Rice University, which works with Houston-based Moonshot Compost, reported a milestone achievement this month. Photo via Getty Images
Rice University and its campus community have officially diverted over 1 million pounds of food waste from landfills.
The university, which works with Houston-based Moonshot Compost, reported the milestone achievement this month. The program was originally launched in November 2020.
“The genesis of the current composting program was a partnership between Housing and Dining, the Office of Sustainability and an undergraduate student named Ashley Fitzpatrick,” says Richard Johnson, senior executive director for sustainability at Rice, in a news release.
“We spent quite a bit of time developing options for food waste composting at Rice with those efforts really ramping up in 2019. After a pilot project, further reflection and an interruption due to the pandemic, we found Moonshot Compost, and they proved to be the partner we needed.”
Fitzpatrick, the student who started it all went on to graduate and now works for Moonshot Compost. She did leave a legacy of student involvement in the program, and Isabelle Chang now serves as an undergraduate student intern in the Office of Sustainability. The role includes liaising with students and other major players on campus who have feedback for the program.
Rice previously had a composting program, but it never reached the same level of scale, per the news release.
“Many years ago — from the late 1990s to about 2007 — we had an on-campus composting device called the Earth Tub that provided food waste composting at one campus kitchen,” Johnson said. “However, the device failed, and frankly, the process of operating the device, getting the food waste into the device and maintaining it all proved onerous. Interest in composting remained after we decommissioned the Earth Tub, and for years we looked for alternatives [before finding Moonshot Compost].”
Launched in July 2020 by Chris Wood and Joe Villa, Moonshot operates with a team of drivers utilizing its data platform to quantify the environmental benefits of composting. The duo went on to team up with energy industry veteran Rene Ramirez to harness their compost into clean hydrogen power.
Last fall, Moonshot Hydrogen signed a memorandum of understanding with the Purdue Innovates Office of Technology Commercialization. The agreement includes facilitating the first operating commercial pilot that biologically turns food waste into hydrogen.
Moonshot Compost has announced its plans to create green hydrogen at scale. Photo via Getty Images
Founders and brothers-in-law Chris Wood and Joe Villa have joined forces with energy industry veteran Rene Ramirez to harness their compost into clean hydrogen power.
Earlier this month, the new branch of the existing company signed a memorandum of understanding with the Purdue Innovates Office of Technology Commercialization. The agreement comes close to a year after Ramirez first began working with Purdue University Northwest professors, Robert Kramer and Libbie Pelter, and Purdue University’s professor, John Patterson. The result is the first operating commercial pilot that biologically turns food waste into hydrogen.
This revelation comes just days after the Biden-Harris administration announced that it had set aside $7 billion to H2Hubs, a collection of seven regional hydrogen power stations, including one in the Houston area.
“We love the timing. There’s just a lot of interest right now,” Wood tells EnergyCapital in a video call with Villa and Ramirez. “It's been fun to watch Rene's long relationship with Purdue come to fruition on behalf of that hydrogen at the same time that the DoD is moving forward with their announcement on the hydrogen hubs.”
Wood and Villa founded Moonshot Compost three years ago.
“The thought was, 'waste is so valuable, and there's so much of it in the trash.' So we wanted to focus on, ‘Let's get our hands on as much food waste as possible,’ and always be focused on doing the best thing with our food waste,” Wood says.
Initially, that meant making compost, which saved the waste from a landfill and produced high-quality, nutrient-rich soil. Customers include both private homes and commercial accounts. Those include heavy hitters like Rice University, Conoco Phillips and Texas Children’s Hospital, as well as beloved restaurants ranging from Bludorn to Tacodeli. And that’s just in Houston. The company now collects from businesses in Austin, Dallas and Waco, too.
That extended footprint will be important to Moonshot Hydrogen.
“Our big dream is ideally that we have one of these hydrogen facilities in almost every city that we can think of. Your city has that ability to charge up or refuel the cars with hydrogen at-location and not have to worry about going 300 miles away,” says Ramirez.
