Key Takeaways
- The Texas Electricity Grid has evolved since the first power plant in 1883, gradually expanding to serve major cities.
- The Federal Power Act of 1935 allowed Texas utilities to avoid federal regulation by not crossing state lines.
- ERCOT was formed in 1970 to ensure grid reliability after a national power outage prompted new regulations.
- The winter storm Uri in 2021 caused massive outages, prompting changes to improve power plant weather preparedness.
- New regulatory measures now require inspections and offer oversight to improve the reliability of the Texas Electricity Grid.
- Since Uri, the grid has weathered several winter storms (2022, 2024, 2025, and 2026) without systemwide blackouts, though none matched Uri’s severity.
- Battery storage and solar have grown dramatically since 2023, and Texas now leads the nation in adding both.
- Texas voters approved the Texas Energy Fund in 2023 to help finance new natural gas plants, while ERCOT projects peak demand could jump toward 145 gigawatts by 2031, driven largely by data centers.
The Texas Electricity Grid has gained much attention over the past few years, with Texas residents keeping an eye on grid conditions during extreme weather. The Texas electric grid has seen its struggles and successes since its creation. In the decades after Thomas Edison turned on the country’s first power plant in Manhattan in 1882, small electric plants began to pop up across the United States. Galveston became home to the first Texas power plant and was the first city in the state to install electric lights in 1883. Slowly, power plants were built near larger cities, including San Antonio, Houston, Dallas/Fort Worth, El Paso, and Austin. Early power plants ran on steam or the rushing water of dams.
The Federal Power Act of 1935
Congress passed the Federal Power Act in 1935. It gave the federal government the authority to regulate the transfer of electricity across state lines. Utility companies in Texas decided not to send power out of state. By not crossing state lines, Texas utilities avoided federal regulations.
Texas Interconnected System – 1941
During WWI, utility companies began to link themselves together. These ties continued to grow during WWII when several Texas utilities joined together in 1941 to form the Texas Interconnected System. The Texas Interconnected System allows excess electricity to transfer to the Gulf Coast region to support the ramped-up factories aiding the war effort.
Electric Reliability Council of Texas (ERCOT) – 1970
On November 9, 1965, the worst power outage in U.S. history occurred. Over 30 million people were affected and left without electricity for about 13 hours. While the power outage did not affect Texas’s electricity grid, it prompted a national policy change, leading to the introduction of new federal regulations. The introduction of new federal regulations ensured the reliability of the power grid. Those new regulations led the Texas Interconnected System to form the Electric Reliability Council of Texas (ERCOT) in 1970.
Public Utility Commission & the Development of ERCOT – 1975 & 1996
In 1975, the Texas legislature established the Public Utility Commission (PUCT), which oversees all electric utilities in the State. ERCOT’s role in Texas later grew under then-Governor George W. Bush. State lawmakers were considering moving electricity and telecommunications into a competitive market to lower prices for customers across the state. ERCOT was appointed to facilitate the power flows and exchanges between emerging utilities. In 1996, it became the country’s first independent system operator (ISO).
Texas Electricity Grid & ERCOT’s Failure – 2021
In mid-February 2021, a winter storm (Uri) devastated Texas. Over 4.5 million households and businesses lost electricity for several days. Before the blackout, ERCOT cut off power to more than 2 million homes. This was the most significant forced power outage in U.S. history, aimed at preventing a catastrophic failure of the Texas electricity grid. Damage estimates ranging from $80-$130 billion make the winter storms the second most costly disaster in Texas History. The most expensive disaster was in 2017, when Category 4 Hurricane Harvey made landfall in Rockport, Texas. Hurricane Harvey caused $125 billion in damage, underscoring the importance of staying vigilant and being prepared for weather events such as hurricanes and winter storms.
Changes to Avoid Future Failure of the Texas Electricity Grid
In 2021, the Texas Legislature ordered electricity regulators to require power plants to better prepare for extreme weather events. The Public Utility Commission has imposed some early requirements, including requiring plants to winterize in accordance with previous federal guidance. There are now inspections and fines for non-compliance by those who do not meet the new requirements. Further, ERCOT has adjusted its market pricing mechanisms to encourage power generation during peak demand. Natural gas, renewable energy, and battery storage resources now adds to the Texas electricity grid to improve flexibility and reliability, specifically during significant weather events. Equally important, ERCOT has made internal changes to become more proactive in maintaining the grid’s reliability. The new board structure has more oversight from state officials to improve governance. They now also require greater power reserves ahead of extreme weather.
The grid has held through every winter storm since Uri, which is genuine progress worth celebrating. Still, experts caution the toughest test may not have arrived yet, since none of those storms matched Uri for sheer severity or length. Pair that with demand growing faster than new around-the-clock power is coming online, and there’s plenty of reason to keep an eye on grid conditions. Even so, worry about a grid collapse hasn’t scared anyone off: Texas keeps leading the nation in net migration.
The Grid Since Uri: Storm-Tested, So Far (2022 to Today)
Here’s the good news Texans have been waiting for: since Uri, the grid has kept the lights on. Winter Storm Elliott in December 2022, Winter Storm Heather in January 2024, and hard freezes in January 2025 and January 2026 all leaned on the grid, and none of them triggered the systemwide blackouts that made Uri infamous. Regulators have run roughly 1,800 winterization inspections since 2021, with fines waiting for any plant that shows up to a cold snap unprepared. The honest asterisk: none of those storms hit as hard or lasted as long as Uri, so the real final exam may still be out there.
A Bigger, Battery-Powered Grid
The biggest change is what’s actually feeding the grid. Battery storage has gone from a rounding error to a heavy hitter, climbing from around 3,200 megawatts in late 2023 to roughly 14,000 megawatts heading into 2026. During the January 2026 freeze, batteries pushed out more than 7,000 megawatts at points, close to 10% of the grid’s power and enough to cover well over a million homes. Solar has more than doubled since 2023; Texas now installs more new solar and storage than any other state, and in 2025 solar leapfrogged coal to become the state’s third-largest power source. The catch worth remembering: batteries are built to deliver for a few hours, not the multi-day siege of an Uri-style event, so they’re a serious tool but not a magic wand.
More Power, and a Whole Lot More Demand
To add firm, on-demand power, Texas voters approved the Texas Energy Fund in November 2023 (that was Proposition 7), a multibillion-dollar pool of low-interest loans to build new natural gas plants. Progress has been slower than hoped, with only a couple of projects approved as of 2025 and more still working through review. Meanwhile, demand is sprinting. ERCOT keeps shattering its own peak-demand records, and now projects peak demand could jump from about 87 gigawatts in 2025 to as much as 145 gigawatts by 2031, driven mostly by data centers and AI, plus crypto mining, new factories, and all the people still moving here. In 2025, lawmakers passed Senate Bill 6 to give ERCOT more say over how those giant new users plug in. The short version: the grid is bigger and more flexible than it was in 2021, but demand is doing its best to outrun it.
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