Vectren 2010 Annual Report Download - page 79

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77
3. Utility & Nonutility Plant
The original cost of Utility Plant, together with depreciation rates expressed as a percentage of original cost, follows:
(In millions)
Original Cost
Depreciation
Rates as a
Percent of
Original Cost Original Cost
Depreciation
Rates as a
Percent of
Original Cost
Gas utility plant 2,410.2$ 3.6% 2,299.1$ 3.5%
Electric utility plant 2,258.6 3.4% 2,113.3 3.4%
Common utility plant 49.7 3.1% 48.7 2.9%
Construction work in progress 73.2 - 140.3 -
Total original cost 4,791.7$ 4,601.4$
At December 31,
20092010
SIGECO and Alcoa Generating Corporation (AGC), a subsidiary of ALCOA, own the 300 MW Unit 4 at the Warrick Power Plant
as tenants in common. SIGECO's share of the cost of this unit at December 31, 2010, is $176.2 million with accumulated
depreciation totaling $59.2 million. The construction work-in-progress balance associated with SIGECO’s ownership interest
totaled $3.1 million at December 31, 2010. AGC and SIGECO also share equally in the cost of operation and output of the unit.
SIGECO's share of operating costs is included in Other operating expenses in the Consolidated Statements of Income.
Nonutility plant, net of accumulated depreciation and amortization follows:
(In millions) 2010 2009
Coal mine development costs & equipment 196.9$ 188.6$
Computer hardware & software 114.5 119.9
Land & buildings 112.8 115.1
Vehicles & equipment 46.9 43.7
All other 17.2 15.3
Nonutility plant - net 488.3$ 482.6$
At December 31,
Nonutility plant is presented net of accumulated depreciation and amortization totaling $385.5 million and $334.3 million as of
December 31, 2010 and 2009, respectively. For the years ended December 31, 2010, 2009, and 2008, the Company
capitalized interest totaling $2.1 million, $6.0 million, and $3.7 million, respectively, on nonutility plant construction projects.