financial performance will depend on various future developments, including the duration and spread of the outbreak, impact on our employees, impact on our customers, effect on our sales cycles or costs, and effect on our supply chain and vendors, all of which are uncertain and cannot be predicted, but which could have a material adverse effect on our business, results of operations or financial condition. Further information relating to the risks and uncertainties related to the ongoing COVID-19 pandemic may be found in Part II, Item 1A “Risk Factors” of this Form 10-Q, as well as in the “Risk Factors” section in our 2019 Annual Report on Form 10-K that could be heightened due to duration and spread, among other impacts of the pandemic.

Products

We design, develop, manufacture and sell home energy solutions that manage energy generation, energy storage and control and communications on one intelligent platform. We have revolutionized the solar industry by bringing a systems approach to solar technology and by pioneering a semiconductor-based microinverter that converts energy at the individual solar module level and, combined with our proprietary networking and software technologies, provides advanced energy monitoring and control. This is vastly different than a central inverter system using string modules, with or without an optimizer, approach that only converts energy of the entire array of solar modules from a single high voltage electrical unit and lacks intelligence about the energy producing capacity of the solar array.

Enphase ~~IQ Microinverter System~~Energy, Inc. | 2020 Form 10-Q | 31

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The Enphase Home Energy Solution with IQ™ ~~microinverter~~platform enables self-consumption and delivers our core value proposition of yielding more energy, simplifying design and installation, and improving system uptime and reliability. The IQ™ family of microinverters, like all of our previous microinverters, is fully compliant with NEC 2014 and 2017 rapid shutdown requirements. Unlike string inverters, this capability is built-in, with no additional equipment necessary.

Our integrated approach to energy management helps to facilitate ease of installation and optimizing a ~~key component of the~~home’s energy usage. Enphase’s Always-On connected system also provides advanced monitoring and remote maintenance capabilities. The Enphase Home Energy ~~Solution™, which can also include~~Solution with IQ uses a single technology platform for seamless management of the whole solution, enabling rapid commissioning with the Installer Toolkit™; consumption monitoring with our Enphase Combiner 3C™ that includes the Envoy™ Communications Gateway, ~~with IQ Combiner+,~~ Enphase Enlighten™, a cloud-based energy management platform, Enphase IQ Combiner 3C™, designed to provide an uninterrupted connectivity to Enphase Enlighten, and our Enphase AC Battery™. System owners can use Enphase Enlighten to monitor their home’s solar generation, energy storage and consumption from any web-enabled device. Unlike some of our competitors, who utilize a traditional inverter, or offer separate components of solutions, we have built-in system redundancy in both photovoltaic (“PV”) generation and energy storage, eliminating the risk that comes with a single-point of failure. Further, the nature of our cloud-based, monitored system allows for remote firmware and software updates, enabling cost-effective remote maintenance and ongoing utility compliance.

The Enphase IQ ~~7 Micro™~~7™ microinverter and Enphase IQ 7+ ~~Micro™,~~™ microinverter, part of our seventh-generation IQIQ™ product family, support high-powered 60-cell and 72-cell solar modules and integrate with alternating current (“AC”) modules.

Our IQ 7X™ product addresses 96-cell ~~photovoltaic (“PV”)~~PV modules up to 400W direct current (“DC”) and with its 97.5 percent California Energy Commission (“CEC”) efficiency rating, is ideal for integration into high power modules. ~~In the third quarter of 2019, we shipped significant volumes of~~Our IQ ~~7AS™~~7A™ microinverters ~~to SunPower, which is expected to integrate our IQ 7AS into its 66-cell Next Generation Technology (“NGT”) DC modules.~~

During the third quarter of 2019, we introduced the Enphase IQ Combiner 3C™, an important component of the Enphase Home Energy Solution with IQ, designed to provide an uninterrupted connectivity to the Enphase Enlighten™ monitoring and service platform.

~~In November 2019, we plan to begin shipping to customers in North America our IQ™ 7A microinverters~~are for solar modules up to 450 W, targeting high-power residential and commercial applications. Our customers should be able to pair the IQ 7A microinverter with monofacial or bifacial solar modules, up to 450 W, from solar module manufacturers who are expected to introduce high-power variants of their products in the next three years.

AC Module (ACM) products are integrated systems which allow installers to be more competitive through improved logistics, reduced installation times, faster inspection and training. We continued to make steady progress during the third quarter of 2020 with our ACM partners, including SunPower, Panasonic Corporation of North America, LONGi Solar, Solaria Corporation, Hanwha Q CELLS, and Maxeon Solar Technologies. We announced during the third quarter of 2020 a strategic partnership with Sonnenstromfabrik (CS Wismar GmbH), one of Europe’s most modern, high-quality manufacturers of solar modules, to develop the first high-efficiency Enphase Energized™ ACM for the European residential solar market. These ACMs are available in Germany, Belgium, France, and the Netherlands.

Our next-generation battery in North America is Enphase Encharge 10™ or Encharge 3™ storage systems, with usable and scalable capacity of 10.1 kWh and 3.4 kWh, respectively. Enphase Encharge™ storage systems feature Enphase embedded grid-forming microinverters that enable the Always-On capability that keeps homes powered when the grid goes down, and the ability to save money when the grid is up. These systems are compatible with both new and existing Enphase IQ solar systems with IQ 6™ or IQ 7™ microinverters and provide a simple upgrade path for our existing solar customers. We started production shipments of Enphase Encharge storage systems to customers in North America during the second quarter of 2020.

Our next-generation IQ 8™ system is based upon our ~~grid-agnostic “always on” technology called~~Always On Enphase Ensemble™. energy management technology. This system has five components: 1) energy generation, which is accomplished with the grid-agnostic microinverter IQ 8; 2) energy storage, which is achieved by the Encharge™ battery with capacities of ~~3.3~~10.1 kWh and 103.4 kWh; 3) ~~an automatic transfer~~Enpower™ smart switch, ~~called Enpower™~~which includes a microgrid interconnect device (MID); 4) communication and control via the combiner box with the Envoy gateway; and 5) Enlighten, which is the internet of things, or IoT, cloud software. ~~We anticipate introducing Ensemble in a phased manner starting in the fourth quarter of 2019.~~

~~Results of Operations~~

~~Net Revenues~~

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
Net revenues $ 180,057
$ 78,002
$ 102,055
131 % $ 414,301
$ 223,870
$ 190,431
85 %

~~Three months ended September 30, 2019 and 2018~~

Net revenues increased by 131% for the three months ended September 30, 2019, as compared to the same period in 2018, primarily due to higher unit volume. We sold approximately 1,796,000 microinverter units in the three months ended September 30, 2019, as compared to approximately 665,000 units in the same period in 2018.

~~Nine months ended September 30, 2019 and 2018~~

Net revenues increased by 85% for the nine months ended September 30, 2019, as compared to the same period in 2018, primarily due to higher unit volume. We sold approximately 4,056,000 microinverter units in the nine months ended September 30, 2019, as compared to approximately 1,952,000 units in the same period in 2018.

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Results of Operations

Net Revenues



	Three Months Ended September 30,				Change in					Nine Months Ended September 30,				Change in
	2020		2019		$			%		2020		2019		$		%
	(In thousands, except percentages)
Net revenues	$	178,503	$	180,057	$	(1,554	)	(1	)%	$	509,586	$	414,301	$	95,285	23	%

Three months ended September 30, 2020 and 2019

Net revenues decreased by 1% or $1.6 million for the three months ended September 30, 2020, as compared to the same period in 2019, primarily due to the 20% decrease in microinverter unit volume shipped globally, partially offset by shipments of our Enphase Encharge storage systems to customers in North America. We sold approximately 1,443 thousand microinverter units in the three months ended September 30, 2020, as compared to approximately 1,796 thousand microinverter units in the same period in 2019.

Nine months ended September 30, 2020 and 2019

Net revenues increased by 23% or $95.3 million for the nine months ended September 30, 2020, as compared to the same period in 2019, primarily due to the 12% increase in microinverter unit volume shipped primarily as a result of business growth in the U.S., higher microinverter units shipped in the first quarter of 2020 as our customers took advantage of safe harbor guidance from the IRS and shipments of our Enphase Encharge storage systems to customers in North America. We sold approximately 4,543 thousand microinverter units in the nine months ended September 30, 2020, as compared to approximately 4,056 thousand microinverter units in the same period in 2019.

Cost of Revenues and Gross Profit


	Three Months Ended September 30,						Change in				Nine Months Ended September 30,						Change in				Three Months Ended September 30,						Change in					Nine Months Ended September 30,						Change in
	2019			2018			$		%		2019			2018			$		%		2020			2019			$			%		2020			2019			$		%
	(In thousands, except percentages)																				(In thousands, except percentages)
Cost of revenues	$	115,351		$	52,738		$	62,613	119	%	$	270,937		$	157,589		$	113,348	72	%	$	83,522		$	115,351		$	(31,829	)	(28	)%	$	285,543		$	270,937		$	14,606	5	%
Gross profit	64,706			25,264			39,442		156	%	143,364			66,281			77,083		116	%	94,981			64,706			30,275			47	%	224,043			143,364			80,679		56	%
Gross margin	35.9		%	32.4		%					34.6		%	29.6		%					53.2		%	35.9		%						44.0		%	34.6		%

Three months ended September 30, ~~2019~~2020 and ~~2018~~2019

Cost of revenues ~~increased~~decreased by ~~119%~~28% or $31.8 million for the three months ended September 30, ~~2019,~~2020, as compared to the same period in ~~2018,~~2019, primarily due to ~~higher volume~~$23.0 million in refunds approved for tariffs previously paid on certain microinverter products that meet the definition of ~~microinverter units sold and expedited freight costs, partially offset by~~the Tariff Exclusion, which is recorded as a reduction to our cost of revenues. Of the $39 million total refund sought, we have received an approval for $23.0 million through October 27, 2020, of which we had received $16.0 million in the three months ended September 30, 2020. In addition, the decline in cost of revenue period over period is due to a decrease in the unit cost of our products as a result of our cost reduction ~~efforts.~~ efforts and decrease in the volume of microinverter units sold, partially offset by shipments of our Enphase Encharge storage systems to customers in North America. The Tariff Exclusion expired on August 7, 2020.

