Volta (VLTA) 10-Q 11 Aug 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Aug. 09, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-39508
Entity Registrant Name	Volta Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	35-2728007
Entity Address, Address Line One	155 De Haro Street
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94103
City Area Code	888
Local Phone Number	264-2208
Title of 12(b) Security	Class A common stock, par value of $0.0001 per share
Trading Symbol	VLTA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Central Index Key	0001819584
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false
Warrants
Entity Information [Line Items]
Title of 12(b) Security	Warrants, each exercisable for one share of Class A common stock for $11.50 per share
Trading Symbol	VLTA WS
Security Exchange Name	NYSE
Class A Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		168,475,729
Class B Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 105,268	$ 262,260
Accounts receivable, net of allowance for doubtful accounts of $42 and $0, respectively	18,930	12,587
Inventory	2,345	2,726
Prepaid partnership costs	9,414	8,982
Prepaid expenses and other current assets	12,354	12,091
Total current assets	148,311	298,646
Operating lease right-of-use assets, net	93,608	76,364
Property and equipment, net	166,317	97,728
Restricted cash	3,434	0
Other noncurrent assets	427	321
Intangible assets, net	1,491	643
Goodwill	221	221
Total assets	413,809	473,923
Current liabilities:
Accounts payable	39,766	18,461
Accrued expenses and other current liabilities	23,301	20,168
Current portion of operating leases	8,509	5,952
Deferred revenue	12,571	8,450
Term loan payable, net of unamortized issuance costs - current	15,998	15,998
Warrant liabilities	4,221	27,071
Total current liabilities	104,366	96,100
Term loan payable, net of unamortized issuance costs and current term loan payable	15,998	23,997
Noncurrent operating leases	80,467	64,422
Other noncurrent liabilities	8,954	7,268
Total liabilities	209,785	191,787
Commitments and contingencies
Stockholders' Equity
#REF!	17	16
Additional paid-in capital	718,050	710,638
Accumulated other comprehensive income	271	213
Accumulated deficit	(514,314)	(428,731)
Total stockholders’ equity	204,024	282,136
Total liabilities and stockholders’ equity	$ 413,809	$ 473,923

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Allowance for doubtful accounts	$ 42	$ 0
Common stock, shares authorized (in shares)	400,000,000
Common stock, shares issued (in shares)	168,051,969	162,105,399
Common stock, shares outstanding (in shares)	168,051,969	162,105,399
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	350,000,000
Common stock, shares issued (in shares)	168,051,969	152,218,214
Common stock, shares outstanding (in shares)	168,051,969	152,218,214
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000
Common stock, shares issued (in shares)	0	9,887,185
Common stock, shares outstanding (in shares)	0	9,887,185

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenue
Total operating revenue	$ 15,344	$ 6,943	$ 23,730	$ 11,683
Operating Expense
Selling, general and administrative	43,938	17,352	100,157	78,209
Depreciation and amortization	4,617	2,523	8,312	4,696
Other operating expense	1,352	777	1,678	924
Total operating expense	59,728	25,783	129,650	93,921
Operating Loss	(44,384)	(18,840)	(105,920)	(82,238)
Other (Income) Expense
Interest expense, net	1,199	1,673	2,512	3,333
Other expense, net	0	77	0	278
Change in fair value of warrant liabilities	(8,151)	(30)	(22,851)	(118)
Total other (income) expense	(6,952)	1,720	(20,339)	3,493
Loss Before Income Taxes	(37,432)	(20,560)	(85,581)	(85,731)
Income tax expense	2	24	2	24
Net Loss	(37,434)	(20,584)	(85,583)	(85,755)
Other Comprehensive Loss
Foreign currency translation adjustment	(30)	0	58	0
Total Comprehensive Loss	(37,464)	(20,584)	(85,525)	(85,755)
Class A Common Stock
Other (Income) Expense
Net Loss	$ (37,403)	$ (12,173)	$ (80,986)	$ (47,477)
Other Comprehensive Loss
Weighted-average common stock outstanding, basic (in shares)	167,240,447	11,192,179	160,477,617	9,592,405
Weighted-average common stock outstanding, diluted (in shares)	167,240,447	11,192,179	160,477,617	9,592,405
Net loss per common stock, basic (in dollars per share)	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Net loss per common stock, diluted (in dollars per share)	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Class B Common Stock
Other (Income) Expense
Net Loss	$ (31)	$ (8,411)	$ (4,597)	$ (38,278)
Other Comprehensive Loss
Weighted-average common stock outstanding, basic (in shares)	140,369	7,733,885	9,109,265	7,733,885
Weighted-average common stock outstanding, diluted (in shares)	140,369	7,733,885	9,109,265	7,733,885
Net loss per common stock, basic (in dollars per share)	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Net loss per common stock, diluted (in dollars per share)	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Service
Operating Revenue
Total operating revenue	$ 14,791	$ 6,826	$ 22,765	$ 11,057
Operating Expense
Costs (exclusive of depreciation and amortization shown below)	9,821	5,131	19,206	9,740
Product
Operating Revenue
Total operating revenue	0	0	275	299
Operating Expense
Costs (exclusive of depreciation and amortization shown below)	0	0	297	352
Other
Operating Revenue
Total operating revenue	$ 553	$ 117	$ 690	$ 327

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Changes in Stockholders' (Deficit) Equity - USD ($) $ in Thousands	Total	Series D	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020			76,494,000	24,696,000
Beginning balance at Dec. 31, 2020	$ (138,902)		$ 182,599	$ 1	$ 13,233	$ 0	$ (152,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Series D preferred stock (in shares)		2,256,000
Issuance of Series D preferred stock		$ 13,721
Issuance of Series D preferred stock - related party (in shares)		2,466,000
Issuance of Series D preferred stock - related party		$ 15,000
Issuance costs - Series D		$ (1,290)
Issuance of restricted stock awards - related party (in shares)				6,917,000
Issuance of restricted stock awards - related party	40,237			$ 1	40,236
Issuance of common stock upon exercise of options (in shares)				1,003,000
Issuance of common stock upon exercise of options	1,089			$ 2	1,087
Stock-based compensation expense	6,564				6,564
Issuance of common stock for acquisitions (in shares)				182,000
Issuance of common stock for acquisitions	1,220				1,220
Issuance of common stock upon exercise of warrants - related party (in shares)				182,000
Issuance of common stock upon exercise of warrants - related party	1				1
Other comprehensive gain/loss	0
Net loss	(85,755)						(85,755)
Ending balance (in shares) at Jun. 30, 2021			81,216,000	32,980,000
Ending balance at Jun. 30, 2021	(175,546)		$ 210,030	$ 4	62,341	0	(237,891)
Beginning balance (in shares) at Mar. 31, 2021			81,216,000	32,232,000
Beginning balance at Mar. 31, 2021	(157,689)		$ 210,030	$ 3	59,615	0	(217,307)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of options (in shares)				384,000
Issuance of common stock upon exercise of options	224			$ 1	223
Stock-based compensation expense	1,282				1,282
Issuance of common stock for acquisitions (in shares)				182,000
Issuance of common stock for acquisitions	1,220				1,220
Issuance of common stock upon exercise of warrants - related party (in shares)				182,000
Issuance of common stock upon exercise of warrants - related party	1				1
Other comprehensive gain/loss	0
Net loss	(20,584)						(20,584)
Ending balance (in shares) at Jun. 30, 2021			81,216,000	32,980,000
Ending balance at Jun. 30, 2021	$ (175,546)		$ 210,030	$ 4	62,341	0	(237,891)
Beginning balance (in shares) at Dec. 31, 2021	162,105,399		0	162,105,000
Beginning balance at Dec. 31, 2021	$ 282,136		$ 0	$ 16	710,638	213	(428,731)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of options (in shares)	525,150			525,000
Issuance of common stock upon exercise of options	$ 373				373
Stock-based compensation expense	23,225				23,225
Issuance of common stock upon the settlement of vested restricted stock units, net of shares withheld for taxes (in shares)				5,343,000
Issuance of common stock upon the settlement of vested restricted stock units, net of shares withheld for taxes	(16,554)			$ 1	(16,555)
Issuance of common stock for acquisitions (in shares)				150,000
Issuance of common stock for acquisitions	369				369
Forfeiture of shares to settle promissory notes (in shares)				(71,000)
Other comprehensive gain/loss	58					58
Net loss	$ (85,583)						(85,583)
Ending balance (in shares) at Jun. 30, 2022	168,051,969		0	168,052,000
Ending balance at Jun. 30, 2022	$ 204,024		$ 0	$ 17	718,050	271	(514,314)
Beginning balance (in shares) at Mar. 31, 2022			0	162,244,000
Beginning balance at Mar. 31, 2022	250,704		$ 0	$ 16	727,267	301	(476,880)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of options (in shares)				386,000
Issuance of common stock upon exercise of options	229				229
Stock-based compensation expense	6,740				6,740
Issuance of common stock upon the settlement of vested restricted stock units, net of shares withheld for taxes (in shares)				5,343,000
Issuance of common stock upon the settlement of vested restricted stock units, net of shares withheld for taxes	(16,554)			$ 1	(16,555)
Issuance of common stock for acquisitions (in shares)				150,000
Issuance of common stock for acquisitions	369				369
Forfeiture of shares to settle promissory notes (in shares)				(71,000)
Other comprehensive gain/loss	(30)					(30)
Net loss	$ (37,434)						(37,434)
Ending balance (in shares) at Jun. 30, 2022	168,051,969		0	168,052,000
Ending balance at Jun. 30, 2022	$ 204,024		$ 0	$ 17	$ 718,050	$ 271	$ (514,314)

Unaudited Condensed Consolida_5

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows From Operating Activities:
Net loss	$ (85,583)	$ (85,755)
Adjustments to reconcile net loss to net cash used in operating activities:
Reduction in the carrying amount of ROU assets	5,654	1,928
Depreciation and amortization	8,312	4,696
Stock-based compensation, net of amounts capitalized	22,831	46,800
Amortization of debt issuance costs	168	0
Non-cash interest expense	0	167
Revaluation of warrant liabilities to estimated fair value	(22,851)	(118)
Expenses related to invoices in dispute	0	624
Loss on disposal of property and equipment and inventory	2,352	865
Changes in operating assets and liabilities	(4,913)	(15,224)
Net cash used in operating activities	(74,030)	(46,017)
Cash Flows From Investing Activities:
Purchase of property and equipment	(50,725)	(8,403)
Capitalization of internal-use software	(3,249)	(39)
Acquisition of technology patent	(875)	0
Acquisition of 2Predict	0	(200)
Net cash used in investing activities	(54,849)	(8,642)
Cash Flows From Financing Activities:
Due from employees for taxes paid on partial recourse notes	0	(8,340)
Proceeds from issuance of Series D preferred stock	0	28,721
Payments of long term debt	(8,167)	0
Proceeds from exercise of common stock warrants - related party	0	1
Proceeds from exercise of stock options	359	1,088
Taxes paid related to net share settlement of equity awards	(16,554)	0
Payment of issuance costs related to Series D and D-1 preferred stock	0	(1,290)
Payment of financing activity principal	(375)	(296)
Net cash (used in) provided by financing activities	(24,737)	19,884
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	58	0
Net decrease in cash, cash equivalents, and restricted cash	(153,558)	(34,775)
Cash, cash equivalents, and restricted cash at beginning of period	262,260	58,806
Cash, cash equivalents, and restricted cash at end of period	108,702	24,031
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	105,268	24,031
Restricted cash	3,434	0
Total cash, cash equivalents, and restricted cash	$ 108,702	$ 24,031

Description of Business

Description of Business	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Note 1 - Description of Business Volta Inc. ("Volta", the "Company", "our", "we", or "its") operates a network of smart media-enabled charging stations for electric vehicles ("EV") across the U.S. and Europe. Revenue is primarily derived by selling paid advertising on our media-enabled charging station network, and installing and maintaining charging stations. The Company is headquartered in San Francisco, California. On August 26, 2021 ("Closing Date"), Tortoise Acquisition Corp. II ("Tortoise Corp II") consummated a reverse recapitalization (the "Reverse Recapitalization") contemplated by the Business Combination Agreement and Plan of Reorganization, dated as of February 7, 2021 (the "Business Combination Agreement"), by and among Tortoise Corp II, SNPR Merger Sub I, Inc., SNPR Merger Sub II, LLC, and Volta Industries, Inc. (“Legacy Volta”). On the Closing Date, and in connection with the closing contemplated by the Business Combination Agreement (the "Closing"), Tortoise Corp II was renamed Volta Inc. and began trading on the New York Stock Exchange ("NYSE") under the ticker symbol "VLTA". The Company's warrants exercisable for $11.50 per share of Volta's Class A common stock (the "Public Warrants") also trade on the NYSE under the ticker symbol "VLTA WS".

