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TEX-E names Houston VC leader as new executive director

new hire

TEX-E, a Houston-based energy transition nonprofit, has named Sandy Guitar as its executive director. Photo courtesy TEX-E.

The Texas Exchange for Energy & Climate Entrepreneurship (TEX-E) has named Houston venture capital and innovation leader Sandy Guitar as its new executive director.

Guitar succeeds David Pruner, who will move into the board chair role.

Guitar previously served as general partner and managing director at Houston-based VC firm HX Venture Fund and is co-founder of Weathergage Capital. She also sits on the advisory board of Rice University's Liu Idea Lab for Innovation and Entrepreneurship (Lilie) and launched the Women Investing in VC in Houston group.

In a LinkedIn post, Guitar shared that she's looking forward to bringing her problem-solving skills to the energy transition.

"Innovating in the energy sector is as significant and intricate a problem as I have ever worked on — one that demands creativity, collaboration, and resourcefulness at every turn," she shared.

"I'm honored to join TEX-E at such a pivotal time in the energy transition," she added in a news release. "Energy and climate innovation is accelerating at the intersection of brilliant minds and bold ideas. I'm excited to help TEX-E amplify that collision between students who think differently and the real-world problems that demand fresh solutions."

According to TEX-E, Guitar will continue to lead the organization's programming that aims to connect student climate entrepreneurs with "industry reality."

"Sandy understands the complexities of the Texas energy ecosystem and brings a forward-looking vision for how related innovation can drive meaningful, lasting impact. She's exactly the leader we need to take TEX-E to the next level and help create the next generation of energy transition innovators," David Baldwin, TEX-E board member, added in the release.

TEX-E was founded in 2022 through partnerships with MIT Martin Trust Center for Entrepreneurship and Greentown Labs. It works with university students from six schools: Rice University, University of Houston, Prairie View A&M University, The University of Texas at Austin, Texas A&M University and MIT.

It's known for its student track within the Energy Venture Day and Pitch Competition at CERAWeek, which awarded $25,000 to HEXASpec, a Rice University-led team, at the 2025 event. It also hosted its inaugural TEX-E Conference, centered on the theme of Energy & Entrepreneurship: Navigating the Future of Climate Tech, earlier this year.

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A mix of public and private investors have funded Greentown Labs. Photo via GreentownLabs.com

Investors from Houston and Boston fuel Greentown with $4M commitment

next era

Greentown Labs, a climatetech incubator with locations in the Houston and Boston areas, has announced it has received funding from a mix of investors.

The $4 million in funding came from both of the Houston and Massachusetts locations. Houston investors included Bobby Tudor, CEO of Artemis Energy Partners and chairman of the Houston Energy Transition Initiative; David Baldwin, co-founder of OpenMinds and TEX-E and partner at SCF Partners; and Rice University. Other investors included MassDevelopment and the City of Somerville.

“The challenges of the energy transition are immense, and the role played by technology incubators like Greentown Labs is essential,” Tudor says in a news release. “We believe this role, which is a partnership between academia, industry, philanthropists, entrepreneurs, and governments, is the best way to get to effective, scalable solutions in a time frame that the urgency of the challenge requires. We need all hands on deck, and this partnership between Massachusetts and Texas can be a role model for others.”

According to Greentown, the funding will support its financial position and contribute to preparing the incubator for its next chapter of supporting its its leadership team prepare for Greentown’s next chapter supporting and growing its 575 startups.

“Greentown’s mission aligns closely with the Houston Energy Transition Initiative’s goal of accelerating global solutions to address the dual challenge of meeting growing energy demand globally while also significantly reducing CO2 emissions,” adds Steve Kean, president and CEO of the Greater Houston Partnership.

With the announcement of the funding, Greentown named its board members, including Tudor, who will serve as Greentown Labs Board Chair. The other Houston-based board members are:

  • David Baldwin, co-founder of OpenMinds and TEX-E; partner atSCF Partners
  • Bob Harvey, former president and CEO of GHP; board member of TEX-E
  • Jane Stricker, senior vice president of energy transition and executive director of HETI

“With this new funding, Greentown is poised to expand its impact across its existing ecosystems and support even more climatetech startups,” adds Kevin Dutt, interim CEO of Greentown Labs. “We believe in the essential role entrepreneurship will play in the energy transition and we’re grateful for the support of our partners who share in that belief and our collective commitment to commercializing these technologies as quickly and efficiently as possible.”

According to Greentown, the incubator plans to announce its new CEO in the coming months.

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Houston clean energy startup acquired by battery storage company FlexGen

m&a activity

A North Carolina company has acquired Houston-based Clean Energy Services, a provider of services for battery energy storage systems and utility-scale solar, for an undisclosed amount.

