National Drought Mitigation Center
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National Drought Mitigation Center
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Reduced hydropower production in northern New England
9/15/2025 8:23:43 AM



CATEGORIES:
Energy
Water Supply & Quality
AFFECTED AREAS:
Maine
New Hampshire
Vermont

Start Date: 8/1/2025 - End Date: 9/15/2025
Hydro dams in Maine, Vermont, and New Hampshire were struggling to generate power due to drought. Average daily hydropower generation went from more than 23,000 megawatt hours in June to about half that in August, according to ISO-New England records. When hydropower production is down, power must come from other sources to compensate. In New England, natural gas is often the first option for generating additional power, per the operations manager for FirstLight. Maine Public (Bangor, Maine), Sep 15, 2025
Sources