Nine companies have joined Greentown Houston. Photo via Getty Images

Greentown Labs announced that it added nine climatetech start-ups in Q2 of this year.

The new members of the incubator, which is co-located in Houston and Boston, work in a variety of fields from electricity to manufacturing and agriculture.

The companies in the Houston location include:

  • GS Vortex Systems, a Portland-based company that focuses on cost reduction and flow assurance in piping systems. Its hydrodynamic flow technology allows for higher flow through existing pipes that increases productivity and reduces emissions. It’s based in Houston and Tampa.
  • BiaTech Corporation, applies AI and machine learning fto natural resource infrastructure immersion to help energy and utilities produce more with lower risks of production disruptions
  • InfraNergy, a Florida-based clean energy infrastructure provider that develops clean energy projects via virtual power plants to reduce power costs and drive decarbonization
  • Neuralix, a Dallas-based startup that offers a suite of rapid, customizable templates for data lifecycle for the energy and manufacturing sectors
  • Reverse Energy Solutions, a Chicago-based startup that provides cost-effective solar panel recycling through streamlined collection and transportation processes
  • Terralytiq, which has developed an enterprise software platform for industrial supply chains, that helps reduce supply chain costs and carbon. It’s headquartered in Austin.
  • EnergyGigs, a talent and freelance platform for the energy industry based in Houston
  • Metalex, a commodity trading firm with operations in Africa that delivers carbon-neutral critical metals that are processed in a decarbonized supply chain
  • TDS Select, which has developed a modular, scalable water-treatment technology to desalinate brackish water using low-energy

According to Greentown, another 11 startups joined the nonprofit's Boston incubator.

Greentown Labs, with the Browning the Green Space, named the second cohort for the Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, in the spring. The accelerator, which works to advance BIPOC-led startups in the climatetech space, launched in 2022.

It also named 6 energy tech startups to Shell-backed accelerator in October.

Earlier this month the climatetech incubator added three new members to its board of directors. This came after CEO and President Kevin Knobloch announced he would be stepping down at the end of July. Kevin Dutt was recently named interim CEO of the organization.

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Houston renewables developer lands $85M for nationwide solar projects

fresh funding

Houston-based Catalyze, a developer of independent power systems, announced it has secured an $85 million tax equity investment from RBC Community Investments.

“RBC’s investment in this portfolio demonstrates our commitment to advancing clean energy solutions within local communities,” Jonathan Cheng, managing director at RBC, said in a news release. “We are excited to partner with Catalyze on the strategic deployment of these and future projects.”

The financing will go toward the construction and completion of 75 megawatts of commercial and industrial solar projects nationwide in 2025. Catalyze’s current generation portfolio now totals 300 megawatts of projects in operations and construction.

The transaction will help Catalyze’s existing relationship with RBC, which demonstrates a commitment to advancing renewable energy solutions at scale.

“RBC is a valued financing partner, and we are pleased to further expand our relationship with this latest investment,” Jared Haines, CEO of Catalyze, said in a news release. “This financing enables us to further our mission to bring scalable distributed generation projects to businesses and communities nationwide.”

Catalyze also has other private equity sponsors in EnCap Investments and Actis.

Last May, Catalyze announced that it secured $100 million in financing from NY Green Bank to support a 79-megawatt portfolio of community distributed generation solar projects across New York state.

UH's $44 million mass timber building slashed energy use in first year

building up

The University of Houston recently completed assessments on year one of the first mass timber project on campus, and the results show it has had a major impact.

Known as the Retail, Auxiliary, and Dining Center, or RAD Center, the $44 million building showed an 84 percent reduction in predicted energy use intensity, a measure of how much energy a building uses relative to its size, compared to similar buildings. Its Global Warming Potential rating, a ratio determined by the Intergovernmental Panel on Climate Change, shows a 39 percent reduction compared to the benchmark for other buildings of its type.

In comparison to similar structures, the RAD Center saved the equivalent of taking 472 gasoline-powered cars driven for one year off the road, according to architecture firm Perkins & Will.

The RAD Center was created in alignment with the AIA 2030 Commitment to carbon-neutral buildings, designed by Perkins & Will and constructed by Houston-based general contractor Turner Construction.

Perkins & Will’s work reduced the building's carbon footprint by incorporating lighter mass timber structural systems, which allowed the RAD Center to reuse the foundation, columns and beams of the building it replaced. Reused elements account for 45 percent of the RAD Center’s total mass, according to Perkins & Will.

Mass timber is considered a sustainable alternative to steel and concrete construction. The RAD Center, a 41,000-square-foot development, replaced the once popular Satellite, which was a food, retail and hangout center for students on UH’s campus near the Science & Research Building 2 and the Jack J. Valenti School of Communication.

The RAD Center uses more than a million pounds of timber, which can store over 650 metric tons of CO2. Aesthetically, the building complements the surrounding campus woodlands and offers students a view both inside and out.

“Spaces are designed to create a sense of serenity and calm in an ecologically-minded environment,” Diego Rozo, a senior project manager and associate principal at Perkins & Will, said in a news release. “They were conceptually inspired by the notion of ‘unleashing the senses’ – the design celebrating different sights, sounds, smells and tastes alongside the tactile nature of the timber.”

