Houston energy storage startup secures $10M in federal funding

seeing green

Houston-based Quidnet Energy has secured funding from a Department of Energy program. Image via quidnetenergy.com

A Houston-based company that's got a solution to renewable energy storage secured funding from a federal entity.

The U.S. Department of Energy Advanced Research Projects Agency-Energy, or ARPA-E, is granting Quidnet Energy $10 million in funding, the Houston company announced in November. The funding is a part of the ARPA-E Seeding Critical Advances for Leading Energy technologies with Untapped Potential, the SCALEUP program. This initiative is aimed at providing funding to previous ARPA-E teams "that have been determined to be feasible for widespread deployment and commercialization domestically," per a news release.

“We’re honored that ARPA-E has selected Quidnet Energy as an awardee of the SCALEUP program,” says Joe Zhou, CEO of Quidnet Energy, in the release. “This funding will support continued work on our Geomechanical Pumped Storage (GPS) project with CPS Energy, which will demonstrate the benefits of using proven pumped hydro technology to create a long-duration energy storage resource that doesn’t require mountainous terrain. We look forward to continuing our partnership with CPS Energy and thank ARPA-E for acknowledging the potential of GPS for long-duration storage.”

The company's technology can store renewable energy for long periods of time in large quantities. The process includes storing pressurized water underground and, when the stored energy is needed, the water propels hydroelectric turbines and produces the electricity to support the grid at a fraction of the cost, per the news release. The concept is similar to existing gravity-powered pumped storage, but with less land required.

The fresh funding will be used toward Quidnet Energy’s ongoing project with San Antonio-based utilitary provider CPS Energy. This collaboration is scaling the company's GPS to a 1 MW/10 MWh commercial system, per the release, that will provide CPS Energy with over 10 hour long-duration energy storage system.

In 2020, Quidnet closed its $10 million series B financing round and secured a major contract with the New York State Energy Development Authority. The series B round included participation from Bill Gates-backed Breakthrough Energy Ventures and Canada-based Evok Innovations, which both previously invested in the company, as well as new investors Trafigura and The Jeremy and Hannelore Grantham Environmental Trust.

------

This article originally ran on InnovationMap.

Houston-based Zeta Energy has fresh funding from the government. Image via Zeta Energy

Houston-based battery innovators receive $4M in federal funding

money moves

Houston-based Zeta Energy announced this week that it was selected to receive $4 million in federal funding for the development of efficient electric vehicle batteries.

The funds come from the U.S. Department of Energy's ARPA-E Electric Vehicles for American Low-Carbon Living, or EVs4ALL, program, which aims to increase the number of EVs on the roads by boosting the country’s supply chain of affordable, convenient, reliable and safe batteries.

Zeta Energy is one of 12 groups in the U.S. to receive funding from the program, which awarded $42 million in total.

“Electric vehicle sales in America have tripled since the start of this Administration and by addressing battery efficiency, resiliency and affordability, the projects announced today will make EVs attractive to even more drivers,” U.S. Secretary of Energy Jennifer M. Granholm said in a statement released in January. “This is a win-win for our efforts to fight climate change and power America’s clean transportation future with technologies produced by researchers and scientists right here at home.”

Other teams to receive funding include 24M Technologies, national laboratories and universities like The Ohio State University, University of Maryland, Virginia Tech, among others. Zeta is the only Texas-based company to receive funds. It received one of the largest grants among the group.

"We are thrilled to have been selected for funding by the ARPA-E EVs4ALL program," Zeta Energy CEO Tom Pilette said in a statement. "We have been working hard to make this technology a reality, and we are really grateful to receive this recognition of the promise of our technology and the progress we have made on it."

Zeta Energy is known for its lithium sulfur batteries that traditionally have not been long lasting. While sulfur is an economical and abundant material, it traditionally would dissolve after a few uses in lithium sulfur batteries.

However, Zeta uses its proprietary sulfur-based cathodes and lithium metal anodes that have shown to have higher capacity and density and better safety profiles, according to the company's website.

According to ARPAE, the company will create a new anode that will "be highly accessible and rechargeable" with the funding.

Zeta Energy closed a $23 million series A round led by New York VC firm Moore Strategic Ventures about a year ago. In addition to applications for electric vehicles, the company's technology is also expected to have uses in grid energy storage.

