Show me the money: Top Houston energy transition funding, investment news from 2024

year in review

Here were this year's most-read funding news stories on EnergyCapital. Photo via Getty Images

Editor's note: As the year comes to a close, EnergyCapital is looking back at the year's top stories in Houston energy transition. From firms with fresh funding to deploy to energy tech companies to startups raising venture capital investment, Houston has some wins to celebrate this year when you follow the money. Here were the top five most-read articles — according to EnergyCapital reporting — covering investment deals of 2024. Be sure to click through to read the full story.

Houston PE firm unveils oversubscribed $450M fund to advance nuclear power innovation

Pelican Energy Partners has raised more than it intended with its new nuclear-focused fund. Photo via Getty Images

Houston-based private equity firm Pelican Energy Partners has raised a $450 million fund to invest in nuclear energy services and equipment companies.

Pelican had aimed to raise $300 million for Pelican Energy Partners Base Zero LP and had imposed an initial “hard cap” of $400 million. Investors include endowments, foundations, family offices, and pension plans.

As of the fund’s closing date, the fund had wrapped up six investments, with several more deals expected to close by the end of this year. Continue reading.

Robotics co. with growing Houston presence closes series B

The advanced submersible robotics company will put the funds toward international expansion. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc. closed a series B round of funding last month.

The advanced submersible robotics company raised $13 million, according to Tracxn.com, and says it will put the funds toward international expansion.

"This Series B round, our largest to date, enables us to accelerate our growth plans and meet the surging global demand for our services,” David Lamont, CEO, said in a statement. Continue reading.

Houston industrial decarbonization-focused PE firm scores $725M to launch new business unit

HF Capital, the Knoxville, Tennessee-based investment arm of the Haslam family, made the multimillion-dollar commitment to set up Ara Energy Decarbonization. Photo via arapartners.com

Houston-based Ara Partners, a private equity firm that focuses on industrial decarbonization investments, is receiving up to $725 million from a Tennessee-based family office to launch an energy decarbonization unit.

HF Capital, the Knoxville, Tennessee-based investment arm of the Haslam family, made the multimillion-dollar commitment to set up Ara Energy Decarbonization. The new business will work toward reducing carbon emissions at ethanol plants, natural gas power plants, and other traditional energy assets.

The Haslam family founded Pilot Co., North America’s largest transportation fuel business and chain of travel centers. Shameek Konar, former CEO of Pilot, has been tapped to lead Ara Energy Decarbonization. Continue reading.

Houston-based clean energy site developer raises $300M to decarbonize big tech projects

As emerging technology continues to grow electricity load demand, Cloverleaf has identified an opportunity to develop large-scale digital infrastructure sites powered by low-carbon electricity. Photo via Getty Images

Houston energy executives have started a new company dedicated to developing clean-powered infrastructure for the large electric loads.

Cloverleaf Infrastructure, dually headquartered in Houston and Seattle, Washington, announced its launch and $300 million raised from NGP and Sandbrook Capital, two private equity firms. The company's management team also invested in the company.

As emerging technology continues to grow electricity load demand, Cloverleaf has identified an opportunity to develop large-scale digital infrastructure sites powered by low-carbon electricity.

"The rapid growth in demand for electricity to power cloud computing and artificial intelligence poses a major climate risk if fueled by high-emission fossil fuels," David Berry, Cloverleaf's CEO, says in a news release. "However, it's also a major opportunity to catalyze the modernization of the US grid and the transition to a smarter and more sustainable electricity system through a novel approach to development." Continue reading.

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

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

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.” Continue reading.

The advanced submersible robotics company will put the funds toward international expansion. Photo courtesy of Square Robot

Robotics co. with growing Houston presence closes series B

money moves

Houston- and Boston-based Square Robot Inc. closed a series B round of funding last month.

The advanced submersible robotics company raised $13 million, according to Tracxn.com, and says it will put the funds toward international expansion.

"This Series B round, our largest to date, enables us to accelerate our growth plans and meet the surging global demand for our services,” David Lamont, CEO, said in a statement.

The company aims to establish a permanent presence in Europe and the Middle East and grow its delivery services to reach four more countries and one new continent in Q1 2025.

Additionally, Square Robot plans to release a new robot early next year. The robot is expected to be able to operate in extreme temperatures up to 60 C. The company will also introduce its first AI-enabled tools to improve data collection.

Square Robot launched its Houston office in 2019. Its autonomous, submersible robots are used for storage tank inspections and eliminate the need for humans to enter dangerous and toxic environments.

