The Summer Solar Boom Is Rewriting the Energy Story
On a sweltering Tuesday in Gapan City, Nueva Ecija—about four hours outside Manila—Philippine President Ferdinand Marcos Jr. stood before a gleaming field of 1,373 megawatts of solar panels and declared something that would have seemed impossible a decade ago: his country had arrived.
"Proof that the country can deliver world-class energy infrastructure," Marcos said at the inauguration of the first phase of MTerra Solar, a project spanning into Bulacan that is on track to become the world's largest integrated solar and battery storage facility. The milestone came as demand for electricity across the globe surges toward record levels—and solar and storage are rushing to fill the gap.
The numbers are staggering. In the first quarter of 2026, solar and storage made up 91% of all new grid capacity added in the United States alone, the highest quarterly share the duo has ever recorded. In May 2026, solar generated more electricity than coal in the US for the first time in history. And in June, the European Union hit a new milestone: 25% of its entire power grid ran on solar, the largest single source of electricity for only the third month ever recorded.
"Solar generated a record 52 TWh of EU electricity in June 2026," as Ember's analysis shows, topping nuclear (21%), gas (15%), and wind (14%).
The scale of what's being built is equally remarkable. Google and Cypress Creek broke ground on the Steel River Energy Center in Arkansas—America's largest solar project, with 2.5 GWdc of solar and 2.9 GWh of battery storage once fully complete by 2029. The project will support 700 construction jobs per phase and is built with Arkansas steel and American-made components. Meanwhile, Masdar announced financial close on what it calls the "world's first gigascale Round-the-Clock renewable energy project"—a $6.1 billion, 5.2 GW solar installation paired with 19 GWh of battery storage that will deliver 1 GW of continuous clean power around the clock. Thirteen international banks backed the deal.
China, meanwhile, is operating the world's largest battery energy storage fleet. By early 2026, the country had installed nearly 150 GW of lithium-ion battery storage. New analysis from Ember suggests China's utility-scale batteries could have shifted an additional 23 TWh of clean electricity in 2025—equivalent to powering Singapore's entire economy for five months—if deployed to their full potential. China recently raised its 2030 target for "new energy storage" to 300 GW.
Not everything is seamless. In the US, over 450 solar projects representing over 36% of planned new power capacity remain at risk due to permitting bottlenecks. The Solar Energy Industries Association estimates that new bureaucratic reviews imposed by the Department of the Interior are delaying projects ready to deliver affordable power. As electricity demand climbs—driven by data centers, AI, and electric vehicles—smart grid management is becoming critical. Research conducted by the National Laboratory of the Rockies for Xcel Energy is exploring how load flexibility algorithms can prevent costly infrastructure upgrades while managing the strain from millions of new EV chargers.
But the trajectory is clear. The question is no longer whether solar and storage can power the world. It's whether permitting, policy, and grid infrastructure can keep up with a boom moving faster than anyone predicted.
The world built more solar and battery storage in the first half of 2026 than most analysts expected in a full year. The momentum is no longer a trend—it is the grid.
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