Houston just made a list that no one wants it to be on.
Data compiled by the National Public Utilities Council ranks Houston as the 15th most polluted city in the U.S. No other Texas city appears in the ranking. Three California cities — Bakersfield, Visalia, and Fresno — took the top three spots.
The ranking considers a city’s average volume of fine particulate matter in the air per year. Fine particulate matter (formally known as PM2.5) includes soot, soil dust, and sulphates.
The council based its ranking on the average annual concentration of PM2.5 as measured in micrograms per cubic meter of air, known as µg/m3. The ranking lists Houston’s average annual µg/m3 as 11.4. The World Health Organization (WHO) recommends a top µg/m3 of 5, while the American Lung Association sets 9 µg/m as an average annual guideline.
A report released in 2024 by Smart Survey found that the Houston area had just 38 days of good air quality the previous year.
“Most of Houston’s air pollution comes from industrial sources and diesel engines, although sources as diverse as school buses and meat cooking also contribute to … the problem,” the nonprofit Air Alliance Houston says.
The U.S. Environmental Protection Agency says PM2.5 poses “the greatest risk to health” of any particulate matter. Among other health issues, fine particulate matter contributes to cardiovascular disease, lung cancer, and chronic pulmonary disease.
Among the sources of PM2.5 are wildfires, wood-burning stoves, and coal-fired plants, according to the American Lung Association.
The WHO says air pollution causes 7 million deaths annually and may cost the global economy $18 trillion to 25 trillion by 2060. With 70 percent of the population expected to live in urban centers by mid-century, cities are at the forefront of efforts to reduce pollution, according to National Public Utilities Council.
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Local energy innovators recognized at annual Houston Innovation Awards
This week, the Houston innovation ecosystem celebrated big wins from the year, and members of the energy transition community were recognized alongside other innovators.
The Houston Innovation Awards honored over 40 finalists across categories, naming the 12 winners and honoring the two Trailblazer Legacy Awards at the event. The event, hosted at TMC Helix Park on November 14 named and celebrated the winners, which included four energy transition innovators.
Here's what energy leaders secured wins during the evening.
Corrolytics is a technology startup founded to solve microbiologically influenced corrosion problems for industrial assets. Co-founder and CEO Anwar Sadek says he's collected over $1 million in dilutive and non-dilutive funding from grants and other opportunities thanks to help from mentors. The company won both the Minority-Founded Business category and the People's Choice: Startup of the Year category.
"As a founder, I am always eager to assist and support fellow entrepreneurs, especially those navigating the unique challenges that come with being a BIPOC founder," he says. "With the guidance of mentors, I learned to master the complexities of the application process for grants and other funding opportunities. In turn, I actively share my experiences with other founders, helping them navigate similar paths."
Founded by CEO Cindy Taff, SageGeosystems is an energy company focused on developing and deploying advanced geothermal technologies to provide reliable power and sustainable energy storage solutions regardless of geography. The company secured the win in the Energy Transition Business category, alongside finalists Amperon, ARIX Technologies, Elementium Materials, InnoVent Renewables, and Tierra Climate.
"Sage Geosystems sets itself apart from competitors with its Geopressured Geothermal Systems, which can be deployed almost anywhere, unlike traditional geothermal technologies that require specific geographic conditions," Taff says. "This flexibility enables Sage to provide a reliable and virtually limitless power supply, making it ideal for energy-intensive applications like data centers."
A finalist in both the Investor of the Year and Ecosystem Builder categories, Juliana Garaizar is the founding partner of Energy Tech Nexus, invests with groups — such as Portfolia, Houston Angel Network, Business Angel Minority Association, and more — locally and beyond.
"I'm a hands on investor," she says. "I offer mentorship and industry and other investor connections. I take advisory roles and board observer seats."
This year, the Houston innovation community suffered the loss of two business leaders who left a significant impact on the ecosystem. Both individuals' careers were recognized with Trailblazer Legacy Awards.
One of the recipients was Scott Gale, executive director of Halliburton Labs, who received the award posthumously. He died on September 24. The award was decided on by the 2024 judges and InnovationMap. Gale was honored alongside Paul Frison, founder of the Houston Technology Center.