The company was one of the first group of finalists for the Houston Innovation Awards' Scaleup of the Year, which honors a Bayou City company that's seen impressive growth in 2024. Click here to read more about the company's growth.

The deal brings Fervo's total funding secured this year to around $600 million. Photo courtesy of Fervo

Houston-based Fervo Energy collects $255M in additional funding

cha-ching

A Houston company that's responding to rising energy demand by harnessing geothermal energy through its technology has again secured millions in funding. The deal brings Fervo's total funding secured this year to around $600 million.

Fervo Energy announced that it has raised $255 million in new funding and capital availability. The $135 million corporate equity round was led by Capricorn’s Technology Impact Fund II with participating investors including Breakthrough Energy Ventures, CalSTRS, Congruent Ventures, CPP Investments, DCVC, Devon Energy, Galvanize Climate Solutions, Liberty Mutual Investments, Mercuria, and Sabanci Climate Ventures.

The funding will go toward supporting Fervo's ongoing and future geothermal projects.

“The demand for 24/7 carbon-free energy is at an all-time high, and Fervo is one of the only companies building large projects that will come online before the end of the decade,” Fervo CEO and Co-Founder Tim Latimer says in a news release. “Investors recognize that Fervo’s ability to get to scale quickly is vital in an evolving market that is seeing unprecedented energy demand from AI and other sources.”

Additionally, Fervo secured a $120 million letter of credit and term loan facility from Mercuria, an independent energy and commodity group that previously invested in the company.

“In surveying power markets across the U.S. today, the need for next-generation geothermal is undeniable,” Brian Falik, group chief investment officer of Mercuria, adds. “We believe in Fervo not just because their EGS approach is cost-effective, commercially viable, and already being deployed at scale, but because they set ambitious targets and consistently deliver.”

In February, Fervo secured $244 million in a financing round led by Devon Energy, and in September, the company received a $100 million bridge loan for the first phase of its ongoing project in Utah. This project, known as Project Cape, represents a 100x growth opportunity for Fervo, as Latimer explained to InnovationMap earlier this year. As of now, Project Cape is fully permitted up to 2 GW and will begin generating electricity in 2026, per the company.

Other wins for Fervo this year include moving into its new headquarters in downtown Houston, securing a power purchase agreement with California, growing its partnership with Google, and being named amongst the year's top inventions by Time magazine.

———

This article originally ran on InnovationMap.

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.

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.

Jupiter Power's Houston facility went online earlier this year. Photo courtesy of jupiterpower.io

Texas developer closes $225M to supercharge US energy storage expansion

growth ahead

Austin-based developer and operator of utility-scale battery energy storage systems Jupiter Power has announced the successful closing of a $225 million corporate credit facility.

The transaction strengthens Jupiter Power’s U.S. portfolio, which includes one of the nation’s largest energy storage development pipelines, totaling over 12,000 megawatts. Jupiter Power, which also has offices in Houston, began commercial operations with the launch of its 400-megawatt-hour battery facility, Callisto I, in central Houston in August of 2024.

"Securing this corporate credit facility highlights the market's recognition of Jupiter Power as a leader in advancing large-scale energy storage solutions, as evidenced by our 2,575 megawatt hours of battery energy storage systems already in operation or construction," Jupiter Power CFO Jesse Campbell says in a news release. “This funding enhances our ability to advance projects across our pipeline in markets where energy storage is needed most. We greatly appreciate the support of our banking partners in this transaction.”

The $225 million in total revolving credit facilities will include up to $175 million in letters of credit and $50 million in revolving loans. Leading on the lender side includes Barclays Bank PLC, HSBC Bank USA, and Sumitomo Mitsui Banking Corp.

“HSBC is proud to support Jupiter Power with their credit facility as they continue to expand and accelerate the development of their energy storage projects across the United States,” Paul Snow, head of renewables - Americas at HSBC adds. “HSBC’s inaugural facility with Jupiter Power not only reinforces our commitment to financing premiere clean energy projects, but complements our ambition to deliver a net zero global economy.”

The Houston project is the first in the area, and Jupiter Power's ninth to deliver energy storage to ERCOT, which brings its total ERCOT fleet to 1,375-megawatt-hour capacity.

HF Capital, the Knoxville, Tennessee-based investment arm of the Haslam family, made the multimillion-dollar commitment to set up Ara Energy Decarbonization. Photo via arapartners.com

Houston industrial decarbonization-focused PE firm scores $725M to launch new business unit

this just in

“It is an uncomfortable truth that highly pollutive energy sources are going to play an essential role in delivering an energy transition over the next several decades,” Charles Cherington, co-founder and managing partner of Ara, says in a news release. “We can ignore these staggering carbon emissions, or we can apply our proven methods and financing expertise to decarbonize the conventional energy value chain.”

