SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2011

Notes to Financial Statements [Abstract]

Reconciliation of Great Plains Energy's basic and diluted earnings per share

	Three Months Ended				Year to Date
	September 30				September 30
	2011		2010		2011		2010
Income	(millions, except per share amounts)
Net income	$	126.6	$	132.0	$	172.3	$	216.7
Less: net income attributable to noncontrolling interest		0.1		-		-		0.1
Less: preferred stock dividend requirements		0.4		0.4		1.2		1.2
Earnings available for common shareholders	$	126.1	$	131.6	$	171.1	$	215.4
Common Shares Outstanding
Average number of common shares outstanding		135.7		135.2		135.6		135.1
Add: effect of dilutive securities		2.6		1.7		2.9		1.7
Diluted average number of common shares outstanding		138.3		136.9		138.5		136.8
Basic EPS	$	0.93	$	0.97	$	1.26	$	1.59
Diluted EPS	$	0.91	$	0.96	$	1.24	$	1.57