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 - Summary of Significant Accounting Policies Basis of presentation and consolidation The accompanying unaudited condensed consolidated financial statements include the accounts of Volta and its wholly-owned subsidiaries and have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the consolidated financial statements and accompanying notes in the Company's Form 10-K for the year ended December 31, 2021. The unaudited condensed consolidated financial statements and the accompanying notes have been prepared on the same basis as the annual consolidated financial statements and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results of operations for the periods presented. Reclassifications Certain prior period amounts have been reclassified to conform to current period presentation. These reclassifications have no effect on previously reported results of operations or loss per share. Concentration of risk As of June 30, 2022, two customers accounted for 19.8% and 18.2% of the Company's accounts receivable balance, respectively. As of December 31, 2021, three customers accounted for 30.5%, 22.0% and 18.7% of the Company's accounts receivable balance, respectively. For the three months ended June 30, 2022, three customers accounted for 22.6%, 17.7% and 10.0% of the Company's revenue, respectively. For the six months ended June 30, 2022, two customers accounted for 23.7% and 16.1% of the Company's revenue, respectively. For the three months ended June 30, 2021, three customers accounted for 24.0%, 23.2% and 10.4% of the Company's revenue, respectively. For the six months ended June 30, 2021, four customers accounted for 21.5%, 14.3%, 12.0% and 11.4% of the Company's revenue, respectively. Revenue generated by these customers arises from a portfolio of contracts with multiple, separate, legal entities. The Company mitigates concentration risk as all contracts are executed with these separate, legal entities. As of June 30, 2022 and December 31, 2021, no supplier accounted for more than 10.0% of the Company's accounts payable orders. The Company mitigates concentration risk by maintaining contracts and agreements with alternative suppliers and is actively expanding its supplier network. COVID-19 and supply chain impact There continues to be widespread impact from the COVID-19 pandemic and the impact of the COVID-19 outbreak on the Company’s financial position will depend on future developments, including the duration and spread of the outbreak and related advisories and restrictions. These developments and the impact of the COVID-19 outbreak on the financial markets, the global supply chain and the overall economy are highly uncertain and cannot be predicted. If the financial markets and/or the overall economy are impacted for an extended period, the Company’s financial position may be materially adversely affected. We have experienced and are experiencing varying levels of inflation resulting in part from various supply chain disruptions, increased shipping and transportation costs, increased raw material and labor costs and other disruptions caused by the COVID-19 pandemic and general global economic conditions. We continue to monitor the ongoing and dynamic impacts of COVID-19, as well as guidance from federal, state and local public health authorities. Liquidity Concern The Company's unaudited condensed consolidated financial statements are prepared on a going concern basis, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business. Management has considered conditions and events which provide substantial doubt about the Company's ability to continue as a going concern over the 12 months following the issuance of the unaudited condensed consolidated financial statements. The Company concluded that there is substantial doubt about the Company's ability to continue as a going concern in the next 12 months based on reasonable information available as of the date of this analysis. No assurances can be provided that additional funding will be available at terms acceptable to the Company, if at all. If the Company is unable to raise additional capital, the Company will need to significantly curtail its operations, modify strategic plans and/or dispose of certain operations or assets. As of June 30, 2022 the Company had $32.7 million outstanding on a term loan. The term loan agreement requires the Company to be in compliance with certain financial covenants, including maintaining a minimum cash balance and total and average revenue covenants. If the Company does not raise additional capital it is unlikely the financial requirements will be met in future periods and the lenders will have the right to exercise remedies, including an increase in the interest rate by 3.0% per annum, and an option to require repayment of the loan in the event of default. The Company would then be required to reclassify the $16.3 million noncurrent portion of the loan to current. For more information on the term loan agreement, see Note 6 - Debt. Recent accounting pronouncements Recently issued accounting pronouncements not yet adopted In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which was subsequently amended by ASU No. 2018-19, ASU No. 2019-04, ASU No. 2019-05, ASU No. 2019-10, ASU 2019-11, and ASU 2022-02. The guidance amended reporting requirements for credit losses for assets held at amortized cost basis and available-for-sale debt securities. For available-for-sale debt securities, credit losses will be presented as an allowance rather than as a write-down. In addition, the length of time a security has been in an unrealized loss position will no longer impact the determination of whether a credit loss exists. ASU 2016-13, as subsequently amended for various technical issues, is effective for smaller reporting companies following private company adoption dates for fiscal years beginning after December 15, 2022, and for interim periods within those fiscal years. If the Company were to lose smaller reporting company status during 2022,

Revenue

Revenue	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	Note 3 - Revenue Disaggregation of revenue The Company's operations represent a single operating segment based on how the Company and its chief operating decision maker manage the business. The Company disaggregates revenue by major category, as shown below, based on what it believes are the primary economic factors that impact the nature, amount, timing, and uncertainty of revenue and cash flows from these customer contracts. Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Media $ 11,221 $ 6,485 $ 17,339 $ 10,014 Network development 3,577 340 5,791 1,341 Charging network operations 370 1 371 1 Network intelligence 176 117 229 327 Total operating revenue $ 15,344 $ 6,943 $ 23,730 $ 11,683 Media Media revenue is generated based on the number of advertising impressions delivered over the contract term, which is typically less than one year. Media revenue is recorded in service revenue in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. Network development Network development revenue is generated from installation and infrastructure development services, operation and maintenance services offered over the contract term and sales of charging stations. Revenue generated through infrastructure development services, installation services, operation and maintenance services and installed infrastructure is recorded in service revenue in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. Revenue generated through charging station products is recorded in product revenue in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. As the Company continues focusing on generating services revenue, the Company does not expect a material increase in product revenue going forward as it does not constitute the Company's primary revenue generating operations. In arrangements where the Company pays consideration to a customer for a distinct good or service, the consideration payable to a customer is limited to the fair value of the distinct good or service received by the customer. If the contractual payments for the location lease of this arrangement are in excess of fair value, then the Company will estimate the excess contractual payments over fair value and record that amount as a reduction to the transaction price in the arrangement. The Company reduced the transaction price and recognized consideration payable to a customer of $25.0 thousand and $10.6 thousand for the three months ended June 30, 2022 and 2021, respectively, and $0.3 million and $0.2 million for the six months ended June 30, 2022 and 2021, respectively. Charging network operations Charging network operations revenue is primarily generated by selling regulatory credits or California's Low-Carbon Fuel Standard ("LCFS") credits to other regulated entities and pay-for-use charging. Charging network operations revenue is recorded in other revenue in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. Revenue from driver charging sessions and charging transaction fees is recognized at the point in time the charging session or transaction is completed. The Company is transitioning to a pay-for-use charging model and charging revenue has been insignificant as of June 30, 2022. Costs associated with charging network operations are comprised of a minor amount of personnel-related costs which are presented in selling, general and administrative expense in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. Network intelligence Network intelligence revenue is generated through the delivery of Software as a Service ("SaaS") to the customer. Network intelligence revenue is recorded in other revenue in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. Remaining performance obligations The transaction price allocated to remaining performance obligations represent contracted revenue that has not yet been recognized, which includes deferred revenue and unbilled amounts that are expected to be recognized as revenue in future periods and excludes the performance obligations that are subject to cancellation terms. The remaining performance obligations related to advertising services, the sale of media-enabled charging stations, installation services and SaaS are recorded within deferred revenue and other noncurrent liabilities on the accompanying unaudited condensed consolidated balance sheets. The total remaining performance obligations, excluding advertising services contracts that have a duration of one year or less, were $31.5 million and $31.4 million as of June 30, 2022 and December 31, 2021, respectively. As of June 30, 2022, the Company expects to recognize approximately 47.8% of its remaining performance obligations as revenues in the next twelve months, and the remainder thereafter. Deferred revenue The Company recognized $3.3 million and $0.2 million of revenue during the three months ended June 30, 2022 and 2021, respectively, and $5.3 million and $1.0 million during the six months ended June 30, 2022 and 2021, respectively, that was included in the deferred revenue balance at the beginning of the period. As of June 30, 2022, deferred revenue related to customer payments amounted to $13.7 million, of which $12.6 million is expected to be recognized during the succeeding twelve-month period and is therefore presented as current. Unbilled receivables Unbilled receivables result from amounts recognized as revenues but not yet invoiced as of the unaudited condensed consolidated balance sheet date. As of June 30, 2022 and December 31, 2021, the Company had $3.3 million and $0.8 million, respectively, in unbilled receivables which are included in the accounts receivable balance.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 4 - Fair Value Measurements The following tables present information about the Company’s liabilities that are measured at fair value on a recurring basis. (in thousands) Carrying Amount Total Level 1 Level 2 Level 3 June 30, 2022 Term loan $ 31,996 $ 32,429 $ — $ 32,429 $ — Public warrants 2,500 2,500 2,500 — — Private warrants 1,721 1,721 — — 1,721 Total $ 36,217 $ 36,650 $ 2,500 $ 32,429 $ 1,721 December 31, 2021 Term loan $ 39,995 $ 41,242 $ — $ 41,242 $ — Public warrants 16,036 16,036 16,036 — — Private warrants 11,036 11,036 — — 11,036 Total $ 67,067 $ 68,314 $ 16,036 $ 41,242 $ 11,036 There were no transfers of financial instruments between levels of the hierarchy for both the three and six months ended June 30, 2022 and 2021. Level 2 valuation - senior secured term loan The Company measures the fair value of the senior secured term loan using discounted cash flows and market-based expectations for credit risk and market risk. Level 3 valuation - Private Warrants As of June 30, 2022, the Company has Private Warrants (the “Private Warrants”) measured at fair value on a recurring basis using the Binomial Lattice Model ("BLM"). The BLM's primary unobservable input utilized in determining the fair value of the Private Warrants is the expected volatility of the common stock. The expected volatility as of the Closing and as of subsequent valuation dates was derived from observable Public Warrants pricing. Accordingly, the Private Warrants are classified as Level 3 financial instruments. See Note 7 - Warrants for additional information. The following table provides quantitative information regarding Level 3 Private Warrants fair value measurements inputs at their measurement dates : June 30, 2022 December 31, 2021 Expected dividend yield — % — % Risk-free interest rate 2.4 % 1.2 % Expected volatility 215.0 % 132.5 % Expected term (in years) 4.2 4.5 The Private Warrants were valued as of June 30, 2022 using the estimated fair value price of $0.29 per Private Warrant. The changes in the fair value of the Private Warrants were as follows: (in thousands) Amount Balance at December 31, 2021 $ 11,036 Decrease in fair value of Private Warrants (9,315) Balance at June 30, 2022 $ 1,721 Balance at December 31, 2020 $ 698 Decrease in fair value of Private Warrants (118) Balance at June 30, 2021 $ 580

