Maria Jelescu Dreyfus is CEO and founder of Ardinall Investment Management, which is an investment firm that works in “sustainable investing and resilient infrastructure.” Photo via ExxonMobil

An energy transition expert and investor has joined Houston-headquartered ExxonMobil Corp.’s board of directors.

Maria Jelescu Dreyfus is CEO and founder of Ardinall Investment Management, which is an investment firm that works in “sustainable investing and resilient infrastructure.”

She previously spent 15 years at Goldman Sachs as a portfolio manager and managing director in the Goldman Sachs Investment Partners Group that focused on energy, industrials, transportation and infrastructure investments across the capital structure.

She currently serves as a director on the board of Cadiz Inc. and on the board of CDPQ. She also works in the energy transition space as a director on several companies' boards.

“We welcome Maria to the ExxonMobil Board as the company executes its strategy to grow shareholder value by playing a critical role in a lower-emissions future, even as we continue to provide the reliable energy and products the world needs,” Joseph Hooley, lead independent director for Exxon Mobil Corporation, says in a news release. “Her deep financial background combined with her extensive work in sustainability will complement our Board’s existing skill set.”

Dreyfus is the vice chair of the advisory board of Columbia University’s Center on Global Energy Policy, and serves as co-chair of its Women in Energy program.

“With the close of our Pioneer merger, we gained a premier, tier-one Permian asset, exceptional talent and a new Board member who brings keen strategic insight,” says ExxonMobil Chairman and CEO Darren Woods in the release. “Our boardroom, shareholders and stakeholders will greatly benefit from Maria’s experience.”

The GridStor project will boost the Electric Reliability Council of Texas grid. It’s GridStor’s first acquisition in ERCOT territory. Photo via gridstor.com

Oregon energy storage company plans 450-megawatt facility in Galveston County

coming soon

An Oregon startup has purchased a 450-megawatt battery energy storage project in Galveston County.

GridStor, a Portland, Oregon-based developer and operator of battery energy storage systems, bought the project from Moab, Utah-based Balanced Rock Power. The Utah company develops utility-scale solar and energy storage projects.

Financial terms of the deal weren’t disclosed.

GridStor, founded in 2022, is backed by Goldman Sachs Asset Management. The Portland Business Journal reported last November that Goldman Sachs had raised a $410 million fund to fuel its energy storage strategy.

Construction on the Evelyn Battery Energy Storage project is scheduled to get underway this summer, with the system projected to go online in the spring of 2025.

“Battery storage is a scalable and near-term solution to powering historic load growth in Texas,” Chris Taylor, CEO of GridStor, says in a news release. “Every day, batteries are consistently providing energy to stabilize the power system and meet hours of greatest demand in the state.”

The GridStor project will boost the Electric Reliability Council of Texas (ERCOT) grid. It’s GridStor’s first acquisition in ERCOT territory.

The project will be built near the Hidden Lakes substation, which is owned by Texas-New Mexico Power, which now just serves Texas. This proximity will enable batteries to quickly begin grid-connected operations.

This new Texas wind farm is now partly powering Target Corp. Photo via swiftcurrentenergy.com

Central Texas wind energy facility goes online to power Target Corp.

up and running

A Texas wind energy project has officially delivered and is actively providing power to its customer, Target Corp.

Boston-based Swift Current Energy, which has an office in Houston, announced this week that its 197 MW Castle Gap Wind project is operational. It has the capacity to create enough pollution-free energy to power more than 50,000 homes annually.

"Castle Gap Wind is a momentous project for Swift Current Energy as we grow our projects under asset management and operations," Eric Lammers, CEO and co-founder of Swift Current Energy, says in a news release. "Castle Gap Wind is one of the earliest projects supported by the Inflation Reduction Act, and we are thankful for our partners at Target, Goldman Sachs, MUFG, CaixaBank and of course the entire Swift Current Energy team who helped make the Project possible."

Goldman Sachs provided the tax equity for the project, and Target and Swift Current have established long-term virtual power purchase agreement. Additionally, Mitsubishi UFJ Financial Group, or MUFG, and CaixaBank provided project financing.

