Deanna Zhang of Tudor, Pickering, Holt & Co. joined the Houston Innovators Podcast to discuss 2020's effect on the energy transition — and what that meant for startups. Photo courtesy of TPH

In 2020, the economy was hit with a double whammy of sorts — from a devastating pandemic to an unprecedented drop in oil prices — and that has meant that the energy transition is happening at a faster pace than ever.

Deeana Zhang, director of energy technology at Tudor, Pickering, Holt & Co., joined the Houston Innovators Podcast this week to discuss what she observed throughout the year as she worked closely with energy tech businesses.

"Because it was such a disruptive year, everyone — from the commercial and business side to the consumer side — has rethought how they are using and thinking about energy," she says on the show. "It was the first time that you saw such a mass disruption of energy demand, and that rolls through the entire ecosystem."

The effect touched all four corners of the industry in some way, and it forced all major energy players to be more intentional with their business strategy — especially when it comes to the role they play within the energy transition.

"The energy transition saw a huge uptick in 2020 — and there's a lot of implications of that from what pilots are getting commercialized and what companies are getting more funding," says Zhang. "All around it was hugely disruptive — but hugely beneficial I think to the energy transition."

Environmental, social and corporate governance, which has been growing in importance to investors and company leadership for several years now, also got a spur from 2020. ESG has been propelled by activism and consumer choice, Zhang says, but now investors are now forced to be more cognizant than ever.

"What's the investor responsibility to society as a whole? It's going beyond economics — what's your social and environmental responsibility? I think a lot of that expansion of responsibility is what's driving ESG," she says. "That's going to trickle down corporations and companies as they think about what is their expanded responsibility."

Zhang, who works closely with energy startups, also observed a profound effect when it came to capital and new business.

"A lot of companies say numbers go down in 2020, but the exceptions to that were companies that had a strong energy transition angle. Those companies were able to reposition themselves to ... counteract what was going on in the market in general," Zhang says. "From a capital raising standpoint, it was also really challenging. A lot of funds put a hold on investing in new companies and even some to their existing portfolio."

Investment came back toward the second half of the year, but there was a new level of caution, she says, and this is something startups saw happening across the country.

Zhang discusses more about what she saw happen last year for energy technology — as well as what that means for 2021 — on the episode. Listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.

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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.