------

This article originally ran on InnovationMap.

Ad Placement 300x100

Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Houston carbon removal company secures $35M in financing

national scale

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion.

U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies.

The financing will support new waste disposal sites for Vaulted Deep and advancements of the company’s AI-enabled site development platform. The platform helps identify locations, navigate permitting and optimize injection operations. When candidates are looking for sites, the platform will pull from regulatory, geology and waste-supply data to assist, which Vaulted Deep says will help streamline the permitting process. After the site is operating, the platform helps control algorithms to maximize safe disposal capacity and monitor the process along the way.

"Waste operators across the country need new options as traditional disposal options become limited,” Julia Reichelstein, CEO and co-founder of Vaulted Deep, said in the release. “This financing lets us take on more projects and invest in the tools that help us evaluate and develop new sites faster. This is a meaningful milestone for Vaulted as we move into the next phase of building infrastructure at a much larger scale."

The deal is supported by Vaulted Deep's long-term waste service and carbon removal purchase contracts. The company says it delivered more than 20,000 tons of carbon removal to buyers in the first half of 2026, which is more than it delivered in all of 2025.

"By facilitating these types of transactions, we connect institutional capital with innovative climate technologies, helping accelerate the deployment of high-integrity carbon removal solutions,” Tyler Manchester, head of voluntary carbon for CFP Energy, added in the release. “It reflects growing investor confidence in these solutions, driven by rising demand from corporate buyers seeking permanent pathways to support net-zero commitments and long-term climate strategies."

Beyond the facility, Vaulted Deep has secured $48 million in equity financing in addition to its $8 million from the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation.

The company's well injection technology is used to store organic waste deep underground in stable geologic formations. In 2025, it inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Houston's power future report and more top energy transition headlines

Hot News

Editor's note: It's time to look back at the top Houston energy transition news in recent weeks, from a report that examines Houston's power future, to exciting funding raises for a local startup and a member of a local incubator. Here are the five most-read EnergyCapitalHTX stories from September 16-30, 2026:

Houston’s power future: The role of energy efficiency and demand response

A new report from the Houston Energy Transition Initiative, “Role of Efficiency & Demand Response to Meet Near-Term Regional Power Demand,” examines how Houston can get more from the grid it has today. Its central finding: energy efficiency (EE) and demand response (DE) can create measurable grid “headroom” while new major infrastructure projects are being planned, financed, permitted and built. Explore the key takeaways from the report. Continue reading.

ExxonMobil secures approval for $5B East Texas carbon capture project

Spring-based ExxonMobil has won approval from the Texas Railroad Commission for a $5 billion carbon capture and storage project in East Texas. The project will enable the company to inject about 53 metric tons of industrial customers’ carbon emissions into three underground wells it drilled in the Beaumont-Port Arthur area. Over a 13-year period, ExxonMobil plans to inject about 4 million metric tons per year into the Fleming and Upper Frio rock formations, according to Carbon Herald. Continue reading.

Houston-based ‘grid in a box’ provider Branch Energy raises $33M

Houston-based startup Branch Energy, which offers a self-contained “grid in a box,” has collected $33 million in a Series B round. Piva Capital and Clean Energy Ventures led the round. Active Impact Investments, Whitecap Venture Partners, Prelude Ventures, Zero Infinity Partners and Inovia Capital also contributed to the round. In 2024, Branch raised $10.8 million in an oversubscribed Series A round. Continue reading.

Kanin Energy raises up to $100M for waste-heat-to-power projects

Kanin Energy, a member of the Greentown Labs climatech and energy incubator in Houston, recently raised as much as $100 million in capital to grow its energy-as-a-service platform. S2G Investments led a round of up to $50 million, and the Canada Growth Fund chipped in an additional $50 million. The money will primarily support Kanin’s development and operation of waste-heat-to-power projects. Continue reading.

Houston-based ENGIE wins national award for clean energy leadership

Houston-based ENGIE has been recognized for its work in the clean energy space. The battery storage and energy infrastructure company recently won the 2026 Green Power Leadership Award in the Market Innovation category for its work advancing 24/7 renewable energy solutions. The awards honor individuals and companies advancing sustainability and renewables in the energy industry through innovation and leadership. Continue reading.

