Houston receives abysmal ranking on list of greenest cities in the US

room for improvement

Yikes, Houston is very far from being considered among the greenest cities in the country. Photo via Getty Images

Bad news, Houston. The Bayou City is the third worst metro when it comes to the country's greenest cities.

According to WalletHub's recently released Greenest Cities in America report, Houston is No. 98 out of 100 of the largest cities that were ranked in the study, which was based on information from the U.S. Census Bureau, U.S. Environmental Protection Agency, The Trust for Public Land, U.S. Department of Energy - The Alternative Fuels Data Center, and more.

“There are plenty of things that individuals can do to adopt a green lifestyle, from recycling to sharing rides to installing solar panels on their homes. However, living in one of the greenest cities can make it even easier to care for the environment, due to sustainable laws and policies, access to locally-grown produce and infrastructure that allows residents to use vehicles less often," says Chip Lupo, WalletHub Analyst. "The greenest cities also are better for your health due to superior air and water quality.”

Houston scored 36.88 points out of 100, and comes in dead last on the environment ranking. Here's how the city performs when it comes to the other metrics:

No. 87 for transportation
No. 52 for energy sources
No. 61 for lifestyle and policy
No. 91 for greenhouse-gas emissions per capita
No. 30 for percent of green space
No. 86 for median air quality index
No. 97 for annual excess fuel consumption
No. 56 for percent of commuters who drive
No. 39 for walk score
No. 33 for farmers markets per capita

The big winners on the report are mostly on the West Coast. Of the top 10, six cities are from California. These are the greenest cities, per the report:

San Diego, California
Washington, D.C.
Honolulu, Hawaii
San Francisco, California
San Jose, California
Seattle, Washington
Oakland, California
Portland, Oregon
Fremont, California
Irvine, California

Texas isn't seen on the list until Austin, which ranked No. 26. The rest of the major Lone Star State major metros include San Antonio at No. 44, Fort Worth at No. 76, and Dallas at No. 81.

While this report is pretty damning, there's not a general consensus that all hope is lost for Houston when it comes to being green. Last year, the city was ranked as having the lowest carbon footprint, based on a report from Park Sleep Fly.

However, WalletHub's report has pretty consistently ranked Houston low on the list. Last year, Houston was slightly higher up at No. 95. In 2022 and 2021, the city claimed the No. 93 spot.

From Your Site Articles

Houston ranks as the 15th most polluted city in the U.S. No other Texas city appears in the ranking. Photo via Getty Images

Houston lands on the wrong end of national pollution report

big yikes

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.

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.

———

This article originally ran on InnovationMap.

Fervo Energy — and a few other Greentown Labs companies — made a global list of clean tech companies. Photo via fervoenergy.com

New global report names top cleantech startups to keep an eye on

seeing green

Nine Greentown Labs members were recognized on a global list honoring cleantech companies.

Houston-based Fervo Energy was named to Cleantech Group’s Global Cleantech 100 report. Cleantech Group is a research-driven company that aids the public sector, private sector, investors, and also identifies, assesses, and engages with the innovative solutions around climate challenges.

Fervo, a geothermal energy company that specializes in a renewable energy technology that uses hot water to produce electricity, debuted in 2022 on the list, and was honored in the “Energy & Power” category for the second straight year.

The other Greentown Labs, which is dual located in Houston and Somerville, Massachusetts, companies recognized on the list include:

Amogy, a New York-based novel carbon-free energy system using ammonia as a renewable fuel
Carbon Upcycling Technologies, a Canadian waste and carbon utilization company
Dandelion Energy, New York-based company offering ground source heat pumps for most homes
Energy Dome, a Milan-based company addressing the problem of long-duration energy storage
e-Zinc, a Canadian company with a breakthrough electrochemical technology for energy storage
Nth Cycle, a Massachusetts company with sustainable metal refining
Raptor Maps, a Massachusetts company with a software platform for solar assets' performance data management
Sublime Systems, a Massachusetts companydeveloping a breakthrough process for low-carbon cement
WeaveGrid, a California company working with utilities, automakers, EVSEs, and EV owners to enable and accelerate the electrification of transportation

The number of nominations from the public, a panel, i3, awards and Cleantech Group totaled 25,435 from over 65 countries, which is a 61% increase from the 2023 nomination process. Winners were chosen from a short list of 330 companies by a panel of over 80 industry experts.

