Monthly wind generation in the first nine months of 2026 was an average of 68% higher compared with the same period in 2025 in ISO New England, the U.S. Energy Information Administration recently reported.
It said that monthly generation from wind was highest in September of this year at 668.9 gigawatthours (GWh), more than double generation levels from September 2025 and nearly 10% higher than this year’s previous high in March.
Increased wind generation is the result of growing capacity additions in the ISO-NE region, EIA said.
Regional wind capacity increased 47% so far in 2026 to 2.5 gigawatts, following a 12% increase in capacity in 2025. Daily wind generation peaked on October 6, 2026, at about 47.3 GWh, 1% higher than the previous peak that occurred on September 10, 2026.
Total wind generation for the first nine months of 2026 was 4,619 GWh, 1.9% more than last year’s annual total of 4,533 GWh, EIA said.
