Contingencies and Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Cost Recovery Clauses

The balance of each regulatory clause recovery on the balance sheet follows:

Regulatory Clause	Balance Sheet Line Item	September 30, 2018		December 31, 2017
		(in millions)
Rate CNP Compliance	Deferred under recovered regulatory clause revenues	$	—	$	17
	Under recovered regulatory clause revenues	7		—
Rate CNP PPA	Deferred under recovered regulatory clause revenues	30		12
Retail Energy Cost Recovery	Deferred under recovered regulatory clause revenues	58		25
	Under recovered regulatory clause revenues	41		—
Natural Disaster Reserve	Other regulatory liabilities, deferred	24		38

Regulatory clause recovery balances included in the balance sheets are as follows:

Regulatory Clause	Balance Sheet Line Item	September 30, 2018		December 31, 2017
		(in millions)
Fuel Cost Recovery	Under recovered regulatory clause revenues	$	—	$	22
Fuel Cost Recovery	Other regulatory liabilities, current	23		—
Purchased Power Capacity Recovery	Other regulatory liabilities, current	4		—
Purchased Power Capacity Recovery	Under recovered regulatory clause revenues	—		2
Environmental Cost Recovery(*)	Other regulatory liabilities, current	13		—
Environmental Cost Recovery(*)	Under recovered regulatory clause revenues	—		2
Energy Conservation Cost Recovery	Other regulatory liabilities, current	2		—

(*) At September 30, 2018 and December 31, 2017, the over and under recovered balances, respectively, included in the balance sheets represents the current portion of the regulatory assets associated with projected environmental expenditures of approximately $8 million and $13 million, respectively, net of the over recovered environmental cost recovery balance of approximately $21 million and $11 million, respectively.

Cost and Schedule

Georgia Power's approximate proportionate share of the remaining estimated capital cost to complete Plant Vogtle Units 3 and 4 by the expected in-service dates of November 2021 and November 2022, respectively, is as follows:

	(in billions)
Base project capital cost forecast(a)(b)	$	8.0
Construction contingency estimate	0.4
Total project capital cost forecast(a)(b)	8.4
Net investment as of September 30, 2018(b)	(4.3		)
Remaining estimate to complete(a)	$	4.1

(a) Excludes financing costs expected to be capitalized through AFUDC of approximately $350 million.

(b) Net of $1.7 billion received from Toshiba under the Guarantee Settlement Agreement and approximately $188 million in related Customer Refunds.