Will Tope, chief commercial officer of LiNa Energy, joined the Energy Tech Startups podcast to discuss the company's unique technology and growth plans. Photo via LinkedIn

In a world striving for sustainable and efficient energy solutions, United Kingdom-based LiNa Energy emerges as a promising player in the field of advanced battery technologies.

With a focus on overcoming the limitations of traditional lithium-ion batteries, LiNa Energy — a member of the 2023 cohort for Houston-based incubator, Halliburton Labs — presents a unique chemistry that holds the potential to revolutionize energy storage.

In a recent episode of Energy Tech Startups with Will Tope, chief commercial officer of LiNa Energy, we delve into the key aspects of LiNa Energy's technology, exploring the challenges they seek to address and their plans for commercialization.

Energy Tech Startups: What is the main problem that LiNa Energy is trying to solve with their battery technology?

Will Tope: LiNa Energy is driven by a pressing dilemma in today's storage landscape: the limited efficiency and high costs associated with existing storage technologies. They aim to bridge the gap, providing low-cost, long-duration energy storage solutions that can effectively accommodate the increasing penetration of renewable energy sources in power grids worldwide. By addressing this critical need, LiNa Energy aims to unlock the full potential of low-cost, low-carbon electrons for global energy consumption patterns.

ETS: How does LiNa Energy's battery technology differ from traditional lithium-ion batteries?

WT: LiNa Energy's technology distinguishes itself through its unique chemistry and progressive use of ceramics. By combining a stable sodium-based chemistry, developed in the 1970s, with advancements in ceramics from the fuel cell industry, LiNa Energy maximizes safety, heat management, and energy density. Their battery cells feature thin planar ceramic electrolytes, enabling cost-efficient automated manufacturing and reducing the need for extensive thermal management systems. This streamlined approach offers both enhanced performance and cost-effectiveness.

ETS: What are the commercialization plans and target markets for LiNa Energy?

WT: LiNa Energy strategically targets markets with high solar potential, such as India, where the demand for storage solutions arises due to the growing deployment of renewables and the need to shift energy to peak demand periods. LiNa Energy aims to demonstrate the effectiveness of their systems through pilot projects at distribution scale by the end of the year. Leveraging partnerships and strong relationships with key players in the energy industry, LiNa Energy envisions gradual growth in manufacturing capacity worldwide. By offering competitive pricing, they aim to disrupt the market and drive widespread adoption of their innovative battery technology.

As the energy landscape continues to evolve, LiNa Energy's pursuit of affordable, long-duration energy storage technology stands out as a potential game-changer. With their unique chemistry, ceramic advancements, and focus on commercialization in markets with enormous renewable energy potential, LiNa Energy demonstrates a commitment to addressing the world's energy challenges. By challenging the status quo of traditional energy storage systems, LiNa Energy paves the way for a future where efficient and sustainable energy solutions become the norm.

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This conversation has been edited for brevity and clarity. Click here to listen to the full episode.

Digital Wildcatters is a Houston-based media platform and podcast network, which is home to the Energy Tech Startups podcast.

EnergyTech Startups, a podcast co-hosted by two Houston clean energy experts, exists to shine a spotlight on innovative companies and Houston as a hub for energy transition businesses. Photo via Unsplash

Houston podcasters aim to showcase promising local energy tech startups

broadcasting innovation

Houston has a bit of a perception problem, according to Jason Ethier, a long-time energy tech innovator and new podcast host.

"Houston isn't viewed as a cool place to build a company if you don't know how good it is to be here," he says on the Houston Innovators Podcast.

Ethier, who serves as senior director of membership at Greentown Labs, set out to fix that when he launched the EnergyTech Startups podcast last fall with co-host Lara Cottingham, the vice president of strategy, policy, and climate impact at Greentown Labs. To date, the show has introduced listeners to over 20 energy founders and is continuing to do so on a biweekly basis.

"As an entrepreneur, sometimes you feel a gap in the market in your bones and you just have to do something about it," Ethier explains on the origin of the show.

Jason Ethier and Lara Cottingham co-host the EnergyTech Startups podcast. Photos courtesy

With his background in the Northeast, Ethier has seen first hand how Houstonians are just different — they tackle tough challenges and are heads-down focused on these innovations.

"Houston has a lot going for it as a place to build a business, and we're not going to do it the Silicon Valley. We do things the Houston way — we build new technologies, we build big projects," Ethier says. "The funny thing about Houstonians I find is that they are very understated with what they achieve and accomplish like it's no big deal. But it is a big deal."

That's where Ethier and the podcast can help shine a spotlight on the unique innovation these startup founders are in the process of commercializing.

