Texas Solar to Surpass Coal Generation by 2026, EIA Projects

TL;DR: Texas will generate more electricity from solar than coal in 2026, with 78 billion kilowatt‑hours projected versus 60 billion from coal.

Context The Electric Reliability Council of Texas (ERCOT) oversees the state’s power grid, which has long been dominated by fossil fuels. Recent policy shifts and falling solar costs have accelerated renewable adoption, positioning solar to become the leading source of new capacity.

Key Facts - The U.S. Energy Information Administration (EIA) projects utility‑scale solar will produce 78 billion kilowatt‑hours in 2026, exceeding the 60 billion kilowatt‑hours expected from coal plants. - Solar’s share of ERCOT’s electricity mix rose from 4 % in 2021 to 12 % in 2025, reflecting rapid deployment of new solar farms. - ERCOT CEO Pablo Vegas told a Texas Senate committee that more than 75 % of interest in new generation projects centers on solar and battery storage, with proposed solar projects accounting for over one‑third of the 450 gigawatts of capacity the grid seeks to add.

What It Means The shift signals a structural change in Texas’s energy landscape. Solar’s growth outpaces coal not only in annual output but also in investment appeal; developers and financiers are gravitating toward projects that pair solar panels with batteries, which can store excess daytime generation for use at night or during peak demand.

Higher solar penetration reduces reliance on coal, a fuel that contributes significant carbon emissions and faces tightening environmental regulations. As solar becomes cost‑competitive, coal plants may see reduced operating hours, potentially accelerating retirements.

ERCOT’s market design, which rewards low‑cost generation, further incentivizes solar and storage. The council’s recent reports show that the economics of these resources remain favorable, encouraging continued pipeline development.

The transition also raises grid‑management challenges. Solar output fluctuates with weather, requiring robust forecasting and flexible resources—roles that battery storage is poised to fill. ERCOT’s emphasis on storage suggests the grid will increasingly rely on rapid‑response assets to maintain reliability.

Looking Ahead Watch for the 2027 capacity auction results, which will reveal how much additional solar and storage capacity developers secure and whether coal’s decline accelerates further.