The Duke Energy Registrants hold ownership interests in certain jointly owned generating facilities. The Duke Energy Registrants are entitled to shares of the generating capability and output of each unit equal to their respective ownership interests. The Duke Energy Registrants also pays their ownership share of additional construction costs, fuel inventory purchases and operating expenses, except in certain instances where agreements have been executed to limit certain joint owners' maximum exposure to the additional costs. The Duke Energy Registrants share of revenues and operating costs of the jointly owned generating facilities is included within the corresponding line in the Consolidated Statements of Operations. Each participant in the jointly owned facilities must provide its own financing, except in certain instances where agreements have been executed to limit certain joint owners' maximum exposure to the additional costs.

Duke Energy Carolinas, along with North Carolina Municipal Power Agency Number 1, North Carolina Electric Membership Corporation and Piedmont Municipal Power Agency, have joint ownership of Catawba, which is a facility operated by Duke Energy Carolinas.

Progress Energy Carolinas, along with North Carolina Eastern Municipal Power Agency, have joint ownership of Mayo Station, Harris, Brunswick and Roxboro Station Unit No. 4, which are facilities operated by Progress Energy Carolinas.

Progress Energy Florida, along with Seminole Electric Cooperative, Inc., City of Ocala, Orlando Utilities Commission, City of Gainesville, City of Leesburg, Kissimmee Utility Authority, Utilities Commission of the City of New Smyrna Beach, City of Alachua and City of Bushnell, have joint ownership of Crystal River Unit 3. Additionally, Progress Energy Florida is a joint owner of Intercession City Station Unit No. P11 with Georgia Power Company. These facilities are operated by Progress Energy Florida.

Duke Energy Ohio and subsidiaries of American Electric Power Company. Inc. and/or The AES Corporation jointly own electric generating units and related transmission facilities in Ohio and Kentucky.

Duke Energy Indiana and WVPA jointly own Vermillion Station. Additionally, Duke Energy Indiana is a joint-owner of Gibson Station Unit No. 5 with WVPA and Indiana Municipal Power Agency (IMPA), as well as a joint-owner with WVPA and IMPA of certain Indiana transmission property and local facilities. These facilities constitute part of the integrated transmission and distribution systems, which are operated and maintained by Duke Energy Indiana.

The following table presents the Duke Energy Registrants' share of jointly owned plant or facilities included on the Consolidated Balance Sheets.

				December 31, 2012
				Ownership		Property, Plant,		Accumulated		Construction Work
(in millions)				Share		and Equipment		Depreciation		in Progress
Duke Energy
	Duke Energy Carolinas
		Production:
			Catawba Nuclear Station (Units 1 and 2)^(a)	19.25	%	$	900	$	467	$	6
	Progress Energy
		Progress Energy Carolinas
		Production:
			Mayo Station^(a)	83.83			807		292		65
			Shearon Harris Nuclear Station^(a)	83.83			3,571		1,985		104
			Brunswick Nuclear Station^(a)	81.67			1,842		985		98
			Roxboro Station (Unit 4)^(a)	87.06			741		474		15
		Progress Energy Florida
		Production:
			Crystal River Nuclear Station (Unit 3)^(a)(b)	91.78			―		―		―
			Intercession City Station (Unit P11)^(a)(c)	66.67			24		13		1
	Duke Energy Ohio
		Production:
			Miami Fort Station (Units 7 and 8)^(d)	64.0			617		212		4
			W.C. Beckjord Station (Unit 6)^(d)(e)	37.5			―		―		―
			J.M. Stuart Station^(d)(f)	39.0			820		265		13
			Conesville Station (Unit 4)^(d)(f)	40.0			296		54		27
			W.M. Zimmer Station^(d)	46.5			1,354		552		3
			Killen Station^(d)(f)	33.0			310		142		2
			East Bend Station^(a)	69.0			445		231		9
		Transmission^(a)		Various			96		48		―
	Duke Energy Indiana
		Production:
			Gibson Station (Unit 5)^(a)	50.05			305		149		6
			Vermillion^(a)	62.5			153		56		―
		Transmission and local facilities^(a)		Various			3,517		1,521		―
	International and local facilities
		Production:
			Brazil - Canoas I and II^(g)	47.2			305		89		―

(a)		Included in USFE&G segment.
(b)		In February 2013, Duke Energy made the decision to retire Crystal River Unit 3. As of December 31, 2012, all costs associated with Crystal River Unit 3 are included within Regulatory assets on the Consolidated Balance Sheets of Duke Energy, Progress Energy and Progress Energy Florida. See Note 4 for additional information.
(c)		The co-owner of Intercession City Unit P11 has exclusive rights to the output of the unit during the months of June through September. Progress Energy Florida has the rights for the remainder of the year.
(d)		Included in Commercial Power segment.
(e)		In 2010, Duke Energy Ohio recorded impairment charges to write-down its share of W.C. Beckjord Station to fair value. See Note 12 for additional information.
(f)		Station is not operated by Duke Energy Ohio.
(g)		Included in International Energy segment.