Behold the future JSX Aura Aero Era 19-seat hybrid-electric aircraft. Rendering courtesy of JSX

Hop-on jet service JSX is soaring into a more eco-friendly future with plans to acquire more than 300 hybrid-electric airplanes.

The Dallas-based air carrier revealed in a release that they'll add up to 332 small hybrid planes in 2028, allowing them to connect to smaller, underserved communities around the country.

"Following the Biden Administration’s call last week for the aviation industry to cut carbon emissions ... JSX expects to take delivery of its first hybrid-electric aircraft in 2028, shepherding the next chapter of regional aviation as the first in its category to adopt this impactful cutting-edge renewable energy technology," JSX says in the release. "While commercial airlines can serve just 480 airports in the United States, JSX’s small community-friendly Part 135 and Part 380 Public Charter operations, combined with the exceptional performance capabilities of these hybrid-electric airplanes, enables service opportunities to thousands of federally funded airports otherwise inaccessible to people who can’t own or charter an entire aircraft."

The new cutting-edge airplanes will come from manufacturers Electra, Aura Aero, and Heart Aerospace and will include:

  • up to 82 Electra eSTOL 9-seat aircraft (32 firm orders and 50 options)
  • up to 150 Aura Aero Era 19-seat planes (50 firm orders and 100 options)
  • up to 100 Heart Aerospace ES-30 30-seat planes (50 firm orders and 50 options)

JSX currently operates about 50 semi-private planes configured with 30 seats, from private terminals in major cities including Dallas (Love Field) and Houston (Hobby Airport), and in "leisure" markets such as Destin, Florida and the Bahamas. The company recently shifted part of its operational focus to small markets (such as Midland-Odessa).

JSX promises a "no crowds, no lines, and no fuss" travel experience, allowing customers to check in and "hop on" just 20 minutes before departure. The carrier recently came under fire from federal regulators and major commercial airlines for its looser security regulations that more closely resemble those of charter providers than those of domestic airlines.

JSX is now doubling down on its pledge to service underserved cities, declaring in the release, "JSX has mastered the trifecta of marketing, selling, and operating attainable by-the-seat public charter air service to numerous small communities that have no other regular air service."

The future Heart Aerospace ES-30 30-seat hybrid-electric aircraft in JSX livery. Rendering courtesy of JSX

The new smaller, electric-hybrid aircraft will allow JSX to "dramatically lower the cost of its service and open new flight options at over 2,000 U.S. airports," they say, "stimulating local economies and empowering regional mobility and connectivity for communities devoid of regular air service today."

They point specifically to Del Rio, Texas, which has lost all commercial air service since the pandemic, they say, as an example of a small city that now can be reconnected to major cities in a cost-effective, sustainable way.

"The favorable operating economics of the Aura Aero Era, Heart ES-30, and Electra eSTOL can create thousands of new and expanded air travel options across the United States without the need for government subsidy," the company says.

In a statement, JSX CEO and cofounder Alex Wilcox adds, "As the network airlines order ever-larger aircraft it is inevitable that more and more small markets will be abandoned. Electra, Aura Aero, and Heart Aerospace are visionary organizations that share in JSX’s commitment to serving smaller communities, working together with us to weave sustainable regional air travel back into the fabric of American commerce and freedom of movement.”

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This article originally ran on CultureMap.

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40+ climatetech startups join Greentown, including a dozen from Houston

green team

More than 40 climatetech startups joined the Greentown Labs Houston community in the second half of 2025. Twelve hail from the Bayou City.

The companies are among a group of nearly 70 that joined the climatetech incubator, which is co-located in Houston and Boston, in Q3 and Q4.

The new companies that have joined the Houston incubator specialize in a variety of clean energy applications, from green hydrogen-producing water-splitting cycles to drones that service wind turbines.

