United States Nuclear Regulatory Commission - Protecting People and the Environment

Gregory Halnon

Mr. Halnon began his career in 1981 as a system engineer for the fossil fleet at Florida Power Corporation in St. Petersburg Florida. He later moved into nuclear as a system engineer for the Crystal River Nuclear Plant in HVAC and mechanical-thermal systems. Mr. Halnon has over 30 years in engineering, operations, regulatory affairs, quality, and line management of nuclear power stations.  He has held two Senior Reactor Operator licenses and is a registered professional mechanical engineer in the states of Florida and Ohio.

In his career; Mr. Halnon has served as a plant general manager, general engineering manager and quality director at various nuclear units and fleets. He has served on several Small Modular Reactor advisory boards and chaired two Industry Consortiums.

Greg presently serves as the nuclear regulatory officer for FirstEnergy Corp.  He is also responsible for the leadership of the Three Mile Island Unit 2 decommissioning and Post Defueled Monitored Storage. He presently is serving his 6th term as the National RUG chairman.

Mr. Halnon received his bachelor of science in mechanical engineering from the University of Central Florida after doing undergraduate agricultural technology research at Virginia Tech. He completed the INPO Senior Plant Managers Professional Development in 1997.   He is a qualified ABET accreditation elvaluator and a life member of the American Nuclear Society.
Page Last Reviewed/Updated Monday, June 04, 2018