SMT Energy, CenterPoint and Irby Construction have broken ground on a 160-megawatt battery energy storage system in ERCOT's Houston zone. Photo via Getty Images

SMT Energy and CenterPoint Energy have partnered with utility infrastructure solutions provider Irby Construction Company to break ground on a 160 megawatt battery energy storage system (BESS) located in the Houston zone of the ERCOT market.

“We are proud to be underway and deliver this grid-strengthening project to Houston,” Kevin Midei, SVP of engineering, procurement and construction, at SMT Energy, said in a news release.

The BESS, SMT Houston IV, is expected to support grid stability, deliver fast-response power during peak demands and provide resiliency and renewable integration. The project is expected to be online by 2026 and store and dispatch enough electricity to power 8,800 homes in Texas annually.

SMT Energy is the project owner and developer, and CenterPoint Energy will serve as the interconnecting utility, integrating the system into Houston’s broader electrical network,” according to the companies. Irby Construction will serve as the engineering, procurement, and construction (EPC) contractor, and construction of the project is expected to be completed by July. On May 14, the companies broke ground with a ribbon-cutting ceremony to symbolize the start of the build.

“Projects like this demonstrate how collaboration and forward-thinking infrastructure come together to power a more resilient energy future,” Tony Gardner, SVP and chief customer officer at CenterPoint, said in a news release. “At CenterPoint, we recently completed nearly 90 percent of our overall grid resiliency improvements. This is one more action we are taking to build a more resilient and reliable grid to better serve our customers.”

In March, Colorado-based SMT Energy secured $135 million in funding for the SMT Houston IV, led by Macquarie and KeyBanc Capital Markets as joint lead arrangers. In 2023, SMT Energy and joint venture partner SUSI Partners announced plans to add 10 battery storage projects to Texas, which would double capacity from 100 megawatts to 200 megawatts in the Houston and Dallas areas.

In 2019, Irby began construction on the Manatee BESS site with Florida Power and Light (FPL), which was the world’s largest BESS project at the time. Irby has built over 30 BESS sites and has more than 20 currently under construction or contract.

China-based Trina Storage is starting its U.S. expansion in Houston. Photo via trinasolar.com

China-based company to launch its largest U.S. energy storage project in Houston

coming soon

Trina Storage and FlexGen, a North Carolina-based company that develops integrated energy storage systems, are bringing a 371-megawatt battery energy storage system to Houston. The project will be the largest grid-scale deployment project in North America by Trina Storage, which is a business unit of China-based Trina Solar.

"This project is a testament to Trina Storage's ability to provide a fully bankable, integrated energy storage solution that meets the evolving needs of the market," Terry Chen, vice president of Trina Storage North America, said in a news release. "As our first grid-scale deployment in North America, this achievement reflects the industry's confidence in our technology and our commitment to de-risking energy storage investments and supporting the energy transition in the region."

The project, developed by Boulder, Colorado-based SMT Energy, will utilize Trina Storage's advanced Elementa 2 battery storage system, which is designed to optimize energy performance and reliability. The system uses Trinas proprietary lithium iron phosphate cells that are more than 95 percent energy efficient, according to the company.

FlexGen will provide system integration and use its HybridOS energy management software. The HybridOS allows site operators to manage systems, detect issues faster and predict maintenance needs.

"This collaboration with Trina Storage and SMT Energy represents another major step in accelerating the deployment of flexible energy storage assets to meet growing demand," Diane Giacomozzi, COO at FlexGen, added in the release. "By pre-integrating FlexGen HybridOS with Trina's Elementa 2 energy storage solution in our Durham Innovation Lab, we're enabling faster project delivery and optimized performance from the first moment of operation."

Trina Storage currently has 10 energy storage facilities in China and two in the UK. The Houston facility is part of its plans to expand across the U.S., according to a LinkedIn post form the company.

SMT Energy is expected to bring a new battery storage facility online next year to support the ERCOT grid. Photo via Getty Images

$135 million in funding secured for new Houston battery storage facility

battery expansion

Boulder, Colorado-based SMT Energy has secured $135 million in funding for a 160-megawatt battery energy storage facility, dubbed SMT Houston IV, according to an announcement.

The new facility will work to support the ERCOT grid by providing access to stored energy. The project is expected to be online by 2026 and store and dispatch enough electricity to power 8,800 homes in Texas annually.

Macquarie and KeyBanc Capital Markets were joint lead arrangers in a $100 million project financing facility. Macquarie's Commodities and Global Markets business will also provide a preferred equity investment and are mandated to sell the project's investment tax credits of approximately $62 million, according to SMT. KeyBanc will also act as a financial advisor to SMT.

North Carolina-based battery energy storage integrator FlexGen Power Systems will obtain equipment for the project. The project will also use FlexGen's energy management system software. The software provides site integration, site control and advanced analytics insights to maximize the availability and operating ranges of battery energy storage assets.

"FlexGen is proud to partner with SMT Energy on the deployment of the SMT Houston IV project, which will deliver critical services to the dynamic ERCOT power grid," Jason Abiecunas, Executive Vice President of Business Development with FlexGen said in the release.

In 2023, SMT Energy and joint venture partner SUSI Partners announced plans to add 10 battery storage projects to Texas, doubling capacity from 100 megawatts to 200 megawatts in the Houston and Dallas areas. SMT has a 2 gigawatt per hour pipeline of battery energy storage projects in ERCOT and Southwest Power Pool targeted for commercial operation by 2030, according to the release.

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CultureMap Emails are Awesome

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."

Shell partners with UK-based co. for hydrogen electrolyzer pilot

ultra-efficient electrolyzer

Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration.

In the deal, the companies will collaborate on a paid technology feasibility study that will support the evaluation and planning of the pilot demonstration, according to a news release. Supercritical Solutions’ technology aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market.

"Signing this collaboration agreement with Shell is a major milestone for Supercritical Solutions and an important step on our commercialisation journey,” Luke Tan, co-founder of Supercritical, said in the news release. “We are directly addressing the cost and complexity barriers facing the renewable hydrogen market. We are excited to move forward with a company like Shell, whose global leadership has been proven to accelerate innovative technologies to market.”

Supercritical’s hydrogen electrolyser technology can operate at high temperatures and pressures of up to 220 bar without the need for an external hydrogen compressor, rare-earth materials or easily degradable membranes. The technology removes the typical compression step in the process while delivering hydrogen at industry standards. It requires significantly less energy than many traditional electrolyzers and is more cost-efficient.

This recent investment builds on an ongoing relationship between Shell and Supercritical. Supercritical was founded in 2020 and was runner-up in Shell’s New Energy Challenge, which helps startups and scaleups develop sustainable technologies, in 2021. Shell Ventures then invested in Supercritical’s Series A funding round in 2024 with Toyota Ventures.