AECOM establishes partnership with Type One Energy to provide design engineering services for its innovative stellarator fusion power plant, Infinity Two

The first-of-its-kind partnership provides AECOM with a unique advantage in the fusion energy market

DALLAS (September 25, 2025) - AECOM, the trusted global infrastructure leader, today announced it has established a partnership with Type One Energy, a mission-driven company focused on providing sustainable, affordable fusion power to the world. As part of the partnership, AECOM will conduct preliminary design engineering for Type One's 350MWe Infinity Two stellarator fusion power plant, which is intended to supply the Tennessee Valley Authority (TVA) with secure, reliable, and clean energy.

"This first-of-its-kind partnership marks a notable milestone for both companies, as we come together to advance innovative stellarator fusion technology that has the potential to bring affordable and clean energy to communities around the world," said Frank Sweet, chief executive of AECOM's global Environment business. "As clients globally establish their plans to meet rapidly growing energy demand, fusion technology can serve a critical role in helping to build a more resilient energy supply base."

On September 19^th, TVA issued Type One Energy, the world's first Letter of Intent to construct one or more of Type One's Infinity Two fusion power plants at their Bull Run site near Knoxville, Tennessee. AECOM and Type One Energy have already begun executing the first TVA contract for this project. A final decision by TVA to proceed with construction of the Infinity Two plants depends on successful completion of all project development activities and necessary approvals.

"This is an exciting time in the fusion energy space," said Jennifer Obertino, senior vice president of AECOM's global Energy practice. "Our teams have been working with Type One Energy over the course of this past year, which have given us direct experience with the company's innovative technology and furthers our excitement in helping to bring this safe, sustainable and affordable energy to market."

As one of the only global infrastructure firms accredited by the United States's National Association of Energy Service Companies (NAESCO), AECOM brings more than 20 years of multidisciplinary expertise to deliver the full spectrum of clean energy services - from renewables and alternative fuels to grid modernization and efficiency - helping clients achieve resilient, sustainable outcomes.

About AECOM

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients' complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com.

About Type One Energy

Type One Energy Group is mission-driven to provide sustainable, affordable fusion power to the world. Established in 2019 and venture-backed in 2023, the company is led by a team of globally recognized fusion scientists with a strong track record of building state-of-the-art stellarator fusion machines, together with veteran business leaders experienced in scaling companies and commercializing energy technologies. Type One Energy applies proven advanced manufacturing methods, modern computational physics and high-field superconducting magnets to develop its optimized stellarator fusion energy system. Its FusionDirect development program pursues the lowest-risk, shortest-schedule path to a fusion power plant over the coming decade, using a partner-intensive and capital-efficient strategy. Type One Energy is committed to community engagement in the development and deployment of its clean energy technology. For more information, visit https://www.typeoneenergy.com or follow us on LinkedIn.