Table 8.7.B. Net Energy for Load by North American Electric Reliability Corporation Assessment Area,
2011 Actual, 2012-2016 Projected
 

Net Energy (Thousands of Megawatthours)
  Eastern Interconnection ERCOT Western Interconnection All Interconnections
Period FRCC NPCC Balance of Eastern Region MAPP MISO PJM SERC SPP TRE WECC Contiguous U.S.
Actual 2011 224,064 292,482 2,401,810 29,233 521,692 739,754 852,843 258,288 335,000 727,793 3,981,149
Projected 2012 224,337 299,770 2,437,050 30,677 473,467 821,786 848,918 262,201 328,367 729,167 4,018,691
Projected 2013 227,095 303,502 2,472,380 32,343 484,994 831,898 856,123 267,022 335,401 738,883 4,077,261
Projected 2014 230,481 305,860 2,481,450 33,213 462,645 851,726 864,431 269,434 349,131 750,432 4,117,354
Projected 2015 235,490 308,245 2,503,523 33,805 455,469 870,636 874,983 268,631 363,112 760,884 4,171,254
Projected 2016 239,191 310,730 2,538,651 34,762 458,284 888,097 886,165 271,343 376,102 772,063 4,236,737

Notes:
NERC region and reliability assessment area maps are provided on EIA's Electricity Reliability web page: http://www.eia.gov/cneaf/electricity/page/eia411/eia411.html
Projected data are updated annually.
Net Energy for Load represents net Balancing Authority Area generation, plus energy received from other Balancing Authority Areas, less energy delivered to other Balancing Authority Areas through interchange.
Historically the MRO, RFC, SERC, and SPP regional boundaries were altered as utilities changed reliability organizations. The historical data series for these regions have not been adjusted. Instead, the Balance of Eastern Region category was introduced to provide a consistent trend of the Eastern interconnection.
ECAR, MAAC, and MAIN dissolved at the end of 2005. Many of the former utility members joined RFC. Reliability First Corporation (RFC) came into existence on January 1, 2006. RFC submitted a consolidated filing covering the historical NERC regions of ECAR, MAAC, and MAIN.
Source: U.S. Energy Information Administration, Form EIA-411, "Coordinated Bulk Power Supply and Demand Program Report."