City offers free composting services to Houstonians looking to reduce landfill contributions

do your part

Looking to start composting? This is your month to try it out with free drop-off spots in Houston. Photo via Getty Images

The City of Houston Solid Waste Management Department is launching a free Food Waste Drop-Off pilot program through the end of February.

The program is in collaboration with Council Member Sallie Alcorn, Zero Waste Houston and the City of Houston Health Department, and allows residents to drop off food scraps at four different locations. The locations are:

Kashmere Multi-Service Center, Mondays from 2 to 5 pm
Acres Homes Multi-Service Center, Tuesdays from 2 to 5 pm
Alief Neighborhood Center, Wednesdays from 4 to 7 pm
Sunnyside Multi-Service Center, Thursdays from 3 to 6 pm

Houston residents, businesses, and institutions generate 6.2 million tons of municipal solid waste per year according to the Solid Waste Department program.

“You’ll find when you start composting your food scraps, there is a lot less trash generated in your home, at your curb, and taken to the landfill,” Alcorn says in a news release.

The Solid Waste Management Department provides solid waste services with the collection, disposal, and recycling of discarded material in an environmentally-friendly and cost effective way.

“The Solid Waste Department is eager to continue to provide innovative programs that divert waste from the landfill and actively engage Houston residents,” says Mark Wilfalk, Director of Solid Waste Management in the release.

Houston Methodist has several ongoing and future initiatives dedicated to reducing the hospital system's carbon footprint. Photo via HoustonMethodist.org

How this Houston hospital is leading sustainable health care

seeing green

The United States health care sector contributes around 8.5 percent of greenhouse gas emissions, and one Houston hospital is committed to doing its part in reducing the industry's carbon footprint.

Houston Methodist, which recently opened a new tech hub in the Ion in midtown, has put in place several initiatives that reflect a more sustainable future for health care. The organization, which has seven hospitals in the Houston area, revealed some of these ongoing and planned projects at a recent event.

"Houston Methodist is always looking ahead on ways — not only of how we are taking care of patients — but what are we doing to create this environment and making the right efforts for sustainability, which we should all be doing," Michelle Stansbury, vice president of innovation and IT applications at Houston Methodist, says on this week's episode of the Houston Innovators Podcast. "We have to protect this environment that we have or it may not be the same for our children going forward."

The hospital system is currently in the design phase for installing solar panels on the Josie Roberts Administration Building in the Texas Medical Center. This project, in partnership with Houston Methodist's Energy and Facilities workgroup, will be the first step toward renewable energy consumption for the hospital.

Houston Methodist has already rolled out food composting initiatives at its locations in Sugar Land, The Woodlands, and Willowbrook locations — with plans for additional campuses to follow. According to a presentation from Jason Fischer, director of the Office of Sustainability at Methodist, the hospital system has already diverted nearly 100,000 lbs. of food waste from landfills.

Preventing waste recycling or reusing items is another focus of Houston Methodist, Stansbury says, from creating a workflow that enables reusing items that are able to be sanitized rather than thrown away to sustainably getting rid of expired materials. The U.S. has rules about the shelf lives of health care products, but other countries don't have as strict of mandates.

"We're sending (supplies) to other countries that can still use these products," Stansbury explains. "Knowing that we're helping to care for other individuals, to me I think it's very valuable. Other countries don't have the resources that the United States does."

Another notable initiative is incorporating greenspace for patients to enjoy. Houston Methodist is currently in construction on a 26-story hospital tower in the Texas Medical Center that will feature the Centennial Rooftop Garden on the 14th floor.

The Houston Methodist's sustainability team has several other initiatives both ongoing and in the works. More information is available on the hospital's website.

Centennial Tower’s 14th floor will feature an outdoor rooftop garden. Rendering courtesy of Houston Methodist

By opting into composting, Moonshot customers are avoiding contributing to landfill methane emissions. Photo via Moonshot Compost/Facebook

Houston sustainability startup increases Texas impact, diverts 3.5M lbs of landfill waste

the power of composting

Houston-based Moonshot Compost is marking its three-year anniversary this month, demonstrating a successful execution of a sustainable waste management model.

