Consumers Energy (CMS-PB) 8-K Regulation FD Disclosure

Growing Forward Morgan Stanley Utilities Conference March 11, 2010 Thomas J. Webb Executive Vice President and CFO

This presentation contains "forward-looking statements" as defined in Rule 3b-6 of the Securities Exchange Act of 1934, as amended, Rule 175 of the Securities Act of 1933, as amended, and relevant legal decisions. The forward-looking statements are subject to risks and uncertainties. They should be read in conjunction with "FORWARD-LOOKING STATEMENTS AND INFORMATION" and "RISK FACTORS" sections of CMS Energy's and Consumers Energy's Form 10-K for the year ended December 31, 2009. CMS Energy's and Consumers Energy's "FORWARD-LOOKING STATEMENTS AND INFORMATION" and "RISK FACTORS" sections are incorporated herein by reference and discuss important factors that could cause CMS Energy's and Consumers Energy's results to differ materially from those anticipated in such statements. The presentation also includes non-GAAP measures when describing CMS Energy's results of operations and financial performance. A reconciliation of each of these measures to the most directly comparable GAAP measure is included in the appendix and posted on our website at www.cmsenergy.com. CMS Energy expects 2010 reported earnings to be about the same as adjusted earnings. Reported earnings could vary because of several factors. CMS Energy is not providing reported earnings guidance reconciliation because of the uncertainties associated with those factors.

Business Strategy Maintain safe, excellent operations Invest in Utility $7 billion over next 5 years Fair and timely recovery Deliver 6%-8% adjusted EPS growth $1.26 in 2009 $1.35 guidance 2010 Grow dividend payout to: 44% in 2010 Peer average in future Generate strong cash flow and liquidity Strategy Outcome Regulated rate base growth story.

2009 2010 2010 2010 2010 2010 2010 2010 2011 Fourth Quarter First Quarter Second Quarter Third Quarter Fourth Quarter First Quarter Gas General Rate Case U-15986 Self-implemented $89 million November Final Order May Electric General Rate Case U-16191 Filed $178 million January Self-implement July Final Order January Show Cause U-16113 (forestry and O&M in 2007) MPSC Staff filed $27 million ALJ PFD April Electric Decoupling Reconciliation U-15645 File Clean Coal Plant Certificate of Necessity Air permit Received December Certificate of Necessity Regulatory Timeline Energy law balances need for regulatory certainty with customer interests.

Balanced Energy Plan ... Diverse and balanced plan Meets 10% renewable portfolio standard by 2015 Meets energy efficiency target of 5.5% by 2015 Includes demand management programs Purchase of Zeeland natural gas plant (2008) Build new clean coal facility Renewables (Nominal) Energy Efficiency and Demand Management Clean Coal Gas Combined Cycle 32 31 18 19 New Resources 2008 - 2018 .... includes new generation from diversified "fuel" sources.

Investment Plan 2008 2009 2010 2011 2012 2013 2014 Depreciation 7.851 8.729 9.2 8.811 8.45 8.053 7.654 7.093 Maintenance 0.606 1.176 1.718 2.282 2.816 Customer growth 0.058 0.123 0.204 0.3 0.399 Environmental 0.106 0.244 0.423 0.705 1.03 Gas compression and pipelines 0.078 0.143 0.182 0.204 0.213 Electric reliability and other 0.054 0.127 0.225 0.316 0.392 Renewables 0.02 0.072 0.211 0.316 0.444 Smart Grid 0.06 0.148 0.301 0.493 0.657 Clean coal plant 0.008 0.018 0.085 0.331 0.756 7%-8% Utility Investment Drives . . . . Rate Base a Bils $ Present Rate Base 2009 2010 2011 2012 2013 2014 Average Rate Base (bils) $9.8 $10.5 $11.4 $12.6 $13.8 .. . . . EPS growth at responsible rates. Investment 2010-14 Lifetime (mils) (bils) Base capital $ 4,330 Choices in Plan Clean coal plant $ 995 $1.9 Smart Grid 730 0.9 Renewables 570 1.3 Electric reliability and other 405 Gas compression and pipelines 180 Total Choices in Plan $ 2,880 Total Capital 2010-14 $ 7,210 Examples of Coal Plant Alternative Gas storage $150 Gas distribution 150 Gas transmission 200 Electric reliability 200 Electric generation 250 Total investment $950 _ _ _ _ _ a Reflects removal of DOE liability from rate base effective May 2009 0 ? ?

Renewable Energy Growth - Primarily Wind Capital investment $1.3 billion by 2017 Over 58,000 acres of wind easements Collecting meteorological data at the sites Signed PPAs for 9.4 MW renewables in August Evaluating bids for 250 MW of PPAs beginning 2012 and 2014 $80 million annual surcharge 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Voluntary Green Generation Program 71 71 71 71 71 71 71 71 71 71 71 State Renewable Standard - Build 100 100 100 250 250 450 450 State Renewable Standard - PPAs 100 100 250 250 250 450 450 State RPS of 10% planned to be met through existing renewables plus 50% build and 50% PPA for new renewable sources. Status Wind Build & PPAs MW

Energy Optimization Plan ... Six-year plan: 2009-2014 Residential programs focused on Efficient products Weatherization Appliance recycling Early education Business programs focused on Lighting upgrades Operational changes to improve energy efficiency Custom programs for large users Reductions by 2015 5.5% of electric 3.85% of gas $508 million program Approximately $90 million annual surcharge .... approved by MPSC in May 2009.

Meters and home devices Network SAP and other core business systems Billing Customer Information Outage Management Work and Asset Management Enterprise Applications (c) 2008 Consumers Energy Company MDM/MDUS Cost $190M Cost $ 730M Assessment Pilot Deployment Smart Grid Program Elements Sequencing the Smart Grid Program

Smart Grid Program Timeline 2012 2010 2011 Capital Spending Per Period ($ millions) $91 $86 $685 Systems and Communication Enablement - Release 1 Meter & Network Communications Pilot (4 areas) Dynamic Pricing Pilot Smart Grid Pilot Direct Load Mgt Pilot Meter Deployment 2015 2009 2007 Ramp-up $58 Vendor Selection Systems/Comm- Release 2 Low Volume High Volume

2007 2010 2011 1 2 3 4 5 7 Clean Coal Plant - Timeline Air permit filed Air permit granted File recovery application for proposed plant retirements File Certificate of Necessity MPSC CON decision Start of construction Air permit "sunset" End of construction Retirement of coal units 2009 2012 2017 8 6 9 Major equipment commitments or construction expenditures not incurred unless CON approved by MPSC. Spending * * Represents Consumers Energy ownership share (62.5%)

2010 Plans . . . . .. . . . continue EPS, operating cash flow, and dividend growth. CMS Earnings Potential By Business Segment a _ _ _ _ _ a Adjusted (non-GAAP) EPS excluding MTM in 2004-2006 b $1.25 excluding discontinued Exeter operations and accounting changes related to convertible debt and restricted stock Dividend Annual ¢/share Payout 25% 30% 2003 2004 2005 2006 2007 2008 2009 2010 Future Actual 0.81 0.9 0.96 1.08 0.84 1.21 1.26 Guidance 0.8 0.85 0.9 1 0.8 1.2 1.25 1.35 1.45 1.45 8% Growth 6%-8% Growth $1.21b $1.20 $1.25 $1.35 40% 44% 60¢ $1.26 Actual Guidance

