Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2011

Property, Plant, and Equipment Disclsoure [Abstract]

3. Property, Plant, and Equipment - MGE Energy and MGE.

Property, plant, and equipment consisted of the following at December 31:

		MGE Energy				MGE
(In thousands)		2011		2010		2011		2010
Utility:
Electric	$	886,589	$	841,256	$	886,606	$	841,273
Gas		319,502		304,117		319,513		304,129
Total utility plant		1,206,091		1,145,373		1,206,119		1,145,402
Less: Accumulated depreciation and amortization		526,308		502,184		526,308		502,184
In-service utility plant, net		679,783		643,189		679,811		643,218
Nonregulated:
Nonregulated		307,182		232,754		306,650		232,595
Less: Accumulated depreciation and amortization		25,454		18,371		25,454		18,371
In-service nonregulated plant, net		281,728		214,383		281,196		214,224
Construction work in progress:
Utility construction work in progress		33,218		38,214		33,218		38,214
Nonregulated construction work in progress		837		72,221		837		72,221
Total property, plant, and equipment	$	995,566	$	968,007	$	995,062	$	967,877

MGE's utility plant is subject to the lien of its Indenture of Mortgage and Deed of Trust. As of December 31, 2011, there was $1.2 million of bonds outstanding under that indenture. See Footnote 9 for further discussion of the mortgage indenture.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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