As triple-digit temperatures gripped Texas in late July, Houston and surrounding regions leaned heavily on solar power and new battery storage systems to keep the lights on—offering a glimpse into the state’s evolving energy future.

On July 24, the Electric Reliability Council of Texas (ERCOT) reported statewide electricity demand nearing 82,000 megawatts, one of the highest peaks of the year. The next day, the state’s solar fleet delivered a record 28,451 megawatts, helping offset the strain and stave off rolling blackouts.

“Solar came through when we needed it most,” said Pablo Vegas, ERCOT’s CEO. “But it’s clear we need more investment in flexibility and transmission to keep up with growth.”

That flexibility is already arriving in Houston. In Alvin, just southwest of the city, Prologis Energy has broken ground on a 400-megawatt utility-scale battery storage facility, one of the largest in Texas. The first 200 megawatts are expected online by the end of 2025.

Two additional 10-megawatt battery projects by GoodPeak Energy are also set to go live by late 2025, targeting congestion points within ERCOT’s service zones. These systems store excess solar power and discharge it during the high-demand evening hours.

Meanwhile, Houston-based CenterPoint Energy recently finalized a $3.2 billion settlement with local governments to implement widespread grid resiliency upgrades. The improvements aim to harden infrastructure against hurricanes, ice storms and extreme heat—climate stressors that have intensified in recent years.

“This isn’t just about adding power,” said Mayor John Whitmire. “It’s about protecting Houston families and businesses from the kind of prolonged outages we saw during Winter Storm Uri.”

Still, experts warn that infrastructure gaps persist, particularly in transmission. According to the Houston Chronicle, Texas needs up to $33 billion in new or improved transmission lines to ensure that renewable energy generated in West Texas can reach cities like Houston without delays or curtailment.

Energy analysts also point to rising electricity demand driven by data centers, AI computing, crypto mining and the electrification of oilfield operations. ERCOT estimates peak demand could reach 87,500 megawatts by summer’s end, a new record.

In the face of surging growth and intensifying weather, Houston’s energy leaders say a diversified strategy—solar, storage, upgraded transmission and improved reliability—will be key to powering the future.

“This is a defining moment for Texas,” said Texas Public Utility Commissioner Lori Cobos. “We can lead, or we can lag. But we can’t stand still.”