2010 Adjusted Guidance (non-GAAP) . . . . .. . . . reflects EPS growth at 7%. Utility 2009 Revenue Cost & Other Rate Relief Financing Converts, Tax & Contingency DIG+ 2010 Guidance grey bars 1.26 1.35 spacer 1.08 0.89 0.89 1.48 1.34 1.34 red 0.18 0.19 0.32 0.07 green 0.22 0.14 0.01 0.12 Enterprises and Parent $0.29 $(0.20) + 7% Investment (8)¢ Maintenance (3) Financing (2) Tax (2) Other (4) Total (19)¢ Old Rates Decouple New Rates

Residential Commercial Industrial Total 2009 vs 2008 -0.005 -0.03 -0.058 -0.03 2010 vs 2009 -0.011 -0.017 -0.005 -0.011 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 August Plan 22145 23722 24572 25237 25707 24533 24875 23916 24893 26051 26305 26977 27928 29143 29623 29894 30325 30877 31868 33177 34465 34622 35462 36355 37234 37463 37301 37792 37746 38017 37586 38372 38098 37339 36123 35836 Revised Potential 37339 36000 Electric Sales Trends (weather adjusted) Electric Sales Y-O-Y Comparison 0 (7)% Decline over three years ('79 -'82 recession) 2008 2009 (2)% (3)% Overall sales decline about the size of the recession in the early 1980s; industrial sales decline subsiding in 2010. Future sales volatility mitigated by decoupling. 2010 (1)% ? ? ? ? ?

Enterprises and EnerBank . . . . Filer City Michigan Power (Livingston) Grayling Summary Enterprises and EnerBank Michigan Power (Kalamazoo River) Craven Genesee DIG EnerBank HQ Renewables Other Ownership Gross Plant Fuel Interest Capacity (MW) Craven Wood 50% 50 DIG/MI Power Natural gas 100 934 Exeter Scrap Tire 100 31 Filer City Coal 50 70 Genesee Wood 50 40 Grayling Wood 50 38 Honey Lake Wood 37.8 36 Exeter Honey Lake .. . . . are 6% of CMS business; 1¢ of CMS growth in 2010.

2010 Cash Flow Forecast (non-GAAP) CMS Energy Parent Consumers Energy _ _ _ _ _ a Includes other _ _ _ _ _ b Includes cost of removal and capital leases ? $455

Liquidity Outlook . . . . Mar Jun Sep Dec Mar Jun Sep Dec Blank Liquidity 1099 1850 1634 1652 1442 1809 1684 1345 1237 Cash 899 1650 1434 1452 1242 1609 1484 1145 1037 460 520 Amount (bils) $ $1.2 2009 2010 2011 Maturities (mils) Utility - - $308 - - - - - - Parent - - - $67 - - $214 - - Gas Inventory Historical operating risk Gas Inventory .. . . . improved with "prefunding" of CMS maturities. $1.1 Amount (bils) A/R program $0.2 Consumers revolvers 0.3 Parent revolver 0.5 Cash 0.1 Total $1.1

2010 Sensitivities . . . . _ _ _ _ _ * Less than 0.5¢ or $500,000 .. . . . mitigated by decoupling and "UA" tracker. Annual Impact (w/trackers) Annual Impact (w/trackers) Annual Impact (w/trackers) Sensitivity EPS FCF (mils) Sales (weather adjusted) vs '09 Electric (35,835 Gwh) Gas (280.7 Bcf) + 1% + 3 $ 0 + 0.02 + $15 + 10 Gas prices + 0.50 + 0.01 + 60 Uncollectible accounts (mils) + 5 0.01 * ROE Electric Gas + 50 bps + 50 + 0.06 + 0.02 + 25 + 10 Stock price (dilution) $1 share + 0.01 0

2010 Financial Targets . . . . Target Adjusted EPS $1.35 Operating cash flow (bils) 1.4 Capital structure (year-end) FFO/Average debt 16% Parent debt (bils) $1.8 Utility equity ratio 48% c .. . . . continue seven-year track record. a _ _ _ _ _ a Non-GAAP b Net of cash c Financial, excluding securitization and Palisades financing obligation a b

Key Takeaways . . . . Utility investment - visible: EPS growth of 6%-8% annually Operating cash flow growth of ^$100 million annually NOLs - avoid new equity near term Regulatory framework -- constructive Risks -- mitigated Dividend payout ratio -- growing .. . . . continued track record of strong results.

Appendix

ELECTRIC RATE CASE U-16191*

On January 22, 2010, Consumers Energy filed an application with the Michigan Public Service Commission seeking an increase in its electric generation and distribution rates based on a June 2011 test year. The request seeks authority to recover new investment in system reliability, environmental compliance and technology enhancements. These investments are part of the Company’s Growing Forward strategy which calls for investing more than $6 billion in utility operations over the next five years. The proposed overall rate of return is based on an 11.0% authorized return on equity. If approved, the request would increase customer rates by an average of 5.2%. The $178 million request is detailed below.

Item	$ Millions		EXPLANATION
1. O&M	$	49	Generation reliability and environmental: $25
			Technology: $24
2. Gross Margin		5	Reduced third-party revenues; lower sales will be addressed in sales decoupling mechanism.
3. Investment		106	Net plant (distribution and generation reliability, environmental and technology): $72
			Working capital: $29
			Depreciation and property taxes: $21
			DOE Liability: ($5)
			Taxes, AFUDC, and other: ($11)
4. Cost of Capital		18	Higher return on equity (11% vs. 10.7%): $12
			Other capitalization costs: $6
Total	$	178

Ratemaking	Existing			As Filed						After-Tax
Capital Structure	(U-15645)			Percent of Total			Annual Cost			Weighted Costs
Long Term Debt		44.80	%		41.77	%		5.92	%		2.47	%
Short Term Debt		0.78			1.51			3.96			0.06
Preferred Stock		0.48			0.44			4.46			0.02
Common Equity		40.51			41.49	(1)		11.00			4.56
Deferred FIT		12.80			14.26			0.00			0.00
JDITC/Other		0.63			0.53			8.50			0.05
		100.00	%		100.00	%					7.16	%(2)

	Existing
Rate Base and Return	(U-15645)			As Filed
Rate Base ($ billions)	$	6.16		$	6.97
Return on Rate Base		6.98	%		7.16	%
Return on Equity		10.70	%		11.00	%

(1)	Equivalent to 49.57% on a financial basis.
(2)	Equivalent to 10.10% pre-tax basis.

