Gregory H. Halnon

Co Author: Regulatory Oversight of Decommissioning Trust Funds

Mr. Greg Halnon is the FirstEnergy Vice President Nuclear Regulatory Affairs and President & CNO of GPU Nuclear.

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 SMR 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 has served 7 terms as the National RUG chairman and 3 years as executive sponsor of the industry Reactor Oversight Process Taskforce.

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 evaluator and a life member of the American Nuclear Society.