ACCEL has opened applications for next year. Photo via Getty Images

Calling all cleantech startups founded by innovators of color — an inclusive accelerator program is now accepting applications.

Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, has opened applications for it's second cohort. The program — from Greentown Labs and Browning the Green Space — provides access to funding, networking connections, incubation space, mentorship, resources, and opportunities for energy tech founders of color for a year.

“ACCEL is one of the most impactful, meaningful programs we’ve run to date,” Greentown Labs CEO and President Kevin Knobloch says in a news release. “We are eager to expand upon the great success and momentum of year one, and to welcome another incredible cohort of BIPOC-led startups that are developing much-needed climatetech solutions. We’re equally committed to helping these companies accelerate and deploy their solutions, while also helping to build a more diverse, inclusive climatetech workforce—ACCEL sits at the nexus of those two critical efforts.”

The program, supported by the Massachusetts Clean Energy Center, accelerated six startups this year — Active Surfaces, DrinKicks, EarthBond, florrent, frakktal, and SpadXTech.

“The ACCEL Program directly aligns with our mission to ensure that climatetech jobs and wealth creation opportunities are available to all residents of the Commonwealth,” Emily Reichert, CEO at MassCEC and former CEO at Greentown, says in the release. “We are excited to see the second round of this important program, with our Equity Workforce Fund support fostering a partnership between Greentown Labs and Browning the Green Space aimed at accelerating the growth of minority and women business enterprises in Massachusetts.”

ACCEL, which doles out $25,000 in non-dilutive grant funding to each participant, is also supported by Boston-based Barr Foundation and provides programming from VentureWell, a nonprofit with expertise in climatetech.

“Through our partnership with Greentown and VentureWell, we are able to put our respective strengths together to create an ambitious program to bolster founders of color in climatetech and propel innovations that benefit communities most impacted by climate change,” Kerry Bowie, executive director and president of Browning the Green Space, says in the release. “Opening applications for Year 2 of ACCEL is an important milestone in strengthening critical support for traditionally excluded entrepreneurs in our communities.”

Applications for ACCEL are open until January 5, 2024. While entrepreneurs from anywhere can apply, preference will be given to applicants in Greater Boston and Greater Houston, where Greentown’s incubators are located.

Despite making up more than 57 percent of the workforce, women are still significantly outnumbered by men in STEM professions. The SUPERGirls Shine Foundation is hoping to change that in Houston and beyond. Photo via htxenergytransition.org

Houston organization strives for equity for energy transition for young women in STEM

the view from heti

STEM occupations account for nearly 7 percent of all U.S. occupations, however, according to the Equal Employment Opportunity Commission, women make up only 27 percent of STEM workers. Studies continue to show that between the ages 8 and 14, girls’ confidence levels drop by 30 percent and by the time they reach middle school, they completely lack confidence and self-esteem to pursue science, technology, engineering and mathematics.

Loretta Williams Gurnell is working to change the narrative for Houston students.

In 2016, Gurnell established SUPERGirls Shine Foundation, which is a Houston-based nonprofit organization that is focused on providing underserved girls with the opportunity and resources to succeed in STEM. By providing a strong STEM foundation, the organization equips girls with the tools to excel in professions that traditionally have low female and diverse representation.

In addition, the organization focuses on closing the gender gap in STEM, noting that their goal is to increase the number of girls in STEM classes, degrees and careers by 25 percent by the year 2025. Despite making up more than 57 percent of the workforce, women are still significantly outnumbered by men in STEM professions.

On a yearly basis, SUPERGirls Shine Foundation awards graduating high school seniors and collegiate ambassadors up to $10,000 dollars to close the financial gaps for college degrees. The foundation offers internships for college students and recent graduates to bring awareness, access and equity for more women and girls from underserved communities in STEM, innovation and leadership initiatives.

Through their 40/40 Mentorship Program, the foundation matches high-level industry leaders to grades 8th – 12th to provide skill-building and networking opportunities. The SUPERGirls Collegiate Ambassador Membership Program serves as a network for college students and recent graduates seeking community, careers and access to industry experts and mentors in STEM.

Learn more about Greentown Labs startup SUPERGirls Shine Foundation and how the organization is providing underserved girls with the opportunity and resources to succeed in STEM.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Katie Mehnert, founder and CEO of Ally Energy, is featured in an NOV-produced film about DEI in the energy transition. Photo via allyenergy.com

Short film focused on Houston entrepreneur, energy transition ecosystem releases online

dirty nasty people

In a new short film, a Houston energy entrepreneur sets the scene for the energy industry and showcases her passion for an equitable transition for the sector.

"Dirty Nasty People" originally premiered May 18 to the Houston community. Now, the NOV-produced film featuring Katie Mehnert and her company Ally Energy is available for viewing online.

