How Much New Electricity Was Clean?
This chart shows how much of each year’s increase in global electricity generation came from clean sources. Darker green marks years when clean power covered more of new demand; readings above 100% occur when clean output rises while fossil generation falls.
What does it show?
Clean sources supplied at least half of global electricity-demand growth in 11 of the past 25 years—and more than all of it in 2025 as fossil generation declined.
Methodology
Adds Ember’s annual change in clean and fossil electricity generation, then divides clean-generation growth by their combined change when total global generation increased. A reading above 100% means clean generation grew while fossil generation fell; it does not mean the electricity system was more than 100% clean. Years when combined generation declined are labeled “demand fell” because the ratio would not answer the intended question. The measure uses generation, not capacity, investment, consumption by sector, or lifecycle emissions, and revisions to Ember’s country data can change historical values.