Independent System Operator – New England (ISO-NE)

Annual Capacity and Energy Information

ISO-NE Installed Capacity

ISO-NE Generation 2018

Wind and Solar Peak Generation Records

Amount Date Wind Solar Source Notes
  11/18/2018 1,079 MW   AWEA Blog  

Other Relevant Data

When conditions are right, the ISO sees a significant reduction in regional electricity demand from behind-the-meter (BTM) solar photovoltaic (PV) installations. During a heatwave in July 2018, BTM solar generation peaked each day at around 1:00 p.m., reducing demand from the regional power system by approximately 2,000 MW. []

On a cool, sunny day in April 2018, BTM solar output reached an estimated record high at 1:00 p.m. and drove down electricity demand on the regional power system by 2,300 MW. The result was a regional first: New Englanders used more grid electricity while they slept that night than during the middle of the day. []

Total wind generation share in 2018 for ISO-NE was 3%. [AWEA Blog]