Editor's note: Summer is sizzling in the energy transition sector, with a big investment for Base Power and the acquisition of Houston-based Zupt. Plus, an Alabama-based renewables company relocates to Houston. Below are the five most-read EnergyCapitalHTX stories published between July 30-August 13, 2026:

1. Texas battery startup Base Power hits $13B valuation with $1B raise

Base Power, an Austin-based residential power provider with a Houston office, has raised $1 billion in a Series D round, bringing the startup’s valuation to $13 billion. Ribbit, Addition, Valor Equity Partners, and JPMorganChase’s Strategic Investment Group led the round, with participation from Altimeter, D1 Capital Partners, Sands Capital, Coatue, Layer Global, and Energy Impact Partners. Existing investors also added to the round, including Thrive Capital, a16z, Lightspeed, Trust Ventures, and CapitalG. Base Power, which provides residential battery backup systems that automatically turn on during outages and sells electricity to homeowners, says the funding will go toward hiring more people and expanding nationally. Continue reading.

2. Houston subsea firm Zupt acquired in offshore tech deal

Houston-based Zupt LLC, a provider of advanced metrology, inspection, and engineering services for offshore energy and renewable projects, has been acquired by Columbus, Ohio-based Rosenxt Holding USA for an undisclosed amount. Rosenxt says the deal, which closed July 21, represents another step in its long-term strategy to build a portfolio of technology and engineering capabilities for the subsea market in the energy sector. Continue reading.

3. Alabama-based renewable fuels company to move HQ to Houston

An Alabama-based clean tech company is moving its headquarters to Houston. Alléo Energy announced that it will move its headquarters from Bay Minette, Alabama, to Houston's Ion District. The company develops carbon-negative fuels and renewable commodities through its conversion technology that turns wood waste and cellulosic feedstocks into high-energy, high-yield syngas. Continue reading.

4. Houston geothermal startup adds former BP, Calpine execs to C-suite

XGS Energy, a Houston-based developer of geothermal power systems, has added several energy industry veterans to its C-suite this summer. The company named Al Vickers as its new chief operating officer earlier this month. Vickers will replace Ghazal Izadi in the role, as she moves into the chief growth officer position. Vickers previously served as CEO of bp's U.S. Low Carbon Energy business and most recently was COO of Houston-based Grid United, which develops next-generation transmission infrastructure. Continue reading.

5. Woodlands-based Lancium teams up on West Texas data center campus

The Woodlands-based Lancium Technologies, which designs, develops, and manages gigawatt-scale data center campuses, has teamed up with Denver-based data center builder and operator Crusoe Energy Systems on a new grid-connected campus more than 100 miles east of Wichita Falls. Construction on the 1-gigawatt Childress County campus, being built for an unidentified tech company, is expected to start in Q3 of this year. Continue reading.