Chris Wood and Joe Villa started the company in July 2020, collecting and measuring food waste in their personal vehicles. Today, Moonshot operates with a team of drivers utilizing its data platform to quantify the environmental benefits of composting.

“People like to compost with us,” Wood said. “When we first started, I don't think we ever thought we would get to so much weight so quickly. We've diverted over 3.5 million pounds of food waste since we launched, and our rate of collection is about 250,000 pounds a month now.”

Moonshot ensures every collection is weighed to calculate its precise impact. Its proprietary system uses QR codes, allowing users to understand both their individual and collective contribution to the composting effort.

Despite starting in the midst of the COVID-19 pandemic, the service has solidly grown. Currently, Moonshot serves 65 commercial and over 600 residential subscribers across Houston, Austin, Dallas, and Waco.

One of Moonshots significant achievements is its Diversion Dashboard, which presents the climate equivalencies of the diverted food waste, highlighting how composting contributes to the reduction of greenhouse gases.

"By composting, you're avoiding landfill methane emissions, which constitute 10 percent of global greenhouse emissions," Wood said.

Moonshot offers subscription programs for both residential and commercial clients. The residential subscription includes a drop-off option for $10 per month or an at-home pick-up service for $29 per month. Each pick-up includes a clean bin exchange. For commercial clients, the base fee is $110 per month, with weekly pick-ups and bin exchanges.

The company's next significant milestone, Wood said, is to divert 5 million pounds of food waste in Houston. As of now, Moonshot expects to reach its 5 million pound goal by mid-2024.

“We think that Houston is sending 5 million pounds of food waste to the landfill every day,” Wood said. “Once we've diverted 5 million pounds in Houston, that'll be the first time that we've diverted a day's worth of food waste in Houston.”

As part of Moonshots most recent compost result update, Moonshot subscribers based in Houston have diverted 3,444,704 pounds of waste from landfills and saved 2,328,366 pounds of carbon dioxide. Visit here for more information on its impact across Austin, Dallas and Houston.

Wood emphasized the importance of changing perceptions on composting: "It’s not disgusting. You already generate food waste at home and work. Composting makes your trash cleaner."

With this mission, Moonshot Compost continues to transform perceptions and practices around waste management and sustainability.

Chris Wood and Joe Villa started the company in July 2020. Photo via Moonshot Compost/Facebook

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Houston startup wins Space Force contract to advance quantum energy generator

quantum contract

Houston-based quantum energy technology startup Casimir Inc. has been awarded an STTR Phase I contract from the U.S. Space Force's SpaceWERX to support the development of the company's solid-state generator for potential use by the Department of the Air Force.

SpaceWERX is the innovation arm of the U.S. Space Force and a division within AFWERX, the incubator and innovation arm of the United States Department of the Air Force. The Air Force Research Laboratory and SpaceWERX, along with many other government agencies, help support innovation through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) grants and contracts.

As part of the new contract, Casimir will work to refine a fully independent generator. Casimir’s solid-state power technology could support national security missions by providing reliable power even in difficult-to-service environments.

In May, Casimir emerged from stealth, netting a $12 million seed round to commercialize its quantum energy chip. The semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company aims to include the chips in large-scale energy systems that can power homes, commercial infrastructure and electric vehicles.

“This STTR funds some analysis work to address our proposed scaling approach of making our chips multi-layer to increase aggregate power,” Harold “Sonny” White, founder and CEO of Casimir, tells Energy Capital.

White adds that the company will work with Texas A&M to develop chip planarization techniques to support Casimir’s plans to scale. Additionally, White says the company is working with the U.S. Space Force to explore more applications for its technology.