The energy sector accounts for more than 75 percent of global greenhouse gas emissions.

“The world’s energy demands are increasing and complex, and renewable power needs time and support for it to fulfill rising global energy demand. Ara’s … skillset, portfolio network, and decarbonization management knowledge [are] perfectly positioned to attack the carbon-intensive energy sector,” Konar says.

Ara Partners closed its third private equity fund in December 2023 with over $2.8 billion in new commitments. As of June 30, 2024, Ara Partners had about $6.3 billion of assets under management.

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Houston-based NRG announces new CEO and succession plan

new leader

Houston-based NRG Energy Inc. announced Jan. 7 that it has appointed Robert J. Gaudette as president and CEO. Gaudette took over as president effective Jan. 7 and will assume the role of CEO April 30, coinciding with the company's next stockholder meeting.

Gaudette, who previously served as executive vice president and president of NRG Business and Wholesale Operations, will succeed Lawrence Coben in the leadership roles. Coben will remain an advisor to NRG through the end of the year and will also continue to serve as board chair until April 30. Antonio Carrillo, lead independent director at NRG, will take over as board chair.

"Rob has played a central role in strengthening NRG’s position as a leader in our industry through strategic growth, operational excellence, and customer-focused innovation," Coben said in the news release. "He is a strong, decisive leader with extensive knowledge of our business, markets, and customers. The Board and I are confident that Rob is the right person to lead NRG forward and take the NRG rocket ship to new heights. I can’t wait to see what comes next.”

Gaudette has been with NRG since 2001. He has served as EVP of NRG Business and Market Operations since 2022 and president of NRG Business and Market Operations since 2024. In these roles, he led NRG’s power generation and oversaw its portfolio of commercial and industrial products and services as well as its market operations, according to the company.

He has held various executive leadership roles at NRG. He earned his bachelor's degree in chemistry from The College of William and Mary and an MBA at Rice University, where he was a Jones Scholar. He also served four years as an Army officer.

“It is an honor to be appointed NRG’s next CEO at this transformative time for the energy sector and our company,” Gaudette said in the release. “With NRG’s electricity, natural gas and smart home portfolio, we are ideally positioned to meet America’s evolving energy needs. I am grateful to Larry and all my NRG colleagues, both past and present, who built our great company and positioned us for the future. I look forward to leading our incredible team to deliver affordable, resilient power for the customers and communities we serve, while creating substantial value for our shareholders.”

In addition to its traditional power generation and electricity businesses, NRG has been working to develop a 1-gigawatt virtual power plant by connecting thousands of decentralized energy sources by 2035 in an effort to meet Texas’ surging energy demands.

The company announced partnerships last year with two California-based companies to bolster home battery use and grow its network. NRG has said the VPP could provide energy to 200,000 homes during peak demand.

10+ must-attend Houston energy events happening in Q1 2026

Mark Your Calendar

Editor's note: With the new year comes a new slate of must-attend events for those in the Houston energy sector. We've rounded up a host of events to put on your calendar for Q1, including some that you can attend this month. Plus, other premier annual events will return in February and March 2026 and are currently offering early-bird, discounted registration. Book now.

Jan. 7-8 — AAPG Subsurface Energy to Power Workshop

This two-day AAPG workshop explores the expanding role of natural gas, geothermal, hydrogen, lithium, and uranium in accelerating electricity capacity. Participants will examine innovative solutions designed to reduce reliance on long-distance transmission lines, pipelines, and other costly infrastructure. Throughout the workshop, attendees will gain insight into both the technical deployment of subsurface resources and the land, legal, and permitting factors that influence project development.

This event begins Jan. 7 at Norris Conference Center at CityCentre. Register here.

Jan. 19-22 — PPIM 2026

The 38th international Pipeline Pigging & Integrity Management Conference and Exhibition takes place over four days at the George R. Brown Convention Center and the Hilton Americas. This industry forum is devoted exclusively to pigging for pipeline maintenance and inspection, engineering assessment, repair, risk management, and NDE. Two days of courses will take place Jan. 19-20, followed by the conference on Jan. 21-22, and the exhibition running Jan. 20-22. Register here.