Filling up your car with zero-emission hydrogen made from compost? It could be a reality sooner than you think. According to Wood, Moonshot is already in the preliminary stages of discussions with a facility to pilot just such a program.
“We’ve been thrilled with how receptive people are. There does seem to be a general acknowledgment that this would fit well with Houston’s desire to be the energy transition capital of the world,” he says.
Their patent-protected technology assures that Moonshot is the only company with this novel solution to food waste. Most exciting is the fact that the institutions with which Moonshot already partners could be on the ground floor of being at least partially powered by their own discarded scraps.
“Everyone loves the circularity aspect of it,” says Ramirez. And with a potential launch as soon as next March, it’s one step closer to a reality for the Energy Transition Capital.
This innovative European company has already saved nearly 30,000 meals from being wasted in Houston. Photo via toogoodtogo.com
Since expanding into Houston just over two months ago, an app that combats food waste has saved over 28,000 meals.
By partnering with locally owned vendors like the Village Bakery, as well as larger chains like Tiff’s Treats, Too Good To Go offers Houstonians a variety of discounted goodies. Users can browse a range of stores and sign up for a “surprise bag,” an assemblage of surplus food that typically costs $5.
The free mobile app now connects savvy shoppers to 130 Houston area stores, allowing them to enjoy food that would otherwise be thrown away. Based in Denmark, Too Good To Go previously launched in Texas in Austin in 2021, before its statewide expansion into Dallas, Houston, and San Antonio in July.
"We are excited to expand our app across Texas to partner with the dynamic food scene and culture," says Chris MacAulay, Too Good To Go US Country Director, in a press release. "In partnership with the incredible local food businesses across Texas, we want to make reducing food waste accessible to all. Together, with the great restaurant community and residents in Texas, we know we will have an immediate impact."
Sarah Soteroff, senior PR manager of Too Good To Go’s North American branch, shared the European based corporation’s scaling up of operations in Texas is part of their plan to move across the United States, going into more cities where food waste persists.
“Our goal is to reduce food waste everywhere that it occurs. So in the long term, we want to eliminate food waste globally,” Soteroff says.
The move into U.S. cities has been gradual, as Soteroff said Too Good To Go works to get an initial network of 50 businesses signed up for the app before officially launching. Beyond getting vendors to list their surplus stock on the app, Too Good To Go representatives aid in marketing and educating the stores on how to use the app.
“We want to make sure that we are setting those businesses up for success and ensuring that consumers know about it through PR, through the stories we share. That businesses do feel as though there’s a value to them for being on the app,” Soteroff explains.
Though the surprise bags are typically priced at about one-third their retail values, vendors can still bring in business through these mystery deals. Roughly 8,500 unique users in Houston have made purchases through the app since it debuted, preventing over 28,000 meals from ending up in landfills.
“For us to ensure that we are able to reduce food waste, we do have to be going into markets like Houston, Dallas, San Antonio, and Austin–in those larger cities where there’s a larger concentration of stores,” Soteroff shares.
According to the Too Good To Go website, every surprise bag purchased prevents the “CO2e emission of charging one smartphone fully 422 times,” and in 2022 the company averted nearly 200,000 tons of CO2e emissions through its community partnerships.
Houston maintained its No. 3 status this year among U.S. metro areas with the most Fortune 500 headquarters. Fortune magazine tallied 26 Fortune 500 headquarters in the Houston area, behind only the New York City area (62) and the Chicago area (30).
Last year, 23 Houston-area companies landed on the Fortune 500 list. Fortune bases the list on revenue that a public or private company earns during its 2024 budget year.
On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. That’s down one spot from its No. 7 perch on the 2024 list. During its 2024 budget year, ExxonMobil reported revenue of $349.6 billion, up from $344.6 billion the previous year.
