Mintz’s Sustainable Energy & Infrastructure Practice advised on $5.6 billion in deals in 2025, closing over 60 transactions and marking over 200 completed transactions in the last three years. The team also commemorated 20 years since it was launched as the legal industry’s first integrated practice dedicated to the energy transition.

“The defining issue for our clients today isn’t whether the market will grow, it’s whether enough power and infrastructure can be delivered to keep pace with demand,” said Thomas R. Burton, III, Chair of Mintz’s Sustainable Energy & Infrastructure Practice. “In 2025, helping clients respond to that demand was central to the ambitious and complex projects we supported across energy, innovation, and infrastructure. As we enter our third decade, that momentum is driving even larger and more sophisticated opportunities, and our fully integrated team remains focused on turning emerging opportunities into results for clients on a global scale.”

The following highlights capture key projects and engagements that showcase the practice’s capabilities and reach throughout the past twelve months:

• US Department of Energy Loan Programs Office on major project financings, including:
  • The closing of a $1.67 billion loan guarantee to Montana Renewables for the expansion of its facility to produce sustainable aviation fuel (SAF), renewable diesel, and bio-naphtha—the largest SAF facility in North America once operational. The closing marked the first project to draw DOE loan funds under the Trump administration from a loan guarantee originally approved under the Biden administration, with an initial $782 million drawdown in February 2025 financing Phase 2 of the project. Mintz served as lenders’ counsel, guiding DOE through complex structuring, documentation, and intercreditor arrangements.
  • The closing of a $1.45 billion loan guarantee to Hanwha Q Cells Georgia to finance a fully integrated solar manufacturing facility in Georgia, designed to produce 3.3 GW annually of photovoltaic ingots, wafers, cells, and modules—the largest integrated solar manufacturing complex in the US.
• HPJV1 in the sale of its 100% equity interest in Linden Cogeneration, a 980 MW natural gas‑fired cogeneration facility serving the New York City power market, to Electricity Generating Public Company Limited (EGCO), advising a joint venture between Platform Partners Asset Management and GS EPS on a complex, cross‑border energy transition transaction involving FERC, CFIUS, and tax considerations.
• Mitsui & Co. in ongoing representation on landmark clean energy projects, including:
  • An offshore wind project in Niigata Prefecture, Japan, one of the largest globally to reach financial close.
  • A 110 MW utility-scale solar and battery storage project in Texas, among the largest solar-plus-storage facilities in the US.
• Antora Energy as lead counsel in the Big Stone South Thermal Battery Project in South Dakota, supplying low-carbon heat and power to POET’s ethanol facility and advancing thermal battery storage as a cost-effective industrial energy solution.
• S2G Investments in a $40 million growth equity financing of Sojo Industries, supporting advanced manufacturing and sustainable packaging solutions.
• UbiQD in its Series B financing, led by Phoenix Venture Partners with participation from Builder’s VC, Builder’s Vision, Azura Group, Stout Street Capital, Seraph Partners, Scout Ventures, New Mexico Vintage Fund, and other investors, and its strategic acquisition of BlueDot Photonics strengthening UbiQD’s intellectual property portfolio and expanding its quantum dot capabilities across sustainable agriculture and energy applications.
• Canaccord Genuity as book‑running manager in a series of underwritten public offerings for NASDAQ‑listed Dragonfly Energy Holdings Corp., and as bookrunner in a public offering of NASDAQ and Tel Aviv Stock Exchange-listed Arbe Robotics, which involved navigating complex cross‑border securities issues and ensuring compliance with US and international regulatory requirements.
• Activate Capital Partners III as lead investor in the initial closing of Aerones Holdings’ growth equity financing of up to $60 million.
• Spring Lane Capital in its investment in Soluna Holdings, supporting the development of renewable-powered data center infrastructure, enabling sustainable computing solutions for energy-intensive operations.
• Perch Energy in its joint venture with Arcadia to manage over 3 GW of community solar capacity and 350,000+ customer subscribers across 16 states.
• Cambrian Water Holdings in its acquisition of ResilientIG Project VI, an entity engaged in a strategic relationship with L3Harris, a major defense and technology company.
• Leading energy company on Massachusetts legislation aimed at integrating nuclear energy into the state’s clean power mix, including removal of siting and waste facility barriers.

