image/svg+xml0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 2018 2020 2022 2024 natural gas coal nuclear wind solar other forecast 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 2018 2020 2022 2024 forecast U.S. electricity generation by energy source (2018 2024) annual generation, in billion kilowatthours share of total generation