ELECTRIC RATE CASE SCHEDULE

Staff & Intervenors File Testimony	June 10, 2010
Consumers Files Self-implementation Rates	June 28, 2010
Rebuttal Testimony	July 1, 2010
Motions to Strike Testimony	July 8, 2010
Replies to Motions to Strike	July 13, 2010
Self-implementation Under PA 286	July 22, 2010
Cross of all Witnesses	July 15-28, 2010
Initial Briefs	August 26, 2010
Reply Briefs	September 16, 2010
Proposal for Decision	November 1, 2010
Commission Order	By January 21, 2011

* Electric Rate Case U-16191 can be accessed at the Michigan Public Service Commission’s website. http://efile.mpsc.cis.state.mi.us/efile/electric.html

Appendix-1

GAS RATE CASE U-15986*

On May 22, 2009, Consumers Energy filed an application with the Michigan Public Service Commission seeking an increase in its gas delivery and transportation rates based on a 12 month ending September 30, 2010 test year. The request seeks authorization to implement a revenue decoupling mechanism and uncollectibles and pension expense tracking mechanisms. On October 22, the Staff filed its position recommending a $63 million increase. The Staff supported a revenue decoupling mechanism exclusive of weather impacts and net customer charge revenues. The Staff’s proposal would allow the Company to file a true-up within 90 days after the rates set in this proceeding have been in effect for 12 months. Staff did not support the Company’s proposed uncollectibles tracking mechanism, however, the Staff has identified a methodology, should the Commission authorize an uncollectibles tracking mechanism. On October 16, the Company filed a tariff sheet supporting the $89 million revenue increase the Company intends to self implement on November 19. If the self-implemented amount exceeds the amount awarded by the Commission in the final order, the difference would be subject to refund.

	Company				MPSC
	Self		MPSC		Staff
Item	Implement		Staff		B/(W)			EXPLANATION OF VARIANCE
	(mils)		(mils)		(mils)
1. O&M	$	17	$	1	$	(16	)	Uncollectible accounts expense: $(12) Manufactured Gas Plant Amortization: $(4)(1)
2. Sales		41		35		(6	)	Miscellaneous revenues: $(6)
3. Investment		23		27		4		Manufactured Gas Plant Amortization: $4(1)
4. Cost of Capital		8		0		(8	)	Lower Return on Equity: $(6) (10.70% vs. 11.00%) Lower debt costs: $(1) Lower equity ratio: $(1)
Total	$	89	$	63	$	26

⁽¹⁾ The Staff classifies Manufactured Gas Plant amortization as depreciation while the Company classifies it as other O&M

Ratemaking	Existing			Consumers Filing			MPSC
Capital Structure	(U-15506)			Percent of Total			Staff
Long Term Debt		42.71	%		43.43	%		43.58	%
Short Term Debt		0.66			0.58			0.34
Preferred Stock		0.49			0.46			0.46
Common Equity		41.78			41.07	(1)		40.78
Deferred Taxes		12.94			13.17			13.30
JDITC/Other		1.42			1.29			1.54
		100.00	%		100.00	%		100.00	%

Rate Base and Return	Existing			Consumers			MPSC
Percentage	(U-15506)			Self Implement			Staff
Rate Base ($ billions)	$	2.52		$	2.76		$	2.75
Return on Rate Base		7.03	%		7.28	%		7.06	%
Return on Equity		10.55			11.00			10.70

GAS RATE CASE SCHEDULE – UPDATED AS OF FEBRUARY 23, 2010

PFD Target Date	March 24, 2010
Exceptions	April 7, 2010
Replies to Exceptions	April 21, 2010
Commission Order	May 21, 2010

(1)	Equivalent to 48.34% on financial basis.
*	Gas Rate Case U-15986 can be accessed at the Michigan Public Service Commission’s website. http://efile.mpsc.cis.state.mi.us/efile/gas.html

Appendix -2

MATURITY SCHEDULE OF CMS AND CECO LONG-TERM DEBT & PREFERRED SECURITIES
AS OF 01/31/2010

		Maturity	Amount
F/V	S/U	or Call Date	(000’s)			DEBT/ CO
SHORT-TERM DEBT:
F	S	05/15/10	$	250,000		4% FMBs (CECo)
F	S	06/15/10		30,000		3.375% Fixed PCRBs (CECo)
F	S	06/15/10		27,900		4.25% PCRBs (CECo)
F	U	08/01/10		67,291		7.75% Sr Unsec Notes (CMS)
F	U	SHORT-TERM		139,730		*3.375% Convertible Sr NotesPut Date(CMS)
			$	514,921
LONG-TERM DEBT:
F	U	04/15/11	$	213,653		8.5% Sr Notes (CMS)
F	U	12/01/11		287,500		*2.875% Convertible Sr Unsec NotesPut Date(CMS)
			$	501,153
F	U	02/01/12	$	150,000		6.3% Senior Notes (CMS)
F	S	02/15/12		300,000		5% Series L FMBs (CECo)
			$	450,000
V	U	01/15/13	$	150,000		Floating Rate Sr Notes (CMS)
F	S	04/15/13		375,000		5.375% Series B FMBs (CECo)
			$	525,000
F	S	02/15/14	$	200,000		6% FMBs (CECo)
F	U	06/15/14	$	172,500		5.5% Convertible Sr NotesPut Date(CMS)
F	S	03/15/15	$	225,000		5% FMBs Series N (CECo)
F	U	12/15/15	$	125,000		6.875% Sr Notes (CMS)
F	S	08/15/16	$	350,000		5.5% Series M FMBs (CECo)
F	S	02/15/17	$	250,000		5.15% FMBs (CECo)
F	U	07/17/17	$	250,000		6.55% Sr Notes (CMS)
F	S	03/01/18	$	180,000		6.875% Sr Notes (CECo)
V	S	04/15/18	$	67,700		VRDBs to replace PCRBs (CECo)
F	S	09/15/18	$	250,000		5.65% FMBs (CECo)
F	S	03/15/19	$	350,000		6.125% FMBs (CECo)
F	U	06/15/19	$	300,000		8.75% Sr Notes (CMS)
F	S	09/15/19	$	500,000		6.70% FMBs (CECo)
F	U	2/1/2020	$	300,000		6.25% Sr Notes (CMS)
F	S	04/15/20	$	300,000		5.65% FMBs (CECo)
F	U	07/15/27	$	34,002		QUIPS 7.75%(CMS)Pref Sec**
V	S	04/01/35	$	35,000		PCRBs (CECo)
F	S	04/15/35	$	137,883		5.65% FMBs IQ Notes (CECo)
F	S	09/15/35	$	175,000		5.80% FMBs (CECo)
			$	4,202,085
			$	6,193,159		TOTAL
			$	6,159,157		TOTAL EXCLUDING PREFERRED SECURITIES
		Various Maturity Dates/No Maturity Date Available:
			$	0		CMS Energy Revolver as of 01/31/10
				40,000		EnerBank Notes Payable (all Short-Term) as of 01/31/10
				0		CECo Revolver as of 01/31/10
				0		CECo A/R Program as of 01/31/10
				234,861		CECo Securitization Bonds (Long-Term & Short-Term) after 01/20/10 payment
				219,844		CECo Capital lease rental commitments (Long-Term & Short-Term) as of 12/31/09
				548		CMS Enterprises (Genesee) Capital lease rental commitments (Long-Term & Short-Term) as of 12/31/09
				162,818		CECo DOE Liability as of 01/31/10
				214,506		EnerBank (Long-Term & Short-Term) Discount Brokered CDs as of 12/31/09 (CMS)
				(37,274	)	CMS Net unamortized discount as of 12/31/09
				(4,957	)	CECo Net unamortized discount as of 12/31/09
				69,221		CMS Enterprises Debt (Long-Term & Short-Term) as of 12/31/09
			$	7,052,725		GRAND TOTAL INCLUDING CMS ENERGY, CONSUMERS & OTHER CMS
						ENTERPRISES SUBSIDIARIES, INCLUDING PREFERRED SECURITIES