Here are the rankings and 2024 revenue for the 25 other Houston-area companies that made this year’s Fortune 500:
Nationally, the top five Fortune 500 companies are:
Walmart
Amazon
UnitedHealth Group
Apple
CVS Health
“The Fortune 500 is a literal roadmap to the rise and fall of markets, a reliable playbook of the world's most important regions, services, and products, and an indispensable roster of those companies' dynamic leaders,” Anastasia Nyrkovskaya, CEO of Fortune Media, said in a news release.
Among the states, Texas ranks second for the number of Fortune 500 headquarters (54), preceded by California (58) and followed by New York (53).
Three Houston companies claimed spots on LexisNexis's 10 Most Innovative Startups in Texas report, with two working in the geothermal energy space.
Sage Geosystems claimed the No. 3 spot on the list, and Fervo Energy followed closely behind at No. 5. Fintech unicorn HighRadius rounded out the list of Houston companies at No. 8.
LexisNexis Intellectual Property Solutions compiled the report. It was based on each company's Patent Asset Index, a proprietary metric from LexisNexis that identifies the strength and value of each company’s patent assets based on factors such as patent quality, geographic scope and size of the portfolio.
Houston tied with Austin, each with three companies represented on the list. Caris Life Sciences, a biotechnology company based in Dallas, claimed the top spot with a Patent Asset Index more than 5 times that of its next competitor, Apptronik, an Austin-based AI-powered humanoid robotics company.
“Texas has always been fertile ground for bold entrepreneurs, and these innovative startups carry that tradition forward with strong businesses based on outstanding patent assets,” Marco Richter, senior director of IP analytics and strategy for LexisNexis Intellectual Property Solutions, said in a release. “These companies have proven their innovation by creating the most valuable patent portfolios in a state that’s known for game-changing inventions and cutting-edge technologies.We are pleased to recognize Texas’ most innovative startups for turning their ideas into patented innovations and look forward to watching them scale, disrupt, and thrive on the foundation they’ve laid today.”
This year's list reflects a range in location and industry. Here's the full list of LexisNexis' 10 Most Innovative Startups in Texas, ranked by patent portfolios.
Fervo Energy fully contracted its flagship 500 MW geothermal development, Cape Station, this spring. Cape Station is currently one of the world’s largest enhanced geothermal systems (EGS) developments, and the station will begin to deliver electricity to the grid in 2026. The company was recently named North American Company of the Year by research and consulting firm Cleantech Group and came in at No. 6 on Time magazine and Statista’s list of America’s Top GreenTech Companies of 2025. It's now considered a unicorn, meaning its valuation as a private company has surpassed $1 billion.
Meanwhile, HighRadius announced earlier this year that it plans to release a fully autonomous finance platform for the "office of the CFO" by 2027. The company reached unicorn status in 2020.
The climate conversation is evolving — fast. It’s no longer just about emissions targets and net-zero commitments. It’s about capital, infrastructure, and execution at industrial scale.
That’s exactly where Yao Huang operates. A seasoned tech entrepreneur turned climate investor, Yao brings sharp clarity to one of the biggest challenges in climate innovation: how do we fund and scale technologies that remove carbon without relying on goodwill or government subsidies?
In this episode of the Energy Tech Startups Podcast, Yao sits down with hosts Jason Ethier and Nada Ahmed for a wide-ranging conversation that redefines how we think about decarbonization. From algae-based photobioreactors that capture CO₂ at the smokestack, to financing models that mirror real estate and infrastructure—not venture capital—Yao lays out a case for why the climate fight will be won or lost on spreadsheets, not slogans.
Her message is as bold as it is practical: this isn’t about saving the planet for the sake of it. It’s about building profitable, resilient systems that scale. And Houston, with its industrial base and project finance expertise, is exactly the place to do it.
The 40-Gigaton Challenge—and a Pandemic Pivot
Yao’s entry into climate wasn’t part of a long-term plan. It was sparked by a quiet moment during the pandemic—and a book.
Reading How to Avoid a Climate Disaster by Bill Gates, she came to two uncomfortable realizations:
The people in power don’t actually have this figured out, and
She would be alive to suffer the consequences.
