John Schretlen

Plant Manager

John Schretlen is an experienced professional in the power generation industry, currently serving as Plant Manager at Calpine since May 2023. Prior to this role, John worked as a Project Manager at EthosEnergy and held the position of Plant Manager at NAES Corporation. With a strong background in management and consulting, John has also worked as a Plant/Project Manager for Exxon Mobil Nigeria and as Maintenance Manager at Tenaska. A significant portion of John's career was spent at General Electric, where responsibilities included Senior Service Manager and Senior Contract Performance Manager, focusing on premium outage services and contract management for electrical energy producers. Earlier career roles include management positions at North American Energy, CalEnergy, Falcon Seaboard, and as a Technician at Amerada Hess. John holds a BS in Aviation Technology from Dallas College and an Airframe and Powerplant degree from Braniff Airlines Aviation School.

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