"The premise of EnergyTech Startups is that we're building an energy ecosystem here, and energy and climate are two sides of the same coin," he says. "People working on these energy technologies made the choice to come to Houston — they made the choice not to go to Silicon Valley or Boston."

The goal is twofold — give these startups the platform to tell their story and showcase Houston as the hub for energy innovation.

"How do we tell this Houston story so that whenever folks look at the map and say, 'where do I want to build my business?' they look at Houston and see it as a place they should end up," he says.

Listen to the full episode of the Houston Innovators Podcast with Jason Ethier.

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Houston geothermal company closes $13M in investments to fuel growth

fresh funding

XGS Energy, a California-headquartered geothermal power company with a major presence in Houston, has closed $13 million in new financing that included new investors Aligned Climate Capital, ClearSky, ClimateIC and WovenEarth Ventures, in addition to inside investors.

The company plans to “aggressively expand” its team in Houston this year, according to a news release.

“We are facing global energy supply challenges of unprecedented scale and urgency,” Kevin Kimsa, Managing Partner at ClimateIC, said in the release. “The XGS team is uniquely primed to meet the moment, bringing together innovative technology and leading engineering talent with the deep experience in infrastructure development and financing critical to deploying large-scale energy systems at speed.”

As part of the financing deal, Mano Nazar, ClearSky Senior Advisor and the former Chief Nuclear Officer of NextEra Energy, will join the XGS Energy Board of Directors.

“XGS’s advanced geothermal technology is uniquely positioned to deliver abundant energy to the grid faster than any other baseload energy technology at a time of unprecedented demand for energy resources,” Nazar said in a news release. “We are excited to partner with XGS to deliver on their mission of sustainable, reliable, and scalable geothermal energy.”

XGS is known for its next-gen closed-loop geothermal well architecture. The company saw massive growth in the Houston market last year and recently completed a 100-meter field demonstration in central Texas. The new funding supports the XGS’s multi-gigawatt project pipeline.

The recent financing also builds on an oversubscribed Series A round led by Constellation Technology Ventures, VoLo Earth Ventures, and Valo Ventures that closed last year.

Here are 10+ must-attend Houston energy transition events for Q2 2025

On the Agenda

Editor's note: Spring is here, and this quarter is packed with must-attend events for those in the energy transition sector. Houston plays host to myriad summits, conferences, and expos that you won't want to miss. Mark your calendars and begin registering today. Please note: this article may be updated to include additional events.

March 31-April 2 — World Hydrogen North America 2025

Seize the opportunity to connect with industry leaders from across the hydrogen value chain, fostering long-term business partnerships and exploring potential collaborations. Engage with prominent off-takers, both nationally and internationally, and gain first-hand insights into the latest projects shaping the future of hydrogen in the USA and Canada.

This event begins March 31 at the Marriott Marquis. Click here to register.

April 1-2 — 8th Annual LNG Summit USA

The LNG Summit USA brings together leaders in the LNG sector, who in turn bring solutions to glaring industry challenges. The event addresses key challenges and opportunities within the LNG industry and the broader energy landscape. The conference will also provide insights into alternative energy options that could potentially replace or complement LNG.

This event begins April 1. Click here to register.

April 17 — 2025 UH Energy Symposium Series on Plastics Circularity

Celebrating its 12th year, the UH Energy Symposium Series tackles critical issues impacting the energy sector. This year’s focus on plastics circularity will bring together industry leaders, researchers, and visionaries to explore the intersection of plastics, sustainability, and energy.

This event begins at 8 am on April 17 at UH Student Center South. Click here to register.

April 28-30 — PPDM Energy Data Convention Houston 2025

This flagship conference is dedicated to exploring the latest advancements and trends in energy data, offering opportunities for networking, knowledge exchange, and collaboration. Gain insights into cutting-edge data management practices and how they can enhance operational efficiency, support strategic decision-making, and contribute to achieving long-term objectives. Highlights include keynote presentations from renowned experts, interactive panel discussions, hands-on workshops, and an exhibitor showcase.

This event begins April 28 at Norris Conference Center. Click here to register.

May 12-15 — Enverus Evolve Conference

Staying ahead of the curve in the energy sector is critical. This conference is designed to equip energy leaders with foresight in the energy market, providing cutting-edge technological know-how, sessions and networking opportunities industry leaders, and offering practical guidance on how to apply technology to solve big problems.

This event begins May 12 at Hilton Americas Houston. Click here to register.