That insight jolted her out of the traditional tech world and into climate action. She studied at Stanford, surrounded herself with mentors, and began diving into early-stage climate deals. But she quickly realized that most of the solutions she was seeing were still years away from commercialization.
So she narrowed her focus: no R&D moonshots, no science experiments—just deployable solutions that could scale now.
Carbon Optimum: Where Algae Meets Infrastructure
That’s how she found Carbon Optimum, a company using algae photobioreactors to remove CO₂ directly from industrial emissions. Their approach is both elegant and economic:
Install algae reactors next to major emitters like coal and cement plants.
Feed the algae with flue gas, allowing it to absorb CO₂ in a controlled system.
Harvest the algae and convert it into valuable commodities like bio-oils, fertilizer, and food ingredients.
It’s a nature-based solution, enhanced by engineering. One acre of tanks can capture emissions and generate profit—without subsidies.
“This is one of the few solutions I’ve seen that can scale profitably and quickly,” Yao says. “And we’re not inventing anything new—we’re just doing it better.”
The Real Problem? It’s Capital, Not Carbon
As an investor, Yao is blunt: most climate startups are misaligned with the capital markets.
They’re following a tech startup playbook—built for SaaS, not steel. But building climate infrastructure requires a completely different approach: project finance, blended capital, debt structures, carbon credit integration, and regulatory incentives.
“Climate tech is more like real estate or healthcare than software,” Yao explains. “You don’t raise six rounds of venture. You build a stack—grants, equity, debt, tax credits—and you structure your project like infrastructure.”
It’s not just theory. It’s exactly how Carbon Optimum is expanding—through partnerships, offtake agreements, and real-world deployments. And it’s why she believes many climate startups fail: they don’t speak the language of finance.
Houston’s Role in the Climate Capital Stack
For Yao, Houston isn’t just a backdrop—it’s a strategic asset.
The city’s deep bench of project finance professionals, commodity traders, lawyers, and infrastructure veterans makes it uniquely positioned to lead the deployment phase of climate solutions.
“We’ve been calling it the wrong thing,” she says. “This isn’t just about climate—it’s an energy transition. And Houston knows how to build energy infrastructure at scale.”
Still, she notes, the ecosystem needs to evolve. Less education, more execution. Fewer workshops, more closers.
“Houston could be the epicenter of this movement—if we activate the right people and get the right projects over the line.”
From Carbon Capture to Circular Economies
The potential applications of Carbon Optimum’s algae platform go beyond carbon capture. Because the output—algae biomass—can be converted into:
Renewable oil
High-efficiency fertilizers (critical in today’s geopolitically fragile supply chains)
Food ingredients rich in protein and nutrients
Even biochar, a highly stable form of carbon sequestration
It’s scalable, modular, and location-agnostic. In island nations, Yao notes, these systems can offer energy independence by turning waste CO₂ into local energy and fertilizer—without needing to import fuels or food.
“It’s not just emissions reduction. It’s economic sovereignty through circular systems.”
Doing, Not Just Talking
One of Yao’s key takeaways for founders? Don’t waste time. Climate startups don’t have the luxury of trial-and-error cycles stretched over years.
“Founders need to get real about what it takes to scale: talent, capital, storytelling, partnerships. If you’re not ready to do that, maybe you should be a CSO, not a CEO.”
She also points out that founders don’t need to hire everyone—they need to tap the right networks. And in cities like Houston, those networks exist—if you know how to motivate them.
“It takes a different kind of leadership. You’re not just raising money—you’re moving people.”
Why This Episode Matters
This conversation is for anyone who’s serious about scaling real solutions to the climate crisis. Whether you’re a founder navigating capital markets, an investor seeking return and impact, or a policymaker designing the frameworks — Yao Huang offers a grounded, urgent, and actionable perspective.
It’s not about hope. It’s about execution.
Listen to the full episode of the Energy Tech Startups Podcast with Yao Huang:
-- Hosted by Jason Ethier and Nada Ahmed, the Digital Wildcatters’ podcast, Energy Tech Startups, delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future.
