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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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Gold H2 has completed a successful field test. Photo courtesy of Gold H2

Houston's Gold H2 harvests clean hydrogen and more energy news to know

Trending Topics

Editor's note: There have been exciting developments in the energy transition sector this month, from Gold H2's successful field trial to a Houston leader becoming the first woman to win an international award. Below are the five biggest EnergyCapitalHTX stories from July 1-15, 2025:

Gold H2 harvests clean hydrogen from depleted California reservoirs in first field trial

Houston biotech company Gold H2's proprietary biotechnology has generated hydrogen from depleted oil reservoirs in a California field trial. Photo courtesy Gold H2.

Houston climatech company Gold H2 completed its first field trial that demonstrates subsurface bio-stimulated hydrogen production, which leverages microbiology and existing infrastructure to produce clean hydrogen. The project represented the first-of-its-kind application of Gold H2’s proprietary biotechnology, which generates hydrogen from depleted oil reservoirs, eliminating the need for new drilling, electrolysis or energy-intensive surface facilities. Continue reading.

Greentown Labs adds 6 Texas clean energy startups to Houston incubator

Six companies have joined Greentown Houston, focused on long-duration energy storage systems, 3D solar towers and more. Photo courtesy Greentown Labs.

Greentown Labs announced the six startups to join its Houston community in Q2 of 2025. The companies are among a group of 13 that joined the climatetech incubator, which is co-located in Houston and Boston, in the same time period. The companies that joined the Houston-based lab specialize in a number of clean energy applications, from long-duration energy storage systems to 3D solar towers.Continue reading.

Rice University spinout lands $500K NSF grant to boost chip sustainability

HEXAspec, founded by Tianshu Zhai and Chen-Yang Lin, has been awarded an NSF Partnership for Innovation grant. Photo courtesy of Rice

HEXAspec, a spinout from Rice University's Liu Idea Lab for Innovation and Entrepreneurship, was recently awarded a $500,000 National Science Foundation Partnership for Innovation grant. The team says it will use the funding to continue enhancing semiconductor chips’ thermal conductivity to boost computing power. HEXAspec has developed breakthrough inorganic fillers that allow graphic processing units (GPUs) to use less water and electricity and generate less heat. The technology has major implications for the future of computing with AI sustainably. Continue reading.

Oxy's Vicki Hollub becomes first woman to win prestigious energy award

Oxy CEO Vicki Hollub (center) is the first woman to win WPC Energy's Dewhurst Award. Photo via 1pointfive.com

Vicki Hollub, president and CEO of Houston-based Occidental (Oxy), has become the first woman to win WPC Energy’s prestigious Dewhurst Award. Hollub is the thirteenth recipient of the award, which is considered the highest honor from WPC Energy, a global, non-advocacy, non-political nonprofit organization that promotes the sustainable management of energy and energy products. She is just the fourth U.S. winner since the award launched in 1991. Continue reading.

10+ must-attend Houston energy transition events happening in Q3 2025

Houston Energy and Climate Startup Week returns in September. Photo via GHP

Q3 is here, and with it, a full slate of must-attend events for Houston energy professionals. On the agenda are casual mixers, exciting showcases, week-long happenings, and more. Mark your calendars for these top Houston energy transition events coming up from July to September 2025, and begin registering today. Continue reading.

HEXASpec was founded by Rice Ph.D. candidates Tianshu Zhai and Chen-Yang Lin, who are a part of Lilie’s 2024 Innovation Fellows program. Photo courtesy of Rice

3 Houston sustainability startups score prizes at Rice University pitch competition

seeing green

A group of Rice University student-founded companies shared $100,000 of cash prizes at an annual startup competition — and three of those winning companies are focused on sustainable solutions.

Liu Idea Lab for Innovation and Entrepreneurship's H. Albert Napier Rice Launch Challenge, hosted by Rice earlier this month, named its winners for 2024. HEXASpec, a company that's created a new material to improve heat management for the semiconductor industry, won the top prize and $50,000 cash.

