Consumers Energy (CMS-PB) 10-Q 2017 Q3 Quarterly report

Exhibit 12.1

CMS Energy Corporation

Ratios 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, 2017			2016			2015			2014			2013			2012
Earnings as defined1
Pretax income from continuing operations	$	664		$	826		$	796		$	729		$	756		$	622
Exclude equity basis subsidiaries	(8		)	(2		)	(2		)	(1		)	(2		)	(7		)
Fixed charges as defined2	351			469			421			432			423			414
Earnings as defined2	$	1,007		$	1,293		$	1,215		$	1,160		$	1,177		$	1,029
Fixed charges as defined1
Interest on long-term debt	$	304		$	411		$	386		$	393		$	385		$	372
Estimated interest portion of lease rental	21			29			21			21			21			21
Other interest charges	27			31			16			19			18			23
Fixed charges as defined2	$	352		$	471		$	423		$	433		$	424		$	416
Preferred dividends	-			-			-			-			-			-
Combined fixed charges and preferred dividends	$	352		$	471		$	423		$	433		$	424		$	416
Ratio of earnings to fixed charges	2.86			2.75			2.87			2.68			2.78			2.47
Ratio of earnings to combined fixed charges and preferred dividends	2.86			2.75			2.87			2.68			2.78			2.47

1Earnings and fixed charges as defined in instructions for Item 503 of Regulation S-K.

2Preferred 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.