ESG has moved from sidelines to strategy — here's what that means for Houston companies

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Amy Chronis of Deloitte shares why now's the time to invest in ESG — and the impact this movement is having on Houston. Photo via Getty Images

The Houston business community has embraced environmental, social, and governance investments, with a majority of deals in the past two years valued at $50 million or more, per PitchBook Data, Inc. In 2022, Houston companies invested just more than $1.25 billion in clean technology, climate technology, and impact investing. Nationwide, ESG investments totaled north of $15 billion across 330 deals, according to Deloitte’s latest Road to Next report, released late in 2022.

What might this mean for Houston companies? In our view, it demonstrates that ESG appears to be moving from sideline to strategy and in the process, providing potential wins across multiple fronts for companies. As companies prepare for upcoming SEC regulations around reporting greenhouse gas emissions, much of the work they’re doing is not simply “because we have to.”

Increasingly, businesses are realizing that prioritizing ESG can be good for the bottom line, for the planet and for employees. As they prioritize ESG, they’re involving teams, accepting accountability and often reaping the benefits of ESG reporting, according to Deloitte’s 2022 Sustainability Action Report. The report surveyed 300 legal, accounting, finance, and sustainability leaders from companies with annual revenue of $500 million or more. Here are some ways that ESG activity is becoming part and parcel of corporate life.

Teamwork. Fifty-seven percent of executives surveyed note that their companies have assembled cross-functional ESG teams, and another 42 percent say they plan to. That’s a considerable increase from 2021, when a similar study showed that only 21 percent of respondents had such teams in place.

Accountability. A large majority (89 percent) of executives polled have enhanced internal goal setting and accountability mechanisms to promote readiness. These executives realize that their companies can have both an impact and dependence on the environment and society, and that ESG reporting measures may not just be reporting requirements, or a box to check, but a meaningful way to align strategy with commitments to sustainability and the social good.

Proactive moves. Nearly all (96 percent) of executives surveyed plan to seek external assurance for the next reporting cycle. Among executives in the oil and gas sector, 67 percent say they will continue to obtain assurance and 31 percent will seek it for the first time. Executives are also proactively investing in technology and tools to help them meet reporting needs, with around half saying they are very likely to invest in these tools in the next 12 months. These planned investments indicate that leaders appear confident in the business benefits of ESG.

Reaping the benefits. ESG commitments, it turns out, can be good for business. They are yielding benefits, including attracting and retaining talent, increasing efficiencies and ROI, boosting trust among stakeholders, and enhancing brand reputation. Another, perhaps surprising benefit of enhanced reporting is that it can enable some companies to premium-price their products, a benefit acknowledged by nearly half (49 percent) of respondents.

Facing challenges. Businesses have challenges, especially when something new comes along. While many executives (61 percent and 76 percent, respectively) are prepared to disclose Scope 1 and Scope 2 greenhouse gas emissions, Scope 3 remains a challenge because it involves data from external vendors. As such, only 37 percent of executives surveyed are prepared to disclose Scope 3 details, the top challenges cited being lack of confidence in the data supplied by external vendors as well as lack of data availability.

In just over a year, we’ve seen ESG reporting morph into a powerful tool, one that can inform business strategy. We expect that in the coming years, leaders may see even more benefits from ESG reporting and integrate it even more fully into the way businesses are managed.

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Amy Chronis is the Houston managing partner and vice chair of energy and chemicals at Deloitte. Geoff Tuff is the sustainability leader for ER&I practice at Deloitte. This article originally ran on InnovationMap.

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Houston geothermal company raises $97M Series B

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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

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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."

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