Houston’s journey towards a clean energy future is a testament to the power of innovation and adaptability. Photo via Getty Images

Houston, often dubbed the “Energy Capital of the World,” is at a pivotal moment in its history. Known for its vast oil and gas reserves, the city is now embracing a new role as a leader in the clean energy transition. This shift is not just about adopting new technologies but also about creatively repurposing existing infrastructure to support sustainable energy solutions.

Houston’s offshore oil wells, many of which are old or abandoned, present a significant opportunity for carbon capture. By repurposing these wells, we can sequester carbon dioxide, reducing greenhouse gas emissions and mitigating climate change. This approach not only utilizes existing infrastructure but also provides a cost-effective solution for carbon management. According to the Greater Houston Partnership, initiatives like these are crucial as Houston aims to lower its climate-changing greenhouse gas emissions. Exxon estimates that just their proposed CCS hub could capture and store 50 million metric tons of CO2 annually by 2030 and 100 million metric tons by 2040.

The proximity of abandoned offshore platforms to the coast makes them ideal candidates for renewable energy substations. These platforms can be transformed into hubs for wind, solar or tidal energy, facilitating the integration of renewable energy into the grid. This repurposing not only maximizes the use of existing structures but also minimizes environmental disruption.

Decommissioned pipelines, which are already in place, offer a ready-made solution for routing renewable energy cables. By using these existing rights of way, Houston can avoid disturbing additional seafloor and reduce the environmental impact of new cable installations. This strategy ensures a smoother transition to renewable energy infrastructure. The U.S. Energy Information Administration notes that Texas, including Houston, leads the nation in wind-generated electricity, highlighting the potential for further renewable energy development.

Onshore oil and gas facilities in Houston also hold potential for clean energy repurposing. Wells that were drilled but never used for oil or gas can be adapted for geological thermal energy storage. This process involves storing excess renewable energy in the form of heat, which can be retrieved when needed, providing a reliable and sustainable energy source. This innovative use of existing wells aligns with Houston’s broader energy transition strategy, which aims to leverage the city’s industrial expertise for a low-carbon future.

Once the land has been remediated, old and abandoned oil fields can be converted into solar farms. This transformation not only provides a new use for previously contaminated land but also contributes to the generation of clean, renewable energy. Solar farms on these sites can help meet Houston’s energy needs while supporting environmental restoration. The Environmental Protection Agency in recent years recognized Houston as the top city in the U.S. for green energy usage, with annual green power usage topping 1 billion kilowatt-hours in 2021.

Houston’s journey towards a clean energy future is a testament to the power of innovation and adaptability. By repurposing existing infrastructure, we can create a sustainable energy landscape that honors the city’s industrial past while paving the way for a greener tomorrow. These strategies highlight the potential for Houston to lead in the clean energy transition, setting an example for cities worldwide.

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Tershara Mathews is the national offshore wind lead at WSP.

This article originally ran on EnergyCapital.


In light of the recent winter storm that caused an energy outage across Texas, let's use this Earth Day to make changes toward renewable energy. Photo via Getty Images

Texas expert: Energy reliability and climate sustainability are not mutually exclusive

Guest Column

It's no secret that Texas has long been a leader in energy production, but it may surprise you to learn that Texas leads the nation in wind-powered generation, producing 28 percent of all US wind-powered electricity in 2019.

We're not just producing a lot of renewable energy, we're increasingly consuming it.

Contrary to the caricaturistic portrayal of Texans in mainstream culture, a recent study by the University of Houston revealed that 4 out of 5 Texans believe the climate crisis is real.

In an effort to reduce their carbon footprint, more and more households are making the decision to switch to 100 percent renewable energy. And this adoption isn't isolated to core urban areas. We're witnessing a diverse spread in smaller, more rural markets.

These reasons and more are why Bulb, one of Europe's fastest growing company that provides 100 percent renewable energy, chose Texas as its first home in the U.S. Less than a year after launching here, it's safe to say we made the right choice as we're experiencing even faster growth in Texas than we did in our early stages in the United Kingdom.

One of the many reasons Texans have rapidly adopted our simpler, cheaper and greener energy is because they no longer have to choose between being budget and climate conscious. Sadly, the progress the state has made could be knocked back following the recent winter storm.

