Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Instruments [Abstract]

Values of open positions for derivative instruments

	June 30					December 31
	2012					2011
	Notional					Notional
	Contract		Fair			Contract		Fair
	Amount		Value			Amount		Value
Great Plains Energy	(millions)
Futures contracts
Cash flow hedges	$	1.6	$	(0.5	)	$	2.0	$	(0.5	)
Non-hedging derivatives		16.2		(3.0	)		23.6		(5.0	)
Forward contracts
Non-hedging derivatives		69.5		6.7			97.3		7.8
Option contracts
Non-hedging derivatives		-		-			0.4		-
KCP&L
Futures contracts
Cash flow hedges	$	1.6	$	(0.5	)	$	2.0	$	(0.5	)

Fair value of open derivative positions, gross values before netting agreements and netting of cash collatral

Great Plains Energy
	Balance Sheet	Asset Derivatives		Liability Derivatives
June 30, 2012	Classification	Fair Value		Fair Value
Derivatives Designated as Hedging Instruments		(millions)
Commodity contracts	Derivative instruments	$	-	$	0.5
Derivatives Not Designated as Hedging Instruments
Commodity contracts	Derivative instruments		6.7		3.0
Total Derivatives		$	6.7	$	3.5
December 31, 2011
Derivatives Designated as Hedging Instruments
Commodity contracts	Derivative instruments	$	-	$	0.5
Derivatives Not Designated as Hedging Instruments
Commodity contracts	Derivative instruments		7.8		5.0
Total Derivatives		$	7.8	$	5.5

KCP&L
	Balance Sheet	Asset Derivatives		Liability Derivatives
June 30, 2012	Classification	Fair Value		Fair Value
Derivatives Designated as Hedging Instruments		(millions)
Commodity contracts	Derivative instruments	$	-	$	0.5
December 31, 2011
Derivatives Designated as Hedging Instruments
Commodity contracts	Derivative instruments	$	-	$	0.5

Gain (loss) recognized in other comprehensive income or earnings for interest rate and commodity hedges

Great Plains Energy
Derivatives in Cash Flow Hedging Relationship
					Gain (Loss) Reclassified from
					Accumulated OCI into Income
					(Effective Portion)
	Amount of Gain
	(Loss) Recognized
	in OCI on Derivatives				Income Statement
	(Effective Portion)				Classification	Amount
Three Months Ended June 30, 2012	(millions)					(millions)
Interest rate contracts		$	-		Interest charges	$	(5.0	)
Commodity contracts			0.1		Fuel		-
Income tax benefit			-		Income tax benefit		1.9
Total		$	0.1		Total	$	(3.1	)
Year to Date June 30, 2012
Interest rate contracts		$	-		Interest charges	$	(10.1	)
Commodity contracts			(0.2	)	Fuel		-
Income tax benefit			0.1		Income tax benefit		3.9
Total		$	(0.1	)	Total	$	(6.2	)
Three Months Ended June 30, 2011
Interest rate contracts		$	(5.8	)	Interest charges	$	(3.9	)
Commodity contracts			(0.1	)	Fuel		-
Income tax benefit			2.2		Income tax benefit		1.4
Total		$	(3.7	)	Total	$	(2.5	)
Year to Date June 30, 2011
Interest rate contracts		$	(5.3	)	Interest charges	$	(6.8	)
Commodity contracts			(0.1	)	Fuel		-
Income tax benefit			2.1		Income tax benefit		2.6
Total		$	(3.3	)	Total	$	(4.2	)

KCP&L
Derivatives in Cash Flow Hedging Relationship
					Gain (Loss) Reclassified from
					Accumulated OCI into Income
					(Effective Portion)
	Amount of Gain
	(Loss) Recognized
	in OCI on Derivatives				Income Statement
	(Effective Portion)				Classification	Amount
Three Months Ended June 30, 2012	(millions)					(millions)
Interest rate contracts		$	-		Interest charges	$	(2.2	)
Commodity contracts			0.1		Fuel		-
Income tax benefit			-		Income tax benefit		0.9
Total		$	0.1		Total	$	(1.3	)
Year to Date June 30, 2012
Interest rate contracts		$	-		Interest charges	$	(4.4	)
Commodity contracts			(0.2	)	Fuel		-
Income tax benefit			0.1		Income tax benefit		1.7
Total		$	(0.1	)	Total	$	(2.7	)
Three Months Ended June 30, 2011
Interest rate contracts		$	-		Interest charges	$	(2.2	)
Commodity contracts			(0.1	)	Fuel		-
Income tax benefit			-		Income tax benefit		0.8
Total		$	(0.1	)	Total	$	(1.4	)
Year to Date June 30, 2011
Interest rate contracts		$	-		Interest charges	$	(4.4	)
Commodity contracts			(0.1	)	Fuel		-
Income tax benefit			-		Income tax benefit		1.7
Total		$	(0.1	)	Total	$	(2.7	)

Gain (loss) recognized in a regulatory balance sheet account or earnings for utility commodity hedges

Great Plains Energy
Derivatives in Regulatory Account Relationship
					Gain (Loss) Reclassified from
					Regulatory Account
	Amount of Gain (Loss)
	Recognized on Regulatory				Income Statement
	Account on Derivatives				Classification	Amount
Three Months Ended June 30, 2012		(millions)				(millions)
Commodity contracts		$	0.3		Fuel	$	(2.0	)
Total		$	0.3		Total	$	(2.0	)
Year to Date June 30, 2012
Commodity contracts		$	(2.7	)	Fuel	$	(2.7	)
Total		$	(2.7	)	Total	$	(2.7	)
Three Months Ended June 30, 2011
Commodity contracts		$	(1.0	)	Fuel	$	(1.0	)
Total		$	(1.0	)	Total	$	(1.0	)
Year to Date June 30, 2011
Commodity contracts		$	(1.3	)	Fuel	$	(2.9	)
Total		$	(1.3	)	Total	$	(2.9	)

Accumulated other comprehensive income related to cash flow hedges

	Great Plains Energy						KCP&L
	June 30			December 31			June 30			December 31
	2012			2011			2012			2011
	(millions)
Current assets	$	10.9		$	11.3		$	10.9		$	11.3
Current liabilities		(79.1	)		(89.5	)		(57.8	)		(62.5	)
Noncurrent liabilities		(0.3	)		(0.2	)		(0.3	)		(0.2	)
Deferred income taxes		26.7			30.5			18.4			20.0
Total	$	(41.8	)	$	(47.9	)	$	(28.8	)	$	(31.4	)