Promotions, corporate ladder climbing, and other top mover and shaker stories on EnergyCapital this year. Photos courtesy

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 new board seats to internal promotions, this year marked a big one for some of Houston's energy leaders. Here were the top five most-read articles covering the mover and shaker news of 2023 — be sure to click through to read the full story.

Global consulting firm names new Houston energy practice leader​

Alvarez & Marsal announced the appointment of Jay Johnson as senior adviser to its energy practice. Photo via alvarezandmarsal.com

A top global professional services firm named a Houston-based energy leader amid industry evolution and regulatory changes.

Alvarez & Marsal, or A&M, announced the appointment of Jay Johnson as senior adviser to its energy practice.

“I enjoy bringing together teams of people to solve the complex challenges facing companies today,” Johnson says in a news release. “I’m looking forward to working with A&M’s energy team to build leadership and capabilities to address industry challenges.”

Click here to read the article from November.

Houston carbon storage solutions company names new energy transition leader at pivotal time of growth

Graham Payne, the new director of energy transition at Caliche Development Partners II, is bullish on Houston. Photo courtesy

Graham Payne sees a bright future for the multibillion-dollar energy transition economy in Houston.

“It’s been said that Houston is poised, like no other city, to lead the energy transition. And I’d have to agree, because we have all the requisite natural resources, industry, and talent,” says Payne, the new director of energy transition at Houston-based carbon capture, utilization, and storage (CCUS) company Caliche Development Partners II.

Caliche and other Houston-based energy transition companies secured $6.1 billion in private funding last year, up 62 percent from 2022, according to the Greater Houston Partnership.

Click here to read the article from October.

Investment banking firm launches cleantech group, names Houston-based co-leader

Moelis hired Arash Nazhad as Houston-based managing director and co-head of its newly formed clean energy technology group. Photo via rice.edu

A Houston investment banker has been tapped as co-leader of a new team at investment bank Moelis & Co. that will mine the energy sector for cleantech deals.

Publicly traded Moelis said September 7 that it hired Arash Nazhad as Houston-based managing director and co-head of its newly formed clean energy technology group. Nazhad joins Moelis from financial services giant Citigroup, where he was managing director of its clean energy investment team. He worked at Citigroup for nine years.

During his tenure at Citigroup and, before that, Norwegian energy company Equinor (which operates a Houston office), Nazhad helped carry out more than $50 billion in M&A advisory activities and helped raise over $40 billion in capital for clients. He’s been involved in the rollout of more than 20 IPOs.

Click here to read the article from September.

Houston energy transition leader joins California company's board with investment

Bobby Tudor has joined the board of an energy tech company. Photo via Houston.org

A Houston business leader has taken a seat at the table of a San Francisco-based tech company.

Puloli, an IoT solutions-as-a-service company has announced an investment from, Artemis Energy Partners, a Houston group founded by Bobby Tudor. The terms of the deal were not disclosed.

With the transaction, Tudor joins Puloli's board of directors, bringing expertise from a storied career in energy transition from his roles at Tudor Pickering Holt & Co. and the Greater Houston Partnership.

"Bobby brings a tremendous amount of credibility and energy industry insight to Puloli and complements what Jodi Jahic and Aligned Partners bring to Puloli," Kethees Ketheesan, CEO of Puloli, says in a news release. "Bobby's endorsement of Puloli solution will be a big boost in accelerating our growth."

Click here to read the article from July.

Energy exec to take the reins of the Greater Houston Partnership

Steve Kean will transition from leading Kinder Morgan to assuming the role of president and CEO of the Greater Houston Partnership later this year. Photo courtesy of the GHP

A longtime energy executive has been named the next president and CEO of the Greater Houston Partnership. He'll take on the new role this fall.

The GHP named Steve Kean, who currently serves as the CEO of Kinder Morgan Inc., to the position. He's expected to transition from CEO to board of directors member at Kinder Morgan on August 1. Kean will then assume his new position at GHP no later than Dec. 1.

Dr. Marc L. Boom, GHP board chair and president and CEO of Houston Methodist, made the announcement at a press conference June 21.

“Steve brings incredible business acumen and leadership skills to the organization," Boom says in a statement. "Coupled with an extraordinary passion for Houston, he will build on the Partnership’s momentum to continue to advance greater Houston as a region of extraordinary growth and opportunity.”

Click here to read the article from June.

Graham Payne, the new director of energy transition at Caliche Development Partners II, is bullish on Houston. Photo courtesy

Houston carbon storage solutions company names new energy transition leader at pivotal time of growth

ready to grow

Graham Payne sees a bright future for the multibillion-dollar energy transition economy in Houston.

“It’s been said that Houston is poised, like no other city, to lead the energy transition. And I’d have to agree, because we have all the requisite natural resources, industry, and talent,” says Payne, the new director of energy transition at Houston-based carbon capture, utilization, and storage (CCUS) company Caliche Development Partners II.

Caliche and other Houston-based energy transition companies secured $6.1 billion in private funding last year, up 62 percent from 2022, according to the Greater Houston Partnership.

“As the region positions itself as the leader in the global energy transition, Houston has seen constant growth in annual energy transition investments over the last five years,” the partnership says.

Payne, a geologist, comes to Caliche after holding roles at Battelle and Schlumberger, among other companies. Houston-based Sudduth Search recruited Payne for the Caliche job.

In his new position, Payne is overseeing permitting and completion of a leased 4,000-acre site in Beaumont for sequestration of carbon dioxide. Payne will also work on current and potential gas storage projects, which he says “will continue to play an important role in the energy mix.”

