Overview
- ISO New England lists roughly 31 GW of available capacity against a winter peak forecast of 21.1 GW, with normal-weather peak expected near 20 GW after last winter’s 19.6 GW.
- New York ISO projects nearly 30 GW of resources to meet a 24.2 GW peak and warns generators have struggled to access adequate fuel during very cold snaps.
- ISO-NE is using a new Probabilistic Energy Adequacy Tool in 2025 to quantify potential energy shortfall risks from extreme weather.
- NYISO says it is coordinating with state agencies, neighboring grid operators and natural gas industry groups to mitigate winter reliability risks.
- Southwest Power Pool reports no major concerns and is releasing its Winter 2025/2026 Readiness Forecast, while NERC’s Winter Reliability Assessment is expected Tuesday.