The buyer is Durham, North Carolina-based FlexGen Power Systems, a provider of battery energy storage software and services.

Clean Energy Services (CES), whose offices are at the Ion, will operate as a subsidiary of FlexGen. Existing CES customers will continue to receive services from CES without disruption or change, FlexGen says.

“Demand for reliable, high-performance power is accelerating, and customers need partners who can deliver at scale,” Kelcy Pegler, CEO of FlexGen, said in a news release. “The addition of CES strengthens our service platform and reinforces our leadership in energy storage technology.”

Ahmad Atwan and Constantine Triantafyllides co-founded CES in 2022. As a startup, CES had raised $8 million in venture capital, according to PitchBook.

“CES has achieved a market leadership position in battery storage services by focusing on reliable speed of service delivery and optimizing asset performance,” Atwan, the company’s CEO, added the release. “FlexGen and CES have been strong partners for years, and this transaction enables us to deliver more robust solutions across a complementary set of customers and markets.”

CES will continue to operate its remote operations center in Houston for over 1 gigawatt of solar assets and 4.5 gigawatt-hours of battery assets, while FlexGen will maintain its remote operations center in Durham.

Halliburton Labs names 4 new clean energy startups to incubator

green team

Four new companies have joined Halliburton Labs, the incubator for early-stage energy and climate startups run by Houston energy giant Halliburton.

Halliburton Labs provides the emerging companies with mentorship, industry connections, laboratory access and other resources as they work toward commercialization, according to a news release.

The four new members include:

  • Nandina REM, a Singapore-based company that delivers carbon fiber thermoplastics. It turns end-of-life assets into new, reliable, high-performance materials for the aviation, aerospace and defense industries in a fraction of the time of standard supply chains.
  • Noon Energy, a California-based company that delivers clean, reliable electricity with ultra-long duration energy storage. Its system uses solid oxide electrochemical cells and stores energy as abundant, flexible industrial gases.
  • Proof Energy, a Silicon Valley-based company developed by the Lawrence Berkeley National Laboratory that is commercializing next-generation metallic solid oxide fuel cell (M-SOFC) technology. Its system uses widely available fuels such as ethanol, methanol, ammonia, and natural gas as hydrogen carriers to enable lower-cost, low-emission commercial transportation, and also offers a zero-emission heating solution to preserve battery range in electric vehicles.
  • Tidal Metals, a New Jersey-based company that has developed technology to economically make decarbonized magnesium metal from seawater and electricity.

"Halliburton Labs exemplifies our commitment to advance a secure and pragmatic energy future," Jeff Miller, chairman, president and CEO of Halliburton, said in the news release. "We welcome these companies into our ecosystem, where they will gain access to the tools, expertise, and connections needed to scale their technologies."

Auckland-based Aquafortus Technologies and California-based Sunchem joined Halliburton Labs in September. With the addition of the four new members, the incubator currently supports six early-stage companies.

Read more about the incubator's 2025 cohort here.

Houston-area company to develop next-gen batteries for electric helicopters

emissions-free flight

Webster-based KULR Technology Group has announced a strategic co-development collaboration with Robinson Helicopter Company (RHC) to develop a next-generation, high-performance battery system for the eR66 battery-electric helicopter demonstrator.

KULR, an electronics manufacturing company, will serve as the developer of the advanced battery system for the eR66 platform. KULR will design and integrate a high-performance battery structure that uses its proprietary battery safety technologies and thermal management solutions, previously developed for aerospace and spaceflight applications.

California-based Robinson Helicopter Company is the world's leading manufacturer of civil helicopters. Its eR66 is expected to deliver zero-emission, affordable and quiet performance for “high-demand applications.”

“Robinson Helicopter has built more civil helicopters than any manufacturer on Earth, and their commitment to reliability is exactly the standard KULR’s battery architecture is designed to meet,” Michael Mo, CEO of KULR, said in a news release. “KULR’s battery systems have been qualified for NASA spaceflight. They were designed from day one for dual use: a primary flight cycle and a certified second life. The eR66 is where that architecture proves itself in rotorcraft.”

David Smith, president and CEO of Robinson Helicopter Company, cited the partnership as a shift in service for commercial and civil operations and touted the potential environmental benefits.

“By integrating electric propulsion, we aren't just reducing our environmental impact; we are unlocking critical new capabilities for life-saving missions,” Smith added in the release. “For use cases like rapid organ and tissue transport, the reduced acoustic signature and zero-emission profile ensure that time-sensitive, low-emission deliveries are faster, quieter, and more sustainable than ever before."

The companies say, through the partnership, they aim to:

  • Advance eR66 performance
  • Enhance aviation safety
  • Increase cost efficiency
  • Uphold American aerospace leadership
  • Support decarbonization
  • Promote circular economy principles
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