Fervo Energy claimed a top 10 spot on Time magazine and Statista’s new list of America’s Top GreenTech Companies of 2025. Photo via Getty Images.

The accolades keep rolling in for Houston-based Fervo Energy, a producer of geothermal power.

Fervo lands at No. 6 on Time magazine and Statista’s new list of America’s Top GreenTech Companies of 2025. The ranking recognizes sustainability-focused companies based on factors such as impact, financial strength, and innovation.

Time notes that Fervo broke ground in 2023 in Utah on what the company claims will be the world’s largest geothermal plant. The plant is scheduled to start supplying carbon-free electricity to the grid next year and to reach its 400-megawatt capacity in three years.

“Technologies like this only make a difference if we deploy them at large-scale in a way that can reduce carbon emissions and increase the reliability of the grid,” Fervo CEO Tim Latimer told Time in 2023.

The startup was named North American Company of the Year by research and consulting firm Cleantech Group for 2025. Fervo topped the Global Cleantech 100, Cleantech Group’s annual list of the world’s most innovative and promising cleantech companies.

Last year, Fervo also made Time’s list of the 200 Best Inventions of 2024. Fervo was recognized in the green energy category for its FervoFlex geothermal power system.

Founded in 2017, Fervo is now a unicorn, meaning its valuation as a private company exceeds $1 billion. The startup’s valuation is estimated at $1.4 billion. According to PitchBook data, the company raised $634 million in the fourth quarter of 2024.

In all, eight Houston-area companies appear among the top 250 greentech companies ranked by Time and Statista. Other than Fervo, they are:

  • No. 43 Lancium Technologies, an energy storage and distribution company
  • No. 50 Solugen, a producer of sustainable chemicals.
  • No. 56 Quaise Energy, which specializes in terawatt-scale geothermal power.
  • No. 129 Plus Power, a developer, owner and operator of battery storage projects.
  • No. 218 Dream Harvest, which promotes sustainable vertical farming.
  • No. 225 Cemvita, which uses synthetic biology to convert carbon emissions into bio-based chemicals.
  • No. 226 Syzygy Plasmonics, which decarbonizes chemical production.
Vermont-based BETA Technologies claimed the No. 1 spot. The company manufactures electric aircraft.
Fervo Energy has been named North American Company of the Year, and two other Houston companies made the Global Cleantech 100 list. Photo via fervoenergy.com

Houston unicorn startup named North American Company of the Year by cleantech firm

top honor

Houston-based geothermal energy startup Fervo Energy has been named North American Company of the Year by research and consulting firm Cleantech Group.

Fervo appears on this year’s Global Cleantech 100, Cleantech Group’s annual list of the world’s most innovative and promising cleantech companies

Houston companies Syzygy Plasmonics and Vaulted Deep also made the Global Cleantech 100 list this year.

“These innovators give us reasons to be optimistic about the future. Their groundbreaking work demonstrates that progress toward net zero remains possible and inspires us to double down on the challenge of addressing climate change,” says Richard Youngman, CEO of Cleantech Group.

Fervo was honored during a Jan. 27 awards dinner at Cleantech Forum North America, an event hosted by Cleantech Group. Co-founder and CEO Tim Latimer accepted the North American Company of the Year award on behalf of Fervo.

“We have always been honored to be part of the Global Cleantech 100,” Latimer says in a LinkedIn post. “Being recognized for the fourth consecutive year and named the ‘North American Company of the Year’ is a testament to our relentless pursuit of innovation in the energy sector. The demand for clean, firm power has never been more urgent, and we are proud to lead the way.”

Founded in 2017, Fervo is now a unicorn, meaning its valuation as a private company has surpassed $1 billion. The startup’s valuation is estimated at $1.4 billion. According to PitchBook data, the company raised $634 million in VC funding in Q4. Read more here.

The deal brings Fervo's total funding secured this year to around $600 million. Photo courtesy of Fervo

Houston-based Fervo Energy collects $255M in additional funding

cha-ching

A Houston company that's responding to rising energy demand by harnessing geothermal energy through its technology has again secured millions in funding. The deal brings Fervo's total funding secured this year to around $600 million.

