A global energy and climate think tank, Ember, has reviewed global energy transition developments during 2025. Solar and wind have surpassed global electricity demand growth for the first sustained period. This shift has indicated a structural change in global electricity systems. Solar has delivered the largest increase in power generation during 2025. Its growth has been more than three times higher than any other source. As per Ember, renewables have generated more electricity than coal over a sustained period. Solar and wind together supplied 17.6% of global electricity in Q1–Q3 2025. This share has risen from 15.2% during the same period last year. Low-carbon sources have collectively reached 43% of global electricity generation. Solar deployment has expanded across Central Europe, Africa, and BRICS countries. BRICS nations have generated more than half of global solar output. Battery cost declines have supported progress toward continuous solar generation. Global renewable capacity additions were projected at 793 GW in 2025, an 11% increase year-on-year. Prior to this analysis, Ember found that adding storage had increased solar profitability in Indonesia, Viet Nam and the Philippines.