Solar and wind power curtailments are rising in California

The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation as it faces the rapid growth of wind and solar power in California.

Market prices for Renewable Fuel Standard credits are falling

The prices of ethanol (D6) and biomass-based diesel (D4) renewable identification number (RIN) credits�the compliance mechanism used for the Renewable Fuel Standard (RFS) program administered by the U.S. Environmental Protection Agency (EPA)�each fell by more than one third between September 1 and October 16, our data shows. As of October 16, biomass-based diesel RINs (D4 […]

Average U.S. natural gas bills expected to decrease this winter

We forecast lower average natural gas bills for U.S. consumers that heat their homes primarily with natural gas this winter heating season (November 1 to March 31) compared with last winter. The lower residential winter natural gas expenditures we forecast in the 2023 Winter Fuels Outlook supplement to our October Short-Term Energy Outlook (STEO) are […]

U.S. summer nuclear outages rose in 2023, returning to 2021 levels

Outages of U.S. nuclear generating capacity averaged 3.1 gigawatts (GW) per day during the summer of 2023 (June 1 through August 31), a return to 2021 levels. Capacity outages this past summer exceeded those in summer 2022 by more than 25%. Nuclear capacity outages peaked in June because some reactors were still offline at the […]