The local startups that joined Greentown Houston include:

  • Houston-based Wise Energie, which delivers turnkey microgrids that blend vertical-axis wind, solar PV, and battery storage into a single, silent system.
  • The Woodlands-based Resollant, which is developing compact, zero-emissions hydrogen and carbon reactors to provide low-cost, scalable clean hydrogen and high-purity carbon for the energy and manufacturing sectors.
  • Houston-based ClarityCastle, which designs and manufactures modular, soundproof work pods that replace traditional drywall construction with reusable, low-waste alternatives made from recycled materials.
  • Houston-based WattSto Energy, which manufactures vanadium redox flow batteries to deliver long-duration storage for both grid-scale projects and off-grid microgrids.
  • Houston-based AMPeers, which delivers advanced, high-temperature superconductors in the U.S. at a fraction of traditional costs.
  • Houston-based Biosimo, which is developing bio-based platform chemicals, pioneering sustainable chemistry for a healthier planet and economy.
  • Houston-based Ententia, which offers purpose-built, generative AI for industry.
  • Houston-based GeoKiln Energy Innovation, which is developing a new way to produce clean hydrogen by accelerating natural geologic reactions in iron-rich rock formations using precision electrical heating.
  • Houston-based Timbergrove, which builds AI and IoT solutions that connect and optimize assets—boosting visibility, safety, and efficiency.
  • Houston-based dataVediK, which combines energy-domain expertise with advanced machine learning and intelligent automation to empower organizations to achieve operational excellence and accelerate their sustainability goals.
  • Houston-based Resonant Thermal Systems, which uses a resonant energy-transfer (RET) system to extract critical minerals from industrial and natural brines without using membranes or grid electricity.
  • Houston-based Torres Orbital Mining (TOM),which develops autonomous excavation systems for extreme environments on Earth and the moon, enabling safe, data-driven resource recovery and laying the groundwork for sustainable off-world industry.

Other startups from around the world joined the Houston incubator in the same time period, including:

More than 100 startups joined Greentown this year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter.

Flatter joined Greentown in the top leadership role in February 2025. She succeeded former CEO and president Kevin Knobloch, who stepped down in July 2024.

"I moved back to the United States in March 2025 after six years overseas—2,000 miles, three children, and one very patient husband later. Over these months, I’ve had the chance to hear from the entrepreneurs, industry leaders, investors, and partners who make this community thrive. What I’ve experienced has left me brimming with urgent optimism for the future we’re building together," she said in the release.

According to Flatter, Greentown alumni raised more than $2 billion this year and created more than 3,000 jobs.

"Greentown startups and ecosystem leaders—from Boston, Houston, and beyond—are showing that we can move further and faster together. That we don’t have to choose between more energy or lower emissions, or between increasing sustainability and boosting profit. I call this the power of 'and,'" Flatter added. "We’re working for energy and climate, innovation and scale, legacy industry and startups, prosperity for people and planet. The 'and' is where possibility expands."

NRG makes latest partnership to grow virtual power plant

VPP partners

Houston-based NRG Energy recently announced a new long-term partnership with San Francisco-based Sunrun that aims to meet Texas’ surging energy demands and accelerate the adoption of home battery storage in Texas. The partnership also aligns with NRG’s goal of developing a 1-gigawatt virtual power plant by connecting thousands of decentralized energy sources by 2035.

Through the partnership, the companies will offer Texas residents home energy solutions that pair Sunrun’s solar-plus-storage systems with optimized rate plans and smart battery programming through Reliant, NRG’s retail electricity provider. As new customers enroll, their stored energy can be aggregated and dispatched to the ERCOT grid, according to a news release.

Additionally, Sunrun and NRG will work to create customer plans that aggregate and dispatch distributed power and provide electricity to Texas’ grid during peak periods.

“Texas is growing fast, and our electricity supply must keep pace,” Brad Bentley, executive vice president and president of NRG Consumer, said in the release. “By teaming up with Sunrun, we’re unlocking a new source of dispatchable, flexible energy while giving customers the opportunity to unlock value from their homes and contribute to a more resilient grid

Participating Reliant customers will be paid for sharing their stored solar energy through the partnership. Sunrun will be compensated for aggregating the stored capacity.

“This partnership demonstrates the scale and strength of Sunrun’s storage and solar distributed power plant assets,” Sunrun CEO Mary Powell added in the release. “We are delivering critical energy infrastructure that gives Texas families affordable, resilient power and builds a reliable, flexible power plant for the grid.”

In December, Reliant also teamed up with San Francisco tech company GoodLeap to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant network in Texas.

In 2024, NRG partnered with California-based Renew Home to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 to help households manage and lower their energy costs. At the time, the company reported that its 1-gigawatt VPP would be able to provide energy to 200,000 homes during peak demand.