Gross margin increased by ~~3.5~~17.3 percentage points for the three months ended September 30, ~~2019,~~2020, as compared to the same period in ~~2018.~~2019. The increase in gross margin was primarily attributable to ~~higher product margins as a result our IQ 7 family of microinverters, which has a lower cost than previous models of microinverters,~~the $23.0 million in refunds approved for tariffs mentioned above as well as our overall pricing and cost management ~~efforts. IQ 7 sales represent 99%~~efforts, including the transition of our ~~total microinverter sales for the three months ended September 30, 2019, as compared~~contract manufacturing to ~~78% of our total microinverter sales in in the same period in 2018.~~Mexico to mitigate tariffs, partially offset by a higher fixed costs per unit due to lower volume.

Nine months ended September 30, ~~2019~~2020 and ~~2018~~2019

Cost of revenues increased by ~~72%~~5% or $14.6 million for the nine months ended September 30, ~~2019,~~2020, as compared to the same period in ~~2018,~~2019, primarily due to higher volume of microinverter units sold and ~~expedited freight costs,~~shipments of our Enphase Encharge storage systems primarily as a result of business growth in the U.S., as well as higher units shipped in the first quarter of 2020 as our customers took advantage of safe harbor guidance from the IRS, partially offset by the $23.0 million in refunds approved for tariffs mentioned above and a decrease in the unit cost of our products as a result of our cost reduction efforts. Gross margin increased by 5.0 percentage points for the nine months ended September 30, 2019, as compared to the same period in 2018. The increase in gross margin was primarily attributable to higher product margins as a result our IQ 7 family of microinverters, which has a lower cost than previous models of microinverters, as well as our overall pricing and cost management efforts. IQ 7 sales represent 97% of our total microinverter sales for the nine months ended September 30, 2019, as compared to 37% of our total microinverter sales in in the same period in 2018.

~~Research and Development~~

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
Research and development $ 11,085
$ 8,165
$ 2,920
36 % $ 29,213
$ 25,247
$ 3,966
16 %

~~Three months ended September 30, 2019 and 2018~~

Research and development expense increased by 36% for the three months ended September 30, 2019, as compared to the same period in 2018. The increase is due to higher expenses associated with the development of our products, personnel-related costs and equipment costs. The increase in personnel-related expenses included higher compensation and higher travel expenditures due to increased headcount, partially offset by lower benefit and employee-related costs associated with moving certain functions to lower cost locations as part of restructuring actions taken in 2018.

~~Nine months ended September 30, 2019 and 2018~~

Research and development expense increased by 16% for the nine months ended September 30, 2019, as compared to the same period in 2018. The increase is due to higher expenses associated with the development of our products, personnel-related costs and equipment costs. The increase in personnel-related expenses included higher compensation and travel expenditures, partially offset by lower benefit and employee-related costs associated with moving certain functions to lower cost locations as part of restructuring actions taken in 2018.

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~~Sales~~Gross margin increased by 9.4 percentage points for the nine months ended September 30, 2020, as compared to the same period in 2019. The increase in gross margin was primarily attributable to the $23.0 million in refunds approved for tariffs mentioned above as well as our overall pricing and ~~Marketing~~cost management efforts, including the transition of our contract manufacturing to Mexico to mitigate tariffs.

Research and Development

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
Sales and marketing $ 9,551
$ 7,375
$ 2,176
30 % $ 26,038
$ 20,430
$ 5,608
27 %



	Three Months Ended September 30,						Change in				Nine Months Ended September 30,						Change in
	2020			2019			$		%		2020			2019			$		%
	(In thousands, except percentages)
Research and development	$	15,052		$	11,085		$	3,967	36	%	$	40,120		$	29,213		$	10,907	37	%
Percentage of net revenues	8		%	6		%					8		%	7		%

Three months ended September 30, ~~2019~~2020 and ~~2018~~2019

Research and development expense increased by 36% or $4.0 million for the three months ended September 30, 2020, as compared to the same period in 2019. The increase was primarily due to $4.3 million higher personnel-related expenses associated with the innovation and development, introduction and qualification of new products, partially offset by a $0.3 million reduction in travel expenditure as we implemented travel restrictions prohibiting all non-essential business travel. The increase in personnel-related expenses was primarily due to hiring employees in New Zealand, India and U.S., increasing total compensation costs. The amount of research and development expenses may fluctuate from period to period due to differing levels and stages of development activity.

Nine months ended September 30, 2020 and 2019

Research and development expense increased by 37% or $10.9 million for the nine months ended September 30, 2020, as compared to the same period in 2019. The increase was primarily due to $9.8 million higher personnel-related expenses and $1.5 million of outside consulting, engineering services and equipment associated with the innovation and development, introduction and qualification of new products, partially offset by a $0.4 million reduction in travel expenditure as we implemented travel restrictions prohibiting all non-essential business travel. The increase in personnel-related expenses was primarily due to hiring employees in New Zealand, India and US, increasing total compensation costs. The amount of research and development expenses may fluctuate from period to period due to differing levels and stages of development activity.

Sales and Marketing



	Three Months Ended September 30,						Change in				Nine Months Ended September 30,						Change in
	2020			2019			$		%		2020			2019			$		%
	(In thousands, except percentages)
Sales and marketing	$	14,645		$	9,551		$	5,094	53	%	$	38,788		$	26,038		$	12,750	49	%
Percentage of net revenues	8		%	5		%					8		%	6		%

Three months ended September 30, 2020 and 2019

Sales and marketing expense increased by ~~30%~~53% or $5.1 million for the three months ended September 30, ~~2019~~2020 as compared to the same period in ~~2018.~~2019. The increase was primarily due to ~~higher expenses associated with the amortization~~$3.7 million of ~~developed technology, patents and licensed technology acquired from SunPower, as well as an increase in~~higher personnel-related expenses as a result of our efforts to ~~increase net revenues and enhance~~improve customer ~~experience. The increase in personnel-related expenses included higher employee compensation, including stock-based compensation, bonus and sales commissions,~~experience by hiring additional employees to reduce the average call wait time for customers, as well as support our business growth in the U.S. and international expansion in Europe, and $1.8 million for a combination of higher ~~travel~~marketing expenses, ~~associated with increased headcount.~~

~~Nine months ended September 30, 2019~~professional services, advertising costs and ~~2018~~

~~Sales and marketing expense increased by 27% for the nine months ended September 30, 2019 as compared~~facilities costs to the same period in 2018. The increase was primarily due to higher expenses associated with the amortization of developed technology, patents and licensed technology acquired from SunPower, as well as an increase in personnel-related expenses as a result of our efforts to increase net revenues and enhance customer experience,enable business growth, partially offset by ~~lower bad debt expense. The increase~~$0.4 million reduction in ~~personnel-related expenses included higher employee compensation, including stock-based compensation, bonus~~travel expenditure as we implemented travel restrictions prohibiting all non-essential business travel and converting where possible our in-person sales, ~~commissions, as well as higher travel expenses associated with increased headcount.~~

~~General~~trainings and ~~Administrative~~

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
General and administrative $ 9,895
$ 7,510
$ 2,385
32 % $ 28,358
$ 21,423
$ 6,935
32 %

~~Three months ended September 30, 2019 and 2018~~

~~General and administrative expense increased 32% for the three months ended September 30, 2019, as compared~~marketing events to ~~the same period in 2018. The increase was primarily~~virtual-only due to an increase in personnel-related expenses and facility costs as a result of our business growth. The increase in personnel-related expenses included higher employee compensation, including stock-based compensation and bonus associated with increasing headcount.

~~Nine months ended September 30, 2019 and 2018~~

General and administrative expense increased 32% for the nine months ended September 30, 2019, as compared to the same period in 2018. The increase was primarily due to an increase in personnel-related expenses and facility costs as a result of our business growth, additional consulting and advisory fees due to our first year of being subject to auditor attestation requirements under the Sarbanes-Oxley Act of 2002 for our 2018 audited financial statements and higher legal fees for outside counsel, partially offset by $1.8 million paid to resolve a dispute with a supplier and acquisition-related costs of $0.8 million in 2018 that did not recur in 2019. The increase in personnel-related expenses included higher employee compensation, including stock-based compensation, bonus and benefit costs.COVID-19.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 2834

Table of Contents

~~Restructuring Charges~~Nine months ended September 30, 2020 and 2019

Sales and marketing expense increased by 49% or $12.8 million for the nine months ended September 30, 2020 as compared to the same period in 2019. The increase was primarily due to $9.9 million of higher personnel-related expenses as result of our efforts to improve customer experience by hiring additional employees to reduce the average call wait time for customers, as well as support our business growth in the U.S. and international expansion in Europe, and $3.3 million for a combination of higher marketing expenses, professional services, advertising costs and facilities costs to enable business growth, partially offset by $0.5 million reduction in travel expenditure as we implemented travel restrictions prohibiting all non-essential business travel and converting where possible our in-person sales, trainings and marketing events to virtual-only due to COVID-19.

General and Administrative

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
Restructuring charges $ 469
$ 2,588
$ (2,119 ) (82)% $ 1,468
$ 2,588
$ (1,120 ) (43)%



	Three Months Ended September 30,						Change in				Nine Months Ended September 30,						Change in
	2020			2019			$		%		2020			2019			$		%
	(In thousands, except percentages)
General and administrative	$	13,525		$	9,895		$	3,630	37	%	$	37,810		$	28,358		$	9,452	33	%
Percentage of net revenues	8		%	5		%					7		%	7		%

Three months ended September 30, ~~2019~~2020 and ~~2018~~2019

~~Restructuring~~General and administrative expense increased 37% or $3.6 million for the three months ended September 30, 2020, as compared to the same period in 2019. The increase was primarily due to $2.4 million of higher personnel-related expenses, $0.9 million of higher legal and professional services and $0.4 million of other corporate costs to support our business growth, partially offset by $0.1 million reduction in travel expenditures as we implemented travel restrictions prohibiting all non-essential business travel in response to COVID-19.

