Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2015

Public Utilities, General Disclosures [Line Items]

Schedule of Potential Plant Retirements

The table below contains the net carrying value of generating facilities planned for retirement or included in recent IRPs as evaluated for potential retirement due to a lack of requisite environmental control equipment. Dollar amounts in the table below are included in Net property, plant and equipment on the Condensed Consolidated Balance Sheets.

	September 30, 2015
					Duke		Duke
	Duke		Progress		Energy		Energy
	Energy		Energy(b)		Florida(b)		Indiana(c)
Capacity (in MW)	1,541		873		873		668
Remaining net book value (in millions)(a)	$	207	$	121	$	121	$	86

(a) Remaining net book value amounts presented exclude any capitalized asset retirement costs related to closure of ash basins.

(b) Includes Crystal River Units 1 and 2.

(c) Includes Wabash River Units 2 through 6. Wabash River Unit 6 is being evaluated for potential conversion to natural gas. Duke Energy Indiana committed to retire or convert the Wabash River Units 2 through 6 by June 2018 in conjunction with a settlement agreement associated with the Edwardsport air permit.