Founded in 2023, MadXR is a Houston-based Extended Reality startup. The innovative company specializes in safety training experiences for the energy sector and beyond. From pre-built virtual reality training modules to custom developed, end-to-end XR solutions, MadXR creates interactive, lifelike virtual reality and augmented reality experiences that allow trainees to practice safety procedures in a controlled environment.

Houston Energy Transition Initiative recently connected with Miranda Palmisano, CEO of MadXR, to discuss the applications and benefits of XR—and how it can help energy companies reduce HSE risk and carbon intensity like never before.

HETI: You were at Chevron for nearly 10 years before MadXR. How did your experiences at Chevron shape your approach to starting and running your own company?

Miranda Palmisano: Prior to founding MadXR, I held many different roles at Chevron across upstream and downstream. As the Connected Worker Product Manager, I drove digital acceleration for our global field and maintenance teams in refineries, terminals, and manufacturing sites, elevating efficiency and safety. During that time, I began exploring the value case of VR across Chevron.

I formed the Extended Reality Team and shortly became the Extended Reality Product Manager. Our team began using VR to conduct safety training within a virtual environment. It allowed us to train Chevron’s workforce safer and more efficiently by providing hands-on experience without the risk of real-world errors.

HETI: What inspired you to start your own company?

MP: Extended reality is an exciting new technology, and I quickly discovered the growing need for flexible, cost-effective XR content development in relation to life-saving-action training, such as confined-space entry, lockout/tagout procedures, and working from heights. I believe that affordable and high-quality XR experiences should be accessible to all companies, regardless of budget. That’s why MadXR has transparent pricing options that range from pre-built VR training modules to turnkey teams—and we empower our customers to take full ownership of their content and assets.

HETI: How has being based in Houston helped MadXR?

MP: The network in Houston is unmatched. In the energy capital of the world, it’s much easier to access the companies we’re targeting and hire the talent we need to grow. Innovation hubs like Houston’s Ion District have given us the resources and opportunities to connect with a vast number of forward-thinking businesses.

HETI: Do you believe XR will be instrumental in helping companies reach low carbon or net zero goals?

MP: XR is poised to revolutionize the energy industry, offering unprecedented opportunities for efficiency, engagement, and environmental sustainability. Imagine donning a headset and virtually navigating a facility halfway across the globe in real-time, or preparing your entire team with comprehensive virtual training before they physically enter a site. These scenarios highlight XR’s potential to enhance operational efficiency and employee engagement significantly. Beyond the immediate benefits, XR also plays a crucial role in reducing carbon emissions by eliminating the need for unnecessary travel. This technology isn’t just about improving current processes; it’s about reimagining the future of energy industry operations in a more sustainable, efficient, and engaging way.

HETI: MadXR will be celebrating its first anniversary in April. Can you tell us more about your vision for the future and what you’re focused on in 2024?

MP: In 2023, we were focused on ramping up and generating awareness. This year, we’re dedicated to expanding our reach and impact. We plan to incorporate AI into our learning modules and XR development to make them even more informational and interactive.

While our primary focus is on energy, we’re exploring how we can extend XR training to other industries, including automotive, healthcare, and pharmaceuticals.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

To learn more about MadXR’s mission and XR training modules, visit MadXR.

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Houston geothermal company raises $97M Series B

fresh funding

Houston-based geothermal energy startup Sage Geosystems has closed its Series B fundraising round and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource.

“Pressure geothermal is designed to be commercial, scalable and deployable almost anywhere,” Cindy Taff, CEO of Sage Geosystems, said in the news release. “This Series B allows us to prove that at commercial scale, reflecting strong conviction from partners who understand both the urgency of energy demand and the criticality of firm power.”

Sage reports that partnering with the Ormat facility will allow it to market and scale up its pressure geothermal technology at a faster rate.

“This investment builds on the strong foundation we’ve established through our commercial agreement and reinforces Ormat’s commitment to accelerating geothermal development,” Doron Blachar, CEO of Ormat Technologies, added in the release. “Sage’s technical expertise and innovative approach are well aligned with Ormat’s strategy to move faster from concept to commercialization. We’re pleased to take this natural next step in a partnership we believe strongly in.”

In 2024, Sage agreed to deliver up to 150 megawatts of new geothermal baseload power to Meta, the parent company of Facebook. At the time, the companies reported that the project's first phase would aim to be operating in 2027.

The company also raised a $17 million Series A, led by Chesapeake Energy Corp., in 2024.

Houston expert discusses the clean energy founder's paradox

Guest Column

Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience.

The myth of the lone genius in a garage doesn’t really apply here. Clean energy startups aren’t just fighting competitors. They are fighting physics, policy, and decades of existing infrastructure. This isn’t an app. You’re building something physical that has to work in the real world. It has to be cheaper, more reliable, and clearly better than fossil fuels. Being “green” alone isn’t enough. Scale is what matters.

Your biggest risks aren’t competitors. They’re interconnection delays, permitting timelines, supply chain fragility, and whether your first customer is willing to underwrite something that hasn’t been done before.

That reality creates a brutal filter. Successful founders in this space need deep technical knowledge and the ability to execute. You need to understand engineering, navigate regulation, and think in terms of markets and risk. You’re not just selling a product. You’re selling a future where your solution becomes the obvious choice. That means connecting short-term financial returns with long-term system change.

The capital is there, but it’s smarter and more demanding. Investors today have PhDs in electrochemistry and grid dynamics. They’ve been burned by promises of miracle materials that never left the lab. They don't fund visions; they fund pathways to impact that can scale and make financial sense. Your roadmap must show not just a brilliant invention, but a clear, believable plan to drive costs down over time.

Capital in this sector isn’t impressed by ambition alone. It wants evidence that risk is being retired in the right order — even if that means slower growth early.

Here’s the upside. The difficulty of clean energy is also its strength. If you succeed, your advantage isn’t just in software or branding. It’s in hardware, supply chains, approvals, and years of hard work that others can’t easily copy. Your real competitors aren’t other startups. They’re inertia and the existing system. Winning here isn’t zero-sum. When one solution scales, it helps the entire market grow.

So, to the founder in the lab, or running field tests at a remote site: your pace will feel slow. The validation cycles are long. But you are building in the physical world. When you succeed, you don’t have an exit. You have a foundation. You don't just have customers; you have converts. And the product you ship doesn't just generate revenue; it creates a legacy.

If your timelines feel uncomfortable compared to software, that’s because you’re operating inside a system designed to resist change. And let’s not forget you are building actual physical products that interact with a complex world. Times are tough. Don’t give up. We need you.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.

Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."