“I am immensely proud to honor these two remarkable individuals with the Trailblazer Award this year. It is fitting, as they represent two generations of building Houston’s ecosystem," 2023 Trailblazer Award recipient Brad Burke, managing director of the Rice Alliance and the associate vice president for industry and new ventures within Rice University's Office of Innovation, tells InnovationMap.
"Paul Frison was a pioneering leader who helped establish the Houston Technology Center and fostered the city’s tech ecosystem during the initial technology boom around the year 2000. Scott Gale, through his work at Halliburton Labs over the past five years, has been instrumental in launching Houston’s energy transition ecosystem," he continues. "Both have played pivotal roles in championing technology innovators.”
In honor of his son, Andrew Gale accepted the award with his daughter-in-law, Nicole, during the event.
Trending news: $450M fund closes, virtual power plant planned for Texas, and more in Houston energy
Editor's note: From NRG's new virtual power plant plans to Pelican Energy Partners' $450 million fund announcement, these are the top headlines that resonated with EnergyCapital readers on social media and daily newsletter this week.
NRG Energy partners to launch Texas' largest AI-powered virtual power plant
NRG and Renew Home expect the virtual power plant program to arrive for Texas customers in spring of 2025. Photo via Getty Images
NRG Energy is partnering with a virtual power plant company to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 in an overall effort to improve the Texas grid's resiliency and help households manage and lower their energy costs.
Renew Home will create a nearly 1 gigawatt AI-powered VPP, which will be enabled by Google Cloud technology and be the largest AI-enabled VPP in Texas. NRG and Renew Home expect the VPP program to arrive for Texas customers in spring of 2025. Continue reading.
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.
Houston-area solar farm to light up Texas with clean power for 15,000 homes
Recurrent Energy's Liberty Solar project near Houston is now operational, adding 134 megawatts of clean energy capacity to power 15,000 homes annually in the MISO market. Photo via recurrentenergy.com
A clean energy developer and operator of solar and energy storage assets has announced the completion and commercial operation of a Houston-area farm that will power 15,000 homes a year.
Recurrent Energy's Liberty Solar project outside of Houston has powered on and will expand solar energy capacity in the Midcontinent Independent System Operator market. Recurrent Energy is an Austin-based a subsidiary of Canadian Solar.
“Projects like Liberty Solar are instrumental to meeting the soaring demand for electricity in Texas,” Executive Director of Texas Solar Power Association Mark Stover says in a news release. "We commend Recurrent Energy for pushing through the development process and working with corporate buyers to deliver new, predictable, clean power to the MISO region of Texas.” Continue reading.
Unlocking climate tech’s potential in Houston: What health innovation's rise can teach us
If we can channel the same sense of urgency and public commitment toward climate change as we did for health crises in the past, climate tech could overcome its current obstacles. Photo via Getty Images
Over the past several decades, climate tech has faced numerous challenges, ranging from inconsistent public support to a lack of funding from cautious investors. While grassroots organizations and climate innovators have made notable efforts to address urgent environmental issues, we have yet to see large-scale, lasting impact.
A common tendency is to compare climate tech to the rapid advancements made in digital and software technology, but perhaps a more appropriate parallel is the health tech sector, which encountered many of the same struggles in its early days.
Observing the rise of health tech and the economic and political support it received, we can uncover strategies that could stabilize and propel climate tech forward. Continue reading.
Podcast: How this Houston energy tech startup transforms innovation into scalable success
Through Dsider’s techno-economic analysis platform, Sujatha Kumar is helping startups bridge the critical gap between vision and execution, ensuring they can navigate complex markets with confidence. Photo via LinkedIn
What if the future of clean energy wasn’t just about invention, but execution? For Sujatha Kumar, CEO of Dsider, success in clean tech hinges on more than groundbreaking technology—it’s about empowering founders with the tools to make their innovations viable, scalable, and economically sound.
Through Dsider’s techno-economic analysis (TEA) platform, Kumar is helping startups bridge the critical gap between vision and execution, ensuring they can navigate complex markets with confidence.
In a recent episode of the Energy Tech Startups Podcast, Kumar shared her insights on the growing importance of TEA in the hard tech space. While clean energy innovation promises transformative solutions, the challenge lies in proving both technical feasibility and economic sustainability. Kumar argues that many early-stage founders, especially in fields like carbon capture, microgrids, and renewable energy, lack the necessary financial tools to assess market fit and long-term profitability—a gap Dsider aims to fill. Continue reading.