ComEd 2015 Annual Report Download - page 427

Table of Contents
Combined Notes to Consolidated Financial Statements—(Continued)
(Dollars in millions, except per share data unless otherwise noted)
• Midwest represents operations in the western half of PJM, which includes portions of Illinois, Pennsylvania, Indiana, Ohio, Michigan,
Kentucky and Tennessee, and the United States footprint of MISO, excluding MISO’s Southern Region, which covers all or most of
North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, the remaining parts of Illinois, Indiana, Michigan and Ohio not
covered by PJM, and parts of Montana, Missouri and Kentucky.
• New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire,
Rhode Island and Vermont.
• New York represents operations within ISO-NY, which covers the state of New York in its entirety.
• ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas.
• Other Power Regions:
• South represents operations in the FRCC, MISO’s Southern Region, and the remaining portions of the SERC not included within
MISO or PJM, which includes all or most of Florida, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Tennessee, North
Carolina, South Carolina and parts of Missouri, Kentucky and Texas. Generation’s South region also includes operations in the
SPP, covering Kansas, Oklahoma, most of Nebraska and parts of New Mexico, Texas, Louisiana, Missouri, Mississippi and
Arkansas.
• West represents operations in the WECC, which includes California ISO, and covers the states of California, Oregon, Washington,
Arizona, Nevada, Utah, Idaho, Colorado, and parts of New Mexico, Wyoming and South Dakota.
• Canada represents operations across the entire country of Canada and includes AESO, OIESO and the Canadian portion of MISO.
The CODMs for Exelon and Generation evaluate the performance of Generation’s power marketing activities and allocate resources based
on revenue net of purchased power and fuel expense (RNF). Generation believes that RNF is a useful measurement of operational performance.
RNF is not a presentation defined under GAAP and may not be comparable to other companies’ presentations or deemed more useful than the
GAAP information provided elsewhere in this report. Generation’s operating revenues include all sales to third parties and affiliated sales to
ComEd, PECO, and BGE. Purchased power costs include all costs associated with the procurement and supply of electricity including capacity,
energy and ancillary services. Fuel expense includes the fuel costs for Generation’s owned generation and fuel costs associated with tolling
agreements. The results of Generation’s other business activities are not regularly reviewed by the CODM and are therefore not classified as
operating segments or included in the regional reportable segment amounts. These activities include natural gas, as well as other miscellaneous
business activities that are not significant to Generation’s overall operating revenues or results of operations. Further, Generation’s unrealized
mark-to-market gains and losses on economic hedging activities and its amortization of certain intangible assets and liabilities relating to
commodity contracts recorded at fair value from mergers and acquisitions are also not included in the regional reportable segment amounts.
Exelon and Generation do not use a measure of total assets in making decisions regarding allocating resources to or assessing the performance
of these reportable segments.
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Source: BALTIMORE GAS & ELECTRIC CO, 10-K, February 10, 2016 Powered by Morningstar® Document Research℠
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