After the nation witnessed Texas' massive outages during the winter storm, our state leaders understandably feel the pressure to "do something," quickly.

We share our leaders' determination in avoiding another crisis of this magnitude, but we fear that Texas may be heading in the wrong direction. In the mad rush to avoid another catastrophe, some regulators and politicians wrongly and disproportionately blamed renewable energy sources for the outages.

Numerous media outlets and energy experts have overwhelmingly refuted these claims. An AP fact check described the efforts to blame renewable energy sources as "false narratives." And, they're not alone in their conclusion.

According to Reuters' fact check, "These claims are misleading, as they shift blame for the crisis away from what appears, so far, to be the root cause...The state's woes mainly stem from issues surrounding its independent power grid. The cold weather affected all fuel types, not just renewables."

Determining what went wrong isn't a blame game. A proper diagnosis is essential to any problem solving. And a failure to conduct a thorough analysis could have serious consequences. Currently, a number of legislative solutions are floating around the state Capitol that would shift the blame and consequences to renewable energy.

These proposals would increase the financial burden on Texas consumers, many of whom are still recovering from the storm, and hamper new investments in renewable energy. Additionally, and perhaps even more concerning, they don't adequately address the root cause of the winter storm energy crisis, further exposing Texans to another meltdown.

Texas' leadership on renewable energy production is no small feat, and it didn't happen by chance. For two decades, our lawmakers have made strategic decisions that led to the advancement of renewable energy production, and it has paid dividends in terms of jobs, economic growth, energy reliability, sustainability and even the state's reputation.

We are at a critical juncture, but Texas doesn't have to choose between reliability, affordability and sustainability. We can offer reliable energy and green energy, stop another crisis before it happens again and move forward with renewable energy investments.

Continuing to promote policies that pushed Texas to its leadership position will unleash even more investments and innovation, which is good for Texas, good for Texans and good for the planet.

As we observe Earth Day, we would urge our leaders to consider the possibilities. Rather than turn the clock back, let's use this storm as an opportunity to innovate further.

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Vinnie Campo is the general manager for Bulb U.S., a new type of energy company that aims to make energy simpler, cheaper, and greener by providing renewable electricity to its members from Texas wind and solar. He is based in Texas.

Texas has one of the worst environmental records in the U.S., a new study finds. Photo courtesy of Union of Concerned Scientists

New report lands Texas among 10 worst states for the environment

Not so green

Everything is bigger in Texas, even the negative impact it has on the environment, a new study finds.

Ahead of Earth Day (April 22), personal finance site WalletHub analyzed all 50 states, looking at 27 metrics across three categories: environmental quality, eco-friendly behaviors, and climate-change contributions.

Texas' overall ranking is an abysmal No. 41, making it one of the least green places in America.

The Lone Star State comes in at No. 48 in environmental quality, No. 28 in eco-friendly behaviors, and No. 37 in climate-change contributions. Under climate-change contributions, WalletHub analyzed carbon-dioxide, methane, nitrous-oxide, and fluorinated greenhouse-gas emissions per capita. The higher the number, the worse a state performs in that category.

Despite an overall poor showing, Texas claims a few top spots in individual metrics, performing best in renewable portfolio standards (No. 1), states with electronic waste recycling programs (No. 1), and corporate clean energy procurement index score (No. 5). On the other side of the spectrum, Texas performs worst in the number of alternative-fuel stations per capita (No. 40), air quality (No. 41), water quality (No. 44), and energy consumption per capita (No. 45).

So why exactly is this a WalletHub story? What does this have to do with your money?

"Eco-friendliness and personal finance are related," the report says. "Our environmental and financial needs are the same in many areas: providing ourselves with sustainable, clean drinking water and food, for example. We also spend money through our own consumption and taxes in support of environmental security."

Vermont ranks first in environmentally friendliness, landing at No. 1 in environmental quality, No. 3 in eco-friendly behaviors, and No. 25 climate-change contributions.

Eight states have worse records than Texas: Oklahoma, Mississippi, Arkansas, Alabama, North Dakota, Wyoming, Kentucky, West Virginia, and Louisiana.

