Table 8.6.B. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area,
2013 Actual, 2014-2018 Projected
 

Summer Peak Load (Megawatts)
  Eastern Interconnection ERCOT Western Interconnection All Interconnections
Period FRCC NPCC Balance of Eastern Region MAPP MISO PJM SERC SPP TRE WECC Contiguous U.S.
Projected 2014 45,759 60,324 470,798 4,852 127,248 157,279 131,833 49,587 68,096 132,409 777,386
Projected 2015 46,719 60,996 476,870 5,028 128,571 160,259 133,302 49,710 69,057 134,351 787,992
Projected 2016 47,615 61,703 484,413 5,374 130,101 162,470 135,476 50,993 70,014 136,128 799,873
Projected 2017 48,501 62,287 489,882 5,500 131,242 164,195 137,246 51,700 70,871 137,654 809,196
Projected 2018 49,147 62,788 494,529 5,690 132,376 165,479 138,717 52,267 71,806 139,169 817,438

 

Winter Peak Load (Megawatts)
  Eastern Interconnection ERCOT Western Interconnection All Interconnections
Period FRCC NPCC Balance of Eastern Region MAPP MISO PJM SERC SPP TRE WECC Contiguous U.S.
Projected 2014 / 2015 44,636 45,823 404,510 5,324 102,787 133,509 126,392 36,498 52,837 110,644 658,449
Projected 2015 / 2016 45,668 47,550 409,546 5,457 104,414 135,526 127,446 36,702 53,719 112,163 668,646
Projected 2016 / 2017 46,415 46,130 417,475 5,818 107,352 137,308 128,874 38,123 53,719 112,988 676,727
Projected 2017 / 2018 47,165 46,144 421,426 5,949 108,414 138,314 130,201 38,549 54,579 113,948 683,263
Projected 2018 / 2019 47,692 46,119 425,522 6,176 109,506 139,213 131,447 39,181 55,441 114,846 689,620

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.
Peak load represents an hour of a day during the associated peak period.
The Summer peak period begins on June 1 and extends through September 30.
The Winter peak period begins October 1 and extends through May 31.
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."