Houston is in the running to receive millions from a program from the National Science Foundation. Photo via Getty Images

The National Science Foundation announced 34 semifinalists for a regional innovation program that will deploy up to $160 million in federal funding over the next 10 years. Among the list of potential regions to receive this influx of capital is Houston.

The Greater Houston Partnership and the Houston Energy Transition Initiative developed the application for the NSF Regional Innovation Engine competition in collaboration with economic, civic, and educational leaders from across the city and five regional universities, including the University of Houston, The University of Texas at Austin, Texas Southern University, Rice University, and Texas A&M University.

The proposed project for Houston — called the Accelerating Carbon-Neutral Technologies and Policies for Energy Transition, or ACT, Engine — emphasizes developing sustainable and equitable opportunities for innovators and entrepreneurs while also pursuing sustainable and equitable energy access for all.

“The ACT Engine will leverage our diverse energy innovation ecosystem and talent, creating a true competitive advantage for existing and new energy companies across our region," says Jane Stricker, senior vice president of energy transition and executive director for HETI, in a statement. "Texas is leading the way in nearly every energy and energy transition solution, and this Engine can catalyze our region’s continued growth in low-carbon technology development and deployment."

If Houston's proposal is selected as a finalist, it could receive up to $160 million over 10 years. The final list of NSF Engines awards is expected this fall, and, according to a release, each awardee will initially receiving about $15 million for the first two years.

"Each of these NSF Engines semifinalists represents an emerging hub of innovation and lends their talents and resources to form the fabric of NSF's vision to create opportunities everywhere and enable innovation anywhere," NSF Director Sethuraman Panchanathan says in a news release. "These teams will spring ideas, talent, pathways and resources to create vibrant innovation ecosystems all across our nation."

The NSF selected its 34 semifinalists from 188 original applicants, and the next step for Houston is a virtual site visit that will assess competitive advantages, budget and resource plans for R&D and workforce development, and the proposed leadership’s ability to mobilize plans into action over the first two years.

"Houston is poised, like no other city, to lead the energy transition. The ACT Engine presents a remarkable opportunity to not only leverage the region's unparalleled energy resources and expertise but also harness our can-do spirit. Houston has a proven track record of embracing challenges and finding innovative solutions,” says Renu Khator, president of the University of Houston, in the statement. “Through the collaborative efforts facilitated by the ACT Engine, I am confident that we can make significant strides towards creating a sustainable future that harmonizes economic growth, environmental protection and social equity."

NSF Engines will announce awards this fall after a round of in-person interviews of finalists named in July. With Houston's track record for building thriving industry hubs in energy, health care, aerospace, and the culinary arts, the region is eager to establish the next generation of leaders and dreamers responding to some of the greatest economic and societal challenges ever seen in America.

“Our energy innovation ecosystem is inclusive, dynamic, and fast growing," says Barbara Burger, energy transition adviser and former Chevron executive, in the release. "The ACT Engine has the potential to increase the amount of innovation coming into the ecosystem and the capabilities available to scale technologies needed in the energy transition. I am confident that the members of the ecosystem — incubators, accelerators, investors, universities, and corporates — are ready for the challenge that the ACT Engine will provide."

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40+ climatetech startups join Greentown, including a dozen from Houston

green team

More than 40 climatetech startups joined the Greentown Labs Houston community in the second half of 2025. Twelve hail from the Bayou City.

The companies are among a group of nearly 70 that joined the climatetech incubator, which is co-located in Houston and Boston, in Q3 and Q4.

The new companies that have joined the Houston incubator specialize in a variety of clean energy applications, from green hydrogen-producing water-splitting cycles to drones that service wind turbines.

