Table 8.7.A. Net Energy for Load by North American Electric Reliability Corporation Assessment Area,
2002 - 2012, Actual
 

Net Energy (Thousands of Megawatthours)
  Eastern Interconnection ERCOT Western Interconnection All Interconnections
Period FRCC NPCC Balance of Eastern Region ECAR MAAC MAIN MAPP MISO MRO PJM RFC SERC SPP TRE WECC Contiguous U.S.
2002 211,116 286,199 2,301,321 567,897 273,907 279,264 -- -- 150,058 -- -- 835,319 194,876 280,269 666,696 3,745,601
2003 219,021 288,791 2,255,233 545,109 276,600 267,068 -- -- 153,918 -- -- 826,964 185,574 283,868 664,754 3,711,667
2004 220,335 292,725 2,313,180 553,236 283,646 274,760 -- -- 152,975 -- -- 856,734 191,829 289,146 682,053 3,797,439
2005 226,544 303,607 2,385,461 -- -- -- -- -- 216,633 -- 1,005,226 962,054 201,548 299,225 685,624 3,900,461
2006 230,115 294,319 2,361,721 -- -- -- -- -- 222,748 -- 926,279 1,011,173 201,521 305,672 720,087 3,911,914
2007 232,405 301,766 2,432,475 -- -- -- -- -- 217,602 -- 954,700 1,049,298 210,875 307,064 739,018 4,012,728
2008 226,874 297,362 2,406,730 -- -- -- -- -- 227,536 -- 936,201 1,035,390 207,603 312,401 745,691 3,989,058
2009 225,966 285,625 2,293,617 -- -- -- -- -- 213,797 -- 880,377 997,142 202,301 308,278 718,694 3,832,180
2010 233,034 294,276 2,456,553 -- -- -- 30,691 585,274 -- 712,731 -- 870,367 257,491 319,097 713,177 4,016,137
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
2012 220,943 290,914 2,391,745 -- -- -- 29,362 497,906 -- 781,247 -- 824,640 258,590 324,860 726,862 3,955,323

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
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.
N/A - Not Available
Source: U.S. Energy Information Administration, Form EIA-411, "Coordinated Bulk Power Supply and Demand Program Report."