Condensed Consolidated Financia

Condensed Consolidated Financial Statement Details	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Consolidated Financial Statement Details	Note 5 - Condensed Consolidated Financial Statement Details Balance Sheet Details The following tables provide details of selected balance sheet items: Property and equipment, net: (in thousands) June 30, 2022 December 31, 2021 Charging stations and digital media screens $ 114,751 $ 79,104 Construction in progress: stations 67,919 33,434 Capitalized research and development equipment 2,176 2,689 Development in progress: software 3,756 — Computer and office equipment 1,726 1,545 Leasehold improvements 1,848 856 Capitalized software 888 888 Furniture 229 229 Other fixed assets 4,214 3,736 Total property and equipment 197,507 122,481 Less: accumulated depreciation and amortization (31,190) (24,753) Property and equipment, net $ 166,317 $ 97,728 Intangible assets, net: June 30, 2022 December 31, 2021 (in thousands) Cost Accumulated Amortization Net Cost Accumulated Amortization Net Patent $ 1,244 $ — $ 1,244 $ — $ — $ — Intellectual property 1,200 953 247 1,200 557 643 $ 2,444 $ 953 $ 1,491 $ 1,200 $ 557 $ 643 In June 2022, the Company acquired $1.2 million of technology patents which have a useful life of 9 years. Depreciation and amortization: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Depreciation $ 4,418 $ 2,370 $ 7,915 $ 4,543 Intangible amortization 199 153 397 153 Total depreciation and amortization $ 4,617 $ 2,523 $ 8,312 $ 4,696 Estimated future amortization expense for intangible assets is as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 316 2023 138 2024 138 2025 138 2026 138 Thereafter 623 Total $ 1,491 Accrued expenses and other current liabilities: (in thousands) June 30, 2022 December 31, 2021 Charging station expenses $ 12,524 $ 5,393 Employee related expenses 6,238 9,239 Lease incentive liability 1,947 2,354 Severance 1,574 — Accrued interest — 1,294 Deposit liability — 850 Other 1,018 1,038 Total accrued expenses and other current liabilities $ 23,301 $ 20,168 Supplemental Cash Flow Information The following tables provide details of selected cash flow information: Changes in operating assets and liabilities: Six Months Ended June 30, (in thousands) 2022 2021 Accounts receivable $ (6,266) $ (2,033) Inventory 381 1,151 Prepaid expenses and other current assets (249) (7,268) Prepaid partnership costs (1,324) (726) Operating lease right-of-use assets (22,453) (7,217) Other noncurrent assets (106) 9 Accounts payable (2,752) 3,471 Accrued expenses and other current liabilities 2,160 (7,127) Accrued interest (1,294) (1,391) Deferred revenue 3,431 (401) Operating lease liability 18,603 6,008 Other noncurrent liabilities 4,956 300 Total change in operating assets and liabilities: $ (4,913) $ (15,224) Supplemental disclosures of cash flow information: Six Months Ended June 30, (in thousands) 2022 2021 Cash paid for interest $ 3,637 $ 3,070 Cash paid for taxes $ — $ 24 Non-cash investing and financing activities: Six Months Ended June 30, (in thousands) 2022 2021 Purchases of property and equipment not yet settled $ 24,789 $ 11,810 Initial recognition of operating lease right-of-use asset $ 22,682 $ 7,298 Initial recognition of operating lease liability $ 22,205 $ 6,934 Common stock issued for acquisition of 2Predict $ — $ 1,221 Issuance of common stock for patent acquisition $ 369 $ — Stock-based compensation capitalized to internal-use software $ 394 $ —

Debt

Debt	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Debt	Note 6 - Debt Outstanding debt is as follows: (in thousands) June 30, 2022 December 31, 2021 Term loan payable (a) (b) $ 32,666 $ 40,833 Less: term loan - current portion (15,998) (15,998) Less: unamortized debt issuance costs (670) (838) Term loan payable - noncurrent portion $ 15,998 $ 23,997 (a) The term loan bears interest on the total outstanding balance at 12.0% per annum and is secured by certain qualifying assets of the Company. Principal payments are due in equal monthly installments beginning on July 1, 2021 and matures on June 19, 2024. (b) Accrued interest on the term loan payable was $0.0 million and $1.3 million at June 30, 2022 and December 31, 2021, respectively. Term loan payable In June 2019, the Company entered into a term loan agreement that was subsequently amended. The term loan agreement, as amended, provides a senior secured term loan facility of up to $49.0 million. Total payments on the principal balance for the six months ended June 30, 2022 were $8.2 million. The term loan agreement contains certain covenants pertaining to reporting and financial requirements, as well as negative and affirmative covenants. If the Company does not meet its reporting and financial requirements, the lenders have the right to request remedies, including an increase in the interest rate by 3.0% per annum, and an option to require repayment of the loan in the event of default. The Company is in compliance with all covenants in relation to the period ended June 30, 2022. In March 2022 certain additional covenants pertaining to investments by the Company in its foreign subsidiaries Volta Canada Inc., Volta Charging Germany GmbH and Volta France SARL were implemented through an amendment to the term loan agreement. Accordingly, in May, 2022, the Company funded $3.3 million into an escrow account to cover projected investments as of June 30, 2022 in such foreign subsidiaries, which is presented as restricted cash on the accompanying unaudited condensed consolidated balance sheets. As a result, the amendment requires that investments in such foreign subsidiaries shall not exceed 125% of funds held in escrow. For more information on the term loan agreement, see Item 2. Management's Discussion and Analysis of Financial Conditions and Results of Operations - Financial Condition, Liquidity, and Capital Resources - Term Loan. Future payments for the term loan are as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 8,167 2023 16,333 2024 8,166 Total $ 32,666

Warrants

Warrants	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Warrants	Note 7 - Warrants Legacy Volta common stock warrants As of June 30, 2022 and December 31, 2021, 9,773,835 Legacy Volta Class A common stock warrants were outstanding. As of June 30, 2022 and December 31, 2021, 5,933,333 and 8,621,440 Private and Public warrants were outstanding. There was no warrant exercise activity during the three and six months ended June 30, 2022.

