Terra Innovatum completes PIRT for SOLO microreactor

Terra Innovatum (NKLR) Global announced the completion of the Phenomena Identification and Ranking Table, PIRT, for its SOLO microreactor, a key milestone supporting the company’s U.S. licensing and safety analysis program. A technical report documenting the PIRT methodology and results is scheduled for submission to the U.S. Nuclear Regulatory Commission, NRC, planned for February 2026. Alessandro Petruzzi, Co-Founder & CEO continued: “The PIRT process is a structured, expert-driven approach used to identify and rank the physical phenomena most important to reactor safety and system performance across normal operation, anticipated operational occurrences, and postulated accident conditions. Completion of this work strengthens the technical foundation underpinning SOLO’s safety analysis methods, modeling assumptions, and evaluation approaches that support key licensing deliverables.”