May 27-28 — 6th American LNG Forum

Join LNG industry professionals, innovators, and policymakers to discover groundbreaking technologies that are driving the future of liquified natural gas. Topics will include market dynamics and decarbonization strategies, offering attendees the chance to connect, learn, and become part of the LNG revolution.

This event begins May 27 at the Westin Galleria Houston. Click here to register.

May 28-30 — CHARGE North America

This intimate, immersive experience is tailored to forward-thinking energy professionals. The conference includes hands-on interactive workshops led by top strategists; real-world case studies; and insights from leading speakers on resilient branding, consumer expectations, and climate action. Attendees will engage in panel discussions on sustainability and energy diversification and enjoy exclusive networking opportunities with global executives and innovators.

This event begins May 28 at The Ion. Click here to register.

May 29-30 — 5th Annual American Hydrogen Forum

Connect with hydrogen industry leaders, innovators, and policymakers at the American Hydrogen Forum. Discover groundbreaking technologies and strategies focusing on hydrogen fuel cell technology, hydrogen energy, and low-carbon hydrogen solutions.

This event begins May 29 at the Westin Galleria Houston. Click here to register.

June 4-5 — 2025 AWS Energy Symposium

The fourth annual AWS Energy Symposium is the premier AWS event for the energy industry. Hear from leading energy and utility customers, partners, and startups about how they're using AWS to scale innovation and transform their organizations. The event is invitation only and is geared toward senior leaders and director-level executives from across the energy value chain. Click here to submit a registration request.

June 11-12 — Energy Projects Conference & Expo

The Energy Projects Conference & Expo (EPC Show) is the largest event in North America for professionals working at the heart of major energy projects. The show will bring together five leading conferences under one roof for the first time, uniting 3,000-plus engineering, construction, commissioning, supply chain, operations, and maintenance professionals. Conference subjects span LNG exporting, hydrogen and ammonia, midstream, petrochem and refining, and sustainable aviation fuels.

This event begins June 11 at the George R Brown Convention Center. Click here to register.

June 25-26 — Carbon Capture Technology Expo

Tackling climate change is one of the biggest global challenges that requires immediate action, and many industrial sectors are now looking to new technology to help meet net-zero emission targets. The Carbon Capture Technology Expo is North America's leading event for carbon capture, utilization, and storage. The expo offers opportunities to network with industry frontrunners and best-in-class solution providers.

This event begins June 25 at NRG Center. Click here to register. It is co-located with the Hydrogen Technology Conference & Expo North America. Expo passes are free.


8 Houston energy companies land on Time's top greentech list for 2025

top honor

The accolades keep rolling in for Houston-based Fervo Energy, a producer of geothermal power.

Fervo lands at No. 6 on Time magazine and Statista’s new list of America’s Top GreenTech Companies of 2025. The ranking recognizes sustainability-focused companies based on factors such as impact, financial strength, and innovation.

Time notes that Fervo broke ground in 2023 in Utah on what the company claims will be the world’s largest geothermal plant. The plant is scheduled to start supplying carbon-free electricity to the grid next year and to reach its 400-megawatt capacity in three years.

“Technologies like this only make a difference if we deploy them at large-scale in a way that can reduce carbon emissions and increase the reliability of the grid,” Fervo CEO Tim Latimer told Time in 2023.

The startup was named North American Company of the Year by research and consulting firm Cleantech Group for 2025. Fervo topped the Global Cleantech 100, Cleantech Group’s annual list of the world’s most innovative and promising cleantech companies.

Last year, Fervo also made Time’s list of the 200 Best Inventions of 2024. Fervo was recognized in the green energy category for its FervoFlex geothermal power system.

Founded in 2017, Fervo is now a unicorn, meaning its valuation as a private company exceeds $1 billion. The startup’s valuation is estimated at $1.4 billion. According to PitchBook data, the company raised $634 million in the fourth quarter of 2024.

In all, eight Houston-area companies appear among the top 250 greentech companies ranked by Time and Statista. Other than Fervo, they are:

  • No. 43 Lancium Technologies, an energy storage and distribution company
  • No. 50 Solugen, a producer of sustainable chemicals.
  • No. 56 Quaise Energy, which specializes in terawatt-scale geothermal power.
  • No. 129 Plus Power, a developer, owner and operator of battery storage projects.
  • No. 218 Dream Harvest, which promotes sustainable vertical farming.
  • No. 225 Cemvita, which uses synthetic biology to convert carbon emissions into bio-based chemicals.
  • No. 226 Syzygy Plasmonics, which decarbonizes chemical production.
Vermont-based BETA Technologies claimed the No. 1 spot. The company manufactures electric aircraft.