Exelon 2015 Annual Report Download - page 303

Table of Contents
Combined Notes to Consolidated Financial Statements—(Continued)
(Dollars in millions, except per share data unless otherwise noted)
ComEd
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2015 and 2014:
Average Service Life
(years) 2015 2014
Asset Category
Electric—transmission and distribution 5-80 $20,576 $18,884
Construction work in progress N/A 572 276
Other property, plant and equipment 38-50 64 65
Total property, plant and equipment 21,212 19,225
Less: accumulated depreciation 3,710 3,432
Property, plant and equipment, net $17,502 $15,793
(a) Includes buildings under capital lease with a net carrying value at December 31, 2015 and 2014 of $7 million and $8 million, respectively. The original cost basis of the buildings
was $8 million and total accumulated amortization was $1 million and $0.3 million as of December 31, 2015 and 2014, respectively.
(b) Includes land held for future use and non-utility property.
The annual depreciation provisions as a percentage of average service life for electric transmission and distribution assets were 3.03%,
3.05% and 2.97% for the years ended December 31, 2015, 2014 and 2013, respectively.
PECO
The following table presents a summary of property, plant and equipment by asset category as of December 31, 2015 and 2014:
Average Service Life
(years) 2015 2014
Asset Category
Electric—transmission and distribution 5-65 $ 7,230 $6,886
Gas—transportation and distribution 5-70 2,206 2,039
Common—electric and gas 5-50 631 618
Construction work in progress N/A 154 154
Other property, plant and equipment 50 21 21
Total property, plant and equipment 10,242 9,718
Less: accumulated depreciation 3,101 2,917
Property, plant and equipment, net $ 7,141 $6,801
(a) Represents land held for future use and non-utility property.
The following table presents the annual depreciation provisions as a percentage of average service life for each asset category.
Average Service Life Percentage by Asset Category 2015 2014 2013
Electric—transmission and distribution 2.39% 2.55% 2.73%
Gas 1.87% 1.84% 1.79%
Common—electric and gas 5.16% 5.16% 6.65%
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(a), (b)
(a)
Source: BALTIMORE GAS & ELECTRIC CO, 10-K, February 10, 2016 Powered by Morningstar® Document Research℠
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