3 startups join Houston cleantech incubator

just joined

Halliburton Labs has announced its next set of clean energy tech companies. Photo courtesy of Halliburton

Three businesses have just joined Halliburton Labs, a Houston-based accelerator for clean energy startups.

The new members of Halliburton Labs are A-W Energy, a Finland-based startup whose technology converts ocean waves into energy; RedShift Energy, a Pennsylvania-based startup whose technology recovers hydrogen; and Renkube, an India-based startup whose technology aims to lower the cost of producing solar power.

Halliburton Labs says its participants enjoy access to technical expertise, mentorships, and other benefits.

“These new companies reflect our view that numerous innovations at scale are important in the evolution of energy systems. … We are eager to collaborate with these companies to help them achieve their strategic, operational, and financial milestones,” Dale Winger, managing director of Halliburton Labs, says in a news release.

Halliburton, a provider of energy equipment and services, launched Halliburton Labs in 2020. The accelerator, a wholly owned subsidiary of Houston-based Halliburton, is now sifting through applications for its next group of startups. Finalists will make presentations September 28 at a Halliburton Labs pitch day.

Here are details about the three new startups at Halliburton Labs.

AW-Energy

AW-Energy’s WaveRoller technology harnesses kinetic energy from ocean waves to generate electricity.

“With the technology already certified and deployed at commercial scale, we are excited to access Halliburton’s global network and engineering expertise to develop our first series of wave farms,” says Christopher Ridgewell, CEO of AW-Energy.

RedShift Energy

RedShift Energy uses plasma energy to produce hydrogen from hydrogen sulfide. For instance, its technology unlocks trapped reserves downstream and recycles hydrogen upstream.

“Joining Halliburton Labs will accelerate commercialization with the help of their broad expertise, supply chain experience, and worldwide network,” says Alex Gutsol, co-founder and chief scientist of RedShift Energy.


Renkube

Renkube developed a glass designed to harvest light in an effort to lower the cost of generating solar energy. The patent-pending glass is used on solar panels to track sunlight.

“We intend to leverage Halliburton’s deep industrial expertise in manufacturing and operations as we roll out our product for commercialization,” says Balaji Lakshmikanth Bangolae, founder and CEO of Renkube.

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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.