The U.S. Army selected Ameresco to negotiate long-term land leases for commercial nuclear reactor projects at Aberdeen Proving Ground in Maryland and Picatinny Arsenal in New Jersey. The projects align with the Defense Department's $2.2 billion Janus Program to deploy 20 or more microreactors across bases by 2030.
What's happening
- Ameresco will partner with Terrestrial Energy to deploy a 390-megawatt Integral Molten Salt Reactor at Aberdeen Proving Ground in Maryland, powered by low-enriched uranium fuel and liquid fluoride salt.
- Ameresco will finance, build and operate nuclear power facilities on leased federal land under the Army's Strategic Capital Initiatives and Enhanced Use Lease authority.
- The planned centers will generate electricity for regional commercial grids while providing backup power to the bases during blackouts.
- Ameresco has not yet named a supplier for microreactor and small modular reactor solutions planned for Picatinny Arsenal in New Jersey.
Why it matters
- The Aberdeen and Picatinny projects advance DoD's Janus Program goal to field over 20 microreactors across military bases by 2030, improving energy resilience and security at critical installations.
- Pairing nuclear generation with natural gas power at Aberdeen establishes a new firm power model for defense applications, reducing grid dependency during disruptions.
- Commercial grid revenue from the power campuses offsets military infrastructure costs through long-term land lease agreements, stretching constrained base budgets.
Going deeper
- The June 2025 Ameresco-Terrestrial Energy agreement preceded this Army selection, signaling DoD confidence in molten salt reactor technology for military deployment.
- Construction at both sites remains contingent on completing federal environmental and regulatory reviews, a process that typically spans 18 to 36 months for nuclear facilities.
The fine print
- The contract value is undisclosed; the Army has not stated obligated funds, ceiling price or revenue recognition schedule.
- Ameresco's role is to negotiate leases and develop the projects, but federal environmental approval is required before construction begins.
- The Picatinny project lacks a named microreactor supplier, meaning final technology and cost remain uncertain.
