The story of the energy transition in 2025 was one of fast-paced growth and global adoption. That trend was always likely to continue this year, but the war in Iran may be giving it a fresh geopolitical push. Renewable power accounted for 85.6% of all new energy capacity installed worldwide last year, according to a report released Thursday by the International Renewable Energy Agency (IRENA), a UN body. Renewables now make up a record 49.4% of the world’s energy capacity, up from 46.3% in 2024. That record-breaking streak has largely come down to plummeting costs for solar panels and wind…