Naomi Halas has pioneered insights into how light and matter interact at small scales and co-founded Houston-based Syzygy Plasmonics. Photo by Jeff Fitlow/Rice University

Rice University professor and nanoscience pioneer Naomi Halas has received the 2025 Benjamin Franklin Medal in Chemistry.

In addition to her role at Rice, Halas is co-founder and technical advisor of Syzygy Plasmonics, a Houston startup that relies on light instead of combustion as an energy source. This enables efficient, sustainable transformation of low-carbon ammonia into hydrogen when powered by renewable electricity.

Halas earned the Franklin Medal “for the creation and development of nanoshells — metal-coated nanoscale particles that can capture light energy — for use in many biomedical and chemical applications,” according to a release from Rice.

Halas’ work has pioneered insights into how light and matter interact at small scales, according to Rice. She joined Rice in 1989 to support the late Richard Smalley’s advancements in nanoscale science and technology.

“A lot of people were talking about nano like it was something completely new,” Halas said in the release. “But I realized it was really just chemistry viewed in a different way, and that really got me thinking about how I can combine the worlds of laser science and nanoscience.”

That shift in perspective led to the development of nanoparticles that spawned innovations in fields such as cancer therapy, water purification, and renewable energy.

“Naomi’s contributions to nanoscience have not only expanded the boundaries of our understanding but also transformed real-world applications in medicine, energy and beyond,” Rice President Reginald DesRoches added. “Her pioneering work on nanoshells exemplifies the spirit of innovation that defines Rice.”

One of Halas’ projects led to the founding of Syzygy, which develops light-driven, all-electric chemical reactors for inexpensive, sustainable production of hydrogen fuel. The company was named to was named to Fast Company's energy innovation list last year.

Halas is the first Rice faculty member to be elected to both the National Academy of Sciences and the National Academy of Engineering for research carried out at the university. She also has been elected to the National Academy of Inventors, the American Academy of Arts and Sciences, and the Royal Danish Academy of Science and Letters. Halas holds 30 patents in the fields of medicine, chemistry, physics and engineering.

The Franklin Medal is awarded by the Franklin Institute of Philadelphia. Many scientists who have received the award have gone on to win Nobel prizes.

As a recipient of the Franklin honor, Halas will receive a $10,000 honorarium and a 14-karat gold medal during an award ceremony May 1 in Philadelphia.

Fast Company magazine just placed Fervo Energy and Syzygy Plasmonics on its energy innovation list. Photo via Getty Images

2 Houston cleantech companies rank on most innovative energy companies lists

getting recognized

A pair of Houston energy startups have been named among the 10 most innovative energy companies for 2024.

Fast Company magazine just placed Fervo Energy and Syzygy Plasmonics on its energy innovation list. In all, 606 companies and organizations across a variety of industries were recognized for “reshaping industries and culture.”

Fervo produces carbon-free geothermal energy. Its existing geothermal project is in Nevada, and it’s building a geothermal project in Utah. The company recently raised $244 million.

“Solar and wind are cheap, but they don’t provide the kind of always-on dispatchable electricity that hydropower, hydrogen, and nuclear do; even at current high prices, enhanced geothermal is still cheaper than those other sources,” Fast Company notes.

The Fast Company accolade comes shortly after Time and Statista named Fervo one of the top greentech companies for 2024.

By relying on light rather than combustion to generate chemical reactions, Syzygy is taking on the use of fossil fuels in the chemical industry, Fast Company points out. Fossil fuels account for about 18 percent of the world’s industrial CO2 emissions.

Fast Company outlines some of Syzygy’s accomplishments in 2023:

  • Gained an undisclosed amount of funding from Mitsubishi Heavy Industries.
  • Completed its Pearland manufacturing facility.
  • Wrapped up 1,000 cumulative hours of testing on its ammonia-splitting reactor cell, capable of producing 200 kilograms of hydrogen per day.

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This article originally ran on InnovationMap.

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Houston cleantech accelerator names 12 startups to 2025 cohort

early-stage accelerator

The Rice Alliance Clean Energy Accelerator has named 12 early-stage startups to its latest cohort.

The hybrid program, which operates in a hybrid capacity based out of the Ion, runs for 10 weeks and provides energy transition startups with training focused on fundraising, pilots, partnerships and sale. It begins July 8 and will be led by executive director Kerri Smith and program director Matthew Peña with support from executives-in-residence Lynn Frostman, John Jeffers, David Horsup and Dev Motiram.

The accelerator will culminate with a demo day on Sept. 18 at the Rice Alliance Energy Tech Venture Forum during the Houston Energy and Climate Startup Week.

Members of this year's cohort come from the Houston area as well as across the U.S. and Canada.