While not so green right now, Texas has made great strides in wind energy in recent years. The American Wind Energy Association's annual report for 2018 shows the Lone Star State is home to roughly one-fourth of all U.S. wind power production. If Texas were a country, the wind energy group says, it would rank fifth in the world for wind power capacity, with nearly 25,000 megawatts installed. And with nearly 7,000 megawatts of wind energy projects under construction or development at the end of 2018, Texas is adding more wind energy capacity than what all but two other states actually have installed.

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This story originally ran on CultureMap.

The coffee company announced three Houston-area solar projects. Courtesy of Starbucks

Starbucks brews up solar energy initiative across Houston and Texas

Green coffee

Coffee shop chain Starbucks is plugging into Texas' solar energy industry in a big way.

Two 10-megawatt solar farms in Texas owned by Cypress Creek Renewables LLC are providing enough energy for the equivalent of 360 Starbuck stores, including locations in Houston, Humble, Katy, and Spring. Separately, Starbucks has invested in six other Texas solar farms owned by Cypress Creek, representing 50 megawatts of solar energy; Santa Monica, California-based Cypress Creek is selling that power to other customers.

Three of the eight solar farms in the Texas portfolio are just outside the Houston metro area. One is in the Fort Bend County town of Beasley, while two of the projects are in Wallis and Wharton.

Starbucks already relies on a North Carolina solar farm equipped with 149,000 panels to deliver solar energy equivalent to powering 600 Starbucks stores in North Carolina, Delaware, Kentucky, Maryland, Virginia, West Virginia, and Washington, D.C.

"Our long-standing commitment to renewable energy supports our greener-retail initiative and demonstrates our aspiration to sustainable coffee, served sustainably," Rebecca Zimmer, Starbucks' director of global environmental impact, says in an April 15 release about its solar investment in Texas. "Now, we are investing in new, renewable energy projects in our store communities, which we know is something our partners and customers can appreciate for their local economy and for the environment."

The solar commitment in Texas aligns with Starbucks' goal of designing, building, and operating 10,000 "greener" company-owned stores around the world by 2025. The Seattle-based retailer expects this initiative — whose features include renewable energy, energy efficiency, and waste reduction — to cut $50 million in utility costs over the next 10 years.

U.S. Bank's community development division teamed up with Starbucks and Cypress Creek on the Texas solar farms. Chris Roetheli, a business development officer at U.S. Bank, says solar tax equity investments like those undertaken by Starbucks are growing in popularity among non-traditional investors.

"Starbucks is taking a unique approach — investing in solar farms regionally to support a specific group of its stores," Roetheli says in the announcement of the solar collaboration. "This is a new concept, and one that I think other companies are watching and may follow. It's an interesting model that allows them to talk specifically about the impact of their investments."

Starbucks' investment comes as Texas' stature in the solar energy sector keeps rising, along with the state's role in the wind energy industry.

According to the Solar Energy Industries Association, more than 2,900 megawatts of solar capacity are installed in Texas. That's enough energy to power nearly 350,000 homes. Among the states, Texas ranks fifth for the amount of installed solar capacity.

Solar investment in Texas exceeds $4.5 billion, with about 650 solar companies operating statewide, the association says. The solar energy industry employs more than 13,000 full-time and part-time workers in Texas, according to the Texas Solar Power Association.

With more than 4 gigawatts (over 7,000 megawatts) of solar capacity expected to be added in Texas over the next five years, the national solar association reported in 2018 that "Texas is poised to become a nationwide leader in solar energy … ."

As it stands now, though, solar supplies less than 1 percent of Texas' electricity.

A 2018 state-by-state report card for friendliness toward solar power assigned a "C" to Texas, putting it in 34th place among the states.

The report card, released by SolarPowerRocks.com, lauds the backing of big Texas cities like Houston, Austin, Dallas, and San Antonio in encouraging residential solar installations.

However, the report card adds, outlying areas in Texas lag their urban counterparts in support of residential solar, "and we'd like lawmakers here to codify more protections and goals for solar adoption, but in the most populous areas, the Lone Star [State] shines."

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.