Solar Energy Eclipses Coal for the First Time in US History
Washington, Wednesday, 10 June 2026.
Solar power made history in May 2026 by generating 12.8% of U.S. electricity, officially overtaking coal. This signals a permanent structural shift toward renewable energy in the national grid.
A Monumental Shift in the Power Grid
In May 2026, solar power generated an unprecedented 45.5 terawatt-hours (TWh) of electricity in the United States, capturing 12.8% of the national power mix [7]. This performance officially eclipsed coal, which produced 43.4 TWh to account for 12.2% of the grid’s output, meaning solar generated 4.839 percent more electricity than coal during this period [7]. According to data released by the clean energy think tank Ember, which analyzed figures from the U.S. Energy Information Administration (EIA), this marks the first calendar month in history where solar outproduced the legacy fossil fuel [2]. Consequently, solar energy now stands as the third-largest source of electricity in the country, trailing only natural gas and nuclear power [3][7].
Infrastructure Growth Meets Political Headwinds
The physical expansion of the U.S. solar infrastructure provides the foundation for these generation milestones. During the first quarter of 2026, solar and battery storage systems accounted for a staggering 91% of all new electricity-generating capacity added to the U.S. grid [4][6]. The industry installed 7.8 gigawatts (GW) of new solar capacity between January and March 2026, pushing the nation past a total of 6 million cumulative installations [4][6]. Interestingly, the deployment of this technology transcends partisan lines; states won by President Donald Trump accounted for 74% of all new solar capacity installed in the first quarter, with Texas emerging as the fastest-growing market [6][7].
Economic Fundamentals and Future Projections
The economic realities underpinning solar’s rise are rooted in plummeting equipment costs and massive capital investments. Historical data from the Department of Energy shows that global photovoltaic module prices neared record lows of approximately $0.10 per watt in late 2024, driven by global overcapacity [5]. By the end of 2025, the U.S. solar market had achieved a valuation of $69.1 billion, with a new solar project being installed every 59 seconds throughout the year [4]. As of June 9, 2026, cumulative U.S. solar capacity reached 287.7 GW—enough to power roughly 48 million homes—and the industry supported over 280,000 domestic jobs [4].
Navigating Bottlenecks and Market Adjustments
However, the transition is not entirely devoid of friction. The solar industry is currently grappling with severe permitting bottlenecks and grid interconnection delays. As of June 9, 2026, there are 457 solar and storage projects waiting on permits, facing potential delays or outright cancellations due to infrastructure constraints and political pressures [6]. Additionally, the residential solar sector is experiencing a contraction, with projections indicating a 21% decline in the U.S. residential market over the course of 2026 [6]. This follows a broader 27% year-over-year decline in total capacity installed during the first quarter of 2026, which saw 7.8 GWdc added compared to previous highs [4].