Fervo Energy announced that it has raised $255 million in new funding and capital availability. The $135 million corporate equity round was led by Capricorn’s Technology Impact Fund II with participating investors including Breakthrough Energy Ventures, CalSTRS, Congruent Ventures, CPP Investments, DCVC, Devon Energy, Galvanize Climate Solutions, Liberty Mutual Investments, Mercuria, and Sabanci Climate Ventures.

The funding will go toward supporting Fervo's ongoing and future geothermal projects.

“The demand for 24/7 carbon-free energy is at an all-time high, and Fervo is one of the only companies building large projects that will come online before the end of the decade,” Fervo CEO and Co-Founder Tim Latimer says in a news release. “Investors recognize that Fervo’s ability to get to scale quickly is vital in an evolving market that is seeing unprecedented energy demand from AI and other sources.”

Additionally, Fervo secured a $120 million letter of credit and term loan facility from Mercuria, an independent energy and commodity group that previously invested in the company.

“In surveying power markets across the U.S. today, the need for next-generation geothermal is undeniable,” Brian Falik, group chief investment officer of Mercuria, adds. “We believe in Fervo not just because their EGS approach is cost-effective, commercially viable, and already being deployed at scale, but because they set ambitious targets and consistently deliver.”

In February, Fervo secured $244 million in a financing round led by Devon Energy, and in September, the company received a $100 million bridge loan for the first phase of its ongoing project in Utah. This project, known as Project Cape, represents a 100x growth opportunity for Fervo, as Latimer explained to InnovationMap earlier this year. As of now, Project Cape is fully permitted up to 2 GW and will begin generating electricity in 2026, per the company.

Other wins for Fervo this year include moving into its new headquarters in downtown Houston, securing a power purchase agreement with California, growing its partnership with Google, and being named amongst the year's top inventions by Time magazine.


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This article originally ran on InnovationMap.

These three Houston innovators have been recognized by Time Magazine. Photos courtesy

3 Houstonians named to prestigious list of climate leaders

who's who

Three Houston executives — Andrew Chang, Tim Latimer, and Cindy Taff — have been named to Time magazine’s prestigious list of the 100 Most Influential Climate Leaders in Business for 2024.

As managing director of United Airlines Ventures, Chang is striving to reduce the airline’s emissions by promoting the use of sustainable aviation fuel (SAF). Jets contribute to about two percent of global emissions, according to the International Energy Agency.

In 2023, Chang guided the launch of the Sustainable Flight Fund, which invests in climate-enhancing innovations for the airline sector. The fund aims to boost production of SAF and make it an affordable alternative fuel, Time says.

Chang tells Time that he’d like to see passage of climate legislation that would elevate the renewable energy sector.

“One of the most crucial legislative actions we could see in the next year is a focus on faster permitting processes for renewable energy projects,” Chang says. “This, coupled with speeding up the interconnection queue for renewable assets, would significantly reduce the time it takes for clean energy to come online.”

At Fervo Energy, Latimer, who’s co-founder and CEO, is leading efforts to make geothermal power “a viable alternative to fossil fuels,” says Time.

Fervo recently received government approval for a geothermal power project in Utah that the company indicates could power two million homes. In addition, Fervo has teamed up with Google to power the tech giant’s energy-gobbling data centers.

In an interview with Time, Latimer echoes Chang in expressing a need for reforms in the clean energy industry.

“Addressing climate change is going to require us to build an unprecedented amount of infrastructure so we can replace the current fossil fuel-dominated systems with cleaner solutions,” says Latimer. “Right now, many of the solutions we need are stalled out by a convoluted permitting and regulatory system that doesn’t prioritize clean infrastructure.”

Taff, CEO of geothermal energy provider Sage Geosystems, oversees her company’s work to connect what could be the world’s first geopressured geothermal storage to the electric grid, according to Time. In August, Sage announced a deal with Facebook owner Meta to produce 150 megawatts of geothermal energy for the tech company’s data centers.

Asked which climate solution, other than geothermal, deserves more attention or funding, Taff cites pumped storage hydropower.