While not on the list, Beaumont-based Fortress Energy was mentioned for its electrolyzer supply agreement with Cleantech Group 100 winner Electric Hydrogen.

The Cleantech Group 100 was started 15 years ago.

“In 15 more years, we will be at 2039—by which time, a mere decade out from the ‘net-zero’ target of 2050,” Cleantech Group CEO Richard Youngman says in the report. “I would expect the composition of our annual list to have markedly changed again, and the leading upcoming private companies of that time to reflect such.”

Chevron — as well as nine other Houston energy companies — was named a top company by Newsweek. Photo via chevron.com

10 Houston energy companies recognized as best workplaces on annual list

best of class

Newsweek recently recognized the country's top workplaces, and 10 Houston energy businesses made the cut.

The annual America's Greatest Workplaces 2023 list, which originally published in the fall, gave 10 Houston energy companies four stars or above.

ConocoPhillips is the only Houston-based energy company to receive five out of five stars. Baker Hughes, Exxon, S&B Engineers and Constructors, and KBR all received four-and-a-half stars. Chevron Corp., Halliburton, J-W Power Co., Q'MAX Solutions, and Valerus secured four stars each.

"Our commitment to engaging the full potential of our people to deliver the future of energy is at the core of everything we do," Rhonda Morris, vice president and chief human resources officer at Chevron, says in a news release. "We do this because our business succeeds best when our employees feel engaged and empowered, and we look forward to building on this momentum for years to come.”

The ranking identified the top 1,000 companies in the United States and is based off of a large employer survey, as well as a a sample set of over 61,000 respondents living and working in the U.S. In total, Newsweek factored in 389,000 company reviews across all industry sectors. The report was in partnership with Plant-A.

"In an economic climate where the job market remains competitive despite fears of a recession, employers who stand out as America's Greatest Workplaces may find they have substantial advantages over their competitors," writes Nancy Cooper, editor of Newsweek, about the report.

While no Houston business was able to break into the top 100, four did make the cut for this prestigious list. Photo via Getty Images

Annual report ranks 2 Houston energy tech companies on list of fasting growing businesses

by the numbers

Four Houston businesses made the cut on Deloitte's recently unveiled list of the fastest-growing technology companies in North America — and two are energy tech companies.

For the 29th year, 2023 Technology Fast 500 ranked top tech, media, telecommunications, life sciences, and energy technology companies based on fiscal year revenue growth from 2019 to 2022. While no Houston business was able to break into the top 100, four did make the cut for this year's list.

“It is great to see Houston represented alongside established technology hubs on this year’s Fast 500 list,” Amy Chronis, vice chair, US Energy and Chemicals Leader and Houston managing partner at Deloitte, says in a statement. “Houston is planting seeds for future innovation, and the companies named to this year’s list confirm our city’s value proposition as an innovative community. We look forward to this growth continuing in the future and extend our congratulations to this year’s Houston winners.”

Houston's two energy representatives are NatGasHub.com, a pipeline data source, at No. 356 with 364 percent growth and P97 Networks, a fintech company for gas stations, at No. 506 with 225 percent growth.

The other two Houston businesses are digital media company Direct Digital Holdings at No. 108 with 1,325 percent growth and B2B software solutions business Liongard at No. 208 with 680 percent growth

Thirty Texas companies made the list of the 541 ranked, making it the fourth most concentrated hub on the list behind the Bay Area, Tri-State Area, and New England. The companies on the list reported a revenue growth ranging from 201 percent to 222,189 percent over the three-year time frame from 2019 to 2022. The average growth rate was 1,934 percent and a median growth rate of 497 percent.

