Notes Payable to Banks, Commercial Paper, and Lines of Credit (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Short-Term Borrowings

Information concerning short-term borrowings for the past three years is shown below:

		As of December 31,
(In thousands)		2015		2014		2013
MGE Energy(a)
Available lines of credit	$	150,000	$	150,000	$	150,000
Short-term debt outstanding	$	-	$	7,000	$	-
Weighted-average interest rate		-%		0.20%		-%
During the year:
Maximum short-term borrowings	$	17,500	$	9,000	$	32,000
Average short-term borrowings	$	1,511	$	182	$	6,992
Weighted-average interest rate		0.17%		0.24%		0.18%
MGE
Available lines of credit	$	100,000	$	100,000	$	100,000
Commercial paper outstanding	$	-	$	7,000	$	-
Weighted-average interest rate		-%		0.20%		-%
During the year:
Maximum short-term borrowings	$	17,500	$	9,000	$	32,000
Average short-term borrowings	$	1,511	$	182	$	6,992
Weighted-average interest rate		0.17%		0.24%		0.18%

(a)MGE Energy short-term borrowings include MGE Energy and MGE lines of credit and MGE commercial paper.