“While lithium-ion batteries get a lot of the spotlight, pumped storage hydropower offers long-duration energy storage that can provide stability to the grid for days, not just hours,” Taff tells Time. “By storing excess energy during times of low demand and releasing it when renewables like solar and wind are not producing, it can play a critical role in balancing the intermittent nature of renewables. Investing in pumped storage hydropower infrastructure could be a game-changer in achieving a reliable, clean energy future.”

Tim Latimer, CEO and co-founder of Fervo Energy, has been named to the TIME100 Next. Photo courtesy of Fervo Energy

Houston clean energy founder scores spot on Time's list of most influential leaders

what a coincidence

What do pop star Sabrina Carpenter and Houston geothermal energy founder Tim Latimer have in common? In addition to their successful summers in their respective industries, they both also were named influential leaders on the TIME100 Next list for 2024.

For the fifth year, Time magazine released the annual list that was established to honor influential leaders "who are not waiting long in life to make an impact," reads the announcement article, continuing, "TIME100 Next has no age requirements; its aim is to recognize that influence does not have them either, nor does leadership look like it once did."

Representing Houston, Latimer was selected for his work in geothermal energy innovation. His company, Fervo Energy, has reached numerous milestones over its seven years of existence, garnering partnerships with the likes of Google and Devon Energy and raising an estimated $531 million in venture capital investment. Last month, the company announced it received a $100 million bridge loan from an affiliate of Irvington, New York-based X-Caliber Rural Capital for the first phase of its ongoing Cape Station project, which is being touted as the world’s largest geothermal energy plant.

"At a time when emission reductions are vital, energy demand has surged to a record high as a boom in AI and data centers pushes our nation’s grid to the brink," writes Tom Steyer, co–­executive chair of Galvanize Climate Solutions, which invests in Fervo Energy, in a Time article. "Leveraging multiple forms of renewable energy will be critical to meeting this demand and advancing the climate transition.

"One such solution is geothermal, which could eliminate close to 800 megatonnes of emissions annually by 2050," he continues. "Latimer uses fracking technology to supercharge the output of geothermal wells. Last year, in collaboration with Google, his startup piloted a first-of-its-kind commercial-­scale power plant, and in November, the Nevada plant (Project Red) began pumping electricity into Google data centers. Getting juice to the grid is a key milestone for energy startups—and one many never reach."

In an interview with InnovationMap for the Houston Innovators Podcast, Latimer reported that Fervo is growing and scaling at around a 100x pace. While Fervo's first project, Project Red, included three wells, Project Cape, a Southwest Utah site, will include around 100 wells with significantly reduced drilling cost and an estimated 2026 delivery. Latimer says there are a dozen other projects like Project Cape that are in the works.

"It's a huge ramp up in our drilling, construction, and powerplant programs from our pilot project, but we've already had tremendous success there," Latimer says of Project Cape. "We think our technology has a really bright future."

While Latimer looks ahead to the rapid growth of Fervo Energy, he says it's all due to the foundation he put in place for the company, which has a culture built on the motto, "Build things that last."

“You’re not going to get somewhere that really changes the world by cutting corners and taking short steps. And, if you want to move the needle on something as complicated as the global energy system that has been built up over hundreds of years with trillions of dollars of capital invested in it – you’re not going to do it overnight," he says on the show. "We’re all in this for the long haul together."


Fervo Energy received $100 million loan for its Utah Cape Station project. Photo via fervoenergy.com

Houston company secures $100M for 'world’s largest geothermal energy plant'

loan guarenteed

Houston-based geothermal energy company Fervo Energy has secured a $100 million bridge loan for the first phase of its ongoing project in Utah.

The loan came from an affiliate of Irvington, New York-based X-Caliber Rural Capital. Proceeds will support construction of Fervo’s Cape Station project, which is being touted as the world’s largest geothermal energy plant.

The first phase of Cape Station, which is on track to generate 90 megawatts of renewable energy, is expected to be completed in June 2026. Ultimately, the plant is supposed to supply 400 megawatts of clean energy by 2028 for customers in California.

“Helping this significant project advance and grow in rural America is a true testament to how investing in communities and businesses not only has local influence, but can have a global, long-lasting impact by promoting sustainability and stimulating rural economies,” Jordan Blanchard, co-founder of X-Caliber Rural Capital, says in a news release.

X-Caliber Rural Capital is an affiliate of commercial real estate financing company X-Caliber Capital Holdings.

