UK based Ember has released an analysis showing that solar power met 61% of the increase in US electricity demand in 2025. US electricity demand rose by 135 TWh, a 3.1% increase, while solar generation increased by 83 TWh, a 27% rise compared with 2024 and the largest absolute growth among electricity sources. That increase alone supplied nearly two thirds, or 61%, of total electricity demand growth across the country. Solar growth has aligned with the regions recording the highest demand increases, with Texas and the Midwest each meeting 81% of demand growth and the Mid-Atlantic meeting 33%. The analysis showed that solar generation met all daytime demand growth between 10:00 and 18:00 ET and, supported by batteries, contributed to demand growth between 18:00 and 02:00 ET. In California, utility-scale solar and battery generation rose by 58% over six years, while generation at the peak solar hour increased by 8%. Most of the new solar generation in 2025 was absorbed by rising electricity demand rather than displacing existing electricity supply.