*	— Date that issue can be put to the Company is used instead of maturity date
**	— Includes subordinated notes amounts associated with preferred securities. Principal amount of QUIPS: $28.6665MM

Status Codes: F-Fixed rate; V-Variable rate; S-Secured; U-Unsecured

Appendix-3

Convertible Securities Share Dilution Average Annual 2010 Over Stock 4.5% 3.375% 2.875% 5.5% Share 2009 Price Preferred Notes Notes Notes Dilution Dilution (mils) (mils) (mils) (mils) (mils) (%) $13 7.8 3.4 - - 11.2 0% 15 10.2 4.9 1.9 0.4 17.4 3 17 12.1 6.0 4.2 1.8 24.1 5 19 13.6 6.8 6.0 2.8 29.2 8 Outstanding (mils) $238 $140 $287 $173 Conversion Price a $9.137 $9.856 $13.623 $14.46 Trigger Price 10.96 11.83 16.35 18.80 Principal amount paid in cash; premium in stock. _ _ _ _ _ a As of March 2010; will be adjusted for future dividend payments Appendix 4

Federal Tax Benefits Year-End Actual Estimate 2009 2010 2011 2012 (bils) (bils) (bils) (bils) Gross NOL carry forwards $ 1.3 $ .8 $ .3 $ 0 Net NOL cash benefit at 35% $ .5 $ .3 $ .1 0 Credit carry forwards .3 .3 .3 .3 Remaining cash benefit $ .8 $ .6 $ .4 $.3 Appendix 5

Consumers Capital Expenditures Appendix 6

GAAP Reconciliation

CMS Energy
Earnings Reconciliation By Quarter and Year
December 31
Reconciliation of reported measures prepared in accordance with
Generally Accepted Accounting Principles (GAAP) versus non-GAAP measures

	Unaudited Quarters
(millions, except per share amounts)	1Q03			2Q03			3Q03			4Q03			FY 2003
Reported net income	$	82		$	(65	)	$	(69	)	$	8		$	(44	)
After-tax items:
Electric and gas utility other											30			30
Enterprises other		5			7			62			37			111
Corporate other		1						19			4			24
Discontinued operations		(31	)		53			(2	)		(43	)		(23	)
Cumulative accounting changes		24												24
Ongoing earnings (non-GAAP)	$	81		$	(5	)	$	10		$	36		$	122
Average shares outstanding, basic		144.1			144.1			152.2			161.1			150.4
Average shares outstanding, diluted		165.0			144.1			152.2			161.1			150.4
Reported earnings per share	$	0.52		$	(0.45	)	$	(0.46	)	$	0.05		$	(0.30	)
After-tax items
Electric and gas utility other											0.19			0.21
Enterprises other		0.03			0.05			0.41			0.23			0.74
Corporate other								0.12			0.02			0.16
Discontinued operations		(0.19	)		0.37			(0.01	)		(0.27	)		(0.16	)
Cumulative accounting changes		0.14												0.16
Ongoing earnings per share (non-GAAP)	$	0.50		$	(0.03	)	$	0.06		$	0.22		$	0.81

Note: Year-to-date (YTD) EPS may not equal sum of quarters due to share count differences.

2003 A-1

CMS Energy
Earnings Reconciliation By Quarter and Year
Reconciliation of reported measures prepared in accordance with
Generally Accepted Accounting Principles (GAAP) versus non-GAAP measures

	Unaudited												31-Dec
(millions, except per share amounts)	1Q04*			2Q04			3Q04			4Q04			FY 2004
Reported net income — GAAP	$	(9	)	$	16		$	56		$	47		$	110
After-tax items:
Electric and gas utility other											(67	)		(67	)
Enterprises other		88						(29	)		48			107
Corporate other		(7	)					(1	)		1			(7	)
Discontinued operations		2						(8	)		10			4
Cumulative accounting changes		2												2
Adjusted earnings, including M-T-M	$	76		$	16		$	18		$	39		$	149
Mark-to-market impacts	NM				(13	)		9			9			5
Adjusted earnings, excluding M-T-M	$	76		$	3		$	27		$	48		$	154
Average shares outstanding, basic		161.1			161.2			161.5			190.2			168.6
Average shares outstanding, diluted		161.1			164.2			165.0			194.0			172.1
Reported earnings per share — GAAP	$	(0.06	)	$	0.10		$	0.34		$	0.24		$	0.64
After-tax items
Electric and gas utility other											(0.35	)		(0.39	)
Enterprises other		0.56						(0.17	)		0.25			0.62
Corporate other		(0.05	)					(0.01	)		0.01			(0.03	)
Discontinued operations		0.01						(0.05	)		0.05			0.02
Cumulative accounting changes		0.01												0.01
Adjusted earnings per share, including M-T-M	$	0.47		$	0.10		$	0.11		$	0.20		$	0.87
Mark-to-market impacts	NM				(0.08	)		0.06			0.05			0.03
Adjusted earnings per share, excluding M-T-M	$	0.47		$	0.02		$	0.17		$	0.25		$	0.90

Note: Year-to-date & full-year EPS may not equal sum of quarters due to share count differences.

* Quarterly amounts differ from amounts previously reported due to accelerating the measurement date on our benefit plans by one month and the remeasurement of our post retirement obligation.

NM: Not meaningful.

2004 A-1

CMS Energy
Earnings Reconciliation By Quarter and Year
Reconciliation of reported measures prepared in accordance with
Generally Accepted Accounting Principles (GAAP) versus non-GAAP measures

	Unaudited												31-Dec
(millions, except per share amounts)	1Q05			2Q05			3Q05			4Q05			FY 2005
Reported net income — GAAP	$	150		$	27		$	(265	)	$	(6	)	$	(94	)
After-tax items:
Electric and gas utility other
Enterprises other		(2	)		(1	)		(1	)		13			9
Corporate other					1						8			9
Discontinued operations											(14	)		(14	)
Asset impairment								385						385
Adjusted earnings, including M-T-M	$	148		$	27		$	119		$	1		$	295
Mark-to-market impacts		(75	)		19			(75	)		40			(91	)
Adjusted earnings, excluding M-T-M	$	73		$	46		$	44		$	41		$	204
Average shares outstanding, basic		195.3			217.9			219.6			218.5			211.8
Average shares outstanding, diluted		206.3			228.9			219.6			218.5			211.8
Reported earnings per share — GAAP	$	0.74		$	0.12		$	(1.21	)	$	(0.03	)	$	(0.44	)
After-tax items
Electric and gas utility other
Enterprises other		(0.01	)	NM			NM				0.06			0.04
Corporate other				NM							0.03			0.04
Discontinued operations											(0.06	)		(0.07	)
Asset impairment								1.75						1.82
Adjusted earnings per share, including M-T-M	$	0.73		$	0.12		$	0.54		$	0.00		$	1.39
Mark-to-market impacts		(0.36	)		0.08			(0.34	)		0.19			(0.43	)
Adjusted earnings per share, excluding M-T-M	$	0.37		$	0.20		$	0.20		$	0.19		$	0.96

Note: Year-to-date & full-year EPS may not equal sum of quarters due to share count differences.

