In March 2025, renewables accounted for 24.4% of US electricity generation, while fossil fuels dropped below 50%, marking a historic shift in the energy landscape.
The US energy sector has reached a pivotal moment, with renewables now contributing over 24% of total electricity generation, while fossil fuels have fallen below 50% for the first time. This shift, driven by rapid solar and wind growth, underscores the accelerating transition to cleaner energy sources.
A historic shift in US energy generation
March 2025 marked a turning point for the US energy sector, as renewables reached a record 24.4% of total electricity generation, while fossil fuels dropped below 50% for the first time. According to Ember’s latest report, this milestone reflects a decade of rapid growth, particularly in solar power, which has surged from just 1% in 2015 to 9.2% in 2025.
The role of policy and infrastructure
The Inflation Reduction Act continues to play a crucial role in accelerating clean energy adoption, with 2025 on track to be another record year. Recent grid upgrades and battery storage expansions have been key enablers of higher renewable penetration. The Department of Energy reported in May 2025 that US battery storage capacity doubled in 2024, reaching 30 GW, which has significantly eased renewable integration.
Regional disparities in renewable adoption
While Texas set a new wind power record in April 2025, supplying 45% of state demand (ERCOT), other regions like the Southeast have seen slower solar growth. These disparities highlight the ongoing challenges of policy alignment and infrastructure development across different states.