The film, directed by Paul Dufilho, tells Mehnert's story, her passion for energy, and her career, which began at Enron, grew at Shell and BP, and took her to founding a company dedicated to diversity, equity, and inclusion in the space. Ally Energy, which was founded in 2014 as Pink Petro, is a community and talent platform for the evolving energy industry.

In the movie, Mehnert introduces the dual challenge the industry is facing — and how DEI is integral to solving it.

“On the one hand, we all need energy — affordable, reliable energy — to keep lives going,” she says in the film. “But we are harming the planet. And ourselves.

"It is complicated — this challenge is very complicated," she continues. "But it’s going to take collaboration, and diversity of thought — diversity of energy form. It’s going to take bringing people into the energy industry, into the fold, looking at this challenge in a different way — but it’s all about working together.”

Houston-based NOV Inc., an international oil and gas industry equipment and tech provider, backed the production of the film which was meant to showcase Ally, Mehnert, and the energy transition ecosystem locally.

"The energy workforce of the future will need to be as large and diverse as the technical solutions that will be needed to offset the effects of Climate Change," writes Dufilho on the website. "This project hopes to put a singular human focus on what is one of the largest issues of our day.

"There are already incredible people inside the industry doing the work of developing better energy solutions, and this project highlights just one of them," he continues. "However, the energy problems of the near future will require the perspectives and know-how of those who have not yet seen themselves as part of the solution. The outsider. The consumer. This project is for them."

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Electric truck charging network expands to Houston-Dallas freight corridor

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Greenlane Infrastructure, an electric public charging station developer and operator, is expanding outside of its home state of California and into Texas.

The Santa Monica-based company plans to launch its high-power charging sites along the Dallas–Houston I-45 corridor, which is one of the highest-volume commercial trucking routes in the country, according to a news release from Greenlane.

The sites will feature 6-8 pull-through lanes with chargers supporting combined charging system (CCS) and megawatt charging system (MCS) connectors that allow electric truck drivers to recharge their vehicles during standard rest periods. They will also offer tractor parking and charging, as well as operations that will allow for overnight stops.

Drivers can reserve chargers in advance, monitor charging activity in real time, and manage billing from the Greenlane Edge platform.

“Our customers are making commitments to electrify their fleets, and they need a charging network that can grow alongside them,” Patrick Macdonald-King, CEO of Greenlane, said in the release. “This is the first leg of the Texas triangle, one of the more important freight arteries in the country, so bringing high-power charging there is the next logical step in building a network that serves how freight moves across America.”

Greenlane is also expanding across the West Coast, with five locations under development in California and Nevada. It opened its flagship Greenlane Center in Colton, California, in April 2025. The company plans to open locations in Blythe, California, and Port of Long Beach this year.

Greelane was founded in 2023 as a joint venture between Daimler Truck North America, NextEra Energy Resources and BlackRock. It has secured partnerships with electric long-haul truck developer Windrose Technology, Velocity Truck Centers and Volvo Trucks North America.

Houston startup lands $1B from Blackstone and Halliburton, plans acquisition

power deal

Houston-based power generation startup VoltaGrid has nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton.

The investment comes in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers.

Aside from the $1 billion investment, VoltaGrid has agreed to buy Propell Energy Technology, a VoltaGrid supplier, for an undisclosed amount. Propell offers a natural gas power generation platform for AI data centers. VoltaGrid plans to add two manufacturing plants at Propell’s facilities in Granbury, a Dallas-Fort Worth suburb.

The investment and acquisition deals are expected to close in mid-2026.

Funds managed by Blackstone Tactical Opportunities are contributing to the $1 billion investment. William Nicholson, managing director of Blackstone, called VoltaGrid “a highly differentiated platform addressing one of the most important infrastructure needs of the AI era: reliable, rapidly deployable power. This investment is a strong example of Tac Opps’ focus on providing flexible, scaled capital to exceptional entrepreneurs and businesses operating in Blackstone’s highest-conviction investment themes.”

Nathan Ough, founder and CEO of VoltaGrid, said in a release that the Blackstone investment “is a powerful endorsement of the platform we have built and the role VoltaGrid is playing in delivering the energy infrastructure of the AI era.”

Last October, VoltaGrid and Halliburton said they had forged a partnership to supply power for data centers around the world, with the Middle East picked as the initial target. Two months later, the companies said they had arranged the manufacturing of 400 megawatts of natural gas power systems that’ll be delivered in 2028 to support new data centers in the Eastern Hemisphere.

Jeff Miller, president and CEO of Halliburton, said his company’s investment in VoltaGrid “reflects our shared focus on long-term solutions for the world’s most demanding power environments, and advances VoltaGrid’s ability to deliver reliable, distributed power at scale.”