PROPERTY, PLANT, AND EQUIPMENT

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment

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



(Millions)	2013		2012
Electric utility	$	3,289.2	$	2,841.7
Natural gas utility	729.9		701.9
Total utility plant	4,019.1		3,543.6
Less: Accumulated depreciation	1,436.8		1,327.2
Net	2,582.3		2,216.4
Construction work in progress	285.2		130.2
Plant to be retired, net *	14.4		—
Net utility plant	2,881.9		2,346.6

Nonutility plant	15.2		15.2
Less: Accumulated depreciation	9.4		8.8
Net nonutility plant	5.8		6.4

Total property, plant, and equipment	$	2,887.7	$	2,353.0

In connection with the Consent Decree with the EPA, early retirement of the Weston 1, Pulliam 5, and Pulliam 6 generating units was probable at December 31, 2013. These units are currently included in rate base, and we continue to depreciate them on a straight-line basis using the composite depreciation rates approved by the PSCW. The amount presented above is net of accumulated depreciation. See Note 13, Commitments and Contingencies, for more information regarding the Consent Decree.

- 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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