Stock Incentive Plans and Equit

Stock Incentive Plans and Equity Awards	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Stock Incentive Plans and Equity Awards	Note 8 - Stock Incentive Plans and Equity Awards Shares reserved for issuance The Company has the following shares of common stock reserved for issuance, on an as-if converted basis: June 30, 2022 December 31, 2021 Shares available for grant – 2021 Equity incentive plan 22,116,450 14,357,382 Unvested restricted stock units 20,777,716 29,688,046 Legacy Volta Class A common stock warrants 9,773,835 9,773,835 Options outstanding 9,151,773 11,464,745 Outstanding Public Warrants 8,621,440 8,621,440 Outstanding Private Warrants 5,933,333 5,933,333 Shares available for purchase - 2021 ESPP plan 3,715,944 3,715,944 Total shares of common stock reserved 80,090,491 83,554,725 Employee stock purchase plan No offerings or purchases of common stock shares took place during the three and six months ended June 30, 2022. Equity incentive plans 2021 Equity Incentive Plan As of June 30, 2022, 22,116,450 shares of common stock were available and reserved for issuance under the Company's 2021 equity incentive plan for stock options, stock appreciation rights, restricted stock, restricted stock units ("RSUs") and performance-based awards. Founder Incentive Plan On April 1, 2022, 10,500,000 vested RSUs issued under the Founder Incentive Plan ("FIP") to Scott Mercer and Christopher Wendel (the "Founders") were net-settled into 5,342,874 shares of Class A common stock. See Note 8 - Stock Incentive Plans and Equity Awards - RSUs below for additional information. Stock option activity Stock option activity is as follows: Number of options outstanding Weighted-average exercise price per share Weighted-average remaining contractual life ( in years ) Aggregate intrinsic value (in thousands) Balance at December 31, 2021 11,464,764 2.66 8.3 $ 53,695 Options granted — — — — Options exercised (525,150) 0.71 Options forfeited (1,721,637) 2.40 Options expired (66,204) 1.12 Balance at June 30, 2022 9,151,773 2.69 6.9 $ 1,999 Options vested and exercisable as of December 31, 2021 4,830,158 $ 1.30 7.4 $ 29,176 Options vested and exercisable as of June 30, 2022 5,910,449 $ 1.97 6.0 $ 1,818 The total fair value of options vested during the three months ended June 30, 2022 and 2021 was $2.7 million and $0.6 million, respectively. The total fair value of options vested during the six months ended June 30, 2022 and 2021 was $5.7 million and $5.7 million, respectively. RSUs A summary of RSU activity for the six months ended June 30, 2022 is as follows: Number of shares Service-based Performance-based Market-based Total Weighted-average grant date fair value Balance at December 31, 2021 16,291,266 3,375,000 10,021,743 29,688,009 $ 10.70 RSUs granted 11,692,740 — 111,168 11,803,908 3.19 RSUs vested (10,500,000) — — (10,500,000) 9.30 RSUs forfeited (6,752,737) (3,375,000) (86,464) (10,214,201) 9.90 Balance at June 30, 2022 10,731,269 — 10,046,447 20,777,716 $ 4.18 In accordance with the FIP, the Company granted 10,500,000 RSUs for shares of Class B common stock to the Founders in August 2021. The fair value of those RSUs was measured on the grant date based on the value of the shares on the Closing Date. These awards vested on January 1, 2022, and were settled on April 1, 2022, into an equal number of shares of Class A common stock in accordance with the terms of the Separation Agreements entered into on March 26, 2022 with the Founders, which resulted in the conversion of all Class B common stock held by the former executives into Class A common stock. In settling the RSUs granted under the FIP into Class A shares, the Company performed a net settlement transaction, withholding 2,579,585 and 2,577,541 shares from Mr. Mercer and Mr. Wendel, respectively, for tax withholding purposes, resulting in a net delivery of 2,670,415 and 2,672,459 shares of Class A common stock to Mr. Mercer and Mr. Wendel, respectively. Restricted stock awards There were no restricted stock awards ("RSA") granted during the six months ended June 30, 2022. Stock-based compensation Stock-based compensation expense, net of capitalized amounts, was $6.3 million and $1.3 million for the three months ended June 30, 2022 and 2021, respectively, and $22.8 million and $46.8 million for the six months ended June 30, 2022 and 2021, respectively, and is recorded in selling, general and administrative in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. During the three and six months ended June 30, 2022, the Company capitalized stock-based compensation of $0.4 million related to internal-use software development costs. During the three and six months ended June 30, 2021, the Company did not capitalize any stock-based compensation related to internal-use software development costs. Compensation cost associated with market-based RSUs is recognized over the requisite service period using the accelerated attribution method even if the market condition is never satisfied. For the six months ended June 30, 2022, the Company recognized $9.3 million in compensation costs associated with market-based RSUs. No compensation cost has been or will be recognized for the performance-based RSUs as they were forfeited entirely on March 26, 2022 prior to achievement. As of June 30, 2022, the Company had unrecognized employee stock-based compensation expense of $55.9 million relating to stock options and RSUs of $10.0 million and $45.9 million, respectively, which is expected to be recognized over an estimated weighted-average period of approximately 2.6 years and 2.5 years, respectively. The following weighted-average assumptions were used in calculating fair values of market-based RSUs during the six months ended June 30, 2022: Market-based RSUs Expected dividend yield — % Risk-free interest rate 1.5 % Expected volatility 90.0 % Expected term (in years) 4.6 At the time of stock option grants, the Company had limited historical information to develop reasonable expectations about future exercise patterns and post-vesting employment termination behavior. Therefore, the expected term of options granted is based on the "simplified method" of expected life. There were no options granted during the six months ended June 30, 2022 and therefore no fair value calculations are required. As the Company does not have a trading history for its common stock prior to the Reverse Recapitalization, the expected stock price volatility for the Company’s common stock was estimated by taking the historic stock price volatility for industry peers based on their price observations over a period equivalent to the expected term of the stock option grants. The Company has no history or expectation of paying cash dividends on its common stock. Significant modifications James DeGraw Modification Effective June 2, 2022, James DeGraw resigned as an employee and officer of the Company and, in connection therewith, entered into a settlement and consulting agreement with the Company, dated as of June 2, 2022. In accordance with Mr. DeGraw's settlement and consulting agreement, unvested RSU awards and stock options were modified on the date of termination of Mr. DeGraw's employment to accelerate the vesting in full and to extend the post-termination exercise period upon the condition that Mr. DeGraw serve as a consultant to the Company through the first anniversary of the termination date. With the exception of two option grants held by Mr. DeGraw, all of the stock options had previously been exercised with a partial recourse note which was settled prior to the completion of the Reverse Recapitalization. The unvested portion of those early exercised option grants was also modified to accelerate vesting; the effect of this modification was to release the repurchase right for those early exercised options. The stock option modifications were measured as the excess of the fair value of the modified awards over the fair value of the original awards immediately before the modifications. The fair values immediately after these modifications were determined using the closing price of the Company's common stock on the modification date for the shares already held by Mr. DeGraw through exercise with and settlement of partial recourse notes, which shares were released from the Company's repurchase right under the respective early exercise agreements. Additionally, vested unexercised stock options were modified on the termination date to extend the post-termination exercise period from 90 days to the contractual term of the options. The vested stock option modifications were measured as the excess of the fair value of the modified awards over the fair value of the original awards immediately before the modification determined using a Black-Scholes model. Assumptions used to calculate incremental expense for the modified vested stock options during the six months ended June 30, 2022 were as follows: Six months ended June 30, 2022 Expected dividend yield — % Risk-free interest rate 1.2% - 2.9% Expected volatility 52.4% - 61.9% Expected term (in years) 0.3 - 8.6 The incremental stock-based compensation expense relating to these modifications was recognized in full in the period for Mr. DeGraw’s termination as there is no further substantive service required for the awards to vest. Further, the Company reversed the expense previously recorded for the RSUs in accordance with Accounting Standards Codification ("ASC") Topic 718 as the awards were unvested and effectively forfeited and replaced by new RSUs with no service requirement before the completion of the derived requisite service period of the original awards. There was no previously recorded expense for unvested options. The components of stock-based compensation expense recorded with respect to the modified awards is as follows: (in thousands) Six Months Ended June 30, 2022 Reversal of previously recorded RSU expense $ (605) Incremental expense for modified RSUs 1,018 Incremental expense for modified stock options 804 Total stock-based compensation expense $ 1,217 Scott Mercer and Chris Wendel Modification On March 26, 2022, Scott Mercer and Chris Wendel (the "Executives") resigned from the Company’s board of directors (the “Board”), and Mr. Wendel also resigned as an employee and officer of the Company. Mr. Mercer’s resignation as an employee and officer of the Company was effective as of April 15, 2022. In accordance with the separate settlement and release agreements, dated as of March 26, 2022, between the Company and Mr. Mercer and Mr. Wendel, respectively, unvested RSU awards with market-based vesting conditions, 5,250,000 of which were held by Mr. Mercer and 4,500,000 of which were held by Mr. Wendel, granted on November 15, 2021, were modified on their respective termination dates to eliminate the service requirement (to be an active employee on the date of achievement of the market condition). Additionally, the unvested stock options held by Mr. Mercer as of April 15, 2022 were modified to accelerate the vesting and vest in full on April 15, 2022. Substantially all of the stock options for the Founders had previously been exercised with partial recourse notes which were settled prior to the completion of the Reverse Recapitalization. The unvested portion of those early exercised option grants was also modified to accelerate vesting as of each Founder’s termination date; the effect of this modification was to release the repurchase right for those early exercised options. The stock option and market-based RSU modifications were measured as the excess of the fair value of the modified awards over the fair value of the original awards immediately before the modifications. The fair values immediately after these modifications were determined using a BLM for the market-based RSUs, the Black-Scholes model for the unexercised stock option for Mr. Mercer, and the closing price of the Company's common stock on the modification date for the shares already held by the Founders through exercise with and settlement of partial recourse notes, which shares were released from the Company's repurchase right under the respective early exercise agreements. The incremental stock-based compensation expense relating to these modifications has been recorded in full in the period of each Founder's respective termination as there is no further service requirement from either Founder. Further, the Company has reversed expense previously recorded for the market-based RSUs in accordance with ASC Topic 718 as the awards were unvested and effectively forfeited and replaced by new market-based RSUs with no service requirement before the completion of the derived requisite service period of the original awards. Components of stock-based compensation expense recorded for modified awards is as follows: Six Months Ended June 30, 2022 (in thousands) Chris Wendel Scott Mercer (a) Reversal of previously recorded market-based RSU expense $ (9,879) $ (11,526) Incremental expense for modified market-based RSUs 13,290 15,505 Incremental expense for modified stock options 3,662 3,451 Total stock-based compensation expense $ 7,073 $ 7,430 (a) For Mr. Mercer's stock options, the Company recorded stock-based compensation expense of $0.1 million for the six months ended June 30, 2022 for awards that continued to vest until his termination on April 15, 2022. Assumptions used to calculate incremental expense for the modified market-based RSUs using a Monte Carlo valuation during the six months ended June 30, 2022 were as follows: Six Months Ended June 30, 2022 Expected dividend yield — % Risk-free interest rate 2.5 % Expected volatility 90.0 % Expected term (in years) 4.4 All other outstanding unvested equity awards held by the Founders, consisting of 4,000,000 RSUs granted in the fourth quarter of 2021 and 923,695 RSUs granted in the first quarter of 2022 to Mr. Mercer and 2,750,000 RSUs granted in the fourth quarter of 2021 and 742,972 RSUs granted in the first quarter of 2022 to Mr. Wendel were forfeited as of March 26, 2022. This resulted in the reversal of previously recognized stock-based compensation expense of approximately $0.7 million for Mr. Wendel and $1.0 million for Mr. Mercer related to the grants of RSUs for the three months ended March 31, 2022. The incremental stock-based compensation and reversal of previously recorded stock-based compensation was recorded in selling, general and administrative in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss for the six months ended June 30, 2022.

Net Loss Per Share

Net Loss Per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Net Loss Per Share	Note 9 - Net Loss Per Share The following table presents basic and diluted net loss per share (in thousands, except share and per share amounts): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Numerator: Net loss $ (37,403) $ (31) $ (12,173) $ (8,411) $ (80,986) $ (4,597) $ (47,477) $ (38,278) Denominator: Basic shares (a) : Weighted-average common shares outstanding - basic 167,240,447 140,369 11,192,179 7,733,885 160,477,617 9,109,265 9,592,405 7,733,885 Diluted shares (a) : Weighted-average common shares outstanding - diluted 167,240,447 140,369 11,192,179 7,733,885 160,477,617 9,109,265 9,592,405 7,733,885 Net loss per share attributable to common stockholders: Basic $ (0.22) $ (0.22) $ (1.09) $ (1.09) $ (0.50) $ (0.50) $ (4.95) $ (4.95) Diluted $ (0.22) $ (0.22) $ (1.09) $ (1.09) $ (0.50) $ (0.50) $ (4.95) $ (4.95) (a) As a result of the Reverse Recapitalization, the weighted-average shares of common stock outstanding has been retroactively adjusted by multiplying the exchange ratio of 1.2135 to determine the number of redeemable convertible preferred stock converted to common stock and is included in the basic and diluted net loss per share calculation. The following weighted average shares of the potentially dilutive outstanding securities for the three and six months ended June 30, 2022 and 2021 were excluded from the computation of diluted net loss per share because their effect would have been anti-dilutive given the net loss attributable to common shares. Therefore, the diluted net loss per share is the same as the basic net loss per share for the periods presented. June 30, 2022 June 30, 2021 Anti-dilutive securities: Outstanding stock options 9,151,773 11,654,295 Non plan option grants — 188,767 Convertible preferred stock — 81,215,956 Warrants for common stock 24,328,608 9,974,065 Warrants for preferred stock — 190,210 Options and RSAs exercised under notes receivables — 13,746,080 Unvested RSUs 20,777,716 — Total anti-dilutive securities 54,258,097 116,969,373

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 10 - Commitments and Contingencies Contingencies From time to time, Volta may become involved in actions, claims, suits and other legal proceedings arising in the ordinary course of business, including, but not limited to, assertions by third parties relating to intellectual property infringement, breaches of contract or warranties, or employment-related matters. Shareholder Securities Litigation Two separate putative class actions lawsuits have been filed against the Company, one of the Company’s current officers and one of the Company’s former officers in the United States District Court for the Northern District of California. The actions are: Karoline Kampe v. Volta Inc., Scott Mercer, and Francois P. Chadwick (Case No. 4:22-cv-02055-JST) (the “Kampe Action”), filed on March 30, 2022, and Victor Paul Alvarez v. Volta Inc., Scott Mercer, and Francois P. Chadwick (Case No. 3:22-cv-02730-JSC) (the “Alvarez Action”), filed on May 6, 2022. The complaints in the Kampe Action and the Alvarez Action (collectively, the “Shareholder Securities Lawsuits”) assert similar allegations and, in general, allege that the defendants violated the Securities Exchange Act of 1934 (the "Exchange Act") by making materially false and misleading statements regarding the Company’s business, operations and prospects. The Kampe Action and the Alvarez Action have been transferred to the same judge, who is considering pending motions for appointment of a lead plaintiff and for consolidation. The plaintiff in each Shareholder Securities Lawsuit seeks to represent a class of persons or entities that purchased Volta securities between August 2, 2021 and March 28, 2022 and seeks unspecified damages, attorneys’ fees and other relief. The Company is unable to estimate the potential loss or range of loss, if any, associated with the Shareholder Securities Lawsuits, which could materially and adversely impact its business, results of operations, financial condition, cash flows and prospects. Purchase Commitments In the ordinary course of business, Volta enters into contractual purchase agreements for goods and services to ensure availability and timely delivery. Current purchase commitments reflect Volta's mission and vision to expand its charging network. As of June 30, 2022, Volta had purchase commitments of $1.9 million from key suppliers for capital assets, inventory, and services, for the remainder of 2022. Defined Contribution Plan For the three months ended June 30, 2022 and 2021, the Company contributed $0.4 million and $0.2 million, respectively, to the employee defined contribution plan. For the six months ended June 30, 2022 and 2021, the Company contributed $0.5 million and $0.5 million, respectively, to the employee defined contribution plan. As of June 30, 2022, Volta expects to contribute $0.5 million for the remainder of 2022. Leases The Company is a lessee in several noncancellable operating leases, primarily for office space and the use of spaces for EV charging stations. Future payments of noncancellable operating lease liabilities is as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 8,899 2023 17,905 2024 17,607 2025 16,096 2026 15,057 Thereafter 54,725 Total future payments 130,289 Less imputed interest (41,313) Total lease liabilities $ 88,976 As of June 30, 2022, there are additional operating leases that have not yet commenced of $11.2 million. These operating leases are expected to commence between 2022 and 2025 with lease terms of four

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income taxes	Note 11 - Income Taxes There is no provision for income taxes because the Company has incurred operating losses since inception and has projected losses for the current year. The Company’s effective income tax rate was 0.0% for both the three and six months ended June 30, 2022 and 2021, and the realization of any deferred tax assets does not satisfy the "more likely than not" threshold. As of June 30, 2022 and December 31, 2021, the Company recorded a $2.0 million uncertain tax position related to deferred revenue.