Founded by Rice Ph.D. candidates Tianshu Zhai and Chen-Yang Lin, who are a part of Lilie’s 2024 Innovation Fellows program, HEXASpec is improving efficiency and sustainability within the semiconductor industry, which usually consumes millions of gallons of water used to cool data centers. According to Rice's news release, HEXASpec's "next-generation chip packaging offer 20 times higher thermal conductivity and improved protection performance, cooling the chips faster and reducing the operational surface temperature."

A few other sustainability-focused startups won prizes, too. CoFlux Purification, a company that has a technology that breaks down PFAS using a novel absorbent for chemical-free water, won second place and $25,000, as well as the Audience Choice Award, which came with an additional $2,000.

Solidec, a company that's working on a platform to produce chemicals from captured carbon, and HEXASpec won Outstanding Achievement in Climate Solutions Prizes, which came with $1,000.

The NRLC, open to Rice students, is Lilie's hallmark event. Last year's winner was fashion tech startup, Goldie.

“We are the home of everything entrepreneurship, innovation and research commercialization for the entire Rice student, faculty and alumni communities,” Kyle Judah, executive director at Lilie, says in a news release. “We’re a place for you to immerse yourself in a problem you care about, to experiment, to try and fail and keep trying and trying and trying again amongst a community of fellow rebels, coloring outside the lines of convention."

This year, the competition started with 100 student venture teams before being whittled down to the final five at the championship. The program is supported by Lilie’s mentor team, Frank Liu and the Liu Family Foundation, Rice Business, Rice’s Office of Innovation, and other donors

“The heart and soul of what we’re doing to really take it to the next level with entrepreneurship here at Rice is this fantastic team,” Peter Rodriguez, dean of Rice Business, adds. “And they’re doing an outstanding job every year, reaching further, bringing in more students. My understanding is we had more than 100 teams submit applications. It’s an extraordinarily high number. It tells you a lot about what we have at Rice and what this team has been cooking and making happen here at Rice for a long, long time.”

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This article originally ran on InnovationMap.

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6 must-attend Houston energy events in December 2025

Event Guide

Editor's note: The year is coming to a close, but there are still exciting energy events to attend in Houston this month. Mark your calendar now for pitch days, seminars, networking, and Reuters Energy LIVE 2025.

Dec. 4 — Resiliency & Adaptation Sector Pitch Day

Join innovators, industry leaders, investors, and policymakers as they explore breakthrough climate and energy technologies at Greentown Labs' latest installment of its Sector Pitch Day series, focused on resiliency and adaptation. Hear from Adrian Trömel, Chief Innovation Officer at Rice University; Eric Willman, Executive Director of the Rice WaTER Institute; pitches from 10 Greentown startups; and more.

This event is Thursday, Dec. 4, from 1-3:30 p.m. at the Ion. The Ion Holiday Block Party follows. Register here.

Dec. 8 — Pumps & Pipes Annual Event 2025

The annual gathering brings together cross-industry leaders in aerospace, energy and medicine for engaging discussions and networking opportunities. Connor Grennan, Chief AI Architect at the NYU Stern School of Business, will present this year's keynote address, "Practical Strategies to Increase Productivity." Other sessions will feature leaders from Cena Research Institute, NASA Ames Research Center, ExxonMobil, Southwest Airlines, and more.

This event is Monday, Dec. 8, from 8 a.m.-5 p.m., at TMC Helix Park. Register here.

Dec. 9 — Energy in Action Seminar

The Energy Transition Institute hosts a monthly Energy in Action Seminar focused on the digitization of the global energy transition. This month's topic is "Exploring AI’s Impact on the Fuels & Petrochemicals Industry," featuring speaker Leo Chiang, Senior Director of Corporate Technology at The Lubrizol Corporation. The event includes a one-hour talk followed by an hour of networking.

This event is Dec. 9 from 4-6 pm at the University of Houston.

Dec. 9-10 — Energy LIVE 2025

Energy LIVE is Reuters Events' flagship conference and expo that brings the full energy ecosystem together under one roof in Houston to solve the industry's most urgent commercial and operational challenges. The event will feature 3,000-plus senior executives across three strategic stages, a showcase of 75-plus exhibitors, and six strategic content pillars.

