Rate Matters (Tables)

6 Months Ended

Jun. 30, 2014

Regulatory Assets Not Yet Being Recovered

Regulatory Assets Pending Final Regulatory Approval

	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in millions)
Regulatory Assets Currently Earning a Return
Storm Related Costs	$	21	$	22
Ohio Economic Development Rider	—		14
Other Regulatory Assets Pending Final Regulatory Approval	7		4
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	99		161
IGCC Pre-Construction Costs	21		—
Expanded Net Energy Charge - Coal Inventory	14		21
Mountaineer Carbon Capture and Storage Product Validation Facility	13		13
Ormet Special Rate Recovery Mechanism	10		36
Indiana Under-Recovered Capacity Costs	—		22
Other Regulatory Assets Pending Final Regulatory Approval	34		37
Total Regulatory Assets Pending Final Regulatory Approval	$	219	$	330

Appalachian Power Co [Member]

Regulatory Assets Not Yet Being Recovered

	APCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
West Virginia Vegetation Management Program	$	6,458	$	—
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	65,206		65,206
IGCC Pre-Construction Costs	20,528		—
Expanded Net Energy Charge - Coal Inventory	13,686		20,528
Mountaineer Carbon Capture and Storage Product Validation Facility	13,264		13,264
Virginia Demand Response Program Costs	6,767		5,012
Virginia Environmental Rate Adjustment Clause	1,941		2,440
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,287		1,287
Transmission Agreement Phase-In	—		3,313
Other Regulatory Assets Pending Final Regulatory Approval	1,109		168
Total Regulatory Assets Pending Final Regulatory Approval	$	130,246	$	111,218

	I&M
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Cook Plant Turbine	$	5,024	$	3,452
Stranded Costs on Abandoned Plants	3,897		3,896
Indiana Deferred Cook Plant Life Cycle Management Project Costs	—		4,093
Indiana Under-Recovered Capacity Costs	—		21,945
Storm Related Costs	—		1,836
Other Regulatory Assets Pending Final Regulatory Approval	1,549		164
Total Regulatory Assets Pending Final Regulatory Approval	$	10,470	$	35,386

	OPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
Ohio Economic Development Rider	$	—	$	13,854
Regulatory Assets Currently Not Earning a Return
Ormet Special Rate Recovery Mechanism	10,483		35,631
Storm Related Costs	386		57,589
Total Regulatory Assets Pending Final Regulatory Approval	$	10,869	$	107,074

	PSO
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	$	15,589	$	18,743
Other Regulatory Assets Pending Final Regulatory Approval	1,079		845
Total Regulatory Assets Pending Final Regulatory Approval	$	16,668	$	19,588

	SWEPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Rate Case Expenses	$	7,989	$	7,934
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,143		1,143
Other Regulatory Assets Pending Final Regulatory Approval	2,101		1,951
Total Regulatory Assets Pending Final Regulatory Approval	$	11,233	$	11,028

Indiana Michigan Power Co [Member]

Regulatory Assets Not Yet Being Recovered

	APCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
West Virginia Vegetation Management Program	$	6,458	$	—
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	65,206		65,206
IGCC Pre-Construction Costs	20,528		—
Expanded Net Energy Charge - Coal Inventory	13,686		20,528
Mountaineer Carbon Capture and Storage Product Validation Facility	13,264		13,264
Virginia Demand Response Program Costs	6,767		5,012
Virginia Environmental Rate Adjustment Clause	1,941		2,440
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,287		1,287
Transmission Agreement Phase-In	—		3,313
Other Regulatory Assets Pending Final Regulatory Approval	1,109		168
Total Regulatory Assets Pending Final Regulatory Approval	$	130,246	$	111,218

	I&M
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Cook Plant Turbine	$	5,024	$	3,452
Stranded Costs on Abandoned Plants	3,897		3,896
Indiana Deferred Cook Plant Life Cycle Management Project Costs	—		4,093
Indiana Under-Recovered Capacity Costs	—		21,945
Storm Related Costs	—		1,836
Other Regulatory Assets Pending Final Regulatory Approval	1,549		164
Total Regulatory Assets Pending Final Regulatory Approval	$	10,470	$	35,386

	OPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
Ohio Economic Development Rider	$	—	$	13,854
Regulatory Assets Currently Not Earning a Return
Ormet Special Rate Recovery Mechanism	10,483		35,631
Storm Related Costs	386		57,589
Total Regulatory Assets Pending Final Regulatory Approval	$	10,869	$	107,074

	PSO
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	$	15,589	$	18,743
Other Regulatory Assets Pending Final Regulatory Approval	1,079		845
Total Regulatory Assets Pending Final Regulatory Approval	$	16,668	$	19,588

	SWEPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Rate Case Expenses	$	7,989	$	7,934
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,143		1,143
Other Regulatory Assets Pending Final Regulatory Approval	2,101		1,951
Total Regulatory Assets Pending Final Regulatory Approval	$	11,233	$	11,028

Ohio Power Co [Member]

Regulatory Assets Not Yet Being Recovered

	APCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
West Virginia Vegetation Management Program	$	6,458	$	—
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	65,206		65,206
IGCC Pre-Construction Costs	20,528		—
Expanded Net Energy Charge - Coal Inventory	13,686		20,528
Mountaineer Carbon Capture and Storage Product Validation Facility	13,264		13,264
Virginia Demand Response Program Costs	6,767		5,012
Virginia Environmental Rate Adjustment Clause	1,941		2,440
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,287		1,287
Transmission Agreement Phase-In	—		3,313
Other Regulatory Assets Pending Final Regulatory Approval	1,109		168
Total Regulatory Assets Pending Final Regulatory Approval	$	130,246	$	111,218