2005 A-1

CMS Energy
Earnings Reconciliation By Quarter and Year
Reconciliation of reported measures prepared in accordance with
Generally Accepted Accounting Principles (GAAP) versus non-GAAP measures

	Unaudited
	2006												2006
(In millions, except per share amounts)	1Q			2Q			3Q			4Q			Dec YTD
Reported net income — GAAP	$	(27	)	$	72		$	(103	)	$	(32	)	$	(90	)
After-tax items:
Electric and gas utility other		—			—			—			—			—
Enterprises other		—			—			(29	)		25			(4	)
Corporate interest and other		2			(15	)		4			82			73
Discontinued operations (gain)		(1	)		(2	)		(1	)		(2	)		(6	)
Asset impairment charges		—			—			169			—			169
Adjusted earnings, including MTM	$	(26	)	$	55		$	40		$	73		$	142
Mark-to-market impacts		74			21			30			(13	)		112
Adjusted earnings, excluding MTM	$	48		$	76		$	70		$	60		$	254
Average shares outstanding, basic		219.1			219.6			220.1			220.6			219.9
Average shares outstanding, diluted		219.1			229.6			220.1			220.6			219.9
Reported earnings per share — GAAP	$	(0.12	)	$	0.31		$	(0.47	)	$	(0.15	)	$	(0.41	)
After-tax items
Electric and gas utility other		—			—			—			—			—
Enterprises other		—			—			(0.13	)		0.11			(0.02	)
Corporate other		0.01			(0.07	)		0.02			0.38			0.27
Discontinued operations		(0.01	)		(0.01	)		—			(0.01	)		(0.03	)
Asset impairment charges		—			—			0.76			—			0.76
Adjusted earnings per share, including MTM	$	(0.12	)	$	0.23		$	0.18		$	0.33		$	0.57
Mark-to-market impacts		0.34			0.10			0.13			(0.06	)		0.51
Adjusted earnings per share, excluding MTM	$	0.22		$	0.33		$	0.31		$	0.27		$	1.08

Note: Year-to-date (YTD) EPS may not equal sum of quarters due to share count differences.

NM: Not Meaningful.

2006 A-1

CMS Energy Corporation
Earnings By Quarter and Year GAAP Reconciliation
(Unaudited)

	(In millions, except per share amounts)
	2007
	1Q			2Q			3Q			4Q			Dec YTD
Reported net income (loss) — GAAP		($215	)	$	33		$	82			($127	)		($227	)
After-tax items:
Electric and gas utility		4			—			—			—			4
Enterprises		49			19			(10	)		222			280
Corporate interest and other		(81	)		32			9			(38	)		(78	)
Discontinued operations (income) loss		178			(91	)		—			2			89
Asset impairment charges, net		157			25			(49	)		—			133
Adjusted income — non-GAAP	$	92		$	18		$	32		$	59		$	201
Average shares outstanding, basic		221.5			222.6			223.0			223.4			222.6
Average shares outstanding, diluted		221.5			222.6			241.3			223.4			222.6
Reported earnings (loss) per share — GAAP		($0.97	)	$	0.15		$	0.34			($0.57	)		($1.02	)
After-tax items:
Electric and gas utility		0.01			—			—			—			(0.07	)
Enterprises		0.23			0.08			(0.04	)		0.99			1.25
Corporate interest and other		(0.36	)		0.15			0.03			(0.17	)		(0.32	)
Discontinued operations (income) loss		0.80			(0.41	)		—			0.01			0.40
Asset impairment charges, net		0.71			0.11			(0.20	)		—			0.60
Adjusted earnings per share — non-GAAP	$	0.42		$	0.08		$	0.13		$	0.26		$	0.84

	(In millions, except per share amounts)
	2008
	1Q			2Q			3Q			4Q		Dec YTD
Reported net income — GAAP	$	103		$	46		$	79		$	61	$	289
After-tax items:
Electric and gas utility		—			1			6			5		12
Enterprises		*			(4	)		(*	)		1		(3	)
Corporate interest and other		—			—			(6	)		1		(5	)
Discontinued operations (income) loss		(*	)		1			(1	)		*		*
Adjusted income — non-GAAP	$	103		$	44		$	78		$	68	$	293
Average shares outstanding, basic		223.5			223.7			224.1			224.5		223.9
Average shares outstanding, diluted		236.6			239.1			234.3			226.6		234.8
Reported earnings per share — GAAP	$	0.44		$	0.19		$	0.34		$	0.27	$	1.23
After-tax items:
Electric and gas utility		—			0.01			0.02			0.03		0.05
Enterprises		*			(0.02	)		0.01			*		(0.01	)
Corporate interest and other		—			—			(0.03	)		*		(0.02	)
Discontinued operations (income) loss		(*	)		0.01			(0.01	)		*		*
Adjusted earnings per share — non-GAAP (a)	$	0.44		$	0.19		$	0.33		$	0.30	$	1.25

(a)	Including discontinued Exeter operations and accounting changes related to convertible debt and restricted stock, adjusted earnings per share was $0.43, $0.17, $0.32, $0.30, and $1.21, respectively.
Note: Year-to-date (YTD) EPS may not equal sum of quarters due to share count differences.
*	Less than $500 thousand or $0.01 per share.

