Solar power wasn't just part of America's energy story last year—it practically wrote the whole chapter. According to analysis from global energy think tank Ember, solar generation expanded by 83 terawatt-hours in 2025, a 27% jump from 2024. That single increase covered 61% of all new electricity demand in the country, leaving every other energy source eating its dust.
The context matters here: US electricity demand climbed by 135 terawatt-hours last year, a 3.1% increase that marked the fourth-largest annual growth in the past decade. Solar didn't just contribute to meeting that surge—it dominated the response.
"Solar growth was essential in helping to meet fast-rising U.S. electricity demand in 2025," said Dave Jones, Ember's chief analyst. "It generated where it was needed, and—with the surge in batteries—increasingly when it was needed."
The South's Solar Boom
Geography tells an interesting story. The US South, and Texas in particular, drove much of this expansion. Texas posted the largest absolute increase in solar output, reflecting both booming electricity demand and aggressive deployment of utility-scale projects. In both Texas and the Midwest, solar met 81% of electricity demand growth. Even the Mid-Atlantic region saw solar cover about one-third of its demand increase.
Major facilities came online throughout the year, including the 153-megawatt Felina Project in El Paso, the 150-MW Ratts 1 Solar Project in Indiana, and the 145-MW Axial Basin Solar Project in Colorado. These locations offered the perfect combination: abundant sunlight, streamlined permitting, and available land.
The timing component is equally compelling. Solar generation fully met the rise in US electricity demand during daytime hours between 10 a.m. and 6 p.m. Eastern. Meanwhile, rapid growth in battery storage allowed solar to punch above its weight class, shifting power generated during peak sunlight hours to cover portions of evening demand.
The US Energy Information Administration expects this trajectory to continue. Utility-scale solar generation could climb from roughly 290 billion kilowatt-hours in 2025 to 424 billion kilowatt-hours by 2027, powered by nearly 70 gigawatts of new capacity scheduled to come online. Texas is expected to lead again, with solar generation in the ERCOT market potentially doubling during that period.
The Silver Problem
Here's where things get complicated. Silver prices have surged in recent months, hitting a fresh all-time high of $99.36 today. That might sound like good news for precious metals investors, but it's creating serious headaches for solar manufacturers.
"Spiking commodity prices are creating irresistible cost pressures for solar manufacturers," said Yali Jiang, an analyst at BloombergNEF. He warned that higher silver costs are likely to push module prices up after years of losses across the sector.
The numbers are striking: silver now represents more than 29% of a solar panel's total cost, up sharply from just 3.4% in 2023 and about 14% in 2025. That's not a rounding error—it's a fundamental shift in the economics of solar manufacturing.
Manufacturers have been working hard to reduce silver content, cutting average usage from around 11 milligrams per watt in 2024 to about 9 milligrams per watt in 2025. But there are limits to how aggressively they can substitute away from silver without courting trouble.
"If a panel fails after ten years but has a twenty-year warranty, the manufacturer could face massive liabilities," explained Gregor Gregersen, founder of Silver Bullion Group. That's why progress in reducing silver use has been methodical rather than revolutionary.
Price Watch: Invesco Solar Energy (TAN) is up 9.98% year-to-date.