Jan. 22 — MicroSeismic - Romancing Energy Forum

This forum will feature raw, unfiltered stories from the pioneers who changed the trajectory of American Shale. Attendees will gain insights into the playbooks, decisions, data, and lessons learned behind the biggest discoveries and engineering triumphs in modern energy. Keynote speakers include Tom and Diane Gates of Gates Ranch.

This event begins at 8 am on Jan. 22 at Norris Conference Center at CityCentre. Register here.

Jan. 22 — Houston Downton Luncheon: Beyond the Barrel: Pricing, Transition, and Geopolitics in 2026

Women's Energy Network Houston Chapter hosts this January lunch and learn featuring guest speaker Ha Nguyen with S&P Global Energy. Nguyen will discuss the global energy outlook for 2026, with a focus on strategic drivers, such as decarbonization and EV adoption, and a look at Houston's crucial role in the future of the U.S. market.

This event begins at 11:30 am on Jan. 22 at The Houston Club. Register here.

Feb. 18-20 — NAPE Summit Week 2026

NAPE is the energy industry’s marketplace for the buying, selling, and trading of prospects and producing properties. NAPE brings together all industry disciplines and companies of all sizes, and in 2026 it will introduce three new hubs — offshore, data centers, and critical minerals — for more insights, access, and networking opportunities. The event includes a summit, exhibition, and more.

This event begins Feb. 18 at George R. Brown Convention Center. Register here.

Feb. 24-26 — 2026 Energy HPC & AI Conference

The 2026 Energy HPC & AI Conference marks the 19th year for the Ken Kennedy Institute to convene experts from the energy industry, academia, and national labs to share breakthroughs for HPC and AI technologies. The conference returns to Houston with engaging speaker sessions, a technical talk program, networking receptions, add-on workshops, and more.

This event begins Feb. 24 at Rice University's BRC. Register here.

Feb. 26 — February Transition on Tap

Mix and mingle at Greentown Labs' first Transition on Tap event of the year. Meet the accelerator's newest startup members, who are working on innovations ranging from methane capture to emissions-free manufacturing processes to carbon management.

This event begins at 5:30 pm on Feb. 26 at Greentown Labs Houston. Register here.

March 2-4 — The Future Energy Summit

The Future Energy Summit is a premier global event bringing together visionaries, industry leaders, and energy experts to shape the future of energy. The second edition of the conference will provide a platform for groundbreaking discussions, cutting-edge technologies, and transformative strategies that will accelerate the energy transition.

This event begins March 2. Register here.

March 10-12 — World Hydrogen & Carbon Americas

S&P Global Energy brings together two leading events — Carbon Management Americas and World Hydrogen North America — to form a new must-attend event for those in the hydrogen and carbon industries. More than 800 senior leaders from across the energy value chain will attend this event featuring immersive roundtable discussions, hands-on training, real-world case studies, and unparalleled networking opportunities.

This event begins March 10 at Marriott Marquis Houston. Register here.

March 23-27 — CERAWeek 2026

CERAWeek 2026 will focus on "Convergence and Competition: Energy, Technology and Geopolitics." The industry's foremost thought leaders will convene in Houston to cultivate relationships and exchange transformative ideas during the annual event. Through the lens of 16 dynamic themes, CERAWeek 2026 will explore breakthroughs, cross-industry connections, and powerful partnerships that are accelerating the transformation of the global energy system.

This event begins March 23. Register here.

Japanese company launches solar module manufacturing at Houston-area plant

solar plant

A local subsidiary of a Japanese solar equipment manufacturer recently began producing solar modules at a new plant in Humble.

TOYO Co. Ltd.’s TOYO Solar LLC subsidiary can produce 1 gigawatt worth of solar modules per year at a 567,140-square-foot plant it leases in Lovett Industrial’s Nexus North Logistics Park on Greens Road. TOYO Solar’s next phase will accommodate 2.5 gigawatts’ worth of solar module manufacturing. The subsidiary eventually plans to expand manufacturing capacity to 6.5 gigawatts.

For now, TOYO Solar operates only one assembly line at the Humble plant. Once TOYO Solar has five assembly lines up and running, it could employ as many as 750 manufacturing workers there, according to Connect CRE.

TOYO says the plant enlarges its U.S. footprint “to be closer to the majority of its clients, meet the demand for American-made solar panels, and contribute to the growing demand for secure, sustainable energy solutions as demands on the grid continue to rise.”

Last month, TOYO purchased the remaining 24.99 percent stake in TOYO Solar to make it a wholly owned subsidiary. TOYO entered the Houston-area market through its 2024 acquisition of a majority stake in Solar Plus Technology Texas LLC.

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