Debalina Sengupta has been named as the chief operating officer of UH's Energy Transition Institute. Photo via UH.edu

The University of Houston has named a new C-level executive to its energy transition-focused initiative.

Debalina Sengupta has been named as the chief operating officer of UH's Energy Transition Institute, which was established in 2022 by a $10 million commitment from Shell USA Inc. and Shell Global Solutions (US) Inc. The institute focuses on hydrogen, carbon management and circular plastics and works closely with UH’s Hewlett Packard Enterprise Data Science Institute and researchers across the university.

Sengupta, who was previously a chemical engineer with over 18 years of experience with sustainability and resilience issues, was called to ETI’s mission and its focus on Houston, which is home to more than 4,500 energy companies and a pivotal international oil and gas hub.

“UH Energy Transition Institute is the first of its kind Institute setup in Texas that focuses solely on the transition of energy,” she says in a news release. “A two-way communication between the academic community and various stakeholders is necessary to implement the transition and I saw the UH ETI role enabling me to achieve this critical goal.”

Originally from India, where she saw first-hand the impact of natural disasters, she has been working with Texas coastal communities over the past two years to not help bring coastal resilience projects along the coast. The Texas coast will serve potentially as an economic development zone for several energy transition projects.

“It is necessary that we think deeply about sustainability quantification for our energy systems, diversify and expand from fossil to non-fossil resources, and understand how it can impact our future generations,” Sengupta continues. “This requires rigorous training and adopting new technologies that will enable the change, and I am dedicated to work towards this goal for UH ETI.”

Sengupta has also worked as a postdoctoral research fellow in the U.S. Environmental Protection Agency. She has a bachelor’s degree in chemical engineering from Jadavpur University in India and a doctorate from Louisiana State University with a focus on process systems engineering. Sengupta previously was at Texas A&M University where she was the Coastal Resilience Program director for Texas Sea Grant,which is a federal-state partnership program funded by the U.S. Department of Commerce National Oceanic and Atmospheric Administration. She has served as the associate director of the Texas A&M Engineering Experiment Station’s Gas and Fuels Research Center; coordinator of the Water, Energy and Food Nexus at Texas A&M Energy Institute; and lecturer at the Artie McFerrin Department of Chemical Engineering.

The ETI has helped catalyze “cross-disciplinary cooperation” to expand funding opportunities for UH faculty, which includes direct funding of over 24 projects via seed grants. As the new COO, Sengupta will work alongside founding executive director of the institute, Joe Powell, their executive team and the ETI advisory board to develop and implement strategic plans. Her position is partially funded by a $500,000 grant from the Houston-based Cullen Foundation.

“We are excited to have Dr. Sengupta join us at UH to help drive the Energy Transition Institute to fulfill its mission in educating students, expanding top-tier research, and providing thought leadership in sustainable energy and chemicals for the Houston area and beyond,” Powell adds. “Dr. Sengupta brings a strong background and network in collaborating with academic, community, governmental and industry partners to build the coalitions needed for success.”

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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.

3 Houston-area companies named to Global Cleantech 100

Energized

Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list.

The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years.

For the 2026 list, Cleantech Group received more than 24,000 Global Cleantech 100 nominations from nearly 60 countries. Cleantech Group scored those companies and narrowed the contenders to 264. An expert panel reviewed those nominees, and the list was whittled down to the 100 winners.

Here’s a rundown of the three Houston-area honorees:

Amperon

Founded in 2018 by Sean Kelly and Abe Stanway, Houston-based Amperon offers an AI-enabled energy forecasting and analytics platform designed to help stabilize electric grids. Amperon received undisclosed amounts of venture capital from National Grid Partners and Tokyo Gas Co. Ltd. last year and announced a recent investment from Samsung Ventures earlier this month.

Hertha Metals

Founded in 2022 by Laureen Meroueh, Conroe-based Hertha Metals provides a single-step process for producing sustainable steel. Last year, the company emerged from stealth mode and raised more than $17 million in venture capital.

Vaulted Deep

Vaulted Deep’s technology injects excess organic waste underground to remove carbon dioxide from the atmosphere. Julia Reichelstein and Omar Abou-Sayed founded the Houston-based company in 2023. Last year, the startup raised $32.3 million in venture capital. Also in 2025, Vaulted Deep signed a 12-year deal with software giant Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Vaulted Deep also made the list last year, along with Houston-based Syzygy Plasmonics and Fervo Energy. Fervo was also named the 2025 North American Company of the Year by Cleantech Group.