Nine months ended September 30, 2020 and 2019

General and administrative expense increased 33% or $9.5 million for the nine months ended September 30, 2020, as compared to the same period in 2019. The increase was primarily due to $7.9 million of higher personnel-related expenses, $1.0 million of higher legal and professional services and, $0.9 million of other operational and facilities costs to support our business growth, partially offset by $0.3 million reduction in travel expenditures as we implemented travel restrictions prohibiting all non-essential business travel in response to COVID-19.

Restructuring Charges



	Three Months Ended September 30,				Change in					Nine Months Ended September 30,				Change in
	2020		2019		$			%		2020		2019		$			%
	(In thousands, except percentages)
Restructuring charges	$	—	$	469	$	(469	)	(100	)%	$	—	$	1,468	$	(1,468	)	(100	)%

Three months ended September 30, 2020 and 2019

We completed our 2018 restructuring plan in 2019, hence we incurred no restructuring expenses during the three months ended September 30, 2020. Restructuring charges for three months ended September 30, 2019 primarily ~~includes~~included $0.5 million of one-time termination benefits and other employee-related expenses under our 2018 Plan. Restructuring expense for the three months ended September 30, 2018 primarily include a $1.6 million asset impairment charge, $0.6 million of one-time termination benefits and other employee-related expenses and a $0.3 million charge to establish a lease loss reserve.

Nine months ended September 30, 2020 and 2019

We completed our 2018 restructuring plan in 2019, ~~and 2018~~

hence we incurred no restructuring expenses during the nine months ended September 30, 2020. Restructuring expense for the nine months ended September 30, 2019 primarily ~~includes~~include $1.6 million of one-time termination benefits and other employee-related expenses under our 2018 Plan, partially offset by a $0.1 million reduction in lease loss reserves. Restructuring expense for the nine months ended September 30, 2018 primarily include a $1.6 million asset impairment charge, $0.6 million of one-time termination benefits and other employee-related expenses and a $0.3 million charge to establish a lease loss reserve.

~~We expect to complete our 2018 Plan in 2019. See Note 7, “Restructuring,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this~~

Enphase Energy, Inc. | 2020 Form 10-Q ~~for more information relating to the 2018 Plan.~~| 35

Table of Contents

Other Expense, Net



	Three Months Ended September 30,						Change in					Nine Months Ended September 30,						Change in
	2020			2019			$			%		2020			2019			$			%
	(In thousands, except percentages)
Interest income	$	110		$	894		$	(784	)	(88	)%	$	1,483		$	1,698		$	(215	)	(13	)%
Interest expense	(5,993		)	(2,286		)	(3,707		)	162	%	(15,100		)	(7,388		)	(7,712		)	104	%
Other expense, net	(1,031		)	(943		)	(88		)	9	%	(1,302		)	(6,904		)	5,602			(81	)%
Change in fair value of derivatives	—			—			—			**		$	(44,348	)	$	—		$	(44,348	)	**
Total other expense, net	$	(6,914	)	$	(2,335	)	$	(4,579	)	(196	)%	$	(59,267	)	$	(12,594	)	$	(46,673	)	(371	)%

Three Months Ended
September 30, Change in Nine Months Ended
September 30, Change in
2019 2018 $ % 2019 2018 $ %
(In thousands, except percentages)
Interest income $ 894
$ 321
$ 573
179 % $ 1,698
$ 568
$ 1,130
199 %
Interest expense (2,286 ) (2,790 ) 504
(18 )% (7,388 ) (7,599 ) 211
(3 )%
Other expense, net (943 ) (379 ) (564 ) 149 % (6,904 ) (1,077 ) (5,827 ) 541 %
Total other expense, net $ (2,335 ) $ (2,848 ) $ 513
18 % $ (12,594 ) $ (8,108 ) $ (4,486 ) (55 )%
** Not meaningful

Three months ended September 30, ~~2019~~2020 and ~~2018~~2019

Interest income of ~~$0.9~~$0.1 million for the three months ended September 30, ~~2019 increased,~~2020 decreased, as compared to ~~$0.3~~$0.9 million in the same period in ~~2018,~~2019, primarily due to significant decline in interest rates earned on acash balances, partially offset by higher average cash ~~balance.~~balance earning interest in the three months ended September 30, 2020 compared to the same period in 2019.

Interest expense of $6.0 million for the three months ended September 30, 2020 primarily includes $5.8 million related to the accretion of the debt discount, amortization of debt issuance cost and coupon interest incurred associated with our Notes due 2024 and Notes due 2025, interest expense of $0.1 million related to coupon interest incurred and amortization of debt issuance costs associated with our Notes due 2023 and $0.1 million of interest expense related to long-term financing receivable recorded as debt. Interest expense of $2.3 million for the three months ended September 30, 2019 primarily includes $2.0 million related to the accretion of the debt discount, amortization of debt issuance cost and coupon interest incurred associated with our Notes due 2024, $0.2 million of interest expense related to long-term financing receivable recorded as debt and interest expense of $0.1 million related to coupon interest incurred and amortization of debt issuance costs associated with our Notes due 2023. ~~Interest~~

Other expense, net of ~~$2.8~~$1.0 million for the three months ended September 30, ~~2018~~2020, relates to a net loss related to foreign currency exchange and remeasurement. Other expense, net of $0.9 million for the three months ended September 30, 2019, primarily relates to a net loss related to foreign currency exchange and remeasurement.

Nine months ended September 30, 2020 and 2019

Interest income of $1.5 million for the nine months ended September 30, 2020 decreased, as compared to $1.7 million in the same period in 2019, primarily due to significant decline in interest rates earned on cash balances, partially offset by a higher average cash balance earning interest in the nine months ended September 30, 2020 compared to the same period in 2019.

Interest expense of $15.1 million for the nine months ended September 30, 2020 primarily includes $14.5 million related to the accretion of the debt discount, amortization of debt issuance cost and coupon interest incurred associated with our Notes due 2024 and Notes due 2025, $0.4 million of interest expense related to long-term financing receivable recorded as debt and interest expense of ~~$2.4 million related to our Term Loans which were repaid in full on January 28, 2019 and $0.4~~$0.2 million related to coupon interest incurred and amortization of debt issuance costs associated with our Notes due 2023.

Other expense, net of $0.9 million for the three months ended September 30, 2019, relates to a net loss related to foreign currency exchange and remeasurement. Other expense, net of $0.4 million for the three months ended September 30, 2018, relates to a net loss related to foreign currency exchange and remeasurement.

~~Nine months ended September 30, 2019 and 2018~~

Interest income of $1.7 million the nine months ended September 30, 2019 increased, as compared to $0.6 million in the same period in 2018, primarily due to interest earned on a higher average cash balance.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 29

~~Table of Contents~~

Interest expense of $7.4 million for the nine months ended September 30, 2019 primarily includes $3.4 million related to the repayment of our ~~Term Loans, interest expense of $1.4 million related to coupon interest incurred and amortization of debt issuance costs associated with our Notes due 2023, and~~term loans, $2.6 million related to the accretion of the debt discount, amortization of debt issuance cost and coupon interest incurred associated with our Notes due ~~2024. Interest~~2024, and interest expense of ~~$7.6~~$1.4 million related to coupon interest incurred and amortization of debt issuance costs associated with our Notes due 2023.

Other expense, net of $1.3 million for the nine months ended September 30, ~~2018~~2020 primarily ~~includes interest expense~~relates to the net loss related to ~~our Term Loans.~~

foreign currency exchange and remeasurement. Other expense, net of $6.9 million for the nine months ended September 30, 2019 primarily relates to the $6.0 million fees paid for the repurchase and exchange of our Notes due 2023 and $0.9 million net loss related to foreign currency exchange and remeasurement. ~~Other expense, net~~

Change in fair value of derivatives of $44.3 million for the nine months ended September 30, ~~2018~~2020 primarily includes ~~a net loss related to foreign currency exchange~~the charge recognized for the change in fair value of our convertible notes embedded derivative and ~~remeasurement~~warrants

Enphase Energy, Inc. | 2020 Form 10-Q | 36

Table of ~~$1.3~~Contents

of $47.6 million and $24.7 million, respectively. This charge is partially offset by a gain recognized for the change in fair value of our convertible notes hedge of $28.0 million. See Note 8, “Debt,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q for additional information.

Income Tax Benefit (Provision)



	Three Months Ended September 30,						Change in				Nine Months Ended September 30,					Change in
	2020			2019			$			%	2020		2019			$		%
	(In thousands, except percentages)
Income tax benefit (provision)	$	(5,483	)	$	(272	)	$	(5,211	)	**	$	12,946	$	(1,211	)	$	14,157	**

** Not meaningful

Three months ended September 30, 2020 and 2019

The income tax provision of $5.5 million for the three months ended September 30, 2020, calculated using the annualized effective tax rate method, increased compared to the income tax provision of $0.3 million ~~change~~ in ~~purchase option fair value associated with our long-term financing receivable recorded~~2019, calculated using the discrete tax approach, which is due to higher projected tax expense in the U.S. and foreign jurisdictions that are profitable in 2020 compared to 2019, partially offset by increased tax deduction of stock based compensation.

Nine months ended September 30, 2020 and 2019

The income tax benefit of $12.9 million for the nine months ended September 30, 2020, calculated using the annualized effective tax rate method, increased compared to the income tax provision of $1.2 million in 2019, calculated using the discrete tax approach, which is due to tax deduction from employee stock compensation as ~~debt.~~a discrete event in the nine months ended September 30, 2020, partially offset by higher projected tax expense in the U.S. and foreign jurisdictions that are profitable in 2020 compared to 2019.