Related Party transactions

Related Party transactions	6 Months Ended
	Jun. 30, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Note 12 - Related Party Transactions As of December 31, 2021, the Company had partial recourse promissory notes due from two former executives totaling $0.2 million. During the three months ended June 30, 2022, amounts due from these former executives were settled by way of forfeiture of 71,454 shares valued at $0.2 million with an immaterial balance forgiven.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	Note 13 - Subsequent Events The Company has evaluated events subsequent to June 30, 2022 and through the date the financials are made available. The following events occurring subsequent to the unaudited condensed consolidated balance sheet date merited recognition or disclosure in these statements. Shareholder Derivative Litigation Five purported shareholders have filed, on behalf of the Company, separate shareholder derivative actions against the Company’s current directors and certain current and former officers and directors of the Company in the United States District Court for the Northern District of California or, in the case of the Edwards Derivative Action (as defined below), the United States District Court for the District of Delaware. The Company has also been named as a nominal defendant in each action. The purported shareholder derivative actions are: Hugues Gervat v. Scott Mercer, Francois P. Chadwick, Christopher Wendel, Eli Aheto, Vincent T. Cubbage, Martin Lauber, Katherine J. Savitt, Bonita C. Stewart, and John J. Tough (Case No. 3:22-cv-04036) (the “Gervat Derivative Action”), filed on July 9, 2022; Tom Heil v. Eli Aheto, Christopher Wendel, Vincent T. Cubbage, Martin Lauber, Katherine J. Savitt, Bonita C. Stewart, John J. Tough, Scott Mercer and Francois P. Chadwick (Case No. 3:22-cv-04239) (the “Heil Derivative Action”), filed on July 21, 2022; Todd Eddy v. Scott Mercer, Francois P. Chadwick, Christopher Wendel, Eli Aheto, Vincent T. Cubbage, Martin Lauber, Katherine J. Savitt, Bonita C. Stewart, and John J. Tough (Case No. 3:22-cv-04342) (the “Eddy Derivative Action”), filed on July 27, 2022; Robert Gennett v. Scott Mercer, Francois P. Chadwick, Christopher Wendel, Eli Aheto, Vincent T. Cubbage, Martin Lauber, Katherine J. Savitt, Bonita C. Stewart, and John J. Tough (Case No. 4:22-cv-04450) (the “Gennett Derivative Action”), filed on August 1, 2022; and LaDreana Edwards v. Scott Mercer, Francois P. Chadwick, Christopher Wendel, Eli Aheto, Vincent T. Cubbage, Martin Lauber, Katherine J. Savitt, Bonita C. Stewart, and John J. Tough (Case No. 1:22-cv-01021-UNA) (the “Edwards Derivative Action” and, together with the Gervat, Heil, Eddy and Gennett Derivative Actions, the “Derivative Actions”), filed on August 1, 2022. The complaints in the Derivative Actions assert similar claims on behalf of the Company against the individual defendants for alleged breach of fiduciary duty and, except in the Gennett Derivative Action, unjust enrichment, abuse of control and waste of corporate assets (except that the complaint in the Edwards Derivative Action asserts no claim of abuse of control against any individual defendant and the claim of unjust enrichment asserted therein is solely against Messrs. Mercer and Wendel) in connection with the alleged materially false and misleading statements at issue in the Shareholder Securities Lawsuits. In addition, the Gervat, Heil, Gennett and Edwards Derivative Actions assert claims against individual defendants Scott Mercer and Francois Chadwick for contribution under Sections 10(b) and 21D of the Securities Exchange Act of 1934, and the Eddy Derivative Action asserts a claim against the individual defendants under Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder. The complaints in the Gervat and Gennett Derivative Actions also seek to require the individual defendants and the Company to take all necessary actions to reform and improve the Company's corporate governance and internal procedures to comply with applicable law. The Company is unable to estimate the potential loss or range of loss, if any, associated with the Derivative Actions, which could materially and adversely impact its business, results of operations, financial condition, cash flows and prospects.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Basis of presentation	The accompanying unaudited condensed consolidated financial statements include the accounts of Volta and its wholly-owned subsidiaries and have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements.
Consolidation	The unaudited condensed consolidated financial statements and the accompanying notes have been prepared on the same basis as the annual consolidated financial statements and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results of operations for the periods presented.
Reclassifications	Certain prior period amounts have been reclassified to conform to current period presentation. These reclassifications have no effect on previously reported results of operations or loss per share.
Concentration of risk	The Company mitigates concentration risk by maintaining contracts and agreements with alternative suppliers and is actively expanding its supplier network.
COVID-19 and supply chain impact	There continues to be widespread impact from the COVID-19 pandemic and the impact of the COVID-19 outbreak on the Company’s financial position will depend on future developments, including the duration and spread of the outbreak and related advisories and restrictions. These developments and the impact of the COVID-19 outbreak on the financial markets, the global supply chain and the overall economy are highly uncertain and cannot be predicted. If the financial markets and/or the overall economy are impacted for an extended period, the Company’s financial position may be materially adversely affected. We have experienced and are experiencing varying levels of inflation resulting in part from various supply chain disruptions, increased shipping and transportation costs, increased raw material and labor costs and other disruptions caused by the COVID-19 pandemic and general global economic conditions. We continue to monitor the ongoing and dynamic impacts of COVID-19, as well as guidance from federal, state and local public health authorities.
Recent accounting pronouncements	Recently issued accounting pronouncements not yet adopted In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which was subsequently amended by ASU No. 2018-19, ASU No. 2019-04, ASU No. 2019-05, ASU No. 2019-10, ASU 2019-11, and ASU 2022-02. The guidance amended reporting requirements for credit losses for assets held at amortized cost basis and available-for-sale debt securities. For available-for-sale debt securities, credit losses will be presented as an allowance rather than as a write-down. In addition, the length of time a security has been in an unrealized loss position will no longer impact the determination of whether a credit loss exists. ASU 2016-13, as subsequently amended for various technical issues, is effective for smaller reporting companies following private company adoption dates for fiscal years beginning after December 15, 2022, and for interim periods within those fiscal years. If the Company were to lose smaller reporting company status during 2022,

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule of disaggregation of revenue	The Company disaggregates revenue by major category, as shown below, based on what it believes are the primary economic factors that impact the nature, amount, timing, and uncertainty of revenue and cash flows from these customer contracts. Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Media $ 11,221 $ 6,485 $ 17,339 $ 10,014 Network development 3,577 340 5,791 1,341 Charging network operations 370 1 371 1 Network intelligence 176 117 229 327 Total operating revenue $ 15,344 $ 6,943 $ 23,730 $ 11,683

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of financial instruments measured at fair value	The following tables present information about the Company’s liabilities that are measured at fair value on a recurring basis. (in thousands) Carrying Amount Total Level 1 Level 2 Level 3 June 30, 2022 Term loan $ 31,996 $ 32,429 $ — $ 32,429 $ — Public warrants 2,500 2,500 2,500 — — Private warrants 1,721 1,721 — — 1,721 Total $ 36,217 $ 36,650 $ 2,500 $ 32,429 $ 1,721 December 31, 2021 Term loan $ 39,995 $ 41,242 $ — $ 41,242 $ — Public warrants 16,036 16,036 16,036 — — Private warrants 11,036 11,036 — — 11,036 Total $ 67,067 $ 68,314 $ 16,036 $ 41,242 $ 11,036
Schedule of fair value measurement inputs and valuation techniques	The following table provides quantitative information regarding Level 3 Private Warrants fair value measurements inputs at their measurement dates: June 30, 2022 December 31, 2021 Expected dividend yield — % — % Risk-free interest rate 2.4 % 1.2 % Expected volatility 215.0 % 132.5 % Expected term (in years) 4.2 4.5
Schedule of derivative liabilities at fair value	The changes in the fair value of the Private Warrants were as follows: (in thousands) Amount Balance at December 31, 2021 $ 11,036 Decrease in fair value of Private Warrants (9,315) Balance at June 30, 2022 $ 1,721 Balance at December 31, 2020 $ 698 Decrease in fair value of Private Warrants (118) Balance at June 30, 2021 $ 580

Condensed Consolidated Financ_2

Condensed Consolidated Financial Statement Details (Tables)	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of property and equipment	Property and equipment, net: (in thousands) June 30, 2022 December 31, 2021 Charging stations and digital media screens $ 114,751 $ 79,104 Construction in progress: stations 67,919 33,434 Capitalized research and development equipment 2,176 2,689 Development in progress: software 3,756 — Computer and office equipment 1,726 1,545 Leasehold improvements 1,848 856 Capitalized software 888 888 Furniture 229 229 Other fixed assets 4,214 3,736 Total property and equipment 197,507 122,481 Less: accumulated depreciation and amortization (31,190) (24,753) Property and equipment, net $ 166,317 $ 97,728
Schedule of finite-lived intangible assets	Intangible assets, net: June 30, 2022 December 31, 2021 (in thousands) Cost Accumulated Amortization Net Cost Accumulated Amortization Net Patent $ 1,244 $ — $ 1,244 $ — $ — $ — Intellectual property 1,200 953 247 1,200 557 643 $ 2,444 $ 953 $ 1,491 $ 1,200 $ 557 $ 643
Schedule of depreciation and amortization	Depreciation and amortization: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Depreciation $ 4,418 $ 2,370 $ 7,915 $ 4,543 Intangible amortization 199 153 397 153 Total depreciation and amortization $ 4,617 $ 2,523 $ 8,312 $ 4,696
Schedule of future amortization expense for intangible assets	Estimated future amortization expense for intangible assets is as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 316 2023 138 2024 138 2025 138 2026 138 Thereafter 623 Total $ 1,491
Schedule of accrued expenses and other current liabilities	Accrued expenses and other current liabilities: (in thousands) June 30, 2022 December 31, 2021 Charging station expenses $ 12,524 $ 5,393 Employee related expenses 6,238 9,239 Lease incentive liability 1,947 2,354 Severance 1,574 — Accrued interest — 1,294 Deposit liability — 850 Other 1,018 1,038 Total accrued expenses and other current liabilities $ 23,301 $ 20,168
Schedule of supplemental cash flows information	The following tables provide details of selected cash flow information: Changes in operating assets and liabilities: Six Months Ended June 30, (in thousands) 2022 2021 Accounts receivable $ (6,266) $ (2,033) Inventory 381 1,151 Prepaid expenses and other current assets (249) (7,268) Prepaid partnership costs (1,324) (726) Operating lease right-of-use assets (22,453) (7,217) Other noncurrent assets (106) 9 Accounts payable (2,752) 3,471 Accrued expenses and other current liabilities 2,160 (7,127) Accrued interest (1,294) (1,391) Deferred revenue 3,431 (401) Operating lease liability 18,603 6,008 Other noncurrent liabilities 4,956 300 Total change in operating assets and liabilities: $ (4,913) $ (15,224) Supplemental disclosures of cash flow information: Six Months Ended June 30, (in thousands) 2022 2021 Cash paid for interest $ 3,637 $ 3,070 Cash paid for taxes $ — $ 24 Non-cash investing and financing activities: Six Months Ended June 30, (in thousands) 2022 2021 Purchases of property and equipment not yet settled $ 24,789 $ 11,810 Initial recognition of operating lease right-of-use asset $ 22,682 $ 7,298 Initial recognition of operating lease liability $ 22,205 $ 6,934 Common stock issued for acquisition of 2Predict $ — $ 1,221 Issuance of common stock for patent acquisition $ 369 $ — Stock-based compensation capitalized to internal-use software $ 394 $ —

