Here's the latest global energy company to sign onto Greentown Labs. Photo via GreentownLabs.com

Greentown Labs has named its latest partner, opening a door to Colombia and South America.

Ecopetrol has joined Greentown as its newest Terawatt Partner, the highest level partner for the incubator. The company, which the Colombian government holds a majority ownership stake in, has integrated business across the hydrocarbon value chain, as well as low emission solutions and energy transmission.

"Accelerating the energy transition and fostering climate action is only possible through innovation, entrepreneurship, and meaningful partnerships," Ecopetrol's Chief Innovation Officer Agostinho João Ramalho Almeida says in a news release. "At Grupo Ecopetrol, we believe in joint efforts, orchestration, and access to technology to push barriers and increase value for our business and sustainability agenda. Partnering with Greentown Labs and working alongside industry leaders is an amazing opportunity to tackle common goals and challenges."

The company has a presence in several other locales throughout South and North America, per the release.

With the new partnership, Ecopetrol will have access to the Greentown community and events. Laura Tobón Díaz, head of innovation ecosystems and strategic partnerships for Ecopetrol, will serve on Greentown's Industry Leadership Council.

"Greentown is excited to partner with Ecopetrol, an energy company taking meaningful action on climate in collaboration with the Colombian government," Greentown CEO and President Kevin Knobloch says in the release. "We look forward to seeing our startups' climate technologies advance Ecopetrol's decarbonization efforts, as well as Ecopetrol sharing its energy expertise, connections, and resources with our entrepreneurs."

Earlier this year, TotalEnergies joined the incubator at the Terawatt level, and before that, GE Vernova was the latest top-level partner, joining last fall.

Greentown Labs has a new Terawatt Partner. Photo courtesy of Greentown Labs

TotalEnergies signs on as top-level partner at climatetech incubator

onboarding

Greentown Labs, dual located in Houston and Somerville, Massachusetts, has named its latest top-level partner.

TotalEnergies has joined the incubator at the the highest level of partnership — the Terawatt level — Greentown Labs announced on January 23. Through the partnership, TotalEnergies will have access to Greentown's membership of clean energy startups and event programming.

Lotfi Hedhli, president at TotalEnergies Research & Technology U.S., will participate on Greentown’s Industry Leadership Council, providing strategic guidance to the incubator.

“We are excited to join Greentown Labs and its ecosystem to catalyze the development of potential decarbonization technologies through collaboration with promising startups,” Hedhli says in a news release. “This partnership with Greentown Labs will focus in particular on the deployment and use of renewables and low-carbon solutions, which are critical to our ambition to achieve carbon neutrality.”

TotalEnergies is among the world's largest utility-scale solar developers with activity in over 30 states in the country, including a Houston-area solar farm that went online in October. Additionally, TotalEnergies announced in November that it signed an agreement with TexGen to acquire $635 million three gas-fired power plants with a total capacity of 1.5 GW in Texas.

“At Greentown Labs, we continue to recognize and appreciate the role energy leaders play in the clean energy transition and we’re proud to have TotalEnergies join us as a Terawatt Partner,” Greentown Labs CEO and President Kevin Knobloch says in the news release. “We applaud the meaningful steps TotalEnergies is taking to expand its renewable energy portfolio and generation, and we’re eager to have their team of experts engaging directly with our climatetech entrepreneurs.”

Greentown last named a Terawatt Partner — GE Vernova — last fall.

GE Verona joins Greentown Labs as a top-tier partner. Photo via gevernova.com

Greentown Labs names GE affiliate as latest top-level partner

new to the crew

Greentown Labs, dually located in Houston and Somerville, Massachusetts, has announced its latest Terawatt Partner, which is the climatetech incubator's highest-level partnership.

Greentown Labs announced this week that GE Vernova, a global energy company that focusing on moving the energy transition through "continuing to electrify the world," has joined its top tier of partners. Greentown has over 20 of these Terawatt Partners, and GE Verona joins the ranks of Chevron, Amazon, Aramco, Microsoft, Shell, and more.

“GE Vernova embodies what we’re looking for in a partner: energy transition expertise with a deep commitment and passion for innovation, collaboration, and decarbonization,” Greentown Labs CEO and President Kevin Knobloch says in a statement. “Equally important, the team at GE Vernova has a real sense of urgency to accelerate global decarbonization and is eager to engage with our community of climatetech startups—I can’t wait to see all that we’ll accomplish together.”

GE Vernova specializes in power, wind, and electrification while keeping decarbonization at the forefront of its business. The company opened its global headquarters in Cambridge, Massachusetts just down the street from where Greentown got its start in 2011 and only a few miles from the incubator today.

“I am thrilled to join as a new partner with Greentown Labs and look to support the climatetech ecosystem in many different ways,” GE Vernova CEO Scott Strazik says in the news release. “Whether it’s innovating new technologies, the industrialization of products, or leveraging our relationships globally, we are eager to collaborate with this unique and important group of entrepreneurs, innovators, and leaders.”

With the arrangement, Limor Spector, president of Ventures and Incubation at GE Vernova, will serve on the Industry Leadership Council.