This event is Dec. 9-10 at NRG Park. Register here.

Dec. 11-12 — Fundamentals of The Texas ERCOT Electric Power Market

This two-day seminar provides a comprehensive overview of the structure, function, and current status of the Texas ERCOT ISO. Attendees will gain an understanding of the dynamic Texas wholesale and retail competitive markets, and learn how these markets interface with ERCOT ISO energy auctions and ISO operations. This two-day event will also address the rapidly expanding new market opportunities in Texas renewables, distributed generation, demand response, and demand side management, and more.

This event is Dec. 11-12 at the Courtyard Marriott Houston near the Galleria. Register here.

Dec. 9-11 — AST Conference & Trade Show

The 18th Annual National Aboveground Storage Tank (AST) Conference & Trade Show is the premier event for professionals in storage tank and terminal operations. Join industry leaders and experts for a three-day conference providing regulatory updates, technical insights, hands-on learning, and networking opportunities.

This event is Dec. 9-12 at The Woodlands Waterway Marriott. Register here.

Houston scientists develop 'recharge-to-recycle' reactor for lithium-ion batteries

reduce, recharge, recycle

Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.

Houston grid's $2.9 billion upgrade tops energy news to know

Trending Topics

Editor's note: It's time to look back at the top energy transition news in recent weeks. Here are the five most-read EnergyCapitalHTX stories from November 16-30:

1. CenterPoint gets go-ahead for $2.9B upgrade of Houston grid

CenterPoint customers in the Houston area will pay an extra $1 a month to cover costs of the recently approved $2.9 billion resiliency plan starting next year. Photo via centerpointenergy.com

Texas utility regulators have given the green light for Houston-based CenterPoint Energy to spend $2.9 billion on strengthening its Houston-area electric grid to better withstand extreme weather. The cost of the plan is nearly $3 billion below what CenterPoint initially proposed to the Public Utility Commission of Texas. Continue reading.

2. Houston company wins contract to operate South Texas wind farm

Houston-based CAMS will operate the Mesteño Wind Project, which is home to one of the tallest wind turbine installations in the U.S. Photo via Unsplash.

Houston-based Consolidated Asset Management Services (CAMS), which provides services for owners of energy infrastructure, has added the owner of a South Texas wind power project to its customer list. The new customer, InfraRed Capital Partners, owns the 202-megawatt Mesteño Wind Project in the Rio Grande Valley. Continue reading.

3. Google's $40B investment in Texas data centers includes energy infrastructure

Google is investing in Texas. Courtesy of Google

Google is investing a huge chunk of money in Texas: According to a release, the company will invest $40 billion on cloud and artificial intelligence (AI) infrastructure, with the development of new data centers in Armstrong and Haskell counties. The company announced its intentions at a meeting on November 14 attended by federal, state, and local leaders including Gov. Greg Abbott who called it "a Texas-sized investment." Continue reading.

4. Chevron and ExxonMobil feed the need for gas-powered data centers

Chevron plans to launch its first AI data center power project in West Texas in 2027. Photo via Chevron.com

Two of the Houston area’s oil and gas goliaths, Chevron and ExxonMobil, are duking it out in the emerging market for natural gas-powered data centers—centers that would ease the burden on electric grids. Chevron said it’s negotiating with an unnamed company to supply natural gas-generated power for the data center industry, whose energy consumption is soaring mostly due to AI. Continue reading.

5. Solidec partners with Australian company for clean hydrogen peroxide pilot​

Houston-based Solidec has partnered with Lynas Rare Earth on a clean hydrogen peroxide production pilot in Australia. Photo courtesy Greentown Labs.

Solidec has partnered with Australia-based Lynas Rare Earth, an environmentally responsible producer of rare earth oxides and materials, to reduce emissions from hydrogen peroxide production. The partnership marks a milestone for the Houston-based clean chemical manufacturing startup, as it would allow the company to accelerate the commercialization of its hydrogen peroxide generation technology. Continue reading.

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