Houston cleantech startup secures $134M to develop ‘superhot’ geothermal plant

deep round

A rendering of a Quaise Energy geothermal plant. Rendering via quaise.com

Houston-based Quaise Energy, a producer of utility-scale geothermal power, raised $134 million in a Series B round to advance its “superhot” geothermal power plant.

Climate-focused San Francisco-based investment firm Prelude Ventures led the round, with participation from JERA Co., Japan’s largest power generation company, and Idemitsu Kosan, one of Japan’s largest energy companies. Nearly all existing investors, including cleantech-focused investment firm Safar Partners, participated in the round.

“We have backed Quaise since the beginning because we believed accessing superhot rock would unlock geothermal energy at a scale the world has never seen,” Mark Cupta, managing director at Prelude Ventures, said in a press release.

The startup expects more equity and debt deals to close “imminently.” Quaise has raised $230 million since its founding in 2018.

Quaise says some of the fresh funding will go toward building the world’s first commercial-scale “superhot” geothermal power plant —Project Obsidian in central Oregon. In addition, Quaise is earmarking money for continued development and commercialization of its millimeter-wave drilling system toward depths exceeding 5 kilometers (about 16,400 feet).

Quaise uses a millimeter-wave drilling system developed at the Massachusetts Institute of Technology to remove rock at depths and temperatures that aren’t economically feasible with conventional drilling. With this technology, Quaise can reach rock at temperatures of around 570 degrees to 930 degrees in most places worldwide, enabling construction of geothermal systems that rival fossil fuels and nuclear energy in power density and that rival renewables in cost.

“Our ambition is to power civilization with Earth's most compelling energy source. This round takes us from field-proven technology to first commercial revenues,” Carlos Araque, co-founder, president and CEO of Quaise, added in the release.

Quaise has demonstrated the capability of its millimeter-wave drilling system at its Central Texas test site, drilling more than about 330 feet through granite in 2025—the first time the technology penetrated basement rock at full scale in the field. The company is approaching a depth of about 3,300 feet at the same site.

Construction of Project Obsidian is underway at Oregon’s Deschutes National Forest. The project, which has the potential to generate gigawatt-scale power, is slated to deliver electricity to the Pacific Northwest grid by 2030.

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What is it going to take to make Houston a leader in the energy transition? Access to capital, according to a panel from Venture Houston. Photo by Natalie Harms/EnergyCapital

Experts: Houston needs to unlock early-stage capital to lead the energy transition

show me the money

Last week, Tim Latimer sat on a panel that consisted mostly of his company's investors and discussed what he felt the missing piece still was for Houston's energy transition and innovation community.

“There’s no better place in the world than Houston to build and scale a climate tech startup," he says on a Venture Houston panel titled Seeding Sustainability: Unlocking the Power of Early Stage Investments.

“But I don’t know if I’m ready to make the claim that we’re the best place to start a business,” he adds.

Latimer, who co-founded Fervo Energy in the Bay Area in 2017 before relocating the company to Houston, explains that his company raised capital on the West Coast ahead of moving to Texas to grow and scale. This allowed the company, which recently announced the success of a major pilot, to tap into early stage funding and then make the most of every dollar raised by moving to a region where the money would last longer — and where there's talent, customers, and more.

“The dream for us to have a truly unlocked ecosystem is that the whole pattern can happen here in Houston, and the gap I see is that capital formation side,” he says.

Latimer was joined on the panel by some of Fervo's investors: Mark Cupta, managing partner of Prelude Ventures; Andrea Course, venture principal of Shell Ventures; and Joshua Posamentier, co-founder and managing partner of Congruent Ventures.

Each of the panelists weighed in on what it would take for Houston to emerge as a leader within the global energy transition. Cupta says that it's going to take the city time to build out activity, successful outcomes, talent, money, and more.

“The venture capital community is an ecosystem, and that ecosystem consists of multiple stakeholders that all have to work in concert with each other," he says. "It has to be a flywheel that spins up over time.”

Course, the only Houston-based investor on the panel, says that Houston has potential because it's got talent, industry, and money, or TIM, as she describes.

“I think Houston is actually the perfect place for becoming the energy transition capital. If you ask me, I think we already are.” Course explains. “It really just takes people doing what we’re doing now to make it even greater."

Posamentier, who previously shared his outlook on Houston in a Q&A with EnergyCapital, explains that access to funding isn't the only issue. “There’s a lot more money than there are investable opportunities at the moment,” he says.

The panel also weighed in on the difference between venture capital and funding coming out of corporations.

“VCs and CVCs have different timelines,” Course explains, saying VC firms have 5- to 7-year life cycles. After that, they need to see an exit to be able to provide that return. “With a CVC, we don’t really have that. Of course we want to show financial returns, but we are long-duration capital.

CVC is patient capital with value-add investors, but Course admits there's a longer due diligence because she wants to find a strategic stakeholder before an investment is made.

“The worst thing that could happen is that Shell gives you money, but they don’t give you business. We don’t want that,” she says.

Waiting for that right investor can be extremely important to company success, Latimer says from the founder perspective.

“It’s hard to put a hard dollar value on help, but our ability to have advisers and introductions from different types of investors … makes all the difference in the world,” he says on the panel. “A lot of startup founders think about their org design very critically and who they want to bring onto the team, and you should be deliberate on your cap table.”

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Telsa eyes Houston area for $10 billion solar manufacturing plant

under review

Electric vehicle and clean energy company Tesla is considering building a new $10.1 billion solar cell manufacturing facility in Fort Bend County, according to documents filed with the Texas Comptroller’s Office.