Liquidity and Capital Resources

Sources of Liquidity

As of September 30, ~~2019,~~2020, we had ~~$203.0~~$593.7 million in working capital, including cash and cash equivalents ~~and working capital~~ of ~~$244.7 million. Cash and cash equivalents~~$661.8 million, of which approximately $654.3 million were held in the U.S. ~~were $184.7 million~~Our cash and ~~consisted~~cash equivalents primarily consist of U.S. government money market mutual funds and both interest-bearing and non-interest-bearing ~~checking~~ deposits, with the remainder held in various foreign subsidiaries. We consider amounts held outside the U.S. to be accessible and have provided for the estimated U.S. income tax liability associated with our foreign earnings.

~~Term Loans~~

~~On January 28, 2019, we repaid in full~~ However, our liquidity may be negatively impacted if sales decline significantly for an extended period due to the ~~remaining principal amount~~impact of the ~~Term Loans of approximately $39.5 million plus accrued interest~~ongoing COVID-19 pandemic. While we have experienced delays in collections from certain customers due to COVID-19, we believe we will be able to meet our anticipated cash needs for at least the next 12 months. Further, the extent to which the ongoing COVID-19 pandemic and ~~fees owed to lenders affiliated with Tennenbaum Capital Partners, LLC.~~our precautionary measures in response thereto impact our business and liquidity will depend on future developments, which are highly uncertain and cannot be precisely predicted at this time.

Convertible Notes

Notes due 2023. ~~In August 2018,~~As of September 30, 2020, we ~~issued $65.0~~had $5.0 million aggregate principal amount of ~~convertible senior notes in a private placement (“~~our Notes due ~~2023”).~~2023 outstanding. The Notes due 2023 are general unsecured obligations and bear interest at a rate of ~~4.0%~~4.00% per year, payable semi-annually on February 1 and August 1 of each ~~year, beginning on February 1, 2019.~~year. The Notes due 2023 will mature on August 1, 2023, unless earlier repurchased by us or converted at the option of the holders. ~~On May 30, 2019, we entered into separately and privately negotiated transactions with certain holders of the~~

Notes due 2023 resulting in the repurchase and exchange, as of June 5, 2019, of $60.0 million aggregate principal amount of the notes in consideration for the issuance of 10,801,080 shares of common stock and separate cash payments totaling $6.0 million.2024. As of September 30, ~~2019,~~2020, we had ~~$5.0~~$132.0 million aggregate principal amount of our Notes due ~~2023~~2024 outstanding.

~~Notes due 2024. In June 2019, we issued $132.0 million aggregate principal amount of convertible senior notes in a private placement (“Notes due 2024”).~~ The Notes due 2024 are general unsecured obligations and bear interest at a rate of 1.0% per year, payable semi-annually on June 1 and December 1 of each ~~year, beginning on December 1, 2019.~~year. The Notes due 2024 will mature on June 1, 2024, unless earlier repurchased by us or converted at the option of the holders at a conversion price of $20.50 per share. As

Enphase Energy, Inc. | 2020 Form 10-Q | 37

Table of ~~September 30, 2019, we had $132.0 million aggregate principal amount of our Notes due 2024 outstanding.~~Contents

The Notes due 2024 may be converted on any day prior to the close of business on the business day immediately preceding December 1, 2023, in multiples of $1,000 principal amount, at the option of the holder only under any of the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on September 30, 2019 (and only during such calendar quarter), if the last reported sale price of the our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to $26.6513 (130% of the conversion price) on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the “trading price” (as defined in the relevant indenture) per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the our common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. Upon conversion of any of the notes, we will pay or deliver, as the case may be, cash, shares of common stock or a combination of cash and common stock, at our election.

~~Enphase Energy, Inc. | Q3 2019 Form 10-Q |~~ 30

~~Table~~From April 1, 2020 through December 31, 2020, the Notes due 2024 may be converted because the last reported sale price of ~~Contents~~

our common stock for at least 20 trading days during a period of 30 consecutive trading days ending on March 31, 2020, June 30, 2020 and September 30, 2020 was greater than or equal to $26.6513 on each applicable trading day. Upon conversion of any of the notes, we will pay or deliver, as the case may be, cash, shares of common stock or a combination of cash and common stock, at our election.

In connection with the offering of the Notes due 2024, we entered into privately-negotiated convertible note hedge transactions in order to reduce the potential dilution to our common stock upon any conversion of the Notes due 2024. Also, concurrently with the offering of the Notes due 2024, we entered into privately-negotiated warrant transactions whereby we issued warrants to effectively increase the overall conversion price of Notes due 2024 from $20.5010 to $25.2320.

As of October 27, 2020, we’ve received the request for conversion of approximately $5.4 million in principal amount of Notes due 2024, of which we have elected to settle the aggregate principal amount of the Notes due 2024 in a combination of cash and any excess in shares of our common stock in accordance with the applicable indenture. Such conversion will be settled in December 2020. We may purchase shares under the convertible note hedge to the extent shares of our common stock are issued for the additional conversion amount due over the principal amount. As of October 27, 2020, we had not purchased any shares under the convertible note hedge and the warrants had not been exercised and remain outstanding. If we receive additional request for conversion from the holders of the Notes due 2024 to exercise their right to convert the debt to equity we have asserted our intent and ability to settle the $132.0 million aggregate principal amount of the Notes due 2024 in cash.

Notes due 2025. As of September 30, 2020, we had $320.0 million aggregate principal amount of our Notes due 2025 outstanding. The Notes due 2025 are general unsecured obligations and bear interest at a rate of 0.25% per year, payable semi-annually on March 1 and September 1 of each year, beginning on September 1, 2020. The Notes due 2025 will mature on March 1, 2025, unless earlier repurchased by us or converted at the option of the holders at a conversion price of $81.54 per share.

The Notes due 2025 may be converted on any day prior to the close of business on the business day immediately preceding September 1, 2024, in multiples of $1,000 principal amount, at the option of the holder only under any of the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2020 (and only during such calendar quarter), if the last reported sale price of the our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to $81.5400 (130% of the conversion price) on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the “trading price” (as defined in the relevant indenture) per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the our common stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On and after September 1, 2024 until the close of business on the second scheduled trading day immediately preceding the maturity date of March 1, 2025, holders may convert their notes at any time, regardless of the foregoing circumstances. Upon the occurrence of a fundamental change (as defined in the relevant indenture), holders may require the Company to repurchase all or a portion of their Notes due 2025 for cash at a price equal to 100% of the principal amount of the notes to be repurchased plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

Enphase Energy, Inc. | 2020 Form 10-Q | 38

Table of Contents

In connection with the offering of the Notes due 2025, we entered into privately-negotiated convertible note hedge transactions in order to reduce the potential dilution to our common stock upon any conversion of the Notes due 2025. The total cost of the convertible note hedge transactions was approximately ~~$36.3~~$89.1 million. Also, concurrently with the offering of the Notes due ~~2024,~~2025, we entered into privately-negotiated warrant transactions whereby we issued warrants to acquire shares of our common stock at a strike price of ~~$25.2320~~$106.9400 rather than the Notes due ~~2024~~2025 conversion price of ~~$20.5010.~~$81.5400. We received approximately ~~$29.8~~$71.6 million from the sale of the warrants.

As of October ~~29, 2019, the holders of~~27, 2020, the Notes due ~~2024~~2025 were ~~unable to convert the debt into equity,~~not convertible, therefore, we had not purchased any shares under the convertible note hedge and the warrants had not been exercised and remain outstanding. If holders of the Notes due ~~2024~~2025 are able to convert the debt to equity, and exercise that right, we have asserted our intent and ability to settle the ~~$132.0~~$320.0 million aggregate principal amount of the Notes due ~~2024~~2025 in cash. See Note 8, “Debt,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q for more information relating to the convertible note hedge transactions and warrants.

Cash from operations could be affected by various risks and uncertainties, including, but not limited to, the effects of COVID-19 and other risks detailed in Part II, Item 1A “Risk Factors” of this Quarterly Report on Form 10-Q, as well as in the “Risk Factors” section in our 2019 Annual Report on Form 10-K. We believe that our cash flow from operations with existing cash and cash equivalents ~~and cash flows from our operating activities~~ will be sufficient to meet our anticipated cash needs for at least the next 12 ~~months.~~months and thereafter for the foreseeable future. Our future capital requirements will depend on many factors including our growth rate, the timing and extent of spending to support development efforts, the expansion of sales and marketing activities, the introduction of new and enhanced products, the costs to acquire or invest in complementary businesses and technologies, the costs to ensure access to adequate manufacturing capacity, the continuing market acceptance of our products and macroeconomic events such as the impacts from COVID-19. We may also choose to seek additional equity or debt financing. In the event that additional financing is required from outside sources, we may not be able to raise it on terms acceptable to us or at all. If we are unable to raise additional capital when desired, our business, operating results, and financial condition may be adversely affected.

