Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2014

Public Utilities, General Disclosures [Line Items]

Schedule of Potential Plant Retirements

		March 31, 2014
		Duke Energy		Duke Energy Carolinas(b)		Progress Energy		Duke Energy Florida(c)		Duke Energy Ohio(d)		Duke Energy Indiana(e)
Capacity (in MW)			2,297		200		873		873		556		668
Remaining net book value (in millions)(a)		$	255	$	13	$	112	$	112	$	9	$	121
(a)	Included in Property, plant and equipment, net as of March 31, 2014, on the Condensed Consolidated Balance Sheets.
(b)	Includes Lee Units 1 and 2. Excludes 170 MW Lee Unit 3 that is expected to be converted to gas in 2014. Duke Energy Carolinas expects to retire or convert these units by December 2020 in conjunction with a settlement agreement associated with the Cliffside Unit 6 air permit.
(c)	Includes Crystal River Units 1 and 2.
(d)	Includes Beckjord Units 5 and 6 and Miami Fort Unit 6. Beckjord units have no remaining book value.
(e)	Includes Wabash River Units 2 through 6. Wabash River Unit 6 is being evaluated for potential conversion to gas. Duke Energy Indiana committed to retire or convert these units by June 2018 in conjunction with a settlement agreement associated with the Edwardsport air permit.
Duke Energy continues to evaluate the potential need to retire these coal-fired generating facilities earlier than the current estimated useful lives, and plans to seek regulatory recovery for amounts that would not be otherwise recovered when any of these assets are retired. However, such recovery, including recovery of carrying costs on remaining book values, could be subject to future regulatory approvals and therefore cannot be assured.

Duke Energy Florida [Member]

Public Utilities, General Disclosures [Line Items]

Schedule of FPSC Settlement Agreement Customer Refunds

	March 31, 2014
					Remaining Amount to be Refunded
(in millions)	Total		Refunded to date			2014		2015		2016
2012 Settlement refund	$	288	$	164		$	104	$	10	$	10
Retirement decision refund		100		―			―		40		60
NEIL proceeds		490		367			123		―		―
Total customer refunds	$	878		531			227		50		70
Accelerated regulatory asset recovery		(130)		(8)			(29)		(37)		(56)
Net customer refunds		748	$	523		$	198	$	13	$	14

Duke Energy Ohio [Member]

Public Utilities, General Disclosures [Line Items]

Schedule of MISO Exit Fee Obligations

(in millions)		Balance at December 31, 2013		Provision / Adjustments		Cash Reductions		Balance at March 31, 2014(a)
Duke Energy Ohio		$	95	$	1	$	(1)	$	95
(a)	As of March 31, 2014, $74 million is recorded as a Regulatory asset on Duke Energy Ohio's Condensed Consolidated Balance Sheets.