ISO-NE has significantly lowered its peak load and net energy expectations in its final 2025 10-year load forecast but still predicts the region’s peak load to grow by over 2 GW by 2034.

ISO-NE plans to cut its winter peak load projection for 2033 by 7.2% and its summer peak projection by 1.8%, ISO-NE told the NEPOOL Reliability Committee.

As part of a major overhaul of its annual load forecasting process, ISO-NE has significantly scaled back its electrification forecast for electric vehicles and heat pumps.

ISO-NE expects to have adequate resources to meet its projected 24,553-MW peak load this summer, the RTO announced as part of its summer outlook.

ISO-NE is predicting that New England’s peak load will increase by about 10%, and electricity consumption by 17%, by 2033, according to its 2024 Capacity, Energy, Loads and Transmission report.

ISO-NE is decreasing its peak load projections slightly for the next 10 years due to slower-than-expected EV adoption, managed charging programs and changes to its modeling of partial building electrification.

ISO-NE anticipates little risk of energy shortfall in the summer of 2032.