Nano Nuclear Energy Inc. expects to begin initial construction of its KRONOS micro-modular reactor in mid- to late 2027 [1].
The project marks a significant step toward the commercial deployment of micro-reactor technology. By establishing a physical footprint at a major research institution, the company aims to validate its vertical integration strategy across the nuclear fuel cycle.
Construction is planned for the University of Illinois Urbana-Champaign [2]. To reach this stage, the company must first navigate the U.S. Nuclear Regulatory Commission (NRC) acceptance process. Nano Nuclear said it is targeting the submission of a construction permit application to the NRC in the coming months [3].
This application is a critical regulatory hurdle. Nano Nuclear said it is now one of only a handful of advanced reactor developers to reach the construction permit application stage [4]. The company intends to use this process to formally begin the U.S. licensing process.
Management said that the company remains well positioned as a leading microreactor developer focused on vertical integration across key aspects of the nuclear fuel cycle, and that it is delivering against strategic milestones outlined over the past several quarters [5].
While initial construction is anticipated for 2027 [1], the company has a longer-term target for the KRONOS prototype in 2030 [6]. This timeline reflects the complex nature of nuclear regulatory approvals and the technical requirements of modular reactor assembly.
The KRONOS project is designed to advance the company's goal of providing scalable, portable energy solutions. The partnership with the University of Illinois provides the necessary infrastructure, and academic oversight to support the reactor's development and testing phases.
“Nano Nuclear is now one of only a handful of advanced reactor developers to reach the construction permit application stage.”
The shift from theoretical design to a construction permit application indicates that Nano Nuclear is moving from the R&D phase into the regulatory execution phase. Success depends entirely on the NRC's acceptance of the permit, as any delays in federal licensing could push the 2027 construction date and the 2030 prototype target further back.