"Goldman Sachs is pleased to partner with Swift Current Energy on their Castle Gap Wind project," Ryan Newman, head of Tax Equity at Goldman Sachs, says in the release. "Goldman Sachs is committed to financing the energy transition and supporting sponsors like Swift Current that are developing sustainable infrastructure in an effort to combat climate change."

The project is located in the Mills and Lampasas Counties, which are around 90 miles northwest of Austin.

"This Castle Gap Wind contract is a part of our commitment to renewable energy and is one example of how we are leveraging our size and scale to benefit people, the planet and drive our business forward," Erin Tyler, Target's vice president of property management, says in the release.

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Harris County officials seek more local control over data centers

data demands

Three Harris County officials are pushing for greater local control over the development and operation of data centers.

County Attorney Abby Kamin, County Commissioner Lesley Briones and County Commissioner Adrian Garcia recently called for action to give Harris County more power to regulate data centers.

As it stands now, Harris County “has little to no authority” over the construction of data centers, Briones said at a news conference. Harris County has 55 operating, under-construction, or planned data centers, according to a document filed with the county.

Briones outlined four steps being included in the Harris County commissioners’ exploration of potentially tighter local regulation of data centers:

  • Reviewing what Harris County can and cannot do regarding data centers
  • Creating a Harris County plan for the upcoming state legislative session aimed at granting more local control over data center construction and operations. State lawmakers would need to approve any changes in local control.
  • Establishing community “listening” sessions in Harris County about data centers
  • Notifying Harris County commissioners when a proposed data center seeks permits

Kamin noted Houston and Harris County lack zoning regulations, and the county’s 34 cities set their own zoning rules. Furthermore, she said, Texas Attorney General Ken Paxton has not issued a ruling on whether counties can impose a moratorium on development of data centers.

However, she said, “limited jurisdiction does not mean limited responsibility … New technology is arriving in our communities faster than our laws and institutions can keep up with, whether that’s data centers, AI or even drones.”

The effort by Kamin, Briones, and Garcia follows Gov. Greg Abbott’s recent statewide halt of new environmental and construction permits for data centers. State permitting is frozen until the Electric Reliability Council of Texas (ERCOT) and the Public Utility Commission of Texas complete their review of data centers.

Their initiative also comes amid growing public concern over the amount of electricity and water gobbled up by data centers, as well as residents’ own rising electric and water bills.

Houston-based CenterPoint Energy expects to connect 8 gigawatts of new data-center loads in the Houston area by 2029, with about 4 gigawatts to follow, Kamin said. That, she said, would significantly increase peak power demand.

“No industry should get to monopolize or run roughshod over residents, public safety, and our critical natural resources,” Kamin said.

That being said, Kamin and Briones stressed they take pride in Houston being the Energy Capital of the World and Texas being an economic powerhouse.

“This isn’t about being against technology or new technology, but growth has to go hand in hand with accountability,” Kamin said.

Garcia said he’s open to welcoming data centers as good corporate neighbors, but not without protecting the people who live near these projects.

“I’ll keep an open mind,” he said, “but I want to know what will ultimately be the benefit to the community. And right now, I need tools [to do that].”

Houston bio-based materials co. steps into new sustainable consumer products

a cleaner shoe

A more sustainable shoe can’t be built on a single material swap. From the hard plastics hidden inside a heel to the material covering a sneaker’s upper, footwear is a collection of components—and each presents a different challenge for companies trying to move away from conventional, petroleum-based materials.

Houston-based Rheom Materials wants to change that equation. The biomaterials company has launched a sustainable footwear platform featuring two of its bio-based alternatives: Benree, a biodegradable plastic designed for hard internal components, and ShoraiDura, a durable leather alternative for footwear uppers.

“A shoe is not one material; it is multiple parts working together as a system. Substituting a single material has never moved the needle,” Rheom founder and CEO Zimri Hinshaw said in a news release. “Rheom wants to make it easier for brands to make a positive impact. By providing an assortment of bio-based materials, brands can change the system, not just a swatch of it.”

Benree is Rheom’s alternative to conventional hard plastics used in footwear construction. The company says it is a 100 percent USDA-certified bio-based, biodegradable material with performance comparable to acrylonitrile butadiene styrene (ABS), a widely used engineering plastic.

