June 21, 2025

Solar power drives record low grid demand in New England

Demand on the ISO New England market hit a record low demand of about 5,320 MW in April, with solar and other non-emitting resources supplying over 80% of the region’s electricity at noon.

Duck Curve Deepens: New England's grid experienced record low daytime electricity demand in the first five months of 2025, a phenomenon known as the "duck curve," caused by increasing behind-the-meter solar (BTM PV) generation. Out of 151 days, 69 exhibited this pattern, surpassing previous years. Solar Surge: The increasing prevalence of BTM PV systems allows consumers to generate their own ...

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Short Summary:

New England’s grid experienced record low daytime electricity demand in the first five months of 2025, a phenomenon known as the “duck curve,” caused by increasing behind-the-meter solar (BTM PV) generation. Out of 151 days, 69 exhibited this pattern, surpassing previous years.

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Energy Market Intelligence

Tags: Distributed Energy Resources, Net Load, Solar

Entities: ISO New England Inc.

Markets: ISO New England (ISO-NE)

Regions: Northeast

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Regulators: FERC

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ISO New England Inc. – Report