“Each year, we look forward to reviewing the progress and innovations of our Technology Fast 500 winners," Paul Silverglate, vice chair, Deloitte LLP and U.S. technology sector leader, says in the release. "This year is especially celebratory as we expand the number of winners to better represent just how many companies are developing new ideas to progress our society and the world, especially during a slow economy. While software and services and life sciences continue to dominate the top 10, we are encouraged to see other categories making their mark."

Software dominated the industry breakdown with 57 percent of the companies working in that field. However, the top company for 2023 was Vir Biotechnology Inc., a life science company that developed a COVID-19 treatment. Vir was also the top company in 2022.

Last year, only one Houston company made the list. At No. 372 Onit reported a revenue increase of 369 percent. The company also made the 2021 list, along with Graylog and Enercross.

Ad Placement 300x100

Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

9 must-attend Houston energy events for March 2025

WHERE TO BE

Editor's note: March is a busy month for energy industry professionals in Houston, with a full calendar of meetups, summits, and, of course, CERAWeek. Below, we've rounded up the energy transition events you won't want to miss this month. Mark your calendars and register accordingly.

March 3-4 — Industrial Immersive

The Industrial Immersive community connects industrial, energy, engineering tech professionals making investment, strategy and tactical decisions, or building, scaling, and executing pioneering XR/ 3D/ simulations, digital twin, reality capture, edge/ spatial computing, AI/ ML, connected workforce & IIoT projects within their enterprise. This forum will bring together industry professionals to share first-hand experience, insight and advice for implementing and scaling immersive tech programs in enterprise operations.

This event begins Monday, March 3, at Westin Memorial City. Click here to register.

March 3-5 — Global Energy Meet 2025

The aim of this conference is to bring together all the key stakeholders interested in Fossil and Renewable Energy Sources to share and discuss advances and developments in these fields. It is a three-day event which features energy experts, academicians, business executives and engineers to showcase recent trends, strategies and challenges of energy systems. It creates a platform to focus on advancing new energy paradigms for energy systems and global energy issues.

This event begins Monday, March 3, at the Doubletree by Hilton. Click here to register.

March 4 — Low Carbon Investment Summit

The Low Carbon Investment Summit 2025, hosted by Flathead Forge, Energy Tech Nexus, and MetroNational, connects investors with breakthrough decarbonization technologies.The event will showcase innovative companies in decarbonization including water treatment, critical minerals, and energy transition sectors while connecting innovative companies with corporate VCs, family offices, and HNW investors. Space is limited.

This event begins Tuesday, March 4, at 11 am at MetroNational's Innovation District. Click here to register.

March 4-6 — THRIVE Energy Conference

The Thrive Energy Conference by Daniel Energy Partners is for key energy professionals collaborating on research-driven insights and trends key to developing a pathway to a “thriving” energy future. This unique event combines leadership from public and private global energy companies as well as investors under a professional yet fun atmosphere.

This event begins Tuesday, March 4, at Minute Maid Park. Click here to register.

March 10-14 — CERAWeek 2025

The foremost annual gathering in the energy sector returns to Houston March 10-14, 2025. Themed "Moving Ahead: Energy strategies for a complex world," CERAWeek 2025 will focus on the challenges ahead for energy security, supply, and climate ambitions. More than 10,000 participants from over 2,050 companies across 80 countries will convene in Houston for this ambitious event. CERAWeek comprises three platforms: the Executive Conference, the Innovation Agora, and Partner Programs. We'll dive into comprehensive CERAWeek recommendations in future articles.

This event begins Monday, March 10. Click here to register.

March 13: Energy Tech Market

Energy Tech Market features founders and industry experts sharing cutting-edge innovations, trends, and insights in energy technology. Organized by Energy Tech Nexus in collaboration with the Scale Up Hub Houston program and TechNL, this event brings together thought leaders and innovators to explore the latest developments across various sectors of the energy industry.

This event begins Thursday, March 13, at 10 am at GreenStreet. Click here to register.