	I&M
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Cook Plant Turbine	$	5,024	$	3,452
Stranded Costs on Abandoned Plants	3,897		3,896
Indiana Deferred Cook Plant Life Cycle Management Project Costs	—		4,093
Indiana Under-Recovered Capacity Costs	—		21,945
Storm Related Costs	—		1,836
Other Regulatory Assets Pending Final Regulatory Approval	1,549		164
Total Regulatory Assets Pending Final Regulatory Approval	$	10,470	$	35,386

	OPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
Ohio Economic Development Rider	$	—	$	13,854
Regulatory Assets Currently Not Earning a Return
Ormet Special Rate Recovery Mechanism	10,483		35,631
Storm Related Costs	386		57,589
Total Regulatory Assets Pending Final Regulatory Approval	$	10,869	$	107,074

	PSO
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	$	15,589	$	18,743
Other Regulatory Assets Pending Final Regulatory Approval	1,079		845
Total Regulatory Assets Pending Final Regulatory Approval	$	16,668	$	19,588

	SWEPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Rate Case Expenses	$	7,989	$	7,934
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,143		1,143
Other Regulatory Assets Pending Final Regulatory Approval	2,101		1,951
Total Regulatory Assets Pending Final Regulatory Approval	$	11,233	$	11,028

Public Service Co Of Oklahoma [Member]

Regulatory Assets Not Yet Being Recovered

	APCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
West Virginia Vegetation Management Program	$	6,458	$	—
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	65,206		65,206
IGCC Pre-Construction Costs	20,528		—
Expanded Net Energy Charge - Coal Inventory	13,686		20,528
Mountaineer Carbon Capture and Storage Product Validation Facility	13,264		13,264
Virginia Demand Response Program Costs	6,767		5,012
Virginia Environmental Rate Adjustment Clause	1,941		2,440
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,287		1,287
Transmission Agreement Phase-In	—		3,313
Other Regulatory Assets Pending Final Regulatory Approval	1,109		168
Total Regulatory Assets Pending Final Regulatory Approval	$	130,246	$	111,218

	I&M
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Cook Plant Turbine	$	5,024	$	3,452
Stranded Costs on Abandoned Plants	3,897		3,896
Indiana Deferred Cook Plant Life Cycle Management Project Costs	—		4,093
Indiana Under-Recovered Capacity Costs	—		21,945
Storm Related Costs	—		1,836
Other Regulatory Assets Pending Final Regulatory Approval	1,549		164
Total Regulatory Assets Pending Final Regulatory Approval	$	10,470	$	35,386

	OPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
Ohio Economic Development Rider	$	—	$	13,854
Regulatory Assets Currently Not Earning a Return
Ormet Special Rate Recovery Mechanism	10,483		35,631
Storm Related Costs	386		57,589
Total Regulatory Assets Pending Final Regulatory Approval	$	10,869	$	107,074

	PSO
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	$	15,589	$	18,743
Other Regulatory Assets Pending Final Regulatory Approval	1,079		845
Total Regulatory Assets Pending Final Regulatory Approval	$	16,668	$	19,588

	SWEPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Rate Case Expenses	$	7,989	$	7,934
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,143		1,143
Other Regulatory Assets Pending Final Regulatory Approval	2,101		1,951
Total Regulatory Assets Pending Final Regulatory Approval	$	11,233	$	11,028

Southwestern Electric Power Co [Member]

Regulatory Assets Not Yet Being Recovered

	APCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
West Virginia Vegetation Management Program	$	6,458	$	—
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	65,206		65,206
IGCC Pre-Construction Costs	20,528		—
Expanded Net Energy Charge - Coal Inventory	13,686		20,528
Mountaineer Carbon Capture and Storage Product Validation Facility	13,264		13,264
Virginia Demand Response Program Costs	6,767		5,012
Virginia Environmental Rate Adjustment Clause	1,941		2,440
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,287		1,287
Transmission Agreement Phase-In	—		3,313
Other Regulatory Assets Pending Final Regulatory Approval	1,109		168
Total Regulatory Assets Pending Final Regulatory Approval	$	130,246	$	111,218

	I&M
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Cook Plant Turbine	$	5,024	$	3,452
Stranded Costs on Abandoned Plants	3,897		3,896
Indiana Deferred Cook Plant Life Cycle Management Project Costs	—		4,093
Indiana Under-Recovered Capacity Costs	—		21,945
Storm Related Costs	—		1,836
Other Regulatory Assets Pending Final Regulatory Approval	1,549		164
Total Regulatory Assets Pending Final Regulatory Approval	$	10,470	$	35,386

	OPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Earning a Return
Ohio Economic Development Rider	$	—	$	13,854
Regulatory Assets Currently Not Earning a Return
Ormet Special Rate Recovery Mechanism	10,483		35,631
Storm Related Costs	386		57,589
Total Regulatory Assets Pending Final Regulatory Approval	$	10,869	$	107,074

	PSO
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Storm Related Costs	$	15,589	$	18,743
Other Regulatory Assets Pending Final Regulatory Approval	1,079		845
Total Regulatory Assets Pending Final Regulatory Approval	$	16,668	$	19,588

	SWEPCo
	June 30,		December 31,
	2014		2013
Noncurrent Regulatory Assets	(in thousands)
Regulatory Assets Currently Not Earning a Return
Rate Case Expenses	$	7,989	$	7,934
Mountaineer Carbon Capture and Storage Commercial Scale Facility	1,143		1,143
Other Regulatory Assets Pending Final Regulatory Approval	2,101		1,951
Total Regulatory Assets Pending Final Regulatory Approval	$	11,233	$	11,028