The material has passed SATRA testing for high-heel applications with Bared Footwear, an Australian footwear brand.

“At Bared, we're constantly on a journey to remove plastic from our shoes. At the same time, our brand won't compromise on quality for the end customer,” Millie Richards, Bared’s head of sustainability, added in the release. “From samples and testing, Rheom has proven to be solving both of those problems for us. We look forward to seeing how they develop as a company and would love to use them in our shoes.”

Rheom says it is also exploring Benree for additional internal components, including toe puffs and heel counters.

Rheom's Benree material was used for a high-heel prototype. Photo courtesy Rheom Materials

The company’s ShoraiDura material addresses another major part of shoe construction: the upper, which must withstand repeated flexing, friction and wear while maintaining its appearance.

Containing about 80 percent bio-based content, ShoraiDura is engineered as a durable leather alternative for footwear. Rheom says the material’s molecular structure is designed to deliver the strength and durability required for demanding applications.

To demonstrate how the material could be used in finished products, Rheom worked with a Los Angeles-based footwear manufacturer to create two prototypes: an athletic sneaker and a textured skater shoe, both featuring ShoraiDura uppers.

The two offerings reflect the company’s broader strategy. Rather than asking brands to evaluate a single material in isolation, Rheom is positioning its platform as a way to explore alternatives across different parts of footwear construction.

The next step is broader industry adoption. Benree’s testing with Bared Footwear and ShoraiDura’s footwear prototypes offer early examples of how the materials could be applied, while commercial use will depend on manufacturers’ evaluations and product-development decisions.

Rheom Materials is a Houston-based biomaterials company developing bio-based alternatives to petrochemical plastics. Its product portfolio includes Shorai, a leather alternative, and Benree, a hard plastic alternative.

The company debuted Shorai at the Houston Livestock Show and Rodeo in 2025 and showed a bio-based "leather" collection in Milan earlier this year. Read more here.

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This article originally appeared on our sister site, InnovationMap.

Houston solar manufacturer expands facility, production capacity

houston expansion

Solar tracking and manufacturing company PV Hardware USA is increasing its production capacity and expanding its Houston facility in an effort to meet growing demands.

The move marks the company's third expansion in the Houston area in three years. PV Hardware reports a 400 percent surge in national market growth over the past three years, as solar-based projects have been pivotal in energy resilience efforts.

PV Hardware plans to increase the capacity at its Houston facility by 42 percent, according to a news release. With the additional capacity, PV Hardware expects a 35 percent increase in production of pre-assembled parts. The company has not announced whether any additional employees will be hired or the costs of expansion.

In September, the company completed its new dedicated pre-assembly facility, which will help migrate difficult assembly into an easier manufacturing setting. The new pre-assembly area will also assist with streamlined field installation, enhanced schedule predictability and reduction of manual labor.

Citybiz reports that the expansion totals approximately 34,200 square feet.

PV Hardware USA aims to make solar installation more efficient. For large-scale solar projects, PV Hardware USA’s pre-assembly process helps to relieve assembly work done by installation teams. According to PV Hardware USA, it reduces the number of on-site components by 70 percent.

“Traditionally, manufacturers pushed the assembly burden onto the jobsite,” Rodolfo Bitar, vice president of business development for PVH USA, told Renewable Energy Magazine. “We ask a different question: what work can be done more efficiently before the equipment ever leaves the factory? By managing the assembly of 188 loose parts per row in our controlled manufacturing environment, we remove field complexity and make installation highly predictable.”

PV Hardware USA produces single-axis solar trackers made in Texas and has supplied over 52 gigawatts of solar trackers worldwide.

“The expanded presence in Texas underscores a long-term commitment: bringing world-class solar expertise to local American manufacturing, supporting communities, and serving as a reliable partner through the clean energy transition,” the company said in the release.

In July of 2025, the company opened its 95,000-square-foot facility, which was the second Houston location following its initial $30 million U.S. manufacturing facility, which, at 50,000 square feet, is one of America's largest solar tracker manufacturing facilities.