Tree organization plants initiative in Houston — and other top nonprofit stories on EnergyCapital this year. Photo by Thomas Koenig/Big Pineapple Productions

Editor's note: As the year comes to a close, EnergyCapital is looking back at the year's top stories in Houston energy transition. While the responsibility of moving the needle on sustainability doesn't always fall to the shoulders of nonprofit organizations, five of the sector's top news stories from this year resonated with readers — be sure to click through to read the full story.

ExxonMobil invests $17M with nonprofit to fund more STEM instruction, resources

The ExxonMobil Foundation has invested more than $17 million in the Open Doors Project. Photo via Khan Academy

The ExxonMobil Foundation announced they are collaborating with the Khan Academy on the Open Doors Project, which aims to bring free math and science courses and teacher guides to Texas in a larger goal to inspire new STEM leaders.

The Open Doors Project will be the largest single curriculum project for Khan Academy, and will reach schools in Houston.

“Our main goal with this program is to meet the needs of Texas teachers and students,” Sal Khan, founder and CEO of Khan Academy, says in a news release. “We’re grateful for the ExxonMobil Foundation’s vision and support for developing courses and teacher guides that will deliver world-class math and science resources to students and teachers when and where they need it.” Continue reading.

Houston launches Google-backed tool to address urban tree cover disparities

American Forests is aiming to assist with at least 100 cities to make progress on Tree Equity by 2030. Photo by Thomas Koenig/Big Pineapple Productions

The oldest national nonprofit conservation organization in the U.S American Forests has launched the Houston Tree Equity Score Analyzer, which was developed through local nonprofit Trees For Houston and local stakeholders from local government, environmental groups and the public health sector, and supported by Google’s philanthropic arm Google.org with a $450,000 grant.

To mark the launch, Trees For Houston and American Forest celebrated the partnership and worked to plant 50 trees at Shadydale Elementary in Northeast Houston on December 6.

“This marks a significant milestone for Houston's urban forestry efforts,” says Texas State Representative Senfronia Thompson at the December 6 event. “This effort goes beyond simply planting trees—it’s about creating the foundation for a greener, more inclusive future for our community. By uniting diverse resources and partners, including American Forests, Google.org and Trees For Houston, we’re showcasing a powerful dedication to enhancing the environmental well-being and quality of life in our urban areas.” Continue reading.

Accenture, Goodwill-backed cleantech job accelerator celebrates Houston launch

Goodwill Houston, in collaboration with Accenture, BlocPower, and Goodwill Industries International hosted a celebration for the Clean Tech Accelerator. Photo courtesy of Accenture

A major nonprofit and a worldwide corporate leader have teamed up to advance cleantech jobs — and the program has officially celebrated its launch in Houston.

Goodwill Houston, in collaboration with Accenture, BlocPower, and Goodwill Industries International hosted a celebration for the Clean Tech Accelerator, an industry-focused full-time free jobs training program that was originally announced last year. The first cohort graduated earlier this year, and the second is ongoing.

"Through the CTA, we want to shape the future of sustainable energy in Houston by recruiting underrepresented jobseekers and equipping them with technical proficiency, safety and clean tech certifications, and facilitating placement with local employers," a representative from Accenture states in an email. "Following a quiet initial launch, this event was the official kickoff." Continue reading.

METRO rolls out electric shuttles for downtown Houston commuters

METRO Board Chair Elizabeth Gonzalez Brock and Mayor John Whitmire pose with a microtransit shuttle. Courtesy of METRO

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Continue reading.

4 Houston energy companies pledge financial support in wake of Hurricane Beryl

Four energy companies are putting their money where their mouths are following Hurricane Beryl. Photo by Brandon Bell/Getty Images

Four major energy companies in the Houston area have chipped in more than $400,000 to support relief efforts for Hurricane Beryl in Southeast Texas. Nationwide, it’s estimated that the storm caused at least $28 billion in damage and economic losses. Continue reading.

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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.

Houston AI energy forecasting company lands investment from Samsung Ventures

funding for forecasts

Amperon, a Houston-based AI-powered forecasting solutions company, has received an investment for an undisclosed amount from Samsung Ventures, the corporate venture arm of Samsung Group.

According to Amperon, the funding will be put toward the company's global growth and next-generation product development. Samsung Ventures invests in emerging businesses developing technologies for the AI, advanced devices and energy-related sectors.

“Samsung Ventures’ investment is a strong validation of our mission to transform the way energy is forecasted and traded,” Sean Kelly, CEO and co-founder of Amperon, said in a news release. “Samsung’s global footprint and leadership in semiconductors, data infrastructure, and AI acceleration make them a natural fit as we expand Amperon’s reach into energy-intensive sectors like data centers. Their track record of scaling next-generation technologies aligns perfectly with our vision to build a more intelligent, resilient, and data-driven energy system.”

Amperon was founded in 2018. Its AI models combine real-time weather, consumption and market data for energy retailers, utilities and independent power producers.

Last year, the company launched its weather-informed grid demand Mid-Term Forecast (MTF), which provides users with data on electricity demand up to seven months in advance. It also secured strategic investments from Acario, the corporate venture capital and innovation division of Tokyo Gas, as well as National Grid Partners, the venture investment and innovation arm of National Grid (NYSE: NGG).

After expanding into Europe in 2024, the company has continued to see international growth, and currently operates in the U.S., Canada, Mexico, Australia, Europe and the Middle East.

“Amperon has demonstrated strong technical capabilities and global traction in a rapidly evolving energy landscape,” a spokesperson for Samsung Ventures added in the release. “Their ability to forecast and model real-time energy data at global scale positions them as a key enabler of smarter energy systems and climate resilience. We are pleased to invest in a company developing technologies that support a more sustainable and digitized world.”