Canada-based ARC Clean Technology has closed its Series B financing round attracting a both new and existing investors. The investor group comprises the corporate venture capital arm of a major energy company, multiple venture capital funds, strategic investors, existing investors and large family offices. Participants include Xplor Ventures, Hennessy Capital Group, Cleantech Ventures, Core Synergy and Banpu Ventures.
ARC will use the proceeds to support commercialisation of its ARC-100 sodium-cooled fast reactor design. The ARC-100 is a 100 MWe integrated sodium-cooled fast reactor with a metallic uranium alloy core. The design is based on the Experimental Breeder Reactor-II (EBR-II) fast reactor prototype which operated at the USA’s Argonne National Laboratory from 1961 to 1994. ARC Nuclear signed an agreement with GE Hitachi Nuclear Energy in March 2017 to collaborate on the development and licensing of an SMR using proprietary technology from GEH’s PRISM reactor, which is also based on the EBR-II. The ARC-100 completed Phase 2 of the Canadian Nuclear Safety Commission (CNSC) Vendor Design Review (VDR) in July 2025. CNSC concluded that no fundamental barriers to licensing had been identified.
The technology is being advanced in partnership with New Brunswick Power (NB Power) at their Point Lepreau site in New Brunswick. In 2023, NB Power submitted a Licence to Prepare Site application to the Canadian Nuclear Safety Commission (CNSC) for a commercial demonstration of the ARC reactor, and the utility is also considering ARC technology as part of a plan for additional SMR capacity at the Lepreau site.
In the United States, ARC is a grant funding awardee of the US Department of Energy (DOE) Advanced Reactor Demonstration Program (ARDP) to develop and deploy the ARC-100 in the US. The new funding will also support ARC’s ongoing work with DOE, its collaboration agreement with Korea Hydro & Nuclear Power (KHNP) for global aSMR fleet deployment, and continuation of its Canadian project development supported by strategic partner, Hatch.
“Hatch has been working closely with ARC since 2022, and we are pleased to see the significant progress the company has made toward deploying the ARC-100,” said Amar Jolly, Managing Director, Power at Hatch. “Its high-temperature, zero-emission design is ideally suited to power hyperscale data centres and heavy industry, and we look forward to continuing our partnership as ARC advances toward commercial deployment.”
“This investment reflects strong confidence in ARC’s progress and the capability of the ARC-100 to deliver reliable, clean heat and power for energy-intensive industries and next-generation data centres,” said ARC CEO James Wolf. “The financing enables us to accelerate our deployment with our partners in the United States, Canada, and internationally.”
In 2025, ARC announced the formation of NuARC, a partnership entity with Calgary-based Nucleon Energy to develop and deploy the ARC-100 starting in Alberta, Canada with evaluation of potential sites in progress.
The Arc-100 is still in the conceptual design and development stage in Canada and the United States. However, Arc is targeting first-of-a-kind (FOAK) deployment in Canada in 2030 and in the US in 2035.