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Schedule of long-term debt	Outstanding debt is as follows: (in thousands) June 30, 2022 December 31, 2021 Term loan payable (a) (b) $ 32,666 $ 40,833 Less: term loan - current portion (15,998) (15,998) Less: unamortized debt issuance costs (670) (838) Term loan payable - noncurrent portion $ 15,998 $ 23,997 (a) The term loan bears interest on the total outstanding balance at 12.0% per annum and is secured by certain qualifying assets of the Company. Principal payments are due in equal monthly installments beginning on July 1, 2021 and matures on June 19, 2024. (b) Accrued interest on the term loan payable was $0.0 million and $1.3 million at June 30, 2022 and December 31, 2021, respectively.
Schedule of maturities of long-term debt	Future payments for the term loan are as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 8,167 2023 16,333 2024 8,166 Total $ 32,666

Stock Incentive Plans and Equ_2

Stock Incentive Plans and Equity Awards (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Schedule of common stock, capital shares reserved for future issuance	Shares reserved for issuance The Company has the following shares of common stock reserved for issuance, on an as-if converted basis: June 30, 2022 December 31, 2021 Shares available for grant – 2021 Equity incentive plan 22,116,450 14,357,382 Unvested restricted stock units 20,777,716 29,688,046 Legacy Volta Class A common stock warrants 9,773,835 9,773,835 Options outstanding 9,151,773 11,464,745 Outstanding Public Warrants 8,621,440 8,621,440 Outstanding Private Warrants 5,933,333 5,933,333 Shares available for purchase - 2021 ESPP plan 3,715,944 3,715,944 Total shares of common stock reserved 80,090,491 83,554,725
Schedule of option award activity	Stock option activity is as follows: Number of options outstanding Weighted-average exercise price per share Weighted-average remaining contractual life ( in years ) Aggregate intrinsic value (in thousands) Balance at December 31, 2021 11,464,764 2.66 8.3 $ 53,695 Options granted — — — — Options exercised (525,150) 0.71 Options forfeited (1,721,637) 2.40 Options expired (66,204) 1.12 Balance at June 30, 2022 9,151,773 2.69 6.9 $ 1,999 Options vested and exercisable as of December 31, 2021 4,830,158 $ 1.30 7.4 $ 29,176 Options vested and exercisable as of June 30, 2022 5,910,449 $ 1.97 6.0 $ 1,818
Schedule of restricted stock unit activity	A summary of RSU activity for the six months ended June 30, 2022 is as follows: Number of shares Service-based Performance-based Market-based Total Weighted-average grant date fair value Balance at December 31, 2021 16,291,266 3,375,000 10,021,743 29,688,009 $ 10.70 RSUs granted 11,692,740 — 111,168 11,803,908 3.19 RSUs vested (10,500,000) — — (10,500,000) 9.30 RSUs forfeited (6,752,737) (3,375,000) (86,464) (10,214,201) 9.90 Balance at June 30, 2022 10,731,269 — 10,046,447 20,777,716 $ 4.18
Schedule of share-based payment award, stock options, valuation assumptions	The following weighted-average assumptions were used in calculating fair values of market-based RSUs during the six months ended June 30, 2022: Market-based RSUs Expected dividend yield — % Risk-free interest rate 1.5 % Expected volatility 90.0 % Expected term (in years) 4.6 Six months ended June 30, 2022 Expected dividend yield — % Risk-free interest rate 1.2% - 2.9% Expected volatility 52.4% - 61.9% Expected term (in years) 0.3 - 8.6 Assumptions used to calculate incremental expense for the modified market-based RSUs using a Monte Carlo valuation during the six months ended June 30, 2022 were as follows: Six Months Ended June 30, 2022 Expected dividend yield — % Risk-free interest rate 2.5 % Expected volatility 90.0 % Expected term (in years) 4.4
Schedule of stock-based compensation expense	The components of stock-based compensation expense recorded with respect to the modified awards is as follows: (in thousands) Six Months Ended June 30, 2022 Reversal of previously recorded RSU expense $ (605) Incremental expense for modified RSUs 1,018 Incremental expense for modified stock options 804 Total stock-based compensation expense $ 1,217 Components of stock-based compensation expense recorded for modified awards is as follows: Six Months Ended June 30, 2022 (in thousands) Chris Wendel Scott Mercer (a) Reversal of previously recorded market-based RSU expense $ (9,879) $ (11,526) Incremental expense for modified market-based RSUs 13,290 15,505 Incremental expense for modified stock options 3,662 3,451 Total stock-based compensation expense $ 7,073 $ 7,430 (a) For Mr. Mercer's stock options, the Company recorded stock-based compensation expense of $0.1 million for the six months ended June 30, 2022 for awards that continued to vest until his termination on April 15, 2022.

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Schedule of earnings per share, basic and diluted	The following table presents basic and diluted net loss per share (in thousands, except share and per share amounts): Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Class A Common Shares Class B Common Shares Numerator: Net loss $ (37,403) $ (31) $ (12,173) $ (8,411) $ (80,986) $ (4,597) $ (47,477) $ (38,278) Denominator: Basic shares (a) : Weighted-average common shares outstanding - basic 167,240,447 140,369 11,192,179 7,733,885 160,477,617 9,109,265 9,592,405 7,733,885 Diluted shares (a) : Weighted-average common shares outstanding - diluted 167,240,447 140,369 11,192,179 7,733,885 160,477,617 9,109,265 9,592,405 7,733,885 Net loss per share attributable to common stockholders: Basic $ (0.22) $ (0.22) $ (1.09) $ (1.09) $ (0.50) $ (0.50) $ (4.95) $ (4.95) Diluted $ (0.22) $ (0.22) $ (1.09) $ (1.09) $ (0.50) $ (0.50) $ (4.95) $ (4.95) (a) As a result of the Reverse Recapitalization, the weighted-average shares of common stock outstanding has been retroactively adjusted by multiplying the exchange ratio of 1.2135 to determine the number of redeemable convertible preferred stock converted to common stock and is included in the basic and diluted net loss per share calculation.
Schedule of antidilutive securities excluded from computation of earnings per share	The following weighted average shares of the potentially dilutive outstanding securities for the three and six months ended June 30, 2022 and 2021 were excluded from the computation of diluted net loss per share because their effect would have been anti-dilutive given the net loss attributable to common shares. Therefore, the diluted net loss per share is the same as the basic net loss per share for the periods presented. June 30, 2022 June 30, 2021 Anti-dilutive securities: Outstanding stock options 9,151,773 11,654,295 Non plan option grants — 188,767 Convertible preferred stock — 81,215,956 Warrants for common stock 24,328,608 9,974,065 Warrants for preferred stock — 190,210 Options and RSAs exercised under notes receivables — 13,746,080 Unvested RSUs 20,777,716 — Total anti-dilutive securities 54,258,097 116,969,373

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of maturity of operating lease liability	The Company is a lessee in several noncancellable operating leases, primarily for office space and the use of spaces for EV charging stations. Future payments of noncancellable operating lease liabilities is as follows: (in thousands) June 30, 2022 Remainder of 2022 $ 8,899 2023 17,905 2024 17,607 2025 16,096 2026 15,057 Thereafter 54,725 Total future payments 130,289 Less imputed interest (41,313) Total lease liabilities $ 88,976

Description of Business (Detail

Description of Business (Details)	Aug. 26, 2021 $ / shares
Legacy Volta Class A common stock warrants
Class of Warrant or Right [Line Items]
Trading price (in dollars per share)	$ 11.50

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Concentration of risk (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Customer Concentration Risk | Accounts Receivable | Customer One
Concentration Risk [Line Items]
Concentration risk, percentage			19.80%		18.70%
Customer Concentration Risk | Accounts Receivable | Customer Two
Concentration Risk [Line Items]
Concentration risk, percentage			18.20%		22%
Customer Concentration Risk | Accounts Receivable | Customer Three
Concentration Risk [Line Items]
Concentration risk, percentage					30.50%
Customer Concentration Risk | Revenue from Contract with Customer | Customer One
Concentration Risk [Line Items]
Concentration risk, percentage	22.60%	24%	23.70%	21.50%
Customer Concentration Risk | Revenue from Contract with Customer | Customer Two
Concentration Risk [Line Items]
Concentration risk, percentage	17.70%	23.20%	16.10%	14.30%
Customer Concentration Risk | Revenue from Contract with Customer | Customer Three
Concentration Risk [Line Items]
Concentration risk, percentage	10%	10.40%		12%
Customer Concentration Risk | Revenue from Contract with Customer | Customer Four
Concentration Risk [Line Items]
Concentration risk, percentage				11.40%
Supplier Concentration Risk | Accounts Payable | Supplier One
Concentration Risk [Line Items]
Concentration risk, percentage			0%		0%

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Liquidity concern (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2019
Debt Instrument [Line Items]
Term loan payable, net of unamortized issuance costs - current	$ 15,998	$ 15,998
Term loan payable | Secured Debt
Debt Instrument [Line Items]
Term loan payable	32,666	40,833
Interest rate, possible increase			3%
Term loan payable, net of unamortized issuance costs - current	15,998	$ 15,998
Term loan payable | Secured Debt | If Additional Capital is not Raised in Future Periods
Debt Instrument [Line Items]
Term loan payable, net of unamortized issuance costs - current	$ 16,300

Revenue - Schedule of disaggreg

Revenue - Schedule of disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total operating revenue	$ 15,344	$ 6,943	$ 23,730	$ 11,683
Media
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total operating revenue	11,221	6,485	17,339	10,014
Network development
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total operating revenue	3,577	340	5,791	1,341
Charging network operations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total operating revenue	370	1	371	1
Network intelligence
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total operating revenue	$ 176	$ 117	$ 229	$ 327

