Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. Photo via Getty Images

A Houston nuclear engineer and entrepreneur wants consumers to capture their own ray of sunlight to brighten the prospect of making clean energy a bigger part of the power grid.

Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. An experienced entrepreneur, Childress also serves as founder and CEO of technology software company Macorva.

Although trained in nuclear power plant design, solar power drew his interest as a cheaper and more accessible alternative, and Childress tells InnovationMap that he thinks that the transition to cleaner energy, in Texas especially, needs to step up.

With energy demand skyrocketing, and the push toward renewable solutions, solar seems like a safe bet for Childress, a former competitive high-stakes poker player. Childress cites a recent Yale University study that says 63 percent of Americans “feel a personal responsibility to help reduce global warming.”

But some studies show that 80 to 90 percent of the money invested into fighting climate change “aren’t going to things that people actually consider helpful,” he says.

“They’re more just projects that sound good, that are not actually taking any action,” says Childress, who has called Houston home for 25 years. He received his doctorate in medical physics at M.D. Anderson Cancer Center, where he worked on software that provided radiation therapy for patients.

The initial Kickstarter fundraising round, which will be launched soon, will finance the construction of one utility-scale solar farm, on about five to 10 acres, which would produce about 1 megawatt, or 1,000 kilowatts, of clean energy. The plant would make enough energy to power about 200 average homes.

Childress says interest has been strong, with several thousand signed up on the Kickstarter launch list. Some who are signed up expressed interest in a subscription, he said, and that may be offered later. Initially, though, for a one-time purchase of $95, a Solar Slice client can purchase one virtual 50W slice of solar power, produced by the farm. Over its lifetime, Childress says, that one purchase can offset three tons of carbon dioxide.

The app tracks carbon offsetting, and energy production for the slice, showing a client “exactly how much I have helped the climate, here’s exactly how (many) emissions I have prevented from putting in the atmosphere,” he says.

The energy produced by five slices can offset the average American’s carbon footprint for a year, and the power generated by the solar farm will be sold to the electric grid. As clients purchase more slices, they can earn eco-credits to donate to other climate-friendly partners, to plant trees or create pollinator habitats.

While Solar Slice is a for-profit venture, contributors won’t get rich or even make money from their purchase. Rather, it provides validation.

“Our focus is maximizing the real world impact, not for financial gain. This is not something people sign up (for) to make money. We’re really clear about that,” Childress says. “I want to show that it’s possible to have a for-profit company that is sustainable, that does good work.

“And hopefully, we can be part of the spirit…for a bigger movement, and for consumers and business, especially, to do things that matter.”


Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. Photo courtesy

The largest U.S. solar plants are in Nevada and California, and those states are sites under consideration, but Childress says Texas is the most likely home for the initial project. The ten largest utility-scale solar plants in Texas by capacity are all in far west or central parts of the state, according to the state comptroller’s office.

Childress has a team of four, who are handling the marketing, plant design and site scouting, and hopes to hire five to 10 more, depending on response and growth. He says the Solar Slice consumer can directly connect in real time to the contribution that their purchase will make toward a green energy future.

“That was our inspiration..let’s start something that is really making a difference..and making really clear to the individuals what’s being done,” he says.

Solar energy has become a growing source of power for Texas, comprising about 6 percent of the state’s energy generation, as of 2022, the comptroller’s office says.

The state ranks first in projected growth of solar energy over the next five years, with more than 9,500 operating solar plants, and many thousands more announced, according to the state Public Utility Commission.

“We would absolutely love to make this into something where we are building plants around the nation, around the world,” Childress he says.

However, resistance to alternative energy projects like solar and wind, especially on a large scale, remains in some quarters.

Obtaining site permits for swaths of land can be also a challenge. For example, a recent survey by Berkeley Lab of 123 professionals from 62 unique, large-scale wind and solar energy facilities showed that about one-third of wind and solar siting applications in the past five years were canceled.

Half of the projects experienced delays of six months or longer. And according to the survey, developers expect the trend to continue, and become more expensive to address.

