The Rayong Co-Gen is a 98 MW Combined Cycle power project developed by Nexif Energy. The project is located near Rayong, Thailand, about 175 kilometers south of Bangkok.

At commencement of construction, Ratch Group PCL acquired a 49% shareholding in the project with Nexif Energy retaining 51%. The project, which has been constructed by a consortium of Jurong Engineering Ltd. and Thai Jurong Engineering Ltd., achieved commercial operation on 30