In addition to its mass timber design, the building was also part of an Energy Use Intensity (EUI) reduction effort. It features high-performance insulation and barriers, natural light to illuminate a building's interior, efficient indoor lighting fixtures, and optimized equipment, including HVAC systems.

The RAD Center officially opened Phase I in Spring 2024. The third and final phase of construction is scheduled for this summer, with a planned opening set for the fall.

Experts on U.S. energy infrastructure, sustainability, and the future of data

Guest column

Digital infrastructure is the dominant theme in energy and infrastructure, real estate and technology markets.

Data, the byproduct and primary value generated by digital infrastructure, is referred to as “the fifth utility,” along with water, gas, electricity and telecommunications. Data is created, aggregated, stored, transmitted, shared, traded and sold. Data requires data centers. Data centers require energy. The United States is home to approximately 40% of the world's data centers. The U.S. is set to lead the world in digital infrastructure advancement and has an opportunity to lead on energy for a very long time.

Data centers consume vast amounts of electricity due to their computational and cooling requirements. According to the United States Department of Energy, data centers consume “10 to 50 times the energy per floor space of a typical commercial office building.” Lawrence Berkeley National Laboratory issued a report in December 2024 stating that U.S. data center energy use reached 176 TWh by 2023, “representing 4.4% of total U.S. electricity consumption.” This percentage will increase significantly with near-term investment into high performance computing (HPC) and artificial intelligence (AI). The markets recognize the need for digital infrastructure build-out and, developers, engineers, investors and asset owners are responding at an incredible clip.

However, the energy demands required to meet this digital load growth pose significant challenges to the U.S. power grid. Reliability and cost-efficiency have been, and will continue to be, two non-negotiable priorities of the legal, regulatory and quasi-regulatory regime overlaying the U.S. power grid.

Maintaining and improving reliability requires physical solutions. The grid must be perfectly balanced, with neither too little nor too much electricity at any given time. Specifically, new-build, physical power generation and transmission (a topic worthy of another article) projects must be built. To be sure, innovative financial products such as virtual power purchase agreements (VPPAs), hedges, environmental attributes, and other offtake strategies have been, and will continue to be, critical to growing the U.S. renewable energy markets and facilitating the energy transition, but the U.S. electrical grid needs to generate and move significantly more electrons to support the digital infrastructure transformation.

But there is now a third permanent priority: sustainability. New power generation over the next decade will include a mix of solar (large and small scale, offsite and onsite), wind and natural gas resources, with existing nuclear power, hydro, biomass, and geothermal remaining important in their respective regions.

Solar, in particular, will grow as a percentage of U.S grid generation. The Solar Energy Industries Association (SEIA) reported that solar added 50 gigawatts of new capacity to the U.S. grid in 2024, “the largest single year of new capacity added to the grid by an energy technology in over two decades.” Solar is leading, as it can be flexibly sized and sited.

Under-utilized technology such as carbon capture, utilization and storage (CCUS) will become more prominent. Hydrogen may be a potential game-changer in the medium-to-long-term. Further, a nuclear power renaissance (conventional and small modular reactor (SMR) technologies) appears to be real, with recent commitments from some of the largest companies in the world, led by technology companies. Nuclear is poised to be a part of a “net-zero” future in the United States, also in the medium-to-long term.

The transition from fossil fuels to zero carbon renewable energy is well on its way – this is undeniable – and will continue, regardless of U.S. political and market cycles. Along with reliability and cost efficiency, sustainability has become a permanent third leg of the U.S. power grid stool.

Sustainability is now non-negotiable. Corporate renewable and low carbon energy procurement is strong. State renewable portfolio standards (RPS) and clean energy standards (CES) have established aggressive goals. Domestic manufacturing of the equipment deployed in the U.S. is growing meaningfully and in politically diverse regions of the country. Solar, wind and batteries are increasing less expensive. But, perhaps more importantly, the grid needs as much renewable and low carbon power generation as possible - not in lieu of gas generation, but as an increasingly growing pairing with gas and other technologies. This is not an “R” or “D” issue (as we say in Washington), and it's not an “either, or” issue, it's good business and a physical necessity.

As a result, solar, wind and battery storage deployment, in particular, will continue to accelerate in the U.S. These clean technologies will inevitably become more efficient as the buildout in the U.S. increases, investments continue and technology advances.

At some point in the future (it won’t be in the 2020s, it could be in the 2030s, but, more realistically, in the 2040s), the U.S. will have achieved the remarkable – a truly modern (if not entirely overhauled) grid dependent largely on a mix of zero and low carbon power generation and storage technology. And when this happens, it will have been due in large part to the clean technology deployment and advances over the next 10 to 15 years resulting from the current digital infrastructure boom.

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Hans Dyke and Gabbie Hindera are lawyers at Bracewell. Dyke's experience includes transactions in the electric power and oil and gas midstream space, as well as transactions involving energy intensive industries such as data storage. Hindera focuses on mergers and acquisitions, joint ventures, and public and private capital market offerings.