8+ must-attend Houston energy transition events in October 2026

Must-Attend Meetings

Editor's note: October is here, and there are many energy events to plug into in Houston this month. From summits and forums to exhibitions and networking opportunities, these are the top events to put on your calendar. Learn more below, and register now.

Oct. 6-7: Hydrogen Americas Summit and Exhibition

Hydrogen Americas delivers an unparalleled opportunity to explore how hydrogen integrates with CCUS and other energy solutions under the new U.S. and Americas energy paradigm. This event moves to Houston in 2026, providing unmatched access to industry leaders and opportunities. The summit will include CCUS dedicated sessions integrated directly into the conference programming, providing deeper insights into carbon capture, utilization, and storage. Look forward to networking opportunities to connect with global suppliers, regional developers, and key policymakers.

This event begins Oct. 6 at George R. Brown Convention Center. Register here.

Oct. 6-7: Annual Energy Summit — Energy, Risk, and Geopolitics

The 10th annual energy summit is co-hosted by Baker Botts and the Center for Energy Studies at Rice University's Baker Institute. This year's summit, “Energy, Risk, and Geopolitics,” will explore how a changing geopolitical landscape and shifts in supply chain risks are impacting investment, innovation, and market dynamics. The two-day program will include discussions spanning petroleum and LNG markets, critical minerals, electricity reliability, AI, and power demand.

This event begins Oct. 6 at 7:30 am at James A Baker III Hall. The event will also be livestreamed. Register here.

Oct. 7: Industrial Data Forward Forum 2026

Houston continues to sit at the intersection of energy, chemical production, and advanced manufacturing. Industrial data experts, automation engineers, and enterprise architects will gather for this one-day forum to address one of the region's biggest operational challenges: modernizing massive, legacy industrial plants without incurring high costs.

This event takes place Oct. 7 at Norris Conference Center. Register here.

Oct. 14: Houston Engineering, Energy & Transportation Networking Event

Connect with leading engineers, energy experts, environmental innovators, and transportation professionals during an evening of collaboration, insight, and opportunity. This exclusive event is designed for engineers, project developers, renewable energy specialists, urban planners, environmental consultants, and infrastructure leaders eager to expand their networks, exchange ideas, and explore solutions driving the future of sustainable development.

This event takes place on Oct. 14 at 7 pm at SOHO Garden. Get tickets here.

Oct. 14: Future of Global Energy Conference

This October, the sixth annual Future of Global Energy Conference kicks off, convening influential leaders from across energy, technology, finance and public policy who will come together to explore the forces defining the next era of global energy and Houston’s role in shaping it. Ryan Lance, Executive Chairman of ConocoPhillips and 2027 Chair of the Greater Houston Partnership’s Board of Directors, is the keynote speaker, bringing a global perspective on rising demand, market volatility and Houston’s role in the next era of energy growth.

This event takes place Oct. 14 at Marriott Marquis. Register here.

Oct. 17: Energy Day 2026

Energy Day Houston is the nation’s largest free, family-friendly STEM festival. It features over 50 interactive exhibits and live demonstrations focused on traditional and emerging energy career paths to power up your curiosity.

This event begins at 11 am on Oct. 17 at Sam Houston Park. Get details here.

Oct. 22: Geophysical Society of Houston Fall Forum

This one-day event will explore how geophysics continues to drive value in hydrocarbon development while opening new opportunities in geothermal, critical minerals, mining, microseismic monitoring, and other emerging subsurface applications. The forum will highlight both the technologies and business strategies needed to succeed in a rapidly evolving energy landscape.

This event begins at 7 am on Oct. 22 at SLB. Get details here.

Oct. 28-29: Energy Council Houston 2026

Energy Council Houston is a private executive forum for leaders across the U.S. upstream oil and gas sector. Over two days, operators, investors, financiers, and strategic partners will come together to discuss the issues shaping capital allocation, energy security, M&A activity, and energy investment across North America.

This event begins Oct. 28 at the Four Seasons Hotel Houston. Register here.

View All Listings

ENERGYCAPITALHTX EMAILS ARE AWESOME