Nano Nuclear Energy Inc. (NNE) received a DOE Gateway for Accelerated Innovations in Nuclear (GAIN) voucher, designated NE‑26‑38854, to support the development of its KRONOS microreactor. The voucher grants NNE access to Oak Ridge National Laboratory’s SCALE/TSUNAMI code suite for uncertainty quantification and sensitivity analysis, enabling the company to quantify the impact of nuclear data, modeling assumptions, and operational parameters on reactor physics metrics.
The GAIN voucher is not a direct cash award; instead it provides NNE with national‑laboratory expertise and resources that can reduce regulatory uncertainty and accelerate the KRONOS MMR™’s path to commercialization. By collaborating with ORNL, NNE can validate safety margins and generate data that will inform ongoing development and support the reactor’s positioning for future deployment.
KRONOS is a stationary, high‑temperature gas‑cooled reactor that NNE is pursuing pre‑application discussions with the U.S. Nuclear Regulatory Commission for a construction permit. The company has completed site characterization at the University of Illinois Urbana‑Champaign and secured approximately $600 million in cash from private placements to advance construction, licensing, and deployment activities.
"This award reflects the progress we have made in advancing the micro modular reactor through its development stages," said Jay Yu, Founder and Chairman of NANO Nuclear. "We are pleased to receive our second GAIN voucher as a company and the first for our KRONOS MMR™ Energy System. This award reflects the progress we have made in advancing the micro modular reactor through its development stages, and I want to recognize the efforts of our amazing engineering and scientific teams in securing this voucher. Looking ahead, we expect our collaboration with ORNL to generate valuable data that will help inform ongoing development and support the positioning of KRONOS MMR™ for future deployment." Alisha Kasam‑Griffith, Director of Reactor Design, added, "The receipt of this DOE’s GAIN Voucher Award represents another important achievement for our engineering and scientific teams." James Walker, CEO, noted, "NANO Nuclear is continuing to advance the KRONOS MMR™ Energy System toward real‑world deployment, and the award of this GAIN voucher provides meaningful support as we prepare the technology for the next phase."
NNE’s stock has declined 52.56% over the past six months, trading at $22.49 with a market capitalization of $1.17 billion as of April 9 2026. The company’s previous GAIN voucher was awarded for its ZEUS microreactor heat‑exchanger design in collaboration with Idaho National Laboratory, marking the first voucher for the KRONOS system and the second overall for NNE.
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