Table 8.6.B. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area,
2011 Actual, 2012-2016 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.
Actual 2011 44,968 63,390 486,131 4,726 102,819 158,043 164,726 55,817 68,416 119,565 782,469
Projected 2012 45,613 60,735 469,943 4,790 94,279 153,782 162,655 54,436 66,076 140,739 783,106
Projected 2013 46,270 61,461 475,911 4,995 94,279 156,254 165,203 55,180 66,928 130,223 780,793
Projected 2014 46,857 62,189 484,823 5,117 96,129 159,842 168,003 55,732 69,721 131,129 794,719
Projected 2015 47,758 62,991 491,292 5,230 96,929 163,168 170,199 55,766 73,054 132,917 808,012
Projected 2016 48,594 63,745 497,704 5,503 97,811 165,691 172,336 56,364 75,366 137,984 823,393

 

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.
Actual 2011 / 2012 40,117 45,234 404,280 4,803 86,844 122,563 150,850 39,220 50,100 108,459 648,190
Projected 2012 / 2013 46,864 47,187 404,781 5,133 75,085 130,222 154,027 40,315 52,909 111,889 663,630
Projected 2013 / 2014 46,367 47,439 408,000 5,228 72,572 132,160 156,326 41,714 51,734 110,047 663,587
Projected 2014 / 2015 47,568 47,669 418,739 5,374 78,143 134,771 158,442 42,010 52,063 111,994 678,034
Projected 2015 / 2016 48,172 47,878 423,670 5,454 78,773 136,911 160,492 42,040 54,972 113,622 688,313
Projected 2016 / 2017 48,797 48,109 429,389 5,720 79,521 138,567 162,937 42,644 56,028 114,492 696,815

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."