March 18-20 — The Connected Worker: Energy Summit

The Connected Worker: Energy Summit provides the opportunity for you to get hands-on with the essential solutions you need to empower your frontline workforce, hear real-word case studies from energy and utility leaders, and network with your industry peers. Learn how to: create a safer work environment, boost compliance and improve efficiencies through automation, make your data mobile and reduce rework, downtime and time to decision; improve workforce mobility and maximize the use of data to continuously enhance process and asset performance; and much more.

This event begins Tuesday, March 18, at 8:45 am at The Westin Galleria. Click here to register.

March 26 — Bots And Brews Spring 2025

Bots & Brews is the H-town robotics, drones, geospatial, data & AI meetup, hosted by the Energy Drone & Robotics Coalition and the co-hosts: Industrial Digital Twin Forum, Industrial Reality Capture Forum & Industrial AI Nexus: Automate. Everyone in the energy and industrial robotics/drone/data & AI community are invited to come together to catch up and talk about real-world solutions and deployments.

This event is Wednesday, March 26, from 5 to 7:45 pm at The Cannon West. Click here to register.

March 31-April 2 — World Hydrogen North America 2025

The U.S. Department of Energy announced the Hydrogen Energy Earthshot initiative to reduce the cost of clean hydrogen by 80% within a decade. Canada has also released its Hydrogen Strategy, which aims to make the country a global leader in hydrogen production, use, and exports. Seize the opportunity to connect with industry leaders from across the hydrogen value chain, fostering long-term business partnerships and exploring potential collaborations. Engage with prominent off-takers, both nationally and internationally, and gain first-hand insights into the latest projects shaping the future of hydrogen in the USA and Canada.

This event begins Monday, March 31, at the Marriott Marquis. Click here to register.

50+ teams announced for CERAWeek's annual clean tech pitch competition

CERA pitches

The Rice Alliance for Technology and Entrepreneurship, the Houston Energy Transition Initiative and the Texas Entrepreneurship Exchange for Energy announced the 30-plus energy ventures and five student teams that will pitch at the 2025 Energy Venture Day and Pitch Competition during CERAWeek next month.

The ventures are focused on driving efficiency and advancements toward the energy transition and will each present a 3.5-minute pitch before a network of investors and industry partners during CERAWeek's Agora program.

The pitch competition is divided up into the TEX-E university track, in which Texas student-led energy startups compete for $50,000 in cash prizes, and the industry ventures track.

Teams competing in the TEX-E Prize track include:

ECHO
HEXAspec
HydroStor Analytics
Nanoborne
Pattern Materials

The industry track is subdivided into three additional tracks, spanning materials to clean energy and will feature 36 companies. The top three companies from each industry track will be named. The winner of the CERAWeek competition will also have the chance to advance and compete for the $1 million investment prize at the Startup World Cup in October 2025.

Teams come from around the world, including several notable Houston-based ventures, such as Corrolytics, Rheom Materials, AtmoSpark Technologies, and others. Click here to see the full list of companies and investor groups that will participate.

The pitch competition will be held Wednesday, March 12, at CERAWeek from 1-4:30 pm. An Agora pass is required to attend.

Those without passes can catch more than 50 companies at a free pitch preview at the Ion. Pitches will be followed by private meetings with venture capitalists, corporate innovation groups, industry leaders, and tech scouts. The preview will be held Tuesday, March 11, from 9:30 am to 2:30 pm at the Ion. It's free to attend, but registration is required. Click here to register.

Last year, Houston-based Solidec took home the top TEX-E price and $25,000 cash awards. The startup extracts molecules from water and air, then transforms them into pure chemicals and fuels that are free of carbon emissions. Its co-founder and Rice University professor Haotian Wang was recently awarded the 2025 Norman Hackerman Award in Chemical Research.

Texas grid report and more Houston energy transition news to know

Trending news

Editor's note: It's time to look back on the top energy transition news for the second half of February. The five most-read EnergyCapital stories feature a prestigious prize for a Rice professor, an Austin startup powering up in Houston, solar news, and more. Get the details below.

1. Houston clean energy pioneer earns prestigious Welch Foundation award

Rice professor and Solidec co-founder Haotian Wang's research enables CO2 to be converted into valuable chemicals and fuels. Photo courtesy Welch Foundation.