Cash Flows. The following table summarizes our cash flows for the periods presented:


	Nine Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2020			2019
	(In thousands)						(In thousands)
Net cash provided by operating activities	$	36,796		$	14,257		$	132,154		$	36,796
Net cash used in investing activities	(7,368		)	(11,384		)	(11,707		)	(7,368		)
Net cash provided by financing activities	67,816			84,610			245,313			67,816
Effect of exchange rate changes on cash							(77		)	(435		)
Net increase in cash and cash equivalents							$	365,683		$	96,809

Cash Flows from Operating Activities

For the nine months ended September 30, ~~2019,~~2020, net cash provided by operating activities was $132.2 million compared to net cash provided by operating activities of $36.8 million ~~was primarily attributable to net income~~in the same period 2019, an increase of ~~$44.5~~$95.4 million non-cash charges of $30.1 million, and a one-time charge of $6.0 million and $2.2 million related to inducement costs paid on conversion of $60.0 million aggregate principal amount of the Notes due 2023 and settlement of our Term Loans, respectively, partially offset by cash outflow from operating assets and liabilities of $46.0 million. Non-cash charges of $30.1 million includes $14.0 million of stock-based compensation, $11.6 million of depreciation and amortization, $4.2 million of non-cash interest expense and a $0.4 million of provision for doubtful accounts. The primary driver of cash outflows from changes in operating assets and liabilities was a $56.1year-over-year. This $95.4 million increase in ~~accounts receivable due to higher sales, a $14.0 million~~net cash provided by operating activities is primarily driven by an increase in ~~inventory due~~our net revenues of $95.3 million and an increase in our gross profit of $80.7 million, of which $23.0 million relates to ~~continued improvement in the management of our supply chain to~~approved refunds for tariffs previously paid on certain microinverter products that meet the ~~higher demand~~definition of the Tariff Exclusion, and of that $23.0 million approved, $16.0 million was received and $7.0 million was accrued as a ~~$8.6 million increase in prepaid expense and other assets due to subscription renewals and other receivables, which were partially offset by a $18.7 million increase~~reduction in accounts payable, ~~due~~thus contributing to ~~both successful negotiations~~$16.5 million of ~~our vendor payment terms as well as the timing of vendor payments, a $10.8 million increase in deferred revenues and a $3.3 million increase in warranty obligations.~~

~~For~~higher cash flows generated during the nine months ended September 30, ~~2018,~~2020 as compared to the same period in 2019, adjusted for $52.3 million higher net non-cash charges and $26.5 million decrease in cash ~~provided by operating activities~~used in changes from working capital. Non-cash charges include change in the fair value of ~~$14.3~~derivatives, deferred income tax, stock-based compensation, amortization of debt discount, and depreciation and amortization.

The $26.5 million decrease in cash used in changes from working capital for the nine months ended September 30, 2020, compared to the same period in 2019, was primarily ~~attributable~~due to ~~a net loss~~collections of ~~$12.3~~$79.7 million of accounts receivable and $8.5 million decrease in inventory, partially offset by ~~non-cash charges~~$35.3 million decrease in deferred revenue as we delivered safe harbor orders that were prepaid in the fourth quarter of ~~$21.0 million~~2019 and net cash inflows from changes in operating assets and liabilities of $5.6 million. Non-cash charges included $9.9 million of stock-based compensation, $7.0 million of depreciation and amortization, $1.9 million of non-cash interest expense, $1.6 million asset impairment and a $0.7 million provision for doubtful accounts. The primary drivers of cash inflows from changes in operating assets and liabilities were a $10.7$27.9 million decrease in accounts ~~receivable~~payable due to ~~the impact~~pay off of cash management efforts as well as the timing of revenue, an $8.1 million decrease in inventory due to a combination of supply chain management efforts and the impact of component shortages, $4.7 million increase in accounts payable as a result of lower inventory levels and the timing of vendor payments, and a $2.4 million increase in warranty obligations, partially offset by a $10.3 million decrease in deferred revenues (“contract liabilities”) due to the timing of revenue recognition under Accounting Standards Codification (“ASC”) Topic 606 (“ASC 606”), $6.0 million increase in intangible assets related to the acquisition of SunPower’s microinverter business and a $4.0 million increase in prepaid expenses and other assets (“contract assets”).liabilities.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 3139

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Cash Flows from Investing Activities

For the nine months ended September 30, 2020, net cash used in investing activities was $11.7 million, primarily from purchases of test and assembly equipment to expand our supply capacity, related facility improvements and information technology enhancements, and capitalized costs related to internal-use software.

For the nine months ended September 30, 2019, net cash used in investing activities of $7.4 million ~~was~~ primarily resulted from purchases of test and assembly equipment to expand our supply capacity and related facility improvements, and capitalized costs related to internal-use software.

Cash Flows from Financing Activities

For the nine months ended September 30, ~~2018,~~2020, net cash ~~used in investing~~provided by financing activities of ~~$11.4~~$245.3 million was primarily ~~resulted~~ from ~~a $9.0~~$312.4 million net proceeds from the issuance of our Notes due 2025, $71.6 million from sale of warrants related to our Notes due 2025, $4.7 million net proceeds from employee stock option exercises and issuance of common stock under our employee stock incentive program, partially offset by $89.1 million purchase of convertible note bond hedge related to our Notes due 2025, $52.0 million payment of employee withholding taxes related to ~~the acquisition~~net share settlement of ~~SunPower’s microinverter business~~equity awards and ~~$2.4~~$2.3 million ~~for purchases~~ of ~~test and assembly equipment to expand our supply capacity and capitalized costs related to internal-use software.~~

C~~ash Flows from Financing Activities~~repayment on sale of long-term financing receivables.

For the nine months ended September 30, 2019, net cash provided by financing activities of $67.8 million was primarily from net proceeds of $127.5 million received from the issuance of our Notes due 2024, $29.8 million from sale of warrants, as well as $2.9 million net proceeds from issuance of common stock under our employee stock incentive program. These proceeds were partially offset by $45.7 million for principal payments on debts and financing fees associated with repayment of our term loan, $36.3 million for purchase of bond hedges related to our Notes due 2024, $6.0 million attributable to inducement costs incurred for repurchase of our Notes due 2023 and $4.4 million for the payment of taxes related to net share settlement of equity awards.

For the nine months ended September 30, 2018, net cash provided by financing activities of $84.6 million consisted of $62.4 million from issuance of convertible debt, $19.8 million in net proceeds from sales of common stock and $5.6 million in net proceeds from the sale of certain long-term financing receivables and $2.2 million proceeds from issuance of common stock under our employee stock plans, partially offset by a $5.7 million principal payment on our term loan.

Contractual Obligations

~~The following~~Our contractual obligations primarily consist of our Notes due 2025, Notes due 2024, Notes due 2023, obligations under operating leases and inventory component purchase. As of September 30, 2020, except as shown in the table ~~summarizes~~below, there have been no material changes from our ~~outstanding contractual~~disclosure in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019. For more information on our future minimum operating leases and inventory component purchase obligations as of September 30, ~~2019.~~

Payments Due by Period
Total 2019 (remaining three months) 2020-2021 2022-2023 Beyond 2023
(In thousands)
Operating leases $ 13,335
$ 731
$ 6,700
$ 4,475
$ 1,429
Notes due 2023 principal and interest 5,800
—
400
5,400
—
Notes due 2024 principal and interest 138,600
642
2,640
2,640
132,678
Purchase obligations ⁽¹⁾
71,048
71,048
—
—
—
Total $ 228,783
$ 72,421
$ 9,740
$ 12,515
$ 134,107

~~(1)~~

Purchase obligations include amounts related to component inventory that our primary contract manufacturer procures on our behalf in accordance with our production forecast as well as other inventory related purchase commitments. The timing of purchases in future periods could differ materially from estimates presented above due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.

~~On January 28, 2019, we repaid in full the remaining principal amount of the Term Loans of approximately $39.5 million plus accrued interest~~2020, see Note 9, Operating Leases section and ~~fees owed to lenders affiliated with Tennenbaum Capital Partners, LLC.~~

~~On May 30, 2019, we entered into separately~~Purchase Obligations section under “Commitments and privately negotiated transactions with certain holders of our Notes due 2023 resulting in the repurchase and exchange, as of June 5, 2019, of $60.0 million aggregate principal amount of the notes in consideration for the issuance of 10,801,080 shares of common stock and separate cash payments totaling $6.0 million. As of September 30, 2019, $5.0 million aggregate principal amount of our Notes due 2023 were outstanding. See Note 8, “Debt,”Contingencies”, of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form ~~10-Q for more information relating to~~10-Q.

In March 2020, we issued the Notes due ~~2023.~~2025 and in October 2020, we received a request for conversion of approximately $5.4 million in principal amount of Notes due 2024. The following table updates our contractual obligations as of September 30, 2020 associated with the Notes due 2025 and Notes due 2024. For more information on our Notes due 2025 and Notes due 2024, see Note 8, “Debt” of the notes to condensed consolidated financial statements included in Part 1 of this Form 10-Q.



	Payments Due by Period
	Total		2020 (remaining three months) (1)		2021-2022		2023-2024		Beyond 2024
	(In thousands)
Notes due 2024 principal and interest	137,112		6,020		2,535		128,557		—
Notes due 2025 principal and interest	323,602		—		1,600		1,600		320,402
Total	$	460,714	$	6,020	$	4,135	$	130,157	$	320,402


(1)	Includes approximately $5.4 million in principal amount of Notes due 2024, of which we have elected to settle the aggregate principal amount of the Notes due 2024 in a combination of cash and any excess in shares of our common stock in accordance with the applicable indenture. Such conversion will be settled in December 2020 after the $0.6 million interest due on December 1, 2020.

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On June 5, 2019, we issued $132.0 million aggregate principal amount of Notes due 2024 in a private placement. The Notes due 2024 are general unsecured obligations and bear interest at a rate of 1.0% per year, payable semi-annually on June 1 and December 1 of each year, beginning on December 1, 2019. The Notes due 2024 will mature on June 1, 2024, unless earlier repurchased by us or converted at the option of the holders. As of September 30, 2019, $132.0 million aggregate principal amount of our Notes due 2024 were outstanding. See Note 8, “Debt,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q for more information relating to the Notes due 2024.

Off-Balance Sheet Arrangements

As of September 30, ~~2019,~~2020, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K.

Critical Accounting Policies

Our condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the U.S., or GAAP. In connection with the preparation of our condensed consolidated financial statements, we are required to make assumptions and estimates about future events and apply judgments that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. We base our assumptions, estimates and judgments on historical experience, current trends and other factors that management believes to be relevant at the time our condensed consolidated financial statements are prepared. On a regular basis, we review the accounting policies, assumptions, estimates and judgments to ensure that our condensed consolidated financial statements are presented fairly and in accordance with GAAP. However, because future events and their effects cannot be determined with certainty, actual results could differ from our assumptions and estimates. To the extent that there are material differences between these estimates and actual results, our future financial statement presentation, financial condition, results of operations and cash flows will be affected.

