Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2020

Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

Schedule II
MGE Energy, Inc. and Madison Gas and Electric Company
Valuation and Qualifying Accounts
			Additions
		Balance at Beginning of Period	Charged to Costs and Expenses	Charged to Other Accounts	Net Accounts Written Off(a)		Balance at End of Period
Fiscal Year 2018:
Accumulated provision for uncollectibles	$	3,174,945	1,065,970	320,400	(1,407,653)	$	3,153,662
Fiscal Year 2019:
Accumulated provision for uncollectibles	$	3,153,662	1,614,943	20,160	(1,530,496)	$	3,258,269
Fiscal Year 2020:
Accumulated provision for uncollectibles	$	3,258,269	5,164,943 (b)	26,400	(1,373,047)	$	7,076,565

(a)Net of recovery of amounts previously written off

(b)As of December 31, 2020, MGE had deferred $3.8 million of incremental COVID-19-related costs as a regulatory asset. See Footnote 8 of the Notes to Consolidated Financial Statements in this Report for further information.