Class 5 for the Rice Alliance Clean Energy Accelerator includes:

  • Aqua-Cell Energy, which builds industrial-scale overnight batteries to provide affordable solar power
  • Arculus, a company that provides multilayer internal coating for pipelines that lowers friction, extends pipeline life and enables carbon dioxide transport and hydrogen blending
  • AtmoSpark, a Houston-based sustainable cooling and freshwater company that provides an electric field-driven air separation system that reduces dehumidification energy costs for data centers and industrial facilities
  • AtoMe, which delivers durable metallic composites to energy and aerospace companies using an eco-friendly dry blade method that eliminates harmful chemicals
  • ConceptLoop, a company that converts plastic waste into eco-friendly, low-carbon aggregate
  • Fathom Storage, which provides a more solidly embedded and steel-efficient anchoring solution for offshore service providers, wind energy developers and research institutes
  • GeoKiln, a Houston-based company that addresses issues of subsurface hydrogen extraction by applying proven oil and gas techniques to accelerate natural hydrogen reactions, enabling hydrogen production
  • Innowind Energy Solutions, a company that provides nonintrusive, active flow control devices to boost energy production and extend turbine lifespan
  • Lukera Energy, which transforms waste methane into high-value methanol using a breakthrough nanobubble technology
  • Metal Light Inc., which has developed a scalable, cost-effective Metal-Air generator to replace diesel generators
  • Moonshot Hydrogen, a company that converts food and agricultural waste into clean hydrogen and bioethanol
  • Resollant, a Woodlands-based company that delivers compact, zero-emission hydrogen and carbon reactors to refineries, petrochemical plants, steel and cement manufacturers and fuel producers

The Rice Alliance Clean Energy Accelerator has supported 55 ventures since it was founded in 2021, collectively raising over $250 million in funding, according to the university. See last year's cohort here.

Texas falls lower on national ranking of greenest states for 2025

room to improve

Texas dropped in the rankings on WalletHub's Greenest States 2025 report.

The report, released last month, considered 28 relevant metrics—from air and water quality to the number of alternative fuel stations and green buildings per capita—to call out states doing the best (and worst) jobs of caring for the environment.

Texas came in at No. 42 out of 50, with a total score of 42.54 out of 100. Last year, the Lone Star State ranked No. 38 with a score of 50.40 based on 25 metrics.

Texas' poor ranking was driven by its last-placed ranking, coming in at No. 50, for overall environmental quality. It was tied for No. 45 for air quality and ranked No. 46 for water quality, which helped comprise the overall environmental quality score.

Other metrics fell closer toward the middle of the pack. The state ranked No. 32 for eco-friendly behaviors and No. 39 for climate-change contributions.

California also fell on the annual report. While the state claimed the top spot in 2024, it came in at No. 7 this year. Vermont, which came in second in 2024, was named the greenest state in 2025.

Hawaii, which didn't crack the top five last year, was ranked No. 2 on the 2025 report. New York, Maryland and Maine rounded out the top five this year.

West Virginia was the country's least green state again this year, followed by Louisiana, Kentucky, Alabama and Mississippi.

The report also showed that Democrat-led states ranked around No. 12 on average, whereas Republican states fell at around No. 33.

While the WalletHub report seems bleak for Texas, others have shown more positive signs for the state. Texas was ranked slightly above average in a recent ranking of the best states for sustainable development. A recently released U.S. Energy Storage Monitor shows that Texas led all states and surpassed California in the fourth quarter of 2024 by installing 1.2 gigawatts of utility-scale energy storage for solar and wind power.

Still, WalletHub also recently ranked Houston No. 98 out of 100 of the largest cities on its Greenest Cities in America report. Read more here.

Source: WalletHub

Houston renewables developer and Google agree to second solar collaboration

power purchase

EnergyRe, a developer of large-scale renewable energy projects with headquarters in Houston and New York, has signed a renewable energy agreement that will allow Google to invest in and purchase renewable energy credits (RECs) from its projects under development in South Carolina.

Google will be able to pull from energyRe’s portfolio of more than 600 megawatts of new solar and solar storage projects in the state.

The agreement marks the second partnership between the companies. Last year, energyRe and Google signed a 12-year power purchase agreement in which Google would purchase renewable energy from a 435-megawatt solar project. EnergyRe would supply electricity and RECs generated from the solar project to Google to power the equivalent of more than 56,000 homes.

"Strengthening the grid by deploying more reliable and clean energy is crucial for supporting the digital infrastructure that businesses and individuals depend on," Amanda Peterson Corio, head of data center energy at Google, said in a news release. "Our collaboration with energyRe will help power our data centers and the broader economic growth of South Carolina."

EnergyRe's work includes developing high-voltage transmission, onshore and offshore wind, large-scale solar, distributed generation and storage assets in markets around the United States. Its national onshore utility-scale portfolio includes 1,520 megawatts of contracted solar assets and 398 megawatt-hours of contracted battery storage assets.

"This agreement is a milestone in energyRe's mission to develop innovative and impactful clean energy solutions for the future," Miguel Prado, CEO of energyRe, added in the news release."We're honored to partner with Google to help advance their ambitious sustainability and decarbonization objectives while delivering dependable, locally sourced clean energy to meet growing energy demands."

Google aims to achieve net-zero carbon emissions across its operations and value chain by 2030.