Equity Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity compensation expense and associated income tax benefits

The following table summarizes Great Plains Energy's and KCP&L's equity compensation expense and the associated income tax benefit.

	Three Months Ended September 30				Year to Date September 30
	2012		2011		2012		2011
Great Plains Energy	(millions)
Compensation expense	$	1.2	$	1.2	$	4.0	$	4.5
Income tax benefit	0.4		0.4		1.7		1.8
KCP&L
Compensation expense	$	0.8	$	0.8	$	2.9	$	3.1
Income tax benefit	0.3		0.2		1.3		1.2

Performance share activity

Performance adjustment represents the number of shares of common stock related to performance shares ultimately issued that can vary from the number of performance shares initially granted depending on Great Plains Energy's performance over a stated period of time.

	Performance Shares			Grant Date Fair Value*
Beginning balance		442,042			$	21.06
Granted		164,158			19.02
Forfeited		(74,923	)		20.06
Performance adjustment		(160,717	)
Ending balance		370,560			22.97

* weighted-average

Restricted stock activity

Restricted stock activity year to date September 30, 2012, is summarized in the following table.

	Nonvested Restricted Stock			Grant Date Fair Value*
Beginning balance		386,183			$	17.06
Granted and issued		164,660			19.73
Vested		(206,838	)		15.78
Forfeited		(67,816	)		19.49
Ending balance		276,189			19.01

* weighted-average