The worldwide spread of the COVID-19 virus has resulted in a global slowdown of economic activity which decreased demand for a broad variety of goods and services, including from our customers, while also disrupting sales channels and marketing activities for an unknown period of time and may continue to create significant uncertainty in future operational and financial performance. This had a negative impact on our sales and our results of operations for the second quarter of 2020 and we expect this to continue to have a negative impact on our sales and our results of operations for the remainder of 2020. In preparing our condensed consolidated financial statements in accordance with GAAP, we are required to make estimates, assumptions and judgments that affect the amounts reported in our financial statements and the accompanying disclosures. Estimates and assumptions about future events and their effects cannot be determined with certainty and therefore require the exercise of judgment. As of the date of issuance of these financial statements, we are not aware of any specific event or circumstance that would require us to update our estimates, judgments or revise the carrying value of our assets or liabilities. These estimates may change, as new events occur and additional information is obtained, and are recognized in the condensed consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to our financial statements.

We consider an accounting policy to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, and if different estimates that reasonably could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact the condensed consolidated financial statements.

Adoption of New and Recently Issued Accounting Pronouncements

Refer to Note 1. “Summary of Significant Accounting Policies” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q for a discussion of adoption of new and recently issued accounting pronouncements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

For quantitative and qualitative disclosures about market risk, see Item 7A, “Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10‑K for the fiscal year ended December 31, ~~2018.~~2019. Our exposures to market risk have not changed materially since December 31, ~~2018.~~2019, except as described below.

Market Risk

On March 9, 2020, we issued $320 million aggregate principal amount of our Notes due 2025, and entered into privately-negotiated convertible note hedge and warrant transactions, which in combination are intended to reduce the potential dilution from the conversion of the Notes due 2025 and to effectively increase the overall conversion price from $81.54 to $106.94 per share. For the period from March 9, 2020 through May 19, 2020, the Notes due 2025, convertible note hedge and warrant transactions could only be settled in cash because the number of authorized and unissued shares of our common stock that was not reserved for other purposes was less than the maximum number of underlying shares that would be required to settle the Notes due 2025, convertible note hedge and warrants

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transactions. As such, the embedded conversion option associated with the Notes due 2025, convertible notes hedge and warrants liability met the criteria for derivative accounting, and as a result, derivative financial instruments were marked-to-market at each reporting period. The volatile market conditions arising from the COVID-19 pandemic resulted in significant changes in the price of our common stock in the first half of 2020, causing variability in the fair value of these derivative financial instruments, and materially affecting our condensed consolidated statement of operations three and nine months ended September 30, 2020. Change in fair value of derivatives of $44.3 million for the nine months ended September 30, 2020 includes the charge recognized for the change in fair value of our convertible notes embedded derivative and warrants of $47.6 million and $24.7 million, respectively. This charge is partially offset by a gain recognized for the change in fair value of our convertible notes hedge of $28.0 million.

On May 20, 2020, we received approval at our annual meeting of stockholders to increase the authorized shares of our common stock, par value $0.00001 per share, from 150,000,000 shares to 200,000,000 shares. As discussed further in Note 8, “Debt,” of the notes to condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q, we reclassified the remeasured fair value of embedded derivative, warrants and convertible notes hedge to additional paid-in-capital in the condensed consolidated balance in the second quarter of 2020. As a result of this reclassification, embedded derivative, warrants and convertible notes hedge are no longer marked to fair value at each reporting period.

Credit Risk

Financial instruments that subject us to concentrations of credit risk consist primarily of cash and cash equivalents, accounts receivable, and derivative financial instruments. We maintain a substantial portion of our cash balances in non-interest-bearing and interest-bearing deposits and money market accounts. The derivative financial instruments expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the arrangement. We mitigate this credit risk by transacting with major financial institutions with high credit ratings. We are not required to pledge, and are not entitled to receive, cash collateral related to these derivative instruments. We do not enter into derivative contracts for trading or speculative purposes. Our net revenues are primarily concentrated among a limited number of customers. We monitor the financial condition of our customers and perform credit evaluations whenever considered necessary and maintain an allowance for doubtful accounts for estimated potential credit losses.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of September 30, ~~2019.~~2020. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, includes, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Based on the evaluation of our disclosure controls and procedures as of September 30, ~~2019,~~2020, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Changes in Internal Control

There were no changes in our internal control over financial reporting identified in management’s evaluation pursuant to Rules 13a-15(d) or 15d-15(d) of the Exchange Act during the period covered by this Quarterly Report that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. We have not experienced any material impact to our internal controls over financial reporting despite the fact that most of our employees are continuing to work remotely due to the COVID-19 pandemic. We continue to monitor and assess the impact of the ongoing COVID-19 pandemic on our internal controls to minimize the impact on their design and operating effectiveness.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we ~~may~~might be ~~involved in litigation~~subject to various legal proceedings relating to claims arising out of our operations. WeThe outcome of litigation is inherently uncertain. If one or more legal matters were resolved against us in a reporting period for amounts above management’s expectations, our business, results of operations, financial position and cash flows for that reporting period could be materially adversely affected. Except as described in this Item 1, we are not currently involved in any material legal proceedings, ~~and our management believes there are currently no claims or actions pending against us,~~ the ultimate disposition of which could have a material adverse effect on our operations, financial condition, or cash flows. ~~We may, however, be involved in material legal proceedings~~

Class Action Suit

On or about June 17, 2020, Gregory A. Hurst (“Plaintiff”) filed a securities class action lawsuit against our company, our chief executive officer and our chief financial officer (collectively, the "Defendants") in the ~~future. Such matters~~United States District Court for the Northern District of California on behalf of a class consisting of those individuals who purchased or otherwise acquired our common stock between February 26, 2019 and June 17, 2020. The complaint alleges that the Defendants made false and/or misleading statements in violation of Sections 10(b) and 20(a) of the Exchange Act of 1934 and Rule 10b-5 promulgated thereunder. Plaintiff does not quantify any alleged damages in his complaint but, in addition to attorneys' fees and costs, he seeks to recover damages on behalf of himself and other persons who purchased or otherwise acquired our stock during the putative class period at allegedly inflated prices and purportedly suffered financial harm as a result. We dispute all allegations, intend to defend the matter vigorously and believe the claims are without merit.

Derivative Action Suit

On or about July 10, 2020, Yan Shen filed a shareholder derivative action lawsuit against Badrinarayanan Kothandaraman, Eric Branderiz, Mandy Yang, Steven J. Gomo, Benjamin Kortlang, Richard Mora, Thurman J. Rodgers, and Enphase Energy, Inc. (nominal defendant) alleging breaches of fiduciary duties, unjust enrichment, abuse of control, gross mismanagement, waste, and violations of Section 14(a) under the Exchange Act of 1934. The plaintiff does not quantify any alleged damages in the complaint, but in addition to attorneys’ fees and costs, seeks a proposal to strengthen the Board’s supervision of operations and shareholder input into the policies and guidelines of the Board; to permit our shareholders to nominate at least three candidates for election to the Board; and to ensure the establishment of effective oversight of compliance with applicable laws, rules, and regulations; and restitution from the individual defendants. On September 24, 2020, the court entered an order staying the derivative action until all motions to dismiss the securities class action are decided. We dispute all allegations, intend to defend the matter vigorously and believe the claims are without merit.

Books and Records Suit

On or about September 15, 2020, Stanley Olochwoszcz filed a lawsuit against our company in the Court of Chancery of the State of Delaware pursuant to Section 220 of the Delaware Code, 8 Del. C. § 220, to compel inspection of our books and records. The complaint alleges that our company has wrongfully refused to produce documents in response to Olochwoszcz’s demand and seeks a court order compelling us to permit inspection and copying of certain of our books and records, as well as costs and expenses, including attorneys’ fees, related to the lawsuit. We have also received demands for inspection of our books and records from four purported shareholders, including Mr. Olochwoszcz.

The pending lawsuits and any other related lawsuits are subject to ~~uncertainty~~inherent uncertainties, and ~~there can~~the actual defense and disposition costs will depend upon many unknown factors. The outcome of the pending lawsuits and any other related lawsuits is necessarily uncertain. We could be ~~no assurance that~~forced to expend significant resources in the defense of the pending lawsuits and any additional lawsuits, and we may not prevail. In addition, we may incur substantial legal fees and costs in connection with such ~~legal proceedings will not have a material adverse effect on our business, results of operations, financial position or cash flows.~~lawsuits.

Item 1A. Risk Factors

Other than risk factors described below, there has been no material changes in our risk factors from those disclosed in Part I, Item 1A, in our Annual Report on Form 10‑K for the fiscal year ended December 31, ~~2018.~~2019.

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The ongoing COVID-19 pandemic, as well as other actual or threatened epidemics, pandemics, outbreaks, or public health crises, may adversely affect our customers’ financial condition and our business.

The COVID-19 pandemic continues to have worldwide impact resulting in a global slowdown of economic activity which has decreased demand for a broad variety of goods and services, including from our customers, while also disrupting sales channels and marketing activities for an unknown period of time until the disease is contained. This has had a negative impact on our sales and our results of operations. We are currently unable to predict the size and duration of the pandemic’s impact on our future performance.

Among other impacts, the COVID-19 pandemic and associated governmental orders have slowed, and could continue to slow the rate of solar installations, reduce demand for our products and cause temporary or long-term disruptions in our supply chains and/or delays in the delivery of our inventory. Further, such risks could also adversely affect our customers' financial condition, resulting in reduced spending for the solar products we sell. Moreover, COVID-19 and associated governmental orders could require or cause employees to avoid our properties, which could adversely affect our ability to adequately staff and manage our businesses. “Shelter-in-place” or other such orders by governmental entities could also disrupt our operations, if employees who cannot perform their responsibilities from home, are not able to report to work. Risks related to COVID-19 has also led to the complete or partial closure of one or more of our facilities or operations, as well as those of our customers, suppliers, vendors or other partners.

The ultimate extent of the impact of COVID-19 on our business, financial condition and results of operations will depend on future developments, including those that are highly uncertain and cannot be predicted with confidence at this time, including ultimate duration of the pandemic, travel restrictions, quarantines, social distancing and business closure requirements in the U.S. and other countries, and the effectiveness of actions taken globally to contain and treat the disease. These and other potential impacts of COVID-19 could therefore materially and adversely affect our business, financial condition and results of operations.

