3 things to know this week: Energy startups announce big wins, evaluating the IRA's first year, and more

hou knew?

How the IRA is affecting clean energy project development, events not to miss, and more things to know this week. Photo via Getty Images

Editor's note: It's a new week — start it strong with three quick things to know in Houston's energy transition ecosystem. Three energy tech startups are celebrating big wins, experts evaluate the IRA's first year, and events not to miss this week.

Eyes on the IRA

How did the IRA affect energy transition project development? Experts discussed the positive impacts — as well as the challenges still to overcome. Photo courtesy of Renewable Energy Alliance Houston

August 16 marked one year of the Inflation Reduction Act's enactment, and many have taken this first anniversary as an opportunity to look back on its effectiveness and where it's fallen short.

For Carbon Clean, a United Kingdom-founded company, the IRA made all the difference in its expansion into the United States — by way of Houston.

"The impact of the IRA cannot be overstated for our industry, especially for point source carbon capture technology companies like Carbon Clean," Co-Founder, Chair, and CEO Aniruddha Sharma shares with EnergyCapital in an interview. "The momentum created by the law's passage, along with our existing activity in North America, led to the opening of our US headquarters in Houston in March this year. We will double our US headcount to meet demand for CycloneCC, our breakthrough, fully modular carbon capture technology."

At a recent event at Rice University, experts zeroed in on the effect on clean energy project development. While the IRA opened doors for new funding, it also revealed shortcomings when it came to permitting.

"The IRA for developers has been very positive. It provided certainty and allowed developers and investors alike to plan long term," says Omar Aboudaher, senior vice president of development for Leeward Renewable Energy. "With that comes challenges, including exacerbating some existing problems with permitting."

Energy tech startup wins

These three startups have something to celebrate. Photo via Getty Images

Three energy tech startups had some big wins last week — let's take a look.

Nauticus Robotics, a Houston-based tech company providing software and hardtech solutions for industrial and government entities, secured a $2.1 million contract extension with one of its biggest clients. Read more.
France-based Engie announced that it will acquire Houston-based battery storage startup Broad Reach Power in $1 billion deal. The company launched in 2019 with backing from EnCap Energy Transition, an arm of Houston-based private equity firm EnCap Investments. Read more.
Austin-based energy software company P6 Technologies closed a $3.25 million seed round of funding with support from a handful of Houston investors from GOOSE Capital, Artemis Energy Partners, Tupper Lake Partners, and Veritec Ventures. Read more.

Upcoming events to put on your radar

Mark your calendars. Photo via Getty Images

Plan the rest of your August accordingly.

August 28-30 — Industrial IMMERSIVE Week attracts the most industrial, energy, and engineering tech professionals making investment, strategy and tactical decisions, or building, scaling and executing pioneering XR/3D/Simulations, digital twin, reality capture, edge /spatial computing, AI/ML, connected workforce & IIoT projects within their enterprise.
August 30 — 2023 Energy Research Day will be a showcase of outstanding energy-related research by University of Houston graduate and postdoctoral students. Sponsored by the Division of Research and Graduate School, the event gives industries in the Greater Houston area a chance to see UH research up close and network with future collaborators.
August 30-31 — Carbon & ESG Strategies Conference, presented by Hart Energy, will highlight carbon capture and storage projects and technologies onshore and offshore, direct air capture, enhanced oil recovery, responsibly sourced gas, renewable natural gas, federal funding challenges and insurance issues, ESG initiatives, regulatory concerns and much more.

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Houston geothermal company raises $97M Series B

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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.

Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

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