Founded in 2022, GE Verona is expected to spin off from GE in the second quarter of next year.

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Houston-based ENGIE to add new wind and solar projects to Texas grid

coming soon

Houston-based ENGIE North America Inc. has expanded its partnership with Los Angeles-based Ares Infrastructure Opportunities to add 730 megawatts of renewable energy projects to the ERCOT grid.

The new projects will include one wind and two solar projects in Texas.

“The continued growth of our relationship with Ares reflects the strength of ENGIE’s portfolio of assets and our track record of delivering, operating and financing growth in the U.S. despite challenging circumstances,” Dave Carroll, CEO and Chief Renewables Officer of ENGIE North America, said in a news release. “The addition of another 730 MW of generation to our existing relationship reflects the commitment both ENGIE and Ares have to meeting growing demand for power in the U.S. and our willingness to invest in meeting those needs.”

ENGIE has more than 11 gigawatts of renewable energy projects in operation or under construction in the U.S. and Canada, and 52.7 gigawatts worldwide. The company is targeting 95 gigawatts by 2030.

ENGIE launched three new community solar farms in Illinois since December, including the 2.5-megawatt Harmony community solar farm in Lena and the Knox 2A and Knox 2B projects in Galesburg.

The company's 600-megawatt Swenson Ranch Solar project near Abilene, Texas, is expected to go online in 2027 and will provide power for Meta, the parent company of social media platform Facebook. Late last year, ENGIE also signed a nine-year renewable energy supply agreement with AstraZeneca to support the pharmaceutical company’s manufacturing operations from its 114-megawatt Tyson Nick Solar Project in Lamar County, Texas.

Houston geothermal company raises $97M Series B

fresh funding

Houston-based geothermal energy startup Sage Geosystems has closed its Series B fundraising round and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource.

“Pressure geothermal is designed to be commercial, scalable and deployable almost anywhere,” Cindy Taff, CEO of Sage Geosystems, said in the news release. “This Series B allows us to prove that at commercial scale, reflecting strong conviction from partners who understand both the urgency of energy demand and the criticality of firm power.”

Sage reports that partnering with the Ormat facility will allow it to market and scale up its pressure geothermal technology at a faster rate.

“This investment builds on the strong foundation we’ve established through our commercial agreement and reinforces Ormat’s commitment to accelerating geothermal development,” Doron Blachar, CEO of Ormat Technologies, added in the release. “Sage’s technical expertise and innovative approach are well aligned with Ormat’s strategy to move faster from concept to commercialization. We’re pleased to take this natural next step in a partnership we believe strongly in.”

In 2024, Sage agreed to deliver up to 150 megawatts of new geothermal baseload power to Meta, the parent company of Facebook. At the time, the companies reported that the project's first phase would aim to be operating in 2027.

The company also raised a $17 million Series A, led by Chesapeake Energy Corp., in 2024.

Houston expert discusses the clean energy founder's paradox

Guest Column

Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience.

The myth of the lone genius in a garage doesn’t really apply here. Clean energy startups aren’t just fighting competitors. They are fighting physics, policy, and decades of existing infrastructure. This isn’t an app. You’re building something physical that has to work in the real world. It has to be cheaper, more reliable, and clearly better than fossil fuels. Being “green” alone isn’t enough. Scale is what matters.

Your biggest risks aren’t competitors. They’re interconnection delays, permitting timelines, supply chain fragility, and whether your first customer is willing to underwrite something that hasn’t been done before.

That reality creates a brutal filter. Successful founders in this space need deep technical knowledge and the ability to execute. You need to understand engineering, navigate regulation, and think in terms of markets and risk. You’re not just selling a product. You’re selling a future where your solution becomes the obvious choice. That means connecting short-term financial returns with long-term system change.

The capital is there, but it’s smarter and more demanding. Investors today have PhDs in electrochemistry and grid dynamics. They’ve been burned by promises of miracle materials that never left the lab. They don't fund visions; they fund pathways to impact that can scale and make financial sense. Your roadmap must show not just a brilliant invention, but a clear, believable plan to drive costs down over time.

Capital in this sector isn’t impressed by ambition alone. It wants evidence that risk is being retired in the right order — even if that means slower growth early.

Here’s the upside. The difficulty of clean energy is also its strength. If you succeed, your advantage isn’t just in software or branding. It’s in hardware, supply chains, approvals, and years of hard work that others can’t easily copy. Your real competitors aren’t other startups. They’re inertia and the existing system. Winning here isn’t zero-sum. When one solution scales, it helps the entire market grow.

So, to the founder in the lab, or running field tests at a remote site: your pace will feel slow. The validation cycles are long. But you are building in the physical world. When you succeed, you don’t have an exit. You have a foundation. You don't just have customers; you have converts. And the product you ship doesn't just generate revenue; it creates a legacy.

If your timelines feel uncomfortable compared to software, that’s because you’re operating inside a system designed to resist change. And let’s not forget you are building actual physical products that interact with a complex world. Times are tough. Don’t give up. We need you.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.