Fervo says its drilling operations Utah’s Cape Station show a 70 percent reduction in drilling times, paving the way for advancement of its geothermal energy system.

Tim Latimer, co-founder and CEO of Fervo, says his company’s drilling advancements, purchase deals, transmission rights, permit approvals, and equipment acquisitions make Fervo “an ideal candidate” for debt financing. In May, Latimer joined the Houston Innovators Podcast to discuss the company's growth and latest project.

With a new office in downtown Houston, Fervo recently signed up one of the country’s largest utilities as a new customer and expanded its collaboration with Google.

To date, Fervo has raised $531 million in venture capital funding, per Crunchbase data.

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Syzygy partners with fellow Houston co. on sustainable aviation fuel facility

SAF production

Houston-based Syzygy Plasmonics has announced a partnership with Velocys, another Houston company, on its first-of-its-kind sustainable aviation fuel (SAF) production project in Uruguay.

Velocys was selected to provide Fischer-Tropsch technology for the project. Fischer-Tropsch technology converts synthesis gas into liquid hydrocarbons, which is key for producing synthetic fuels like SAF.

Syzygy estimates that the project, known as NovaSAF 1, will produce over 350,000 gallons of SAF annually. It is backed by Uruguay’s largest dairy and agri-energy operations, Estancias del Lago, with permitting and equipment sourcing ongoing. Syzygy hopes to start operations by 2027.

"This project proves that profitable SAF production doesn't have to wait on future infrastructure," Trevor Best, CEO of Syzygy Plasmonics, said in a news release. "With Velocys, we're bringing in a complete, modular solution that drives down overall production costs and is ready to scale. Uruguay is only the start."

The NovaSAF 1 facility will convert dairy waste and biogas into drop-in jet fuel using renewable electricity and waste gas via its light-driven GHG e-Reforming technology. The facility is expected to produce SAF with at least an 80 percent reduction in carbon intensity compared to Jet A fuel.

Syzygy will use Velocys’ microFTL technology to convert syngas into high-yield jet fuel. Velocys’ microFTL will help maximize fuel output, which will assist in driving down the cost required to produce synthetic fuel.

"We're proud to bring our FT technology into a project that's changing the game," Matthew Viergutz, CEO of Velocys, added in the release. "This is what innovation looks like—fast, flexible, and focused on making SAF production affordable."

How carbon capture works and the debate about whether it's a future climate solution

Energy Transition

Power plants and industrial facilities that emit carbon dioxide, the primary driver of global warming, are hopeful that Congress will keep tax credits for capturing the gas and storing it deep underground.

The process, called carbon capture and sequestration, is seen by many as an important way to reduce pollution during a transition to renewable energy.

But it faces criticism from some conservatives, who say it is expensive and unnecessary, and from environmentalists, who say it has consistently failed to capture as much pollution as promised and is simply a way for producers of fossil fuels like oil, gas and coal to continue their use.

Here's a closer look.

How does the process work?

Carbon dioxide is a gas produced by burning of fossil fuels. It traps heat close to the ground when released to the atmosphere, where it persists for hundreds of years and raises global temperatures.

Industries and power plants can install equipment to separate carbon dioxide from other gases before it leaves the smokestack. The carbon then is compressed and shipped — usually through a pipeline — to a location where it’s injected deep underground for long-term storage.

Carbon also can be captured directly from the atmosphere using giant vacuums. Once captured, it is dissolved by chemicals or trapped by solid material.

Lauren Read, a senior vice president at BKV Corp., which built a carbon capture facility in Texas, said the company injects carbon at high pressure, forcing it almost two miles below the surface and into geological formations that can hold it for thousands of years.

The carbon can be stored in deep saline or basalt formations and unmineable coal seams. But about three-fourths of captured carbon dioxide is pumped back into oil fields to build up pressure that helps extract harder-to-reach reserves — meaning it's not stored permanently, according to the International Energy Agency and the U.S. Environmental Protection Agency.

How much carbon dioxide is captured?

The most commonly used technology allows facilities to capture and store around 60% of their carbon dioxide emissions during the production process. Anything above that rate is much more difficult and expensive, according to the IEA.