Revenue - Additional informatio

Revenue - Additional information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Decrease in payables to customers	$ (25,000)	$ (10,600)	$ (300,000)	$ (200,000)
Remaining performance obligation, amount	$ 31,500,000		$ 31,500,000		$ 31,400,000
Percent of remaining performance obligations to be recognized as revenues next twelve months	47.80%		47.80%
Revenue recognized	$ 3,300,000	$ 200,000	$ 5,300,000	$ 1,000,000
Contract with customer, liability	13,700,000		13,700,000
Deferred revenue	12,571,000		12,571,000		8,450,000
Unbilled receivables	$ 3,300,000		$ 3,300,000		$ 800,000

Fair Value Measurements - Deriv

Fair Value Measurements - Derivative instruments at fair value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	$ 1,721	$ 11,036	$ 580	$ 698
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,500	16,036
Level 1 | Public warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,500	16,036
Level 1 | Private warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 1 | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	32,429	41,242
Level 2 | Public warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2 | Private warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2 | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	32,429	41,242
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,721	11,036
Level 3 | Public warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 3 | Private warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,721	11,036
Level 3 | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	36,217	67,067
Carrying Amount | Public warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,500	16,036
Carrying Amount | Private warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,721	11,036
Carrying Amount | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	31,996	39,995
Total
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	36,650	68,314
Total | Public warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,500	16,036
Total | Private warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,721	11,036
Total | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	$ 32,429	$ 41,242

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative information (Details) - Level 3	Jun. 30, 2022	Dec. 31, 2021
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0	0
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.024	0.012
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	2.150	1.325
Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected term (in years)	4 years 2 months 12 days	4 years 6 months

Fair Value Measurements - Addit

Fair Value Measurements - Additional information (Details)	Jun. 30, 2022 $ / shares
Public warrants
Class of Warrant or Right [Line Items]
Trading price (in dollars per share)	$ 0.29

Fair value Measurements - Chang

Fair value Measurements - Changes in fair value (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Changes In Fair Value Of Warrant Liabilities [Roll Forward]
Beginning balance	$ 11,036	$ 698
Decrease in fair value of private warrants	(9,315)	(118)
Ending balance	$ 1,721	$ 580

Condensed Consolidated Financ_3

Condensed Consolidated Financial Statement - Schedule of property and equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 197,507	$ 122,481
Less: accumulated depreciation and amortization	(31,190)	(24,753)
Property and equipment, net	166,317	97,728
Charging stations and digital media screens
Property, Plant and Equipment [Line Items]
Total property and equipment	114,751	79,104
Construction in progress: stations
Property, Plant and Equipment [Line Items]
Total property and equipment	67,919	33,434
Capitalized research and development equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	2,176	2,689
Development in progress: software
Property, Plant and Equipment [Line Items]
Total property and equipment	3,756	0
Computer and office equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,726	1,545
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	1,848	856
Capitalized software
Property, Plant and Equipment [Line Items]
Total property and equipment	888	888
Furniture
Property, Plant and Equipment [Line Items]
Total property and equipment	229	229
Other fixed assets
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 4,214	$ 3,736

Condensed Consolidated Financ_4

Condensed Consolidated Financial Statement - Additional information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Patent
Property, Plant and Equipment [Line Items]
Intangible assets acquired	$ 1.2
Definite-lived intangible asset, useful life				9 years
Construction in progress: stations
Property, Plant and Equipment [Line Items]
Other cost and expense		$ 2	$ 0.7	$ 2.4	$ 0.9

Condensed Consolidated Financ_5

Condensed Consolidated Financial Statement - Schedule of finite-lived intangible assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Cost	$ 2,444	$ 1,200
Accumulated Amortization	953	557
Total	1,491	643
Patent
Finite-Lived Intangible Assets [Line Items]
Cost	1,244	0
Accumulated Amortization	0	0
Total	1,244	0
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Cost	1,200	1,200
Accumulated Amortization	953	557
Total	$ 247	$ 643

Condensed Consolidated Financ_6

Condensed Consolidated Financial Statement - Schedule of depreciation and amortization (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Depreciation	$ 4,418	$ 2,370	$ 7,915	$ 4,543
Intangible amortization	199	153	397	153
Total depreciation and amortization	$ 4,617	$ 2,523	$ 8,312	$ 4,696

Condensed Consolidated Financ_7

Condensed Consolidated Financial Statement - Schedule of future amortization expense for intangible assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Remainder of 2022	$ 316
2023	138
2024	138
2025	138
2026	138
Thereafter	623
Total	$ 1,491	$ 643

Condensed Consolidated Financ_8

Condensed Consolidated Financial Statement - Schedule of accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Charging station expenses	$ 12,524	$ 5,393
Employee related expenses	6,238	9,239
Lease incentive liability	1,947	2,354
Severance	1,574	0
Accrued interest	0	1,294
Deposit liability	0	850
Other	1,018	1,038
Accrued expenses and other current liabilities	$ 23,301	$ 20,168

Condensed Consolidated Financ_9

Condensed Consolidated Financial Statement - Schedule of supplemental cash flows information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts receivable			$ (6,266,000)	$ (2,033,000)
Inventory			381,000	1,151,000
Prepaid expenses and other current assets			(249,000)	(7,268,000)
Prepaid partnership costs			(1,324,000)	(726,000)
Operating lease right-of-use assets			(22,453,000)	(7,217,000)
Other noncurrent assets			(106,000)	9,000
Accounts payable			(2,752,000)	3,471,000
Accrued expenses and other current liabilities			2,160,000	(7,127,000)
Accrued interest			(1,294,000)	(1,391,000)
Deferred revenue			3,431,000	(401,000)
Operating lease liability			18,603,000	6,008,000
Other noncurrent liabilities			4,956,000	300,000
Total change in operating assets and liabilities:			4,913,000	15,224,000
Cash paid for interest			3,637,000	3,070,000
Cash paid for taxes			0	24,000
Purchases of property and equipment not yet settled			24,789,000	11,810,000
Initial recognition of operating lease right-of-use asset			22,682,000	7,298,000
Initial recognition of operating lease liability			22,205,000	6,934,000
Stock-based compensation capitalized to internal-use software			394,000	0
Business Acquisition [Line Items]
Issuance of common stock for acquisition	$ 369,000	$ 1,220,000	369,000	1,220,000
2Predict, Inc.
Business Acquisition [Line Items]
Issuance of common stock for acquisition			0	1,221,000
Patent
Business Acquisition [Line Items]
Issuance of common stock for acquisition			$ 369,000	$ 0

Debt - Schedule of long-term de

Debt - Schedule of long-term debt (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Less: term loan - current portion	$ (15,998)	$ (15,998)
Term loan payable, net of unamortized issuance costs and current term loan payable	15,998	23,997
Term loan payable | Secured Debt
Debt Instrument [Line Items]
Term loan payable	32,666	40,833
Less: term loan - current portion	(15,998)	(15,998)
Less: unamortized debt issuance costs	(670)	(838)
Term loan payable, net of unamortized issuance costs and current term loan payable	$ 15,998	23,997
Interest rate	12%
Accrued interest	$ 0	$ 1,300

Debt - Additional information (

Debt - Additional information (Details) - USD ($)	1 Months Ended	6 Months Ended
	May 31, 2022	Jun. 30, 2022	Jun. 30, 2019
Debt Instrument [Line Items]
Required deposits	$ 3,300,000
Maximum
Debt Instrument [Line Items]
Funds held in escrow as percent of investments in foreign subsidiaries	125%
Term loan payable | Secured Debt
Debt Instrument [Line Items]
Face amount of debt			$ 49,000,000
Repayments of debt		$ 8,200,000
Interest rate, possible increase			3%

Debt - Schedule of maturities o

Debt - Schedule of maturities of long-term debt (Details) - Term loan payable - Secured Debt - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Remainder of 2022	$ 8,167
2023	16,333
2024	8,166
Total	$ 32,666	$ 40,833

Warrants (Details)

Warrants (Details) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Class of Warrant or Right [Line Items]
Warrants exercised (in shares)	0	0
Legacy Volta Class A common stock warrants | Legacy Volta
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	9,773,835	9,773,835	9,773,835
Private warrants
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	5,933,333	5,933,333	5,933,333
Public warrants
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	8,621,440	8,621,440	8,621,440

Stock Incentive Plans and Equ_3

Stock Incentive Plans and Equity Awards - Shares reserved for issuance (Details) - shares	Jun. 30, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	80,090,491	83,554,725
Options outstanding
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	9,151,773	11,464,745
Unvested RSUs
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	20,777,716	29,688,046
Legacy Volta Class A common stock warrants
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	9,773,835	9,773,835
Outstanding Public Warrants
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	8,621,440	8,621,440
Outstanding Private Warrants
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	5,933,333	5,933,333
Shares available for grant – 2021 Equity incentive plan
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	22,116,450	14,357,382
Shares available for purchase - 2021 ESPP plan
Class of Stock [Line Items]
Shares reserved for issuance (in shares)	3,715,944	3,715,944

Stock Incentive Plans and Equ_4

Stock Incentive Plans and Equity Awards - Shares reserved for issuance - Narrative (Details) - shares		3 Months Ended	6 Months Ended
	Apr. 01, 2022	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share purchases, employee stock purchase plan (in shares)		0	0
Shares reserved for issuance (in shares)		80,090,491	80,090,491	83,554,725
Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Issuance of common stock upon the settlement of vested restricted stock units, net of shares withheld for taxes (in shares)	5,342,874	5,343,000	5,343,000
Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grants in period (in shares)			11,803,908
Vested in period (in shares)			10,500,000
The Founders | Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grants in period (in shares)	10,500,000		10,500,000
Vested in period (in shares)	10,500,000
Shares available for grant – 2021 Equity incentive plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares reserved for issuance (in shares)		22,116,450	22,116,450	14,357,382

Stock Incentive Plans and Equ_5

Stock Incentive Plans and Equity Awards - Option reward activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Number of options outstanding
Beginning balance (in shares) | shares	11,464,764
Options granted (in shares) | shares	0
Options exercised (in shares) | shares	(525,150)
Options forfeited (in shares) | shares	(1,721,637)
Options expired (in shares) | shares	(66,204)
Ending balance (in shares) | shares	9,151,773	11,464,764
Weighted-average exercise price per share
Beginning balance (in dollars per share) | $ / shares	$ 2.66
Options granted (in dollars per share) | $ / shares	0
Options exercised (in dollars per share) | $ / shares	0.71
Options forfeited (in dollars per share) | $ / shares	2.40
Options expired (in dollars per share) | $ / shares	1.12
Ending balance (in dollars per share) | $ / shares	$ 2.69	$ 2.66
Weighted-average remaining contractual life (years)	6 years 10 months 24 days	8 years 3 months 18 days
Aggregate intrinsic value | $	$ 1,999	$ 53,695
Options vested, Number of options outstanding (in shares) | shares	5,910,449	4,830,158
Options exercisable, Number of options outstanding (in shares) | shares	5,910,449	4,830,158
Options vested, Weighted-average exercise price per share (in dollars per share) | $ / shares	$ 1.97	$ 1.30
Options exercisable, Weighted-average exercise price per share (in dollars per share) | $ / shares	$ 1.97	$ 1.30
Options vested, Weighted-average remaining contractual life (years)	6 years	7 years 4 months 24 days
Options exercisable, Weighted-average remaining contractual life (years)	6 years	7 years 4 months 24 days
Options vested, Aggregate intrinsic value | $	$ 1,818	$ 29,176
Options exercisable, Aggregate intrinsic value | $	$ 1,818	$ 29,176