The local startups that joined Greentown Houston include:

  • Houston-based Wise Energie, which delivers turnkey microgrids that blend vertical-axis wind, solar PV, and battery storage into a single, silent system.
  • The Woodlands-based Resollant, which is developing compact, zero-emissions hydrogen and carbon reactors to provide low-cost, scalable clean hydrogen and high-purity carbon for the energy and manufacturing sectors.
  • Houston-based ClarityCastle, which designs and manufactures modular, soundproof work pods that replace traditional drywall construction with reusable, low-waste alternatives made from recycled materials.
  • Houston-based WattSto Energy, which manufactures vanadium redox flow batteries to deliver long-duration storage for both grid-scale projects and off-grid microgrids.
  • Houston-based AMPeers, which delivers advanced, high-temperature superconductors in the U.S. at a fraction of traditional costs.
  • Houston-based Biosimo, which is developing bio-based platform chemicals, pioneering sustainable chemistry for a healthier planet and economy.
  • Houston-based Ententia, which offers purpose-built, generative AI for industry.
  • Houston-based GeoKiln Energy Innovation, which is developing a new way to produce clean hydrogen by accelerating natural geologic reactions in iron-rich rock formations using precision electrical heating.
  • Houston-based Timbergrove, which builds AI and IoT solutions that connect and optimize assets—boosting visibility, safety, and efficiency.
  • Houston-based dataVediK, which combines energy-domain expertise with advanced machine learning and intelligent automation to empower organizations to achieve operational excellence and accelerate their sustainability goals.
  • Houston-based Resonant Thermal Systems, which uses a resonant energy-transfer (RET) system to extract critical minerals from industrial and natural brines without using membranes or grid electricity.
  • Houston-based Torres Orbital Mining (TOM),which develops autonomous excavation systems for extreme environments on Earth and the moon, enabling safe, data-driven resource recovery and laying the groundwork for sustainable off-world industry.

Other startups from around the world joined the Houston incubator in the same time period, including:

More than 100 startups joined Greentown this year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter.

Flatter joined Greentown in the top leadership role in February 2025. She succeeded former CEO and president Kevin Knobloch, who stepped down in July 2024.

"I moved back to the United States in March 2025 after six years overseas—2,000 miles, three children, and one very patient husband later. Over these months, I’ve had the chance to hear from the entrepreneurs, industry leaders, investors, and partners who make this community thrive. What I’ve experienced has left me brimming with urgent optimism for the future we’re building together," she said in the release.

According to Flatter, Greentown alumni raised more than $2 billion this year and created more than 3,000 jobs.

"Greentown startups and ecosystem leaders—from Boston, Houston, and beyond—are showing that we can move further and faster together. That we don’t have to choose between more energy or lower emissions, or between increasing sustainability and boosting profit. I call this the power of 'and,'" Flatter added. "We’re working for energy and climate, innovation and scale, legacy industry and startups, prosperity for people and planet. The 'and' is where possibility expands."

NRG makes latest partnership to grow virtual power plant

VPP partners

Houston-based NRG Energy recently announced a new long-term partnership with San Francisco-based Sunrun that aims to meet Texas’ surging energy demands and accelerate the adoption of home battery storage in Texas. The partnership also aligns with NRG’s goal of developing a 1-gigawatt virtual power plant by connecting thousands of decentralized energy sources by 2035.

Through the partnership, the companies will offer Texas residents home energy solutions that pair Sunrun’s solar-plus-storage systems with optimized rate plans and smart battery programming through Reliant, NRG’s retail electricity provider. As new customers enroll, their stored energy can be aggregated and dispatched to the ERCOT grid, according to a news release.

Additionally, Sunrun and NRG will work to create customer plans that aggregate and dispatch distributed power and provide electricity to Texas’ grid during peak periods.

“Texas is growing fast, and our electricity supply must keep pace,” Brad Bentley, executive vice president and president of NRG Consumer, said in the release. “By teaming up with Sunrun, we’re unlocking a new source of dispatchable, flexible energy while giving customers the opportunity to unlock value from their homes and contribute to a more resilient grid

Participating Reliant customers will be paid for sharing their stored solar energy through the partnership. Sunrun will be compensated for aggregating the stored capacity.

“This partnership demonstrates the scale and strength of Sunrun’s storage and solar distributed power plant assets,” Sunrun CEO Mary Powell added in the release. “We are delivering critical energy infrastructure that gives Texas families affordable, resilient power and builds a reliable, flexible power plant for the grid.”

In December, Reliant also teamed up with San Francisco tech company GoodLeap to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant network in Texas.

In 2024, NRG partnered with California-based Renew Home to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 to help households manage and lower their energy costs. At the time, the company reported that its 1-gigawatt VPP would be able to provide energy to 200,000 homes during peak demand.