Some companies have forecast carbon capture rates of 90% or more, “in practice, that has never happened,” said Alexandra Shaykevich, research manager at the Environmental Integrity Project’s Oil & Gas Watch.

That's because it's difficult to capture carbon dioxide from every point where it's emitted, said Grant Hauber, a strategic adviser on energy and financial markets at the Institute for Energy Economics and Financial Analysis.

Environmentalists also cite potential problems keeping it in the ground. For example, last year, agribusiness company Archer-Daniels-Midland discovered a leak about a mile underground at its Illinois carbon capture and storage site, prompting the state legislature this year to ban carbon sequestration above or below the Mahomet Aquifer, an important source of drinking water for about a million people.

Carbon capture can be used to help reduce emissions from hard-to-abate industries like cement and steel, but many environmentalists contend it's less helpful when it extends the use of coal, oil and gas.

A 2021 study also found the carbon capture process emits significant amounts of methane, a potent greenhouse gas that’s shorter-lived than carbon dioxide but traps over 80 times more heat. That happens through leaks when the gas is brought to the surface and transported to plants.

About 45 carbon-capture facilities operated on a commercial scale last year, capturing a combined 50 million metric tons of carbon dioxide — a tiny fraction of the 37.8 gigatonnes of carbon dioxide emissions from the energy sector alone, according to the IEA.

It's an even smaller share of all greenhouse gas emissions, which amounted to 53 gigatonnes for 2023, according to the latest report from the European Commission’s Emissions Database for Global Atmospheric Research.

The Institute for Energy Economics and Financial Analysis says one of the world's largest carbon capture utilization and storage projects, ExxonMobil’s Shute Creek facility in Wyoming, captures only about half its carbon dioxide, and most of that is sold to oil and gas companies to pump back into oil fields.

Future of US tax credits is unclear

Even so, carbon capture is an important tool to reduce carbon dioxide emissions, particularly in heavy industries, said Sangeet Nepal, a technology specialist at the Carbon Capture Coalition.

“It’s not a substitution for renewables ... it’s just a complementary technology,” Nepal said. “It’s one piece of a puzzle in this broad fight against the climate change.”

Experts say many projects, including proposed ammonia and hydrogen plants on the U.S. Gulf Coast, likely won't be built without the tax credits, which Carbon Capture Coalition Executive Director Jessie Stolark says already have driven significant investment and are crucial U.S. global competitiveness.

Houston renewable fuel company expands reach with latest acquisition

fueling up

Houston-based Freedom CNG, a provider and distributor of compressed renewable natural gas, has acquired ComTech Energy, a Canada-based provider of on-site mobile refueling for compressed renewable natural gas. The purchase price wasn’t disclosed.

The acquisition allows Freedom CNG to adopt a hub-and-spoke operational model, allowing customers to move away from fixed fueling infrastructure with low-carbon energy solutions across North America, according to a news release.

In conjunction with the deal, ComTech President James Ro has joined Freedom CNG as chief commercial and strategy officer.

“As we expand our footprint in low‑carbon fuel solutions, acquiring ComTech Energy marks an important step in enhancing our ability to deliver efficient, innovative fueling infrastructure,” Nick Kurtenbach, president and chief financial officer of Freedom CNG, said in the release. The acquisition, he added, “allows us to offer a more comprehensive suite of solutions that support the transition to cleaner energy and meet the evolving needs of our customers.”

Freedom CNG’s North American footprint now spans more than 25 fueling stations for compressed renewable natural gas and over 60 operations and maintenance sites across the U.S. and Canada.

This is the third acquisition for Freedom CNG in the last two months. It also recently acquired Colorado-based X3 CNG and Utah-based Lancer Energy, according to a representative from Freedom CNG, this summer. The company services regional trucks, buses and service vehicles, as well as heavy construction, agriculture, data centers and other sectors.

Last year, funds affiliated with alternative asset manager Apollo bought a majority stake in Freedom CNG, which was founded in 2012. The value of the deal wasn’t disclosed.

“Freedom has developed a strong portfolio of [renewable natural gas] fueling stations with meaningful growth potential driven by established relationships with blue-chip customers and attractive new development opportunities,” Apollo partner Scott Browning said in 2024.