A Rice University professor has earned a prestigious award from the Houston-based Welch Foundation, which supports chemistry research.

The foundation gave its 2025 Norman Hackerman Award in Chemical Research to Haotian Wang for his “exceptionally creative” research involving carbon dioxide electrochemistry. His research enables CO2 to be converted into valuable chemicals and fuels.

The award included $100,000 and a bronze sculpture. Continue reading.

2. Austin energy startup expands to Houston, offering electricity with backup batteries

Justin Lopas and Zach Dell founded Base Power in 2023 and are now expanding the company's electricity and backup battery offerings to Houston. Photo courtesy Base Power.

An Austin startup that sells electricity and couples it with backup power has entered the Houston market.

Base Power, which claims to be the first and only electricity provider to offer a backup battery, now serves the Houston-area territory served by Houston-based CenterPoint Energy. No solar equipment is required for Base Power’s backup batteries.

The company is initially serving customers in the Cy-Fair, Spring, Cinco Ranch and Mission Bend communities, and will expand to other Houston-area places in the future. Continue reading.

3. Solar farms are booming and putting thousands of hungry sheep to work

A photo of BP's new solar farm in Texas. Photo via bp.com

On rural Texas farmland, beneath hundreds of rows of solar panels, a troop of stocky sheep rummage through pasture, casually bumping into one another as they remain committed to a single task: chewing grass.

The booming solar industry has found an unlikely mascot in sheep as large-scale solar farms crop up across the U.S. and in the plain fields of Texas. In Milam County, outside Austin, SB Energy operates the fifth-largest solar project in the country, capable of generating 900 megawatts of power across 4,000 acres.

How do they manage all that grass? With the help of about 3,000 sheep, which are better suited than lawnmowers to fit between small crevices and chew away rain or shine.

The proliferation of sheep on solar farms is part of a broader trend — solar grazing — that has exploded alongside the solar industry.Continue reading.

4. Houston venture firm invests in Virginia fusion power plant company in collaboration with TAMU

NearStar Fusion team Andrew Case, Chris Faranetta, Douglas Witherspoon, Amit Singh and Marco Luna. Photo courtesy NearStar Fusion.

Houston-based climate tech venture firm Ecosphere Ventures has partnered with Virginia Venture Partners and Virginia Innovation Partnership Corporation’s venture capital program to invest in Virginia-based NearStar Fusion Inc., which develops fusion energy power plants.

NearStar aims to use its proprietary plasma railgun technology to safely and affordably power baseload electricity on and off the power grid through a Magnetized Target Impact Fusion (MTIF) approach, according to a news release from the company.

NearStar’s power plants are designed to retrofit traditional fossil fuel power plants and are expected to serve heavy industry, data centers and military installations. Continue reading.

5. Report: Texas solar power, battery storage helped stabilize grid in summer 2024, but challenges remain

Solar power met nearly 25 percent of midday electricity demand within the ERCOT grid during some of 2024's hottest summer days. Photo by Red Zeppelin/Pexels

Research from the Federal Reserve Bank of Dallas shows that solar power and battery storage capacity helped stabilize Texas’ electric grid last summer.

Between June 1 and Aug. 31, solar power met nearly 25 percent of midday electricity demand within the Electric Reliability Council of Texas (ERCOT) power grid. Rising solar and battery output in ERCOT assisted Texans during a summer of triple-digit heat and record load demands, but the report fears that the state’s power load will be “pushed to its limits” soon.

The report examined how the grid performed during more demanding hours. At peak times, between 11 a.m. and 2 p.m. in the summer of 2024, solar output averaged nearly 17,000 megawatts compared with 12,000 megawatts during those hours in the previous year. Between 6 p.m. and 9 p.m., discharge from battery facilities averaged 714 megawatts in 2024 after averaging 238 megawatts for those hours in 2023. Solar and battery output have continued to grow since then, according to the report. Continue reading.

View All Listings

ENERGYCAPITALHTX EMAILS ARE AWESOME