Stock Incentive Plans and Equ_6

Stock Incentive Plans and Equity Awards - Stock option activity - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Employees
Class of Stock [Line Items]
Total fair value of options vested	$ 2.7	$ 0.6	$ 5.7	$ 5.7

Stock Incentive Plans and Equ_7

Stock Incentive Plans and Equity Awards - Restricted stock units activity (Details)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Restricted Stock Units
Number of shares
Beginning balance (in shares)	29,688,009
RSUs Granted (in shares)	11,803,908
RSUs vested (in shares)	(10,500,000)
RSUs forfeited (in shares)	(10,214,201)
Ending balance (in shares)	20,777,716
Weighted-average grant date fair value
Beginning balance (in dollars per share) | $ / shares	$ 10.70
RSUs granted (in dollars per share) | $ / shares	3.19
RSUs vested (in dollars per share) | $ / shares	9.30
RSUs forfeited (in dollars per share) | $ / shares	9.90
Ending balance (in dollars per share) | $ / shares	$ 4.18
Service-based
Number of shares
Beginning balance (in shares)	16,291,266
RSUs Granted (in shares)	11,692,740
RSUs vested (in shares)	(10,500,000)
RSUs forfeited (in shares)	(6,752,737)
Ending balance (in shares)	10,731,269
Performance-based
Number of shares
Beginning balance (in shares)	3,375,000
RSUs Granted (in shares)	0
RSUs vested (in shares)	0
RSUs forfeited (in shares)	(3,375,000)
Ending balance (in shares)	0
Market-based
Number of shares
Beginning balance (in shares)	10,021,743
RSUs Granted (in shares)	111,168
RSUs vested (in shares)	0
RSUs forfeited (in shares)	(86,464)
Ending balance (in shares)	10,046,447
Restricted Stock
Number of shares
RSUs Granted (in shares)	0

Stock Incentive Plans and Equ_8

Stock Incentive Plans and Equity Awards - Restricted stock units - Narrative (Details) - shares		3 Months Ended		6 Months Ended
	Apr. 01, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2022
Mr. Mercer
Class of Stock [Line Items]
Shares withheld for tax withholding obligation (in shares)				2,579,585
Mr. Mercer | Class A Common Stock
Class of Stock [Line Items]
Grants in period (in shares)				2,670,415
Mr. Wendel
Class of Stock [Line Items]
Shares withheld for tax withholding obligation (in shares)				2,577,541
Mr. Wendel | Class A Common Stock
Class of Stock [Line Items]
Grants in period (in shares)				2,672,459
Restricted Stock Units
Class of Stock [Line Items]
Grants in period (in shares)				11,803,908
Restricted Stock Units | The Founders
Class of Stock [Line Items]
Grants in period (in shares)	10,500,000			10,500,000
Restricted Stock Units | Mr. Mercer
Class of Stock [Line Items]
Grants in period (in shares)		923,695	4,000,000
Restricted Stock Units | Mr. Wendel
Class of Stock [Line Items]
Grants in period (in shares)		742,972	2,750,000

Stock Incentive Plans and Equ_9

Stock Incentive Plans and Equity Awards - Stock-based compensation and expense - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Stock [Line Items]
Total stock-based compensation expense	$ 6,300,000	$ 1,300,000	$ 22,800,000	$ 46,800,000
Amount capitalized			394,000	$ 0
Total unrecognized compensation cost	55,900,000		$ 55,900,000
Options granted (in shares)			0
Computer and office equipment
Class of Stock [Line Items]
Amount capitalized	400,000		$ 400,000
Market-based
Class of Stock [Line Items]
Total stock-based compensation expense			9,300,000
Performance-based
Class of Stock [Line Items]
Total stock-based compensation expense	0
ESPP
Class of Stock [Line Items]
Total unrecognized compensation cost	10,000,000		$ 10,000,000
Weighted-average period of total unrecognized compensation cost, in years			2 years 7 months 6 days
Restricted Stock Units
Class of Stock [Line Items]
Total unrecognized compensation cost	$ 45,900,000		$ 45,900,000
Weighted-average period of total unrecognized compensation cost, in years			2 years 6 months

Stock Incentive Plans and Eq_10

Stock Incentive Plans and Equity Awards - Schedule of significant modifications (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Stock [Line Items]
Total stock-based compensation expense	$ 6,300		$ 1,300	$ 22,800	$ 46,800
Mr. Wendel
Class of Stock [Line Items]
Total stock-based compensation expense				7,073
Mr. Mercer
Class of Stock [Line Items]
Total stock-based compensation expense	$ 100			7,430
Restricted Stock Units
Class of Stock [Line Items]
Reversal of previously recorded market-based RSU expense				(605)
Incremental expense for modified award				1,018
Restricted Stock Units | Mr. Wendel
Class of Stock [Line Items]
Total stock-based compensation expense		$ 700
Restricted Stock Units | Mr. Mercer
Class of Stock [Line Items]
Total stock-based compensation expense		$ 1,000
Options outstanding
Class of Stock [Line Items]
Incremental expense for modified award				804
Options outstanding | Mr. Wendel
Class of Stock [Line Items]
Incremental expense for modified award				3,662
Options outstanding | Mr. Mercer
Class of Stock [Line Items]
Incremental expense for modified award				3,451
Modified awards
Class of Stock [Line Items]
Total stock-based compensation expense				1,217
Market-based
Class of Stock [Line Items]
Total stock-based compensation expense				9,300
Market-based | Mr. Wendel
Class of Stock [Line Items]
Reversal of previously recorded market-based RSU expense				(9,879)
Incremental expense for modified award				13,290
Market-based | Mr. Mercer
Class of Stock [Line Items]
Reversal of previously recorded market-based RSU expense				(11,526)
Incremental expense for modified award				$ 15,505

Stock Incentive Plans and Eq_11

Stock Incentive Plans and Equity Awards - Assumptions (Details)	6 Months Ended
	Jun. 30, 2022
Market-based
Class of Stock [Line Items]
Expected dividend yield	0%
Risk-free interest rate	1.50%
Expected volatility	90%
Expected term (in years)	4 years 7 months 6 days
Market-based | The Founders
Class of Stock [Line Items]
Expected dividend yield	0%
Risk-free interest rate	2.50%
Expected volatility	90%
Expected term (in years)	4 years 4 months 24 days
Modified Vested Stock Options
Class of Stock [Line Items]
Expected dividend yield	0%
Modified Vested Stock Options | Minimum
Class of Stock [Line Items]
Risk-free interest rate	1.20%
Expected volatility	52.40%
Expected term (in years)	3 months 18 days
Modified Vested Stock Options | Maximum
Class of Stock [Line Items]
Risk-free interest rate	2.90%
Expected volatility	61.90%
Expected term (in years)	8 years 7 months 6 days

Stock Incentive Plans and Eq_12

Stock Incentive Plans and Equity Awards - Significant modifications and compensation expense (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
	Nov. 15, 2021	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Stock [Line Items]
Post-termination exercise period						90 days
Total stock-based compensation expense		$ 6,300			$ 1,300	$ 22,800	$ 46,800
Mr. Mercer
Class of Stock [Line Items]
Total stock-based compensation expense		$ 100				7,430
Mr. Wendel
Class of Stock [Line Items]
Total stock-based compensation expense						$ 7,073
Market-based
Class of Stock [Line Items]
Grants in period (in shares)						111,168
Total stock-based compensation expense						$ 9,300
Market-based | Mr. Mercer
Class of Stock [Line Items]
Grants in period (in shares)	5,250,000
Market-based | Mr. Wendel
Class of Stock [Line Items]
Grants in period (in shares)	4,500,000
Restricted Stock Units
Class of Stock [Line Items]
Grants in period (in shares)						11,803,908
Restricted Stock Units | Mr. Mercer
Class of Stock [Line Items]
Grants in period (in shares)			923,695	4,000,000
Total stock-based compensation expense			$ 1,000
Restricted Stock Units | Mr. Wendel
Class of Stock [Line Items]
Grants in period (in shares)			742,972	2,750,000
Total stock-based compensation expense			$ 700

Net Loss Per Share (Details)

Net Loss Per Share (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2022 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares
Class of Stock [Line Items]
Net loss | $	$ (37,434)	$ (20,584)	$ (85,583)	$ (85,755)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			54,258,097	116,969,373
Class A Common Stock
Class of Stock [Line Items]
Net loss | $	$ (37,403)	$ (12,173)	$ (80,986)	$ (47,477)
Weighted-average common shares, basic (in shares)	167,240,447	11,192,179	160,477,617	9,592,405
Weighted-average common shares, diluted (in shares)	167,240,447	11,192,179	160,477,617	9,592,405
Net loss per share attributable to common stockholders:
Basic (in dollars per share) | $ / shares	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Diluted (in dollars per share) | $ / shares	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Class B Common Stock
Class of Stock [Line Items]
Net loss | $	$ (31)	$ (8,411)	$ (4,597)	$ (38,278)
Weighted-average common shares, basic (in shares)	140,369	7,733,885	9,109,265	7,733,885
Weighted-average common shares, diluted (in shares)	140,369	7,733,885	9,109,265	7,733,885
Net loss per share attributable to common stockholders:
Basic (in dollars per share) | $ / shares	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Diluted (in dollars per share) | $ / shares	$ (0.22)	$ (1.09)	$ (0.50)	$ (4.95)
Series A Redeemable Convertible Preferred Stock
Net loss per share attributable to common stockholders:
Recapitalization, exchange ratio	1.2135		1.2135
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			9,151,773	11,654,295
Non plan option grants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	0	188,767
Convertible preferred stock | Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			0	81,215,956
Warrant for preferred/common stock | Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			0	190,210
Warrant for preferred/common stock | Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			24,328,608	9,974,065
Options and RSAs exercised under notes receivables
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			0	13,746,080
Unvested RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)			20,777,716	0

Commitments and Contingencies -

Commitments and Contingencies - Additional information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss Contingencies [Line Items]
Long-term purchase commitments			$ 1.9
Contributions by employer	$ 0.4	$ 0.2	0.5	$ 0.5
Volta benefit plan	0.5		0.5
Operating lease, lease not yet commenced	$ 11.2		$ 11.2
Minimum
Loss Contingencies [Line Items]
Operating lease, term of contract	4 years		4 years
Maximum
Loss Contingencies [Line Items]
Operating lease, term of contract	9 years		9 years

Commitments and Contingencies_2

Commitments and Contingencies - Maturities (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Remainder of 2022	$ 8,899
2023	17,905
2024	17,607
2025	16,096
2026	15,057
Thereafter	54,725
Total future payments	130,289
Less imputed interest	(41,313)
Total lease liabilities	$ 88,976

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Effective income tax rate	0%	0%	0%	0%
Unrecognized tax position	$ 2		$ 2		$ 2

Related Party Transactions (Det

Related Party Transactions (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($)	Dec. 31, 2021 individual
Related Party Transaction [Line Items]
Forfeitures		$ 40,237
Promissory Note Agreement
Related Party Transaction [Line Items]
Number of individuals with partial recourse promissory notes | individual			2
Amounts of transaction		$ 200
Forfeitures (in shares) | shares	71,454
Forfeitures	$ 200

Subsequent Events (Details)

Subsequent Events (Details)	Jul. 27, 2022 individual
Subsequent Event | Purported Shareholders
Subsequent Event [Line Items]
Number of defendants	5