2008 A-1

CMS ENERGY CORPORATION
Earnings Segment Results GAAP Reconciliation
(Unaudited)

	Three Months Ended						Twelve Months Ended
December 31	2008			2007			2008			2007
Electric Utility
Reported	$	0.17		$	0.17		$	1.16		$	0.88
Dilution Impact		—			—			—			(0.06	)
Unrealized Investment Loss		0.02			—			0.03			—
Asset Sales Loss and Other, net		—			—			*			0.01
Adjusted	$	0.19		$	0.17		$	1.19		$	0.83
Gas Utility		.
Reported	$	0.19		$	0.15		$	0.38		$	0.39
Dilution Impact		—			—			—			(0.03	)
Unrealized Investment Loss		0.01			—			0.02			—
Asset Sales Loss and Other, net		—			—			—			0.01
Adjusted	$	0.20		$	0.15		$	0.40		$	0.37
Enterprises
Reported	$	0.01		$	(0.97	)	$	0.06		$	(1.75	)
Unrealized Investment Loss		*			—			0.01			—
Asset Impairment Charges, net of insurance recoveries		—			—			—			0.55
Asset Sales (Gain) Loss and Other, net		—			0.99			(0.02	)		1.25
Adjusted	$	0.01		$	0.02		$	0.05		$	0.05
Corporate Interest and Other
Reported	$	(0.10	)	$	0.09		$	(0.37	)	$	(0.14	)
Dilution Impact		—			—			—			0.03
Unrealized Investment Loss		*			—			0.01			—
Asset Impairment Charges, net of insurance recoveries		—			—			—			0.05
Asset Sales Gain and Other, net		—			(0.17	)		(0.03	)		(0.35	)
Adjusted	$	(0.10	)	$	(0.08	)	$	(0.39	)	$	(0.41	)
Discontinued Operations
Reported	$	—		$	(0.01	)	$	—		$	(0.40	)
Discontinued Operations Loss		—		$	0.01			—			0.40
Adjusted	$	—		$	—		$	—		$	—
Totals
Reported	$	0.27		$	(0.57	)	$	1.23		$	(1.02	)
Discontinued Operations Loss		—			0.01			—			0.40
Dilution Impact		—			—			—			(0.06	)
Unrealized Investment Loss		0.03			—			0.07			—
Asset Impairment Charges, net of insurance recoveries		—			—			—			0.60
Asset Sales (Gain) Loss and Other, net		—			0.82			(0.05	)		0.92
Adjusted	$	0.30		$	0.26		$	1.25	(a)	$	0.84
Average Common Shares Outstanding — Diluted (in millions)		226.6			223.4			234.8			222.6

(a)	$1.21 including discontinued Exeter operations and accounting changes related to convertible debt and restricted stock.
*	Less than $0.01 per share.

2008 A-2

CMS Energy Corporation
Earnings By Quarter and Year GAAP Reconciliation
(Unaudited)

(In millions, except per share amounts)	2008
	1Q			2Q			3Q			4Q		Dec YTD
Reported net income — GAAP	$	102		$	44		$	78		$	60	$	284
After-tax items:
Electric and gas utility		—			1			6			5		12
Enterprises		*			(4	)		*			1		(3	)
Corporate interest and other		—			—			(6	)		1		(5	)
Discontinued operations (income) loss		(1	)		1			(1	)		*		(1	)
Adjusted income — non-GAAP	$	101		$	42		$	77		$	67	$	287
Average shares outstanding, basic		225.2			225.4			225.8			226.3		225.7
Average shares outstanding, diluted		237.6			240.6			236.3			228.1		236.2
Reported earnings per share — GAAP	$	0.43		$	0.18		$	0.33		$	0.26	$	1.20
After-tax items:
Electric and gas utility		—			0.01			0.02			0.03		0.05
Enterprises		*			(0.02	)		0.01			0.01		(0.02	)
Corporate interest and other		—			—			(0.03	)		*		(0.02	)
Discontinued operations (income) loss		(*	)		—			(0.01	)		*		(*	)
Adjusted earnings per share — non-GAAP (a)	$	0.43		$	0.17		$	0.32		$	0.30	$	1.21

(In millions, except per share amounts)	2009
	1Q		2Q			3Q		4Q			Dec YTD
Reported net income — GAAP	$	70	$	75		$	67	$	6		$	218
After-tax items:
Electric and gas utility		—		—			—		79			79
Enterprises		*		16			2		4			22
Corporate interest and other		*		1			1		(1	)		1
Discontinued operations (income) loss		1		(25	)		1		3			(20	)
Adjusted income — non-GAAP	$	71	$	67		$	71	$	91		$	300
Average shares outstanding, basic		226.6		226.9			227.3		227.8			227.2
Average shares outstanding, diluted		233.2		234.6			238.5		243.0			237.9
Reported earnings per share — GAAP	$	0.30	$	0.32		$	0.28	$	0.02		$	0.91
After-tax items:
Electric and gas utility		—		—			—		0.33			0.33
Enterprises		*		0.07			0.01		0.02			0.09
Corporate interest and other		*		*			*		(*	)		0.01
Discontinued operations (income) loss		0.01		(0.11	)		0.01		0.01			(0.08	)
Adjusted earnings per share — non-GAAP	$	0.31	$	0.28		$	0.30	$	0.38		$	1.26

Note: Year-to-date (YTD) EPS may not equal sum of quarters due to share count differences.
*	Less than $500 thousand or $0.01 per share.
(a)	Excluding discontinued Exeter operations and accounting changes related to convertible debt and restricted stock, adjusted earnings per per share was $0.44, $0.19, $0.33, $0.30, and $1.25, respectively.

2009 A-1

CMS Energy Corporation
Earnings Segment Results GAAP Reconciliation
(Unaudited)

	Three Months Ended						Twelve Months Ended
December 31	2009			2008			2009			2008
Electric Utility
Reported	$	(0.10	)	$	0.17		$	0.82		$	1.16
Unrealized Investment Loss		—			0.01			—			0.03
Asset Sales Loss and Other, net		0.33			—			0.33			*
Adjusted	$	0.23		$	0.18		$	1.15		$	1.19
Gas Utility
Reported	$	0.18		$	0.19		$	0.41		$	0.38
Unrealized Investment Loss		—			0.01			—			0.02
Adjusted	$	0.18		$	0.20		$	0.41		$	0.40
Enterprises
Reported	$	(*	)	$	*		$	(0.03	)	$	0.06
Unrealized Investment Loss		—			*			—			0.01
Asset Sales (Gain) Loss and Other, net		0.02			0.01			0.09			(0.03	)
Adjusted	$	0.02		$	0.01		$	0.06		$	0.04
Corporate Interest and Other
Reported	$	(0.05	)	$	(0.10	)	$	(0.37	)	$	(0.40	)
Unrealized Investment Loss		—			0.01			—			0.01
Asset Sales (Gain) Loss and Other, net		(*	)		*			0.01			(0.03	)
Adjusted	$	(0.05	)	$	(0.09	)	$	(0.36	)	$	(0.42	)
Discontinued Operations
Reported	$	(0.01	)	$	(*	)	$	0.08		$	*
Discontinued Operations (Income) Loss		0.01			*			(0.08	)		(*	)
Adjusted	$	—		$	—		$	—		$	—
Totals
Reported	$	0.02		$	0.26		$	0.91		$	1.20
Discontinued Operations (Income) Loss		0.01			*			(0.08	)		(*	)
Unrealized Investment Loss		—			0.03			—			0.07
Asset Sales (Gain) Loss and Other, net		0.35			0.01			0.43			(0.06	)
Adjusted	$	0.38		$	0.30		$	1.26		$	1.21	(a)
Average Common Shares Outstanding — Diluted (in millions)		243.0			228.1			237.9			236.2

*	Less than $0.01 per share.
(a)	$1.25 excluding discontinued Exeter operations and accounting changes related to convertible debt and restricted stock.

