ACQUISITIONS AND DISPOSITIONS (Tables)

3 Months Ended

Mar. 31, 2020

Business Combinations [Abstract]

Schedule of Construction Projects

Project Facility	Resource	Approximate Nameplate Capacity (MW)	Location	Actual/Expected COD	PPA Contract Period
Projects Under Construction as of March 31, 2020
Reading(a)	Wind	200	Osage and Lyon Counties, KS	May 2020	12 years
Skookumchuck(b)	Wind	136	Lewis and Thurston Counties, WA	Second half of 2020	20 years

(a)

In 2018, Southern Power purchased 100% of the membership interests of the Reading facility pursuant to a joint development arrangement. Southern Power may enter into a tax equity partnership, in which case it would then own 100% of the Class B membership interests. The ultimate outcome of this matter cannot be determined at this time.

Disposal Groups, Including Discontinued Operations

Plants Nacogdoches (sold in June 2019) and Mankato represented individually significant components of Southern Power; therefore, pre-tax income for these components for the three months ended March 31, 2020 and 2019 is presented below:

	Three Months Ended March 31,
	2020		2019
	(in millions)
Southern Power's earnings before income taxes:(*)
Plant Nacogdoches	N/A		$	6
Plant Mankato	$	2	$	1

(*)

Earnings before income taxes for components reflect the cessation of depreciation and amortization on the long-lived assets being sold upon classification as held for sale in November 2018 and April 2019 for Plant Mankato and Plant Nacogdoches, respectively.