low-carbon nutrients

Nonprofit harvests solar energy to serve Houston's food deserts

Sustainable nonprofit Urban Harvest has upgraded to use solar energy. Photo courtesy Andrew Hemingway/Urban Harvest

Houston nonprofit Urban Harvest is plugging into the power of solar energy.

The nonprofit’s Mobile Market program has added a custom-designed, solar-equipped trailer to its fleet. The market provides fresh locally sourced food to “food deserts.”

“By harnessing the sun’s energy, the trailer can become a self-sustaining unit, eliminating reliance on conventional power sources for a substantial period of time,” says Urban Harvest.

The trailer consists of a Ford F150 hybrid truck with a custom-designed trailer that’s equipped with solar power capabilities. The unit enables Urban Harvest to store and transport nearly $5,000 worth of fresh produce and goods to support the Mobile Market program, which serves an average of 1,200 customers each month.

Urban Harvest is now using solar energy to bring its produce around Houston. Photo courtesy Andrew Hemingway/Urban Harvest

The trailer’s three refrigerators and one deep freezer are entirely powered by solar energy.

“During Hurricane Harvey, we witnessed the devastating impact of disrupted food supply chains, leaving farmers unable to transport and store their produce. We knew there had to be a better way,” says George Hixson, Mobile Market manager for Urban Harvest. “Our solar-powered trailer and F150 hybrid is a game-changer, addressing not only efficiency but also disaster relief and community engagement.”

Urban Harvest foresees expanding the solar concept.

“There was little to no access to local produce during Hurricane Harvey due to crops being flooded out during the storm. This vehicle will allow us to assist farmers in these types of situations getting crops out of the field and into neighborhoods where there is no fresh produce,” says Janna Roberson, executive director of Urban Harvest.

Urban Harvest provides farmers markets, community garden programming, gardening classes, and youth education.

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A View From HETI

Helix Earth's technology has the potential to cut AC energy use by up to 50 percent. Photo by Sergei A/Pexels

Renewable equipment manufacturer Helix Earth Technologies is one of three Houston-based companies to secure federal funding through the Small Business Innovation Research (SBIR) Phase II grant program in recent months.

The company—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—has received approximately $1.2 million from the National Science Foundation to develop its high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial AC units. The company reports that its technology has the potential to cut AC energy use by up to 50 percent.

"This award validates our vision and propels our impact forward with valuable research funding and the prestige of the NSF stamp of approval," Rawand Rasheed, Helix CEO and founder, shared in a LinkedIn post. "This award is a reflection our exceptional team's grit, expertise, and collaborative spirit ... This is just the beginning as we continue pushing for a sustainable future."

Two other Houston-area companies also landed $1.2 million in NSF SBIR Phase II funding during the same period:

  • Resilitix Intelligence, a disaster AI startup that was founded shortly after Hurricane Harvey, that works to "reduce the human and economic toll of disasters" by providing local and state organizations and emergency response teams with near-real-time, AI-driven insights to improve response speed, save lives and accelerate recovery
  • Conroe-based Fluxworks Inc., founded in 2021 at Texas A&M, which provides magnetic gear technology for the space industry that has the potential to significantly enhance in-space manufacturing and unlock new capabilities for industries by allowing advanced research and manufacturing in microgravity

The three grants officially rolled out in early September 2025 and are expected to run through August 2027, according to the NSF. The SBIR Phase II grants support in-depth research and development of ideas that showed potential for commercialization after receiving Phase I grants from government agencies.

However, congressional authority for the program, often called "America's seed fund," expired on September 30, 2025, and has stalled since the recent government shutdown. Government agencies cannot issue new grants until Congress agrees on a path forward. According to SBIR.gov, "if no further action is taken by Congress, federal agencies may not be able to award funding under SBIR/STTR programs and SBIR/STTR solicitations may be delayed, cancelled, or rescinded."

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