2009 A-2

Consumers Energy
2009 Cash Flow GAAP Reconciliation (in millions) (unaudited)

				Reclassifications From Sources and Uses to Statement of Cash Flows
Presentation Sources and Uses				Tax			Interest			Pension			Accts/Rec			Capital			Securitization			Operating			Preferred			Common			Consolidated Statements of Cash Flows
	non-GAAP			Sharing			Payments			Contribution			Financing			Lease Pymts			Debt Pymts			Activites			Dividends			Dividends			GAAP
Description	Amount			Operating			as Operating			as Operating			as Operating			as Financing			as Financing			as Investing			as Financing			as Financing			Amount			Description
Cash at year end 2008	$	69		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	69		Cash at year end 2008
Sources
Operating	$	1,315		$	(82	)	$	(224	)	$	—		$	—		$	23		$	34		$	(35	)	$	—		$	—		$	1,031
Other working capital		210			—			—			(199	)		(120	)		—			—			—			—			—			(109	)
Sources	$	1,525		$	(82	)	$	(224	)	$	(199	)	$	(120	)	$	23		$	34		$	(35	)	$	—		$	—		$	922		Net cash provided by operating activities
Uses
Interest and preferred dividends	$	(226	)	$	—		$	224		$	—		$	—		$	—		$	—		$	35		$	2		$	—		$	35
Pension Contribution		(199	)		—			—			199			—			—			—			—			—			—			—
Capital expenditures		(885	)		—			—			—			—			—			—			—			—			—			(885	)
Dividends/tax sharing to CMS		(367	)		82			—			—			—			—			—			—			—			285			—
Uses	$	(1,677	)	$	82		$	224		$	199		$	—		$	—		$	—		$	35		$	2		$	285		$	(850	)	Net cash provided by investing activities
Cash flow	$	(152	)	$	—		$	—		$	—		$	(120	)	$	23		$	34		$	—		$	2		$	285		$	72		Cash flow from operating and investing activities
Financing
Equity	$	100		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	(2	)	$	—		$	98
New Issues		500			—			—			—			—			—			—			—			—			—			500
Retirements		(353	)		—			—			—			—			(23	)		(34	)		—			—			(285	)		(695	)
Other		(5	)		—			—			—			—			—			—			—			—			—			(5	)
Net short-term financing		(120	)		—			—			—			120			—			—			—			—			—			—
Financing	$	122		$	—		$	—		$	—		$	120		$	(23	)	$	(34	)	$	—		$	(2	)	$	(285	)	$	(102	)	Net cash provided by financing activities
Net change in cash	$	(30	)	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	(30	)	Net change in cash
Cash at year end 2009	$	39		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	39		Cash at year end 2009

2009 A-3

CMS Energy Parent
2009 Cash Flow GAAP Reconciliation (in millions) (unaudited)

				Reclassifications From Sources and Uses to Statement of Cash Flows
Presentation Sources and Uses				Interest			Overheads &			Other			Preferred			Pref Stk			Cash From			Consolidated Statements of Cash Flows
	non-GAAP			Payments			Tax Payments			Uses (a)			Dividends			Retirement			Consolidated			GAAP
Description	Amount			as Operating			as Operating			as Operating			as Financing			as Operating			Companies			Amount			Description
Cash at year end 2008	$	117		$	—		$	—		$	—		$	—		$	—		$	21		$	138		Cash at year end 2008
Sources
Consumers Energy dividends/tax sharing	$	367		$	(125	)	$	(19	)	$	—		$	—		$	(7	)	$	—		$	216
Enterprises		16			—			—			(34	)		—			—			13			(5	)
Sources	$	383		$	(125	)	$	(19	)	$	(34	)	$	—		$	(7	)	$	13		$	211		Net cash provided by operating activities
Uses
Interest and preferred dividends	$	(136	)	$	125		$	—		$	—		$	11		$	—		$	—		$	—
Overhead and Federal tax payments		(19	)		—			19			—			—			—			—			—
Pension Contributions		(7	)		—			—			7			—			—			—			—
Equity infusions		(100	)		—			—			27			—			—			(82	)		(155	)
Uses (a)	$	(292	)	$	125		$	19		$	34		$	11		$	—		$	(82	)	$	(185	)	Net cash provided by investing activities
Cash flow	$	91		$	—		$	—		$	—		$	11		$	(7	)	$	(69	)	$	26		Cash flow from operating and investing activities
Financing and dividends
New Issues	$	473		$	—		$	—		$	—		$	(11	)	$	7		$	71		$	540
Retirements		(473	)		—			—			—			—			—			—			(473	)
Net short-term financing		(80	)		—			—			—			—			—			—			(80	)
Other		8			—			—			—			—			—			—			8
Common dividend		(113	)		—			—			—			—			—			—			(113	)
Financing	$	(185	)	$	—		$	—		$	—		$	(11	)	$	7		$	71		$	(118	)	Net cash provided by financing activities
Net change in cash	$	(94	)	$	—		$	—		$	—		$	—		$	—		$	2		$	(92	)	Net change in cash
Changes in Cash included in asset held for sale	$	—		$	—		$	—		$	—		$	—		$	—		$	5		$	5		Changes in Cash included in asset held for sale
Cash at year end 2009	$	23		$	—		$	—		$	—		$	—		$	—		$	28		$	51		Cash at year end 2009

(a) Includes other and roundings

2009 A-4

Consolidated CMS Energy
2009 Consolidation of Consumers Energy and CMS Energy Parent Statements of Cash Flow (in millions) (unaudited)

							Eliminations/Reclassifications to Arrive at the
							Consolidated Statement of Cash Flows
Statements of Cash Flows							Consumers			Equity
	Consumers			CMS Parent			Common Dividend			Infusions to			Consolidated Statements of Cash Flows
Description	Amount			Amount			as Financing			Consumers			Amount			Description
Cash at year end 2008	$	69		$	138		$	—		$	—		$	207		Cash at year end 2008
Net cash provided by operating activities	$	922		$	211		$	(285	)	$	—		$	848		Net cash provided by operating activities
Net cash provided by investing activities		(850	)		(185	)		—			100			(935	)	Net cash provided by investing activities
Cash flow from operating and investing activities	$	72		$	26		$	(285	)	$	100		$	(87	)	Cash flow from operating and investing activities
Net cash provided by financing activities	$	(102	)	$	(118	)	$	285		$	(100	)	$	(35	)	Net cash provided by financing activities
Net change in cash	$	(30	)	$	(92	)	$	—		$	—		$	(122	)	Net change in cash
Changes in Cash included in asset held for sale	$	—		$	5		$	—		$	—		$	5		Changes in Cash included in asset held for sale
Cash at year end 2009	$	39		$	51		$	—		$	—		$	90		Cash at year end 2009

2009 A-5

CMS Energy
Reconciliation of 2009 Free Cash Flow to GAAP Free Cash Flow
(unaudited)