To the extent the COVID-19 pandemic adversely affects our business and financial results, it may also have the effect of heightening many of the other risks described in this ‘‘Risk Factors’’ section as well as our risk factors disclosed in our Annual Report on Form 10‑K for the fiscal year ended December 31, 2019, such as reduced spending for solar energy systems, fluctuations in customer demand, and manufacturing and supply constraints.

The foregoing risks will also likely apply to any other future epidemic, pandemic, outbreak or other public health crisis.

Our business is affected by worldwide economic and market conditions; an unstable economy, a decline in consumer-spending levels and other adverse developments, including inflation, could lead to reduced revenues and gross margins and adversely affect our business, results of operations and liquidity.

Many economic and other factors are outside of our control, including general economic and market conditions, consumer and commercial credit availability, inflation, unemployment, consumer debt levels and other challenges affecting the global economy including the COVID-19 pandemic. Increases in the rates of unemployment, decreases in home values, decrease in new home construction, reduced access to credit and issues related to the domestic and international political situations may adversely affect consumer confidence and disposable income levels. Societal responses to the COVID-19 pandemic have involved business closures and limited social interaction as well as work reductions. Low consumer confidence and disposable incomes could lead to reduced consumer spending and lower demand for our products, which are discretionary items, the purchase of which can be reduced before customers adjust their budgets for necessities. These factors could have a negative impact on our sales and cause us to increase inventory markdowns and promotional expenses, thereby reducing our gross margins and operating results.

If demand for solar energy solutions decreases as a result of the consequences of the COVID-19 pandemic, our business will suffer.

Our success depends on continued demand for solar energy solutions and the ability of solar equipment vendors to meet this demand. As a consequence of the COVID-19 pandemic, the demand for solar energy solutions decreased in the second and third quarters of 2020 compared to prior year and may continue to decrease, or at least not continue its growth from recent years, as a result of government orders associated with COVID-19, due to adverse worldwide economic and market conditions, or other factors. If demand for solar energy solutions decreases or does not grow, demand for our customers’ products as well as demand for our products will decrease, which would have an adverse impact on our ability to increase our revenue and grow our business.

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Natural disasters, public health events, significant disruptions of information technology systems, data security breaches, or other catastrophic events could adversely affect our operations.

Our worldwide operations could be subject to natural disasters, public health events and other business disruptions, which could harm our future revenue and financial condition and increase our costs and expenses. For example, our corporate headquarters in Fremont, California is located near major earthquake fault lines and our Petaluma, California facility is near fault lines and the sites of recent catastrophic wildfires. We rely on third-party manufacturing facilities including for all product assembly and final testing of our products, which are performed at third-party manufacturing facilities, in China and Mexico. There may be conflict or uncertainty in the countries in which we operate, including public health issues (for example, the ongoing COVID-19 pandemic or an outbreak of other contagious diseases or health epidemics), safety issues, natural disasters, fire, disruptions of service from utilities, nuclear power plant accidents or general economic or political factors. Such risks could result in an increase in the cost of components, production delays, general business interruptions, delays from difficulties in obtaining export licenses for certain technology, tariffs and other barriers and restrictions, longer payment cycles, increased taxes, restrictions on the repatriation of funds and the burdens of complying with a variety of foreign laws, any of which could ultimately have a material adverse effect on our business.

Further, any terrorist attacks, material disruption to our information technology systems or any data security breaches, including due to cyber-attacks, especially any aimed at energy or communications infrastructure suppliers or our cloud-based monitoring service, could hinder or delay the development and sale or performance of our products or otherwise adverse affect us. Such significant disruptions of our, our third party vendors’ and/or business partners’ information technology systems or data security breaches, including in our remote work environment as a result of COVID-19, could adversely affect our business operations and/or result in the loss, misappropriation, and/or unauthorized access, use or disclosure of, or the prevention of access to, confidential information (including trade secrets or other intellectual property, proprietary business information and personal information), and could result in financial, legal, business and reputational harm to us. Any such event that leads to unauthorized access, use or disclosure of personal information, including personal information regarding our customers, could harm our reputation, compel us to comply with federal and/or state breach notification laws and foreign law equivalents, subject us to mandatory corrective action, require us to verify the correctness of database contents and otherwise subject us to liability under laws and regulations that protect the privacy and security of personal information, which could disrupt our business, result in increased costs or loss of revenue, and/or result in legal and financial exposure. In addition, security breaches and other inappropriate access can be difficult to detect, and any delay in identifying them may further harm us. Moreover, the prevalent use of mobile devices to access confidential information increases the risk of security breaches. While we have implemented security measures to protect our information technology systems and infrastructure, there can be no assurance that such measures will prevent service interruptions or security breaches that could adversely affect our business. In addition, failure to maintain effective internal accounting controls related to security breaches and cybersecurity in general could impact our ability to produce timely and accurate financial statements and subject us to regulatory scrutiny.

In the event that natural disasters, public health epidemics or technical catastrophes were to damage or destroy any part of our facilities or those of our contract manufacturer, destroy or disrupt vital infrastructure systems or interrupt our operations or services for any extended period of time, our business, financial condition and results of operations would be materially and adversely affected.

Conversion of ourConvertible Notesmay dilute the ownership interest of existing stockholders or may otherwise depress the price of our common stock.

In ~~August 2018,~~March 2020, we issued and sold a total of ~~$65.0~~$320.0 million aggregate principal amount of our convertible senior notes due 2023 (the “Notes due 2023”) in a private placement to qualified institutional buyers and an affiliate of the Company. In May 2019, we entered into separately and privately negotiated transactions with certain holders of the Notes due 2023 resulting in the repurchase and exchange of $60.0 million aggregate principal amount of the notes in consideration for the issuance of shares of common stock and separate cash payments. As of September 30, 2019, $5.0 million aggregate principal amount of the Notes due 2023 are outstanding.2025.

In June 2019, we issued and sold a total of $132.0 million aggregate principal amount of our ~~convertible senior notes~~Notes due ~~2024 (the “Notes due 2024” and together with~~2024.

As of September 30, 2020,

$5.0 million aggregate principal amount of the Notes due 2023 were outstanding;

$132.0 million aggregate principal amount of the Notes due 2024 were outstanding; and

$320.0 million aggregate principal amount of the Notes due 2025 were outstanding (the foregoing, collectively, the “Convertible Notes”).

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The conversion of some or all of the Convertible Notes may dilute the ownership interests of existing stockholders. Any sales in the public market of the common stock issuable upon such conversion could adversely affect prevailing market prices of our common stock. In addition, the existence of the Convertible Notes may encourage short selling by market participants because the conversion of the Convertible Notes could be used to satisfy short positions. In addition, the anticipated conversion of the Convertible Notes into shares of our common stock could depress the price of our common stock.

Servicing our debts requires a significant amount of cash, and we may not have sufficient cash flow from our business to pay our debts.

Our ability to make scheduled payments of the principal of, to pay interest on or to refinance our indebtedness, including the Convertible Notes, depends on our future performance, which is subject to economic, financial, competitive and other factors beyond our control. Our business may not continue to generate cash flow from operations in the future sufficient to service our debts, including the Convertible Notes, and make necessary capital expenditures. If we are unable to generate cash flow, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive. Our ability to refinance our indebtedness, including the Convertible Notes, will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of those activities or engage in these activities on desirable terms, which could result in a default on our debt obligations, including our obligations under the Convertible Notes.

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We may not have the ability to raise the funds necessary to repurchase theConvertible Notesupon a fundamental change or to repay the Notes due 2025, Notes due ~~2023~~2024 and the ~~and the~~ Notes due ~~2024~~2023 at maturity.

Holders of our Convertible Notes ~~due 2023~~ will have the right to require us to repurchase all or a portion of their convertible notes upon the occurrence of a fundamental change at 100% of the principal amount of the Notes due 2025, Notes due 2024 and Notes due 2023, plus accrued and unpaid interest. Fundamental change is defined in each of the Convertible Notes ~~due 2023~~ Indenture entered into in connection with the Notes due 2023 financing and consists of events such as an acquisition of a majority of our outstanding common stock, an acquisition of our company or substantially all of our assets, the approval by our stockholders of a plan of liquidation or dissolution, or our common stock no longer being listed on the Nasdaq Global Select Market or the Nasdaq Global Market. Moreover, we will be required to repay the Notes due 2023 in cash at their maturity, unless earlier converted or repurchased. However, we may not have enough available cash or be able to obtain financing at the time we are required to make repurchases of the Notes due 2023 surrendered or repay the Notes due 2023 at maturity.

Similarly, holders of our Notes due 2024 will have the right to require us to repurchase all or a portion of their convertible notes upon the occurrence of a fundamental change at 100% of the principal amount of the Notes due 2024, plus accrued and unpaid interest. Fundamental change is defined in the Notes due 2024 Indenture entered into in connection with the Notes due 2024 financing and consists of events such as an acquisition of a majority of our outstanding common stock, an acquisition of our company or substantially all of our assets, the approval by our stockholders of a plan of liquidation or dissolution, or our common stock no longer being listed on the Nasdaq Global Select Market or the Nasdaq Global Market. We may not have enough available cash or be able to obtain financing at the time we are required to make such repurchase of the ~~Notes due 2024.~~Convertible Notes.

Our ability to raise additional capital may also be adversely impacted by potential worsening global economic conditions and potential future disruptions to, and volatility in, the credit and financial markets in the U.S. and worldwide resulting from the ongoing COVID-19 pandemic. If we do not have enough available cash at the time we are required to make the required repurchases of the Convertible Notes, we may be required to undertake one or more actions, such as selling assets, attempting to restructure the Convertible Notes or other debt, or obtaining additional capital on terms that may be onerous or highly dilutive. Any such actions could have a material adverse effect on our business, financial condition or results of operations.

The convertible note hedge and warrant transactions and/or their early termination may affect the value of our common stock.

