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Ember

Ember

Energy Think Tank

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The renewable revolution

New Capabilities

Key source for real-time electricity generation data

In 2004, it took the world an entire year to install one gigawatt of solar power. By 2025, that amount went online every single day—a pace that propelled global renewable capacity past 5,000 gigawatts by year-end. Science Magazine named this accelerating surge in renewable energy its 2025 Breakthrough of the Year, recognizing solar and wind eclipsing coal as the world's largest electricity source; yesterday, U.S. Energy Information Administration data confirmed renewables supplied a record 25.7% of U.S. electricity in 2025, generating 1,162 terawatt-hours—a 10% increase over 2024—with utility-scale solar up 34.5% and 53 gigawatts of new renewable capacity added.

Updated Feb 27