Exhibit 12.1

CMS ENERGY CORPORATION

Ratio of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends

				In Millions, Except Ratios
	Nine Months Ended			Year Ended December 31
	September 30, 2012			2011	2010		2009	2008		20071
Earnings as defined2
Pretax income from
continuing operations		$   513		$     606	$     590		$   335	$   440		$  (317	)
Exclude equity basis subsidiaries		(6	)	(1)	(2	)	2	(1	)	(22	)
Fixed charges as defined3		311		437	449		456	429		489
Earnings as defined3		$   818		$  1,042	$  1,037		$   793	$   868		$   150
Fixed charges as defined2
Interest on long-term debt		$   280		$     396	$     394		$   383	$   371		$   415
Estimated interest portion of lease rental		15		18	16		17	25		23
Other interest charges		17		25	42		58	35		53
Fixed charges as defined3		312		439	452		458	431		491
Preferred dividends		-		-	13		17	17		12
Combined fixed charges and
preferred dividends		$   312		$     439	$     465		$   475	$   448		$   503
Ratio of earnings to fixed charges		2.62		2.37	2.29		1.73	2.01		-
Ratio of earnings to combined fixed
charges and preferred dividends		2.62		2.37	2.23		1.67	1.94		-

NOTES:

1 For the year ended December 31, 2007, fixed charges exceeded earnings by $341 million and combined fixed charges and preferred dividends exceeded earnings by $353 million.  Earnings as defined include $204 million in asset impairment charges and a $279 million charge for an electric sales contract termination.

2 Earnings and fixed charges as defined in instructions for Item 503 of Regulation S-K.

3 Preferred dividends of a consolidated subsidiary are included in fixed charges, but excluded from earnings as defined because the amount was not deducted in arriving at pretax income from continuing operations.