Exelon 2015 Annual Report Download - page 17

Table of Contents
• Midwest represents operations in the western half of PJM, which includes portions of Illinois, 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, and the remaining parts of Illinois, Indiana, Michigan and Ohio not covered by
PJM; and parts of Montana, Missouri and Kentucky (approximately 37% of capacity).
• New England represents the operations within ISO-NE covering the states of Connecticut, Maine, Massachusetts, New Hampshire,
Rhode Island and Vermont (approximately 7% of capacity).
• New York represents the operations within ISO-NY, which covers the state of New York in its entirety (approximately 3% of capacity).
• ERCOT represents operations within Electric Reliability Council of Texas, covering most of the state of Texas (approximately 11% of
capacity).
• Other Power Regions is an aggregate of regions not considered individually significant (approximately 6% of capacity).
See Note 25—Segment Information of the Combined Notes to Consolidated Financial Statements for additional information on revenues from
external customers and revenues net of purchased power and fuel expense for each of Generation’s reportable segments.
Nuclear Facilities
Generation has ownership interests in fourteen nuclear generating stations currently in service, consisting of 24 units with an aggregate of
19,460 MW of capacity. Generation wholly owns all of its nuclear generating stations, except for Quad Cities Generating Station (75% ownership),
Peach Bottom Generating Station (50% ownership), and Salem Generating Station (Salem) (42.59% ownership), which are consolidated on
Exelon’s and Generation’s financial statements relative to its proportionate ownership interest in each unit. In addition, Generation owns a 50.01%
interest, collectively, in the CENG generating stations (Calvert Cliffs, Nine Mile Point [excluding LIPA’s 18% ownership interest in Nine Mile Point
Unit 2] and R.E. Ginna) which are 100% consolidated on Exelon and Generation’s financial statements as of April 1, 2014. See Note 5—
Investment in Constellation Energy Nuclear Group, LLC of the Combined Notes to Consolidated Financial Statements for additional information.
Generation’s nuclear generating stations are all operated by Generation, with the exception of the two units at Salem, which are operated by
PSEG Nuclear, LLC (PSEG Nuclear), an indirect, wholly owned subsidiary of PSEG. In 2015, 2014 and 2013 electric supply (in GWh) generated
from the nuclear generating facilities was 68%, 67% and 57%, respectively, of Generation’s total electric supply, which also includes fossil,
hydroelectric and renewable generation and electric supply purchased for resale. The majority of this output was dispatched to support
Generation’s wholesale and retail power marketing activities. See ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF OPERATIONS for further discussion of Generation’s electric supply sources.
Nuclear Operations. Capacity factors, which are significantly affected by the number and duration of refueling and non-refueling outages,
can have a significant impact on Generation’s results of operations. As the largest generator of nuclear power in the United States, Generation can
negotiate favorable terms for the materials and services that its business requires. Generation’s operations from its nuclear plants have historically
had minimal environmental impact and the plants have a safe operating history.
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Source: BALTIMORE GAS & ELECTRIC CO, 10-K, February 10, 2016 Powered by Morningstar® Document Research℠
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