However, another Berkeley Lab survey of residents who live within three miles of a solar power plant showed that most view the plant positively. The larger the plant, the more negative the response in the survey. The smaller the farm, the more positive the reactions.

Childress says many of the common objections to utility-scale solar farms are misguided, and incorrect. For example, the concern that they would take over available farmland or take up too much space.

He says that even if the entire U.S. power grid relied solely on solar power, the plants would occupy not even a half percent of available land, which is about one percent farmland.

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This article originally ran on EnergyCapital.

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Houston bio-based materials startup breaks into footwear

cleaner shoes

A more sustainable shoe can’t be built on a single material swap. From the hard plastics hidden inside a heel to the material covering a sneaker’s upper, footwear is a collection of components—and each presents a different challenge for companies trying to move away from conventional, petroleum-based materials.

Houston-based Rheom Materials wants to change that equation. The biomaterials company has launched a sustainable footwear platform featuring two of its bio-based alternatives: Benree, a biodegradable plastic designed for hard internal components, and ShoraiDura, a durable leather alternative for footwear uppers.

“A shoe is not one material; it is multiple parts working together as a system. Substituting a single material has never moved the needle,” Rheom founder and CEO Zimri Hinshaw said in a news release. “Rheom wants to make it easier for brands to make a positive impact. By providing an assortment of bio-based materials, brands can change the system, not just a swatch of it.”

Benree is Rheom’s alternative to conventional hard plastics used in footwear construction. The company says it is a 100 percent USDA-certified bio-based, biodegradable material with performance comparable to acrylonitrile butadiene styrene (ABS), a widely used engineering plastic.

The material has passed SATRA testing for high-heel applications with Bared Footwear, an Australian footwear brand.

“At Bared, we're constantly on a journey to remove plastic from our shoes. At the same time, our brand won't compromise on quality for the end customer,” Millie Richards, Bared’s head of sustainability, added in the release. “From samples and testing, Rheom has proven to be solving both of those problems for us. We look forward to seeing how they develop as a company and would love to use them in our shoes.”

Rheom says it is also exploring Benree for additional internal components, including toe puffs and heel counters.

Rheom's Benree material was used for a high-heel prototype. Photo courtesy Rheom Materials

The company’s ShoraiDura material addresses another major part of shoe construction: the upper, which must withstand repeated flexing, friction and wear while maintaining its appearance.

Containing about 80 percent bio-based content, ShoraiDura is engineered as a durable leather alternative for footwear. Rheom says the material’s molecular structure is designed to deliver the strength and durability required for demanding applications.

To demonstrate how the material could be used in finished products, Rheom worked with a Los Angeles-based footwear manufacturer to create two prototypes: an athletic sneaker and a textured skater shoe, both featuring ShoraiDura uppers.

The two offerings reflect the company’s broader strategy. Rather than asking brands to evaluate a single material in isolation, Rheom is positioning its platform as a way to explore alternatives across different parts of footwear construction.

The next step is broader industry adoption. Benree’s testing with Bared Footwear and ShoraiDura’s footwear prototypes offer early examples of how the materials could be applied, while commercial use will depend on manufacturers’ evaluations and product-development decisions.

Rheom Materials is a Houston-based biomaterials company developing bio-based alternatives to petrochemical plastics. Its product portfolio includes Shorai, a leather alternative, and Benree, a hard plastic alternative.

The company debuted Shorai at the Houston Livestock Show and Rodeo in 2025 and showed a bio-based "leather" collection in Milan earlier this year. Read more here.

Houston's Rice University named the No. 1 best Texas college for 2027

We're No. 1

With early application season in full swing, a local university is racking up accolades on a new list of the 10 best Texas colleges for 2027.

Rice University topped the list as the No. 1 best university in Texas in WalletHub's annual "College & University Rankings" report, showing Houston students don't have to travel out of state to earn a top-notch degree.

WalletHub analyzed 738 colleges and universities in the U.S. using 30 relevant metrics, including factors like student-faculty ratios, graduation rates, and many more. Universities were ranked nationally, regionally, and across seven key dimensions: student selectivity; cost and financing; faculty resources; campus safety; campus experience; educational outcomes; and career outcomes.