Data Centers & Digital Infrastructure

Mintz played a key role in advancing critical digital infrastructure in 2025, helping deploy resilient, high-capacity systems to support the growing demands of modern digital services. The firm advised on data center and colocation projects, including hyperscale and other large-load facilities, and structured project financing, navigated interconnection agreements, and integrated generation and storage solutions.

Our work included advising a leading digital infrastructure platform on acquisitions, development, construction, and financing of mission‑critical data centers nationwide, and representing an institutional investor in the acquisition, development, and repositioning of power‑intensive industrial assets to support next‑generation connectivity. By coordinating technical, regulatory, and commercial considerations across power‑intensive assets, Mintz helped clients scale efficiently and accelerate deployment across complex energy and digital infrastructure networks.

Energy Regulatory & Litigation

Mintz continued to play a leading role in high-stakes energy regulatory and litigation matters, particularly before the Federal Energy Regulatory Commission. Led by Steven Shparber, the team played a central role in some of the highest-profile proceedings before FERC over the past year, including representing the nation’s largest clean energy trade groups in matters tied to FERC’s landmark Orders No. 2023 and 1920. The team also advised clients on how those new frameworks are reshaping transmission and interconnection across the US. Mintz represented project developers, asset managers, and private equity funds in Federal Power Act Section 206 complaint proceedings, achieving favorable rulings or successful settlements in each.

Financing Nuclear Energy

Nuclear energy is experiencing a global resurgence driven by technological innovation, decarbonization goals, energy security concerns, and the need for consistent, reliable power. Mintz has and will continue to be part of this resurgence, deploying its decades of experience advising sponsors, investors, and developers on complex nuclear projects and related equity and finance transactions. The team has supported the deployment of utility-scale reactors, first-of-its-kind small modular reactors, fission, nuclear refurbishment, and medical isotope projects. In 2025, we advised clients and structured solutions linking generation, transmission, and storage to meet the needs of energy-intensive users, including digital infrastructure projects. Next-generation nuclear facilities have the potential to significantly alter the future of power generation in the US and globally, and our group’s multidisciplinary capabilities make us well suited to support clients navigating and capturing opportunities as part of this transition.

Facilitating Innovation Across the Industry Ecosystem

The practice continued to convene leaders across investment, policy, and technology to advance solutions for rising power demand and transforming infrastructure in 2025. The Fourth Annual Energy Transition Summit: Shaping Our Energy Future – The Path Forward featured a keynote from David Crane, CEO and Chairman of Generate Capital, and sparked forward-looking discussions on the most critical opportunities and challenges reshaping the sector. Over the year, the team also advised clients on implementing FERC interconnection and transmission reforms under Order 1920, providing actionable insights to support the development of resilient, high-capacity energy infrastructure.

In addition, the practice continued to support innovative companies in intellectual property matters, including hosting speakers from Raytheon, Philips, Tangibly, and ONTO Innovations at The Engine at MIT for a session titled “Supercharging Your IP Strategy with Trade Secrets.”

“Mintz is committed to being part of the innovation ecosystem and helping scale great companies and technologies,” said Sahir Surmeli, Co-chair of the Mintz Sustainable Energy & Infrastructure Practice. “Working alongside management teams, boards, investors, bankers, and the vast community at the forefront of energy, infrastructure, and industrial technologies, we help support capital raises, partnerships, and M&A from early stages through IPOs and beyond. We are driven to help our clients continue to grow companies advancing the infrastructure and technologies that are defining the next era of the energy transition.”

About Mintz Sustainable Energy & Infrastructure

The Mintz Sustainable Energy & Infrastructure team is committed to advancing innovation, transforming infrastructure, and scaling solutions integral to business success and a thriving planet. Led by Tom Burton and Sahir Surmeli, and including Projects & Infrastructure Chair Ayaz Shaikh and Member Paul Dickerson, the team includes 50+ industry-leading attorneys and professionals across legal disciplines. As the first law firm to develop an integrated practice focused on energy transition and sustainable innovation, Mintz has helped clients complete 800+ transactions over two decades, with more than $40 billion in investment value. Over the last five years, the practice has served more than 250 clients spanning the climate tech, energy transition, sustainable infrastructure, and green industrial sectors.