If approved, the plant, called Project Sun City, would be located on a 3,050-acre site off FM 762 and FM 1994 in Richmond, Texas. Tesla aims to finish construction in 2028, with the plant being operational by early 2029.

The plant will manufacture photovoltaic (PV) solar cells and modules that can convert sunlight into electricity. PV Magazine reports that the facility is "the largest single manufacturing investment Tesla has proposed on paper."

Advisory and consulting firm Kroll submitted the documents to the Texas Comptroller of Public Accounts and noted if an agreement regarding tax incentives isn't reached, the project will exit Texas.

Tesla has requested credits under the Jobs, Energy, Technology, and Innovation (JETI) Act. The incentive program aims to attract large, capital-intensive economic development projects by lowering the property taxes an entity must pay over 10 years if it meets requirements related to job creation and investment. For example, pharmaceutical giant Bristol Myers Squibb Co. recently announced that its forthcoming $2.3 billion Houston-area manufacturing site is a qualified project under the JETI program.

Kroll predicts that the facility would create 9,712 new full-time jobs, over 1,100 construction jobs and billions of dollars in future property tax revenue, the documents show. Additionally, it says the project will spur $1.1 billion in local business expenditures and that Texas would increase its GDP by approximately $107 billion as a result of the project activities.

Tesla opened its $200 million Megafactory in Brookshire, Texas, last year. The company is continuing its goal to deploy 100 gigawatts of solar manufacturing in the U.S before the end of 2028. According to the U.S. Energy Information Administration, 100 gigawatts is equal to about 8 percent of the country's power grid capacity.

Houston researchers land $10M grant to study how climate change drives disease threats

climate health research

Researchers from Rice University, Baylor College of Medicine and the University of Texas School of Public Health have received a $10 million grant to support research and public education on how climate change is linked to public health.

The funding comes from North Carolina-based Burroughs Wellcome Fund and is known as the organization’s Climate + Health Excellence (CHEX) award. It will be used over the next five years to launch the new FORECAST initiative, led by Rice professors and co-investigators Sylvia Dee and Joseph Campan.

FORECAST will “study how a rapidly changing environment and weather drive the emergence and expansion of deadly pathogens in human populations,” according to a release from Rice.

“This grant supports novel research linking climate change projections to health care solutions while simultaneously ensuring the next generation of scientists, leaders and policymakers have the training to assess and respond to the climate change risks that we already know are increasing every year,” Dee said in the release.

The funding will go toward a variety of new initiatives and centers.

At Rice, the funding will help launch the new Center for Climate and Environmental Health, as well as cross-campus multidisciplinary collaborations, seed grants, postdoctoral and graduate positions, and more, according to the university.

The grant will also support the statewide “Middle to Medical” climate-health educational program for youth. The program will focus on teaching how pathogens spread and how climate change plays a role in the process.

“FORECAST will prepare youth across Texas to make informed health decisions that protect themselves and their families and communities from extreme weather and disease-related risks,” Nancy Moreno, a professor of education, innovation and technology at Baylor College of Medicine and co-investigator on this grant, added in the release.

Anthony Maresso, professor of molecular virology and microbiology at Baylor College of Medicine, will share expertise in viral pathogen sewage detection that was developed during the COVID-19 pandemic; while Eric Boerwinkle, dean of the UT School of Public Health, will share insights from the Texas Wastewater Environmental Biomonitoring Network, which tracks disease-causing viruses and bacteria by testing wastewater weekly at Texas sites.

“Hotter days, bigger storms, new disease threats — Texas’s future demands preparation,” Boerwinkle added in the release. “With support from the Burroughs Wellcome Fund, the FORECAST team is helping Texas detect threats earlier and respond faster, saving lives and strengthening our economy.”

EV surge could shutter 40 refineries by 2040, Wood Mackenzie report warns

ev outlook

The rise of electric vehicles could spell trouble for Houston’s oil and gas sector, a new report suggests. But the oil and gas industry stands to benefit from potential sluggishness in U.S. adoption of EVs.

If worldwide EV adoption rises as expected, global oil demand could fall by five million barrels per day by 2040, accelerating the closure of about 40 oil refineries, says the report, published by energy research and consulting firm Wood Mackenzie. The firm’s North American hub is in Houston.

Those closures might spell trouble for refinery operators with a sizable Houston-area presence, including BP, ExxonMobil, Marathon, Saudi Aramco, and Valero. In 2025, the five companies collectively earned roughly $33 billion from downstream operations, including refineries. One caveat: Each company assigns a different definition to “downstream.”

Refineries in Organization for Economic Co-operation and Development (OECD) countries, including the U.S. but excluding Middle Eastern heavyweights, “are most at risk due to their high energy costs and carbon prices,” the Wood Mackenzie report says.

On the flip side, an abundant U.S. oil supply means American drivers have less of an incentive to switch from traditional cars to electric vehicles, despite stubbornly high fuel prices, according to the report.

Wood Mackenzie predicts EVs will account for 20 percent of the U.S. personal and commercial vehicle fleet in 2040, up from three percent in 2025. That compares with a global forecast of 25 percent in 2040, up from 4 percent last year.

Another U.S. roadblock to EV adoption cited in the report: the country’s relative lack of advanced battery manufacturing.

“Without advanced battery technologies, the U.S. auto sector is at risk of ceding its home market to non-Chinese EVs and falling behind competitors internationally,” the report says.

Furthermore, according to the report, Chinese investment in EV manufacturing in the U.S. probably will remain a no-go and tariffs on Chinese EV imports likely won’t be lifted, even if Democrats resurrected EV incentives following a White House win in 2028.

“Competition among EV manufacturers in international markets will only intensify,” the report notes. “Companies that can offer competitive products in high-growth markets will be best positioned for long-term success.”

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