In connection with the offering of the Notes due 2025 and Notes due 2024, we entered into privately negotiated convertible note hedge transactions pursuant to which we have the option to purchase approximately the same number of shares of our common stock initially issuable upon conversion of the Notes due 2025 and Notes due 2024, at a price approximately the same as the initial conversion price of the Notes due 2025 and Notes due 2024. These transactions are expected to reduce the potential dilution with respect to our common stock upon conversion of the Notes due 2025 and Notes due 2024. Separately, we also entered into privately negotiated warrant transactions to acquire the same number of shares of our common stock initially issuable upon conversion of the Notes due 2025 and Notes due 2024 (subject to customary anti-dilution adjustments) at an initial strike price of approximately $106.94 per share and $25.23 per ~~share.~~share for Notes due 2025 and Notes due 2024, respectively. If the market value per share of our common stock, as measured under the warrants, exceeds the strike price of the warrants, the warrants will have a dilutive effect on the ownership interests of existing stockholders and on our earnings per share, unless we elect, subject to certain conditions, to settle the warrants in cash. However, we may not have enough available cash or be able to obtain financing at the time of settlement.

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In addition, the existence of the convertible note hedge and warrant transactions may encourage purchasing and selling share of our common stock, or other of our securities and instruments, in open market and/or privately negotiated transactions in order to modify hedge positions. Any of these activities could adversely affect the value of our common stock and the value of the Notes due 2025 and Notes due 2024.

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Changes in current accounting methods, standards, or regulations applicable to the Convertible Notes due 2024 and Notes due 2025 could have a material impact on our reported financial results, future financial results, future cash flows, and/or our stock price.

Under Accounting Standards Codification (“ASC”) 470-20, “Debt with Conversion and Other Options,” an entity must separately account for the ~~liability~~host contract and ~~equity components of~~conversion option associated with convertible debt instruments, such as the Notes due 2025 and Notes due 2024, that may be settled entirely or partially in cash upon conversion, in a manner that reflects the issuer’s economic interest cost. ~~Accordingly,~~For Notes due 2024, conversion option meets the classification of an equity component, hence we have included the equity component in the additional paid-in capital section of stockholders’ equity on our condensed consolidated balance sheet at the issuance ~~date,~~date. For Notes due 2025, conversion option met the classification of an embedded derivative liability, from March 9, 2020 to May 19, 2020, and hence we had included embedded derivative liability in the Debt, non-current on our condensed consolidated balance sheet at the issuance date. Effective upon the filing of an amendment to our certificate of incorporation on May 20, 2020, the conversion option of the Notes due 2025 met the classification of an equity component, hence we reclassified the embedded derivative liability in the Debt, non-current to additional paid-in capital section of stockholders’ equity on our condensed consolidated balance sheet on May 20, 2020. This change in fair value of derivatives has resulted in a charge recognized of $44.3 million for the nine months ended September 30, 2020. We have treated the value of the equity component and embedded derivative liability as debt discount for the ~~liability component.~~host contract at the issuance date. We are required to amortize the debt discount as non-cash interest expense over the term of the Notes due 2025 and Notes due 2024, which could adversely affect our reported or future financial results or the trading price of our common stock.

In addition, we use the treasury stock method for convertible debt instruments (such as the Notes due ~~2024)~~2024 since the date of issuance and Notes due 2025 since May 20, 2020) that may be settled entirely or partly in cash, and the effect of which is that any shares issuable upon conversion of the notes are not included in the calculation of diluted earnings per share except to the extent that the conversion value of such notes exceeds their principal amount. ~~Under~~In August 2020, the ~~treasury stock method,~~FASB issued Account Standard Update (“ASU”) 2020-06, “Debt - Debt with Conversion and Other Options (subtopic 470-20),” effective January 1, 2022, which requires a convertible debt instrument to be accounted for as a single liability measured at its amortized cost. Interest expense recorded in the condensed consolidated statements of operations will be close to the coupon rate interest expense. Further, for the diluted earnings per share purposes, the transaction is accounted for as if the number of shares of common stock that would be necessary to settle such excess conversion value, if we elected to settle such excess in shares, are issued. We cannot be sure that the accounting standards in the future will continue to permit use of the treasury stock method. If we are unable to use thecalculation, treasury stock method inwill no longer be permitted. The if-converted method will be used for the calculation of the diluted earnings per share calculation, when accounting for the shares issuable upon conversion of the Notes due 2024 ~~then~~and Notes due 2025, which will adversely affect our diluted earnings per ~~share will be adversely affected.~~share.

~~Accounting Standards Update (“ASU”)~~ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments,” clarifies how certain cash receipts and payments should be classified in the statement of cash flows, including the cash settlement for our Notes due ~~2024.~~2024 and Notes due 2025. Upon cash settlement, repayment of the principal amount will be bifurcated between cash outflows for operating activities for the portion related to accreted interest attributable to debt discounts arising from the difference between the coupon interest rate and the effective interest rate, and financing activities for the remainder. This will require us to classify the $36.4 million for Notes due 2024 and $68.7 million for Notes due 2025 of accreted interest as cash used in operating activities in our consolidated statement of cash flows upon cash settlement, if such cash settlement occurs prior to the adoption of ASU 2020-06 discussed above, which could adversely affect our future cash flow from operations.

From time to time we are involved in a number of legal proceedings and, while we cannot predict the outcomes of such proceedings and other contingencies with certainty, some of these outcomes could adversely affect our business and financial condition.

We are, or may become, involved in legal proceedings, government and agency investigations, and consumer, employment, tort and other litigation (see discussion of “Legal Proceedings” in Item 1 Part II of this Quarterly Report on Form 10-Q). We cannot predict with certainty the outcomes of these legal proceedings. The outcome of some of these legal proceeding could require us to take, or refrain from taking, actions which could negatively affect our operations or could require us to pay substantial amounts of money adversely affecting our financial condition and results of operations. Additionally, defending against lawsuits and legal proceedings may involve significant expense

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and diversion of management's attention and resources. Negative publicity surrounding such legal proceedings may also harm our reputation and adversely impact our business and financial condition.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other

None.

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 3749

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Item 6. Exhibits

A list of exhibits filed with this report or incorporated herein by reference is found in the Exhibit Index below.

~~Incorporation by Reference~~

~~Exhibit Number~~

~~Exhibit Description~~

~~Form~~

~~SEC File No.~~

~~Exhibit~~

~~Filing Date~~

~~Filed Herewith~~

~~31.1~~

~~Certification of Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a)~~.

~~31.2~~

~~Certification of Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a)~~.

~~32.1~~*

~~Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002~~.

~~101.INS~~

~~XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.~~

~~101.SCH~~

~~XBRL Taxonomy Extension Schema Document.~~

~~101.CAL~~

~~XBRL Taxonomy Extension Calculation Linkbase Document.~~

~~101.DEF~~

~~XBRL Taxonomy Extension Definition Linkbase Document.~~

~~101.LAB~~

~~XBRL Taxonomy Extension Label Linkbase Document.~~

~~101.PRE~~

~~XBRL Taxonomy Extension Presentation Document.~~

Incorporation by Reference

Exhibit Number

Exhibit Description

Form

SEC File No.

Exhibit

Filing Date

Filed Herewith

3.1

Amended and Restated Certificate of Incorporation of Enphase Energy, Inc.

8-K

001-35480

3.1

4/6/2012

3.2

Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Enphase Energy, Inc.

10-Q

001-35480

3.1

8/9/2017

3.3

Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Enphase Energy, Inc.

10-Q

001-35480

2.1

8/6/2018

3.4

Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Enphase Energy, Inc.

8-K

001-35480

3.1

5/27/2020

3.5

Amended and Restated Bylaws of Enphase Energy, Inc.

S-1/A

333-174925

3.5

3/12/2012

4.1

Specimen Common Stock Certificate of Enphase Energy, Inc.

S-1/A

333-174925

4.1

3/12/2012

4.2

Indenture, dated August 17, 2018, between Enphase Energy, Inc. and U.S. Bank National Association.

8-K

001-35480

4.1

8/17/2018

4.3

Form of 4.00% Convertible Senior Note due 2023 (included in Exhibit 4.2).

8-K

001-35480

4.1

8/17/2018

4.4

Indenture, dated June 5, 2019, between Enphase Energy, Inc. and U.S. Bank National Association.

8-K

001-35480

4.1

6/5/2019

4.5

Form of 1.00% Convertible Senior Note due 2024 (included in Exhibit 4.4).

8-K

001-35480

4.1

6/5/2019

4.6

Indenture, dated March 9, 2020, between Enphase Energy, Inc. and U.S. Bank National Association.

8-K

001-35480

4.1

3/9/2020

4.7

Form of 0.25% Convertible Senior Note due 2025 (included in Exhibit 4.1).

8-K

001-35480

4.2

3/9/2020

10.1

Offer Letter, by and between Enphase Energy, Inc. and Jamie Haenggi, dated August 21, 2020

31.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a).

31.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a).

32.1*

Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS

XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

101.SCH

XBRL Taxonomy Extension Schema Document.

101.CAL

XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF

XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB

XBRL Taxonomy Extension Label Linkbase Document.

101.PRE

XBRL Taxonomy Extension Presentation Document.

104

Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101).

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*	The certifications attached as Exhibit 32.1 accompany this quarterly report on Form 10-Q pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and shall not be deemed “filed” by Enphase Energy, Inc. for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report on Form 10-Q to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated: October ~~29, 2019~~27, 2020



	ENPHASE ENERGY, INC.

	By:		/s/ Eric Branderiz
			Eric Branderiz
			Executive Vice President and Chief Financial Officer
			(Duly Authorized Officer)

Enphase Energy, Inc. | ~~Q3 2019~~2020 Form 10-Q | 3952



Contract Assets
Balance on December 31, 2018	$	47,664
Amount recognized	(10,988		)
Increase	14,705
Balance as of September 30, 2019	$	51,381



	Lease Loss Reserves and Contractual Obligations
	(In thousands)
Balance as of December 31, 2018	$	1,591
Other ⁽¹⁾	(1,591		)
Balance as of September 30, 2019	$	—