Rice also ranked No. 2 in the regional comparison of best universities in the South, and appeared No. 11 nationwide.

Across the seven main categories, the university performed best for its faculty resources (No. 4), education outcomes (No. 11), and student selectivity (No. 16), and earned top-100 rankings for its career outcomes (No. 28) and campus experience (No. 58).

Rice only lagged behind in the national rankings for campus safety (No. 632) and cost and financing (No. 666), but neither category swayed the university's top-performing overall position.

Meanwhile, the University of Houston ranked 75th regionally and 339th nationally. UH's cost and financing rank among the top 200 nationally, landing 177th, and it ranked 284th for its campus safety.This is how the report ranked UH in the five remaining categories out of all 738 schools:
  • No. 306 – Career outcomes
  • No. 324 – Student selectivity
  • No. 343 – Education outcomes
  • No. 383 – Campus experience
  • No. 715 – Faculty resources
Four more local schools ranked among the best universities in the South: Houston Christian University (No. 204), Prairie View A&M University (No. 245), University of Houston-Downtown (No. 251), and Texas Southern University (No. 254).The Houston-area universities, including their graduate and online programs, have earned heaps of national and worldwide praise this year from prestigious educational reviewing authorities U.S. News & World Report and The Princeton Review. Rice University also topped Niche's list of the best Texas universities for 2027.

These are WalletHub's top 10 best colleges and universities in Texas for 2027:

  • No. 1 – Rice University
  • No. 2 – Trinity University
  • No. 3 – The University of Texas at Austin
  • No. 4 – Texas A&M University-College Station
  • No. 5 – Southwestern University
  • No. 6 – University of Dallas
  • No. 7 – Austin College
  • No. 8 – Texas Christian University
  • No. 9 – LeTourneau University
  • No. 10 – The University of Texas at Dallas
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This article first appeared on CultureMap.com.

UH expands Medical Center footprint with $77M research facility

breaking ground

The University of Houston broke ground on a brand new $77.5 million Medical Research Building last week that will host clinical trials and a virtual reality behavioral health suite, among other laboratories. Designed by SmithGroup, it will be the second building on the UH Medical Center campus after the Fertitta College of Medicine opened in 2022.

“The Medical Research Building was designed to foster collaboration and discovery while creating a welcoming environment for students, researchers and the community,” Kalman Nagy, higher education studio design leader for SmithGroup, said in a news release. “As the second building on the University of Houston’s medical campus, we wanted to create a strong connection to the College of Medicine and the surrounding woodlands, with outdoor terraces, shared learning spaces and natural views that inspire interaction and innovation.”

Located just behind the Fertitta building at 5150 Medical Service Drive, the 57,000-square-foot building will house wet laboratories, computational research spaces and specialized facilities for clinical research. The virtual reality behavioral health suite will use immersive technology to deliver care through manufactured audio and visual environments. It’s part of the college’s vision for developing new medical advancements in the heart of Houston’s medical community. The groundbreaking comes on the heels of the launch of the university's cross-disciplinary academic venture, UH Health, this summer.

“This groundbreaking marks an important next step in the growth of the Fertitta College of Medicine and UH Health,” Dr. Jonathan McCullers, vice president for health affairs at UH, added in the release. “We are building the research capacity to match our ambitions—bringing together scientists, physicians and experts from across the University to accelerate discovery and turn promising ideas into solutions that improve people’s lives.”

UH’s journey to establish a significant presence alongside the University of Texas and Baylor in the Medical Center started in 2009 when it became an official full institutional member. The university launched its plans for the Fertitta building in 2013, and is pursuing Health Science Center designation from the Texas Legislature in the next year’s session.

“The research that will take place here will directly benefit our community,” UH President Renu Khator added. “Diseases do not recognize disciplinary silos, and neither should our research. This building will bring together experts from across UH to break down those barriers, work across disciplines and tackle some of our most complex health challenges.”

The building is slated to open in 2028.