In our January Short-Term Energy Outlook (STEO), we forecast that increasing electricity generation from renewable energy resources such as solar and wind will reduce generation from fossil fuel-fired power plants over the next two years. The forecast share of generation for U.S. non-hydropower renewable sources, including solar and wind, grows from 13% in 2021 to 17% in 2023. We forecast that the share of generation from natural gas will fall from 37% in 2021 to 34% by 2023 and the coal share will decline from 23% to 22%.