	Amount
	(mils)
Statement of cash flows
Operating activities	$	848
Investing activities		(935	)
Cash flow from operating and investing activities	$	(87	)	SCF changes
Adjustments to reconcile free cash flow
Reclassify financing activities as operating
Capital lease payments	$	(23	)
Securitization debt retirements		(34	)
Preferred dividend payments		(13	)
Reclassify operating activities as financing
Accounts receivable financing		120
Preferred Stock Retirement as Operating		7
Reclassify Consolidating Cash		69
Total free cash flow before dividends	$	39		Free cash flow changes
Addback capex
Consumers Energy		885
Enterprises		—
Rounding		—
Free cash flow before dividends and capex	$	924

2009 A-6

Consumers Energy
2010 Forecasted Cash Flow GAAP Reconciliation (in millions) (unaudited)

				Reclassifications From Sources and Uses to Statement of Cash Flows
Presentation Sources and Uses				Tax			Interest			Pension			Accts/Rec			Capital			Securitization			Preferred			Common			Consolidated Statements of Cash Flows
	non-GAAP			Sharing			Payments			Contribution			Financing			Lease Pymts			Debt Pymts			Dividends			Dividends			GAAP
Description	Amount			Operating			as Operating			as Operating			as Operating			as Financing			as Financing			as Financing			as Financing			Amount			Description
Cash at year end 2009	$	39		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	39		Cash at year end 2009
Sources
Operating	$	1,410		$	(240	)	$	(224	)	$	—		$	—		$	23		$	35		$	—		$	—		$	1,004
Other working capital		(140	)		—			—			(19	)		(60	)		—			—			—			—			(219	)
Sources	$	1,270		$	(240	)	$	(224	)	$	(19	)	$	(60	)	$	23		$	35		$	—		$	—		$	785		Net cash provided by operating activities
Uses
Interest and preferred dividends	$	(226	)	$	—		$	224		$	—		$	—		$	—		$	—		$	2		$	—		$	—
Pension Contribution		(19	)		—			—			19			—			—			—			—			—			—
Capital expenditures		(1,090	)		—			—			—			—			—			—			—			—			(1,090	)
Dividends/tax sharing to CMS		(595	)		240			—			—			—			—			—			—			355			—
Uses	$	(1,930	)	$	240		$	224		$	19		$	—		$	—		$	—		$	2		$	355		$	(1,090	)	Net cash provided by investing activities
Cash flow	$	(660	)	$	—		$	—		$	—		$	(60	)	$	23		$	35		$	2		$	355		$	(305	)	Cash flow from perating and investing activities
Financing
Equity	$	250		$	—		$	—		$	—		$	—		$	—		$	—		$	(2	)	$	—		$	248
New Issues		650			—			—			—			—			—			—			—			—			650
Retirements		(310	)		—			—			—			—			(23	)		(35	)		—			(355	)		(723	)
Other		(9	)		—			—			—			—			—			—			—			—			(9	)
Net short-term financing		65			—			—			—			60			—			—			—			—			125
Financing	$	646		$	—		$	—		$	—		$	60		$	(23	)	$	(35	)	$	(2	)	$	(355	)	$	291		Net cash provided by financing activities
Net change in cash	$	(14	)	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	(14	)	Net change in cash
Cash at year end 2010	$	25		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	25		Cash at year end 2010

2010 A-1

CMS Energy Parent
2010 Forecasted Cash Flow GAAP Reconciliation (in millions) (unaudited)

				Reclassifications From Sources and Uses to Statement of Cash Flows
Presentation Sources and Uses				Interest			Overheads &			Other			Preferred			Cash From			Consolidated Statements of Cash Flows
	non-GAAP			Payments			Tax Payments			Uses (a)			Dividends			Consolidated			GAAP
Description	Amount			as Operating			as Operating			as Operating			as Financing			Companies			Amount			Description
Cash at year end 2009	$	23		$	—		$	—		$	—		$	—		$	28		$	51		Cash at year end 2009
Sources
Consumers Energy dividends/tax sharing	$	595		$	(124	)	$	(40	)	$	—		$	—		$	—		$	431
Enterprises		35			—			—			(45	)		—			—			(10	)
Sources	$	630		$	(124	)	$	(40	)	$	(45	)	$	—		$	—		$	421		Net cash provided by operating activities
Uses
Interest and preferred dividends	$	(135	)	$	124		$	—		$	—		$	11		$	—		$	—
Overhead and Federal tax payments		(40	)		—			40			—			—			—			—
Pension Contributions		(1	)		—			—			1			—			—			—
Equity infusions		(250	)		—			—			44			—			(47	)		(253	)
Uses (a)	$	(470	)	$	124		$	40		$	45		$	11		$	(47	)	$	(297	)	Net cash provided by investing activities
Cash flow	$	160		$	—		$	—		$	—		$	11		$	(47	)	$	124		Cash flow from operating and investing activities
Financing and dividends
New Issues	$	300		$	—		$	—		$	—		$	(11	)	$	47		$	336
Retirements		(67	)		—			—			—			—			—			(67	)
Net short-term financing		(25	)		—			—			—			—			—			(25	)
Other		6			—			—			—			—			—			6
Common dividend		(137	)		—			—			—			—			—			(137	)
Financing	$	77		$	—		$	—		$	—		$	(11	)	$	47		$	113		Net cash provided by financing activities
Net change in cash	$	237		$	—		$	—		$	—		$	—		$	—		$	237		Net change in cash
Cash at year end 2010	$	260		$	—		$	—		$	—		$	—		$	28		$	288		Cash at year end 2010

(a) Includes other and roundings

2010 A-2

Consolidated CMS Energy
2010 Forecasted Consolidation of Consumers Energy and CMS Energy Parent Statements of Cash Flow (in millions) (unaudited)

							Eliminations/Reclassifications to Arrive at the
							Consolidated Statement of Cash Flows
Statements of Cash Flows								Consumers			Equity
	Consumers			CMS Parent			Common Dividend			Infusions to			Consolidated Statements of Cash Flows
Description	Amount			Amount			as Financing			Consumers			Amount			Description
Cash at year end 2009	$	39		$	51		$	—		$	—		$	90		Cash at year end 2009
Net cash provided by operating activities	$	785		$	421		$	(355	)	$	—		$	851		Net cash provided by operating activities
Net cash provided by investing activities		(1,090	)		(297	)		—			250			(1,137	)	Net cash provided by investing activities
Cash flow from operating and investing activities	$	(305	)	$	124		$	(355	)	$	250		$	(286	)	Cash flow from operating and investing activities
Net cash provided by financing activities	$	291		$	113		$	355		$	(250	)	$	509		Net cash provided by financing activities
Net change in cash	$	(14	)	$	237		$	—		$	—		$	223		Net change in cash
Cash at year end 2010	$	25		$	288		$	—		$	—		$	313		Cash at year end 2010

2010 A-3

CMS Energy
Reconciliation of 2010 Operating Cash Flow Target to GAAP Operating Activities
(unaudited)

	Amount
	(mils)
Consumers Operating (Consumers PTOI + Depreciation)	$	1,410
Enterprises (Project Cash Flows)		35
Operating Cash Flow	$	1,445		non-GAAP
Other operating activies including taxes, interest payments and working capital		(594	)
Net cash provided by operating activites	$	851		GAAP

2010 A-4