“Casimir’s technology brings a new capability to the market in the form of our persistent power chips,” White adds. “This approach will be relevant to ultra-low-power electronics, and with the scaling approach we are developing, connected with the STTR work, will eventually be relevant to consumer electronics and beyond.”

Casimir has previously reported that it plans to commercialize its first-generation MicroSparc chip by 2028. The chips are expected to power devices for years without the need for replacements.

The total funding for this project has not yet been disclosed.

Houston clean energy tax compliance platform tops the Inc. 5000 in 2026

Top of the List

Houston-based Empact Technologies has ridden the clean energy wave to the Inc. 5000’s 30 fastest-growing private companies.

With three-year revenue growth of 8,275 percent, the clean energy tax credit compliance management platform appears at No. 27 on this year’s Inc. 5000 list. The 2026 list ranks private companies based on percentage revenue growth from 2022 to 2025.

Empact Technologies, also ranks as the No. 2 fastest-growing company in Houston and the No. 4 fastest-growing company in Texas.

Originally founded by Charles Dauber in 2012, Empact Technologies relaunched in 2023 as a purpose-built tool for clean energy tax credit compliance, following the creation of the Inflation Reduction Act, the largest clean energy investment incentive in U.S. history.

It provides a platform for clean energy developers, investors, and contractors, and combines its NexusIQ AI-native compliance platform with a dedicated team of technical and regulatory experts to ensure ongoing compliance and documentation.

Empact Technologies is joined by six other Houston-area companies in the top 250 of this year's Inc. 5000, including one that made the top 10.

Here are the six other Houston-area companies that claimed spots in the top 250 on the Inc. 5000 list. Each company name is followed by its ranking, headquarters city, and three-year growth rate.

No. 6 Equipe Realty, 23,210 percent
No. 60 Action1, 4,512 percent
No 75 Signs By G, 3,684 percent
No. 79 The ’Pause Life, 3,469 percent (Galveston)
No. 110 Turtlebox Audio, 2,576 percent
No. 178 Dahnani Private Equity Group, 1,904 percent (Stafford)

Empact and fellow honorees will be recognized Oct. 14-16 at the 2026 Inc. 5000 Conference & Gala in Dallas.

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A version of this article first appeared on InnovationMap.com.

Sage Geosystems brings South Texas geothermal plant online

powering up

Houston-based Sage Geosystems, a provider of geothermal power, has begun full operations at its South Texas facility for the San Miguel Electric Cooperative.

Sage says the plant was recently “placed in service,” according to a news release. This means it’s fully built and tested, and ready to generate and supply electricity to the grid.

Since selling its first electricity in Q2 of this year, the facility has been operating for more than four months to evaluate aspects like efficiency and water management. Sage relied on its GeoTwin modeling tool to carry out some of the testing.

The testing demonstrates Sage’s proprietary approach to geothermal power “overcomes one of the industry’s most persistent challenges, high water losses in engineered reservoirs, while delivering the consistent performance required to scale next-generation geothermal,” co-founder and CEO Cindy Taff said in the release.

Sage says the South Texas facility will serve as a model for future projects, including one in Nevada. The Nevada facility will use Sage’s proprietary technology to extract geothermal heat from hot dry rock, creating a reliable, affordable source of carbon-free power.

During the testing period, water losses amounted to less than 10 percent. This low rate indicates most water remains in the system, enabling Sage to capture more usable energy, boost power production and improve the project’s finances, the company says.

“Commercial geothermal isn’t just about creating a reservoir. It’s about creating one whose performance can be engineered, predicted, and consistent,” Lev Ring, the company’s co-founder, president and chief technology officer, said in the release.

Since being founded in 2020, Sage has raised $159 million in outside funding. This includes a more than $97 million Series B round co-led by Ormat Technologies and Carbon Direct Capital.

Two years ago, Sage announced a deal with Meta Platforms, the parent company of Facebook and Instagram, to supply up to 150 megawatts of geothermal power to Meta data centers.

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