Six line charts showing the monthly U.S. operational coal-fired power capacity, by year the outlook was projected. Outlooks are from the years 2018 to 2023. Overall, the capacity was significantly lower in 2023 than prior outlooks estimated. in 2018 there were 279 gigawatts available, but by 2030, the 2023 projections show there will be 154.6 GW.