New England wind generation averaged 68% higher in the first nine months
EIA said regional capacity grew 47% in 2026 to 2.5 GW and September generation reached 668.9 GWh.
Event / data period: 2026-10
Published: · Updated:
The U.S. Energy Information Administration reported on October 14 that monthly wind generation in ISO New England averaged 68% more in the first nine months of 2026 than in the same period of 2025. September output reached 668.9 gigawatt-hours, the highest monthly level of the year and more than double September 2025.
EIA said regional wind capacity increased 47% so far in 2026 to 2.5 gigawatts. Generation totaled 4,619 GWh in the first nine months, 1.9% more than the full-year 2025 total of 4,533 GWh. Because those totals cover different lengths of time, the comparison is not a year-over-year growth rate. EIA based its analysis on hourly grid data.
Data
Wind generation indicators
EIA analysis of ISO New England data, October 14, 2026.
- · Occurred
September monthly generation: 668.9 GWh
EIA said this was the highest monthly level of 2026 and more than double September 2025.
- · Occurred
Daily generation peaked at 47.3 GWh
The October 6 value was 1% above the previous record on September 10.
Methodology
Volumes are in GWh and remain in prose because there is no registered GWh unit or ISO-NE geography. Percentage comparisons specify their basis and period; the nine-month total versus full-year 2025 is not an annual growth comparison.
Updated:
Subjects and places
Subject proposals
- Wind powerSuggested
- Subject suggested from the title or summary: wind generationwww.eia.gov ↗
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- United States · Place role: Coverage · Place type: Country or area · Location precision: RegionalEvidence
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