At previous employers, Payne has tackled various aspects of CCUS.

“The really enticing part about this job is the chance to put it all together, and then operate a full-scale operation,” he says. “I want this technology to move firmly out of the research phase and start making a measurable difference against climate change.”

Payne says Caliche is capable of successfully straddling the worlds of CCUS, natural gas storage, and industrial gas storage. The Beaumont project alone will be able sequester at least 30 million metric tons of carbon, a Caliche estimate indicates.

In November, Caliche announced the acquisition of its first CCUS assets, Golden Triangle Storage and Central Valley Gas Storage, following a $268 million infusion of capital from Orion Infrastructure Capital and GCM Grosvenor. Orion maintains offices in Houston, New York City, and London. GCM is based in Chicago.

The Golden Triangle and Central Valley deals were valued at a combined $186 million.

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Houston startup strikes deal to develop hydrogen production plant in Canada

hydrogen partnership

Houston-based cleantech startup Vema Hydrogen has reached a tentative agreement with Canada-based CHARBONE Corp. to develop a hydrogen production and processing plant in Québec.

The deal would couple Vema’s production of engineered mineral hydrogen with CHARBONE’s purification, compression and distribution capabilities.

Engineered mineral hydrogen, also known as orange hydrogen, is produced underground by accelerating naturally occurring geochemical reactions in iron-rich rock formations, according to the journal Energy & Environmental Science.

“Across high-value markets — from aviation and maritime fuels to industrial gases — there is incredible demand for Vema’s low-carbon [hydrogen]. Now, more than ever, we need a pathway to deliver these low-carbon fuels,” Pierre Levin, CEO of Vema, said in a news release.

The project would enable Vema to expand into emerging markets like low-carbon maritime and aviation fuel, e-fuels and power generation. Incorporating CHARBONE’s capabilities, the agreement would also support Québec’s hydrogen supply chain.

“The market is demanding high-value industrial gases, and our customers need cleaner, more reliable supply. By pairing Vema’s [hydrogen] feedstock with our purification and distribution capabilities, we’re strengthening Québec’s position as a regional hub for next-generation hydrogen,” Dave Gagnon, CEO of CHARBONE, added in the release.

Vema said in February that it had completed drilling of its first two pilot wells in Québec, making them the world’s first pilot well for orange hydrogen. It’s the first time Vema’s technology has been used outside a lab.

“This pilot will provide the critical data needed to validate [our hydrogen] at commercial scale and demonstrate that Quebec can lead the world in this emerging clean energy category,” Levin said. “The quality of the rock within our core samples is exactly what we expected and is very promising for hydrogen yields.”

Shortly before Vema carried out the pilot drilling, it signed a 10-year deal with California-based energy technology company Verne Power to supply clean hydrogen for California data centers. Over the course of the 10-year agreement, Vema will boost annual production of orange hydrogen to more than 36,000 metric tons.

“There is a robust market for baseload power generation across the U.S., where data centers are straining the grid,” Levin said. “As we power California’s fastest-growing markets with clean hydrogen, we look toward expanding our hydrogen to markets globally and supporting AI-driven power hubs.”

Vema, founded two years ago, raised $13 million in seed funding in 2025.

“The energy transition and emerging uses of hydrogen have spurred demand for clean hydrogen,” Levin said in its funding announcement. “However, existing decarbonized hydrogen production methods simply don’t work — they are too costly and energy-intensive. Vema is here to change that. It’s time to unlock a new era of scalable, low-carbon hydrogen.”

Greentown names 5 climatech startups to manufacturing accelerator

Catalyst Cohort

Greentown Labs has named five climatech startups to its Go Make 2026 cohort, including one from Houston.

Greentown Go Make 2026 is in partnership with Shell Catalysts & Technologies and Technip Energies. Startups will be able to collaborate with leadership from Shell and Technip and have opportunities to work directly with their process engineering teams and develop potential partnerships, pilots and demonstrations, according to Greentown.

This year's manufacturing cohort focuses specifically on process technology and catalytic innovations, which, according to Greentown, have the potential to be a "critical enabler of the global energy transition." Greentown shares that 90 percent of chemical processes depend on catalysis, but traditional methods rely on fossil fuels and consume significant amounts of energy.

“Catalysis underpins the majority of industrial chemical processes, which together account for a significant share of global emissions, making it a critical lever for reducing carbon intensity while improving performance,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “Greentown Go Make 2026 is designed to close the gap between breakthrough innovation and industrial deployment. By connecting startups with Shell and Technip Energies’ technical expertise and global scale, we’re helping accelerate solutions that improve efficiency and drive industrial decarbonization.”

The five Greentown Go Make 2026 companies include:

  • Houston-based Biosimo, which makes scalable biochemicals from ethanol
  • Missouri-based Catalyxx, which transforms bioethanol into drop-in, cost-competitive, carbon-negative chemicals
  • Sydney, Australia-based HydGene Renewables, which produces low-carbon hydrogen and industrial chemicals from waste biomass
  • Switzerland-based TreaTech, which turns waste into renewable gas, water and minerals through catalytic hydrothermal gasification
  • California-based Unifuel, which has developed a chemical technology platform to make sustainable aviation fuel, renewable gasoline and other renewable chemicals

The cohort will be celebrated at a kickoff event in Houston at The Ion on June 9.

In addition to Greentown Go Make, Greentown also runs its Go Move (transportation), Go Energize (energy and electricity), Go Build (buildings), and Go Grow (food and agriculture) cohort-based programs. The climatech incubator announced its Go Build 2026 cohort in March. Read more here.