Press Releases

1.8 GW power plant to bring power, jobs to eastern Ohio

September 2019

POWER to provide engineering and design services

ORADELL, New Jersey (Sept. 20, 2019) — POWER Engineers, Incorporated (POWER) will provide design engineering for a 1.8 GW natural gas-fired power plant slated to power the equivalent of 1.5 million homes and boost the economy of a county at the heart of Ohio’s shale gas region.

The Guernsey Power Station, developed by Caithness Energy, LLC and Apex Power Group, LLC, will be located in Guernsey County, Ohio, where it will sell energy, capacity and ancillary services. The plant will serve the PJM region, which provides electricity to millions of customers across thirteen states and the District of Columbia. The plant is expected to be in operation in 2022. POWER will complete the power plant engineering and equipment specification as a subcontractor to EPC firm Gemma Power Systems.

“This is our engineering team’s fifth H-class power plant design with Gemma in the last six years,” said POWER senior project manager Bill Richardot. “We thank Caithness Energy and Gemma Power for the opportunity to collaborate successfully on another clean, efficient and industry-leading advanced gas-fired combined cycle plant.”

Caithness Energy estimates the plant will bring up to 1,000 jobs to the region during construction and create 30 permanent high-tech jobs for the community.

“Caithness Energy strives to assemble the most experienced partners in the industry,” said Ross Ain, President of Caithness Energy, LLC. “We look forward to once again teaming with POWER as the engineer of record for this regionally important project.”

“Gemma is looking forward to another great project experience with POWER and Caithness Energy,” said Gemma President Colin Trebilcock.  “We will continue what has been started in forming a teaming relationship with the project stakeholders.”

The plant will include three General Electric 7HA.02 gas turbine single-shaft combined cycle generating units, some of the most advanced gas turbines GE offers. The turbines will each be paired with an outdoor heat recovery steam generator and air-cooled condenser. Each unit will have a generating capacity of more than 600 MW. The design will use dry cooling technology, which can reduce water usage by more than 95% compared with traditional cooling means. The advanced turbine technology and environmental controls will deliver an optimum level of fuel consumption and emissions, respectively.

About Gemma Power Systems: Gemma Power Systems, a wholly owned subsidiary of Argan, Inc. (NYSE: AGX), is a leading Engineering, Procurement and Construction (EPC) company providing innovative solutions for the power and renewable energy industry. Our wide-ranging and comprehensive experience includes 14,500 MW of installed capacity including combined cycle and simple cycle gas turbine generating plants, biomass, solar facilities, wind farms, biofuel plants and environmental facilities.  Additional information about Gemma Power Systems can be found at Follow Gemma on LinkedIn and Twitter at @gemmapwr.

About Caithness Energy: Caithness Energy, L.L.C. is a privately-held independent power producer specializing in the development, acquisition, operation, and management of renewable energy and natural gas development projects. Learn more at