

	December 31
	2013								2012
	KCP&L			GMO			Great Plains Energy		KCP&L		GMO		Great Plains Energy
Regulatory Assets	(millions)
Taxes recoverable through future rates	$	111.0		$	25.4		$	136.4	$	114.7	$	23.7	$	138.4
Loss on reacquired debt	7.1		^(a)	1.5		^(a)	8.6		8.1		2.0		10.1
Cost of removal	1.0			—			1.0		2.8		—		2.8
Asset retirement obligations	34.8			16.0			50.8		31.5		14.9		46.4
Pension and post-retirement costs	310.0		^(b)	91.2		^(b)	401.2		541.2		129.7		670.9
Deferred customer programs	50.2		^(c)	21.8		^(d)	72.0		49.8		24.6		74.4
Rate case expenses	3.6		^(e)	0.6		^(f)	4.2		7.5		1.7		9.2
Fuel recovery mechanism	10.8		^(e)	12.8		^(e)	23.6		8.9		16.9		25.8
Acquisition transition costs	12.9		^(g)	11.0		^(g)	23.9		18.7		15.5		34.2
Derivative instruments	—			—			—		—		3.7		3.7
Iatan No. 1 and common facilities depreciation and carrying costs	15.3		^(h)	5.7		^(h)	21.0		15.9		5.9		21.8
Iatan No. 2 construction accounting costs	29.3		⁽ⁱ⁾	16.0		⁽ⁱ⁾	45.3		30.6		16.2		46.8
Kansas property tax surcharge	4.0		^(e)	—			4.0		5.4		—		5.4
Solar rebates	13.0		^(e)	32.3		^(e)	45.3		5.8		10.0		15.8
Voluntary separation program	3.4		^(j)	—			3.4		4.3		—		4.3
Other	7.7		^(e)	1.3		^(e)	9.0		8.0		2.9		10.9
Total	$	614.1		$	235.6		$	849.7	$	853.2	$	267.7	$	1,120.9
Regulatory Liabilities
Emission allowances	$	74.0		$	—		$	74.0	$	78.0	$	0.1	$	78.1
Asset retirement obligations	86.2			—			86.2		63.1		—		63.1
Pension	—			—			—		1.5		44.6		46.1
Cost of removal	—			68.1		^(k)	68.1		—		64.0		64.0
Other	8.1			27.6			35.7		10.4		22.1		32.5
Total	$	168.3		$	95.7		$	264.0	$	153.0	$	130.8	$	283.8

^(a)Amortized over the life of the related new debt issuances or the remaining lives of the old debt issuances if no new debt was issued.

^(b) Represents unrecognized gains and losses, prior service and transition costs that will be recognized in future net periodic pension and post-retirement costs, pension settlements amortized over various periods and financial and regulatory accounting method differences that will be eliminated over the life of the pension plans. Of these amounts, $288.5 million and $57.0 million for KCP&L and GMO, respectively, are not included in rate base and are amortized over various periods.

^(c) $15.4 million not included in rate base and amortized over various periods.

^(d)$2.1 million not included in rate base and amortized over various periods.

^(e)Not included in rate base and amortized over various periods.

^(f)Not included in rate base and amortized through 2014.

^(g)Not included in rate base and amortized through 2016.

^(h)Included in rate base and amortized through 2038.

⁽ⁱ⁾Included in rate base and amortized through 2058.

^(j)Not included in rate base and amortized through 2017.

^(k)Estimated cumulative net provision for future removal costs.