Clean Electricity Share by Country 2025

This chart compares the 20 highest clean-electricity shares among the 79 countries that generated at least 10 TWh in 2025 and have the required observations in the report dataset accompanying Ember's Global Electricity Review 2026, published on 21 April 2026. It is a fixed report snapshot, not a live ranking or a complete ranking of every country.

Ember's clean category combines renewables and nuclear power. The measure is their share of domestic electricity generation in the same year, not the share of all energy use, electricity consumption or installed capacity. Clean is the dataset's classification; it does not mean that every source has zero lifecycle emissions or no environmental impact.

The report describes its 2025 generation figures as estimates based on monthly changes and annual baselines, with dedicated annual sources for some countries. They may be revised later. Countries are selected using unrounded total generation of at least 10 TWh, then ranked by their unrounded clean shares. Values displayed here are rounded to one decimal using half-up rounding. Equal displayed shares can therefore conceal small underlying differences.

Costa Rica, Ethiopia and Paraguay are each reported at 100% in this snapshot, followed by Norway at 99.0% and Sweden at 98.8%. These are the report's estimates at its stated precision, not proof that fossil generation was physically absent in every hour. Countries missing a 2025 observation or below the 10 TWh threshold are excluded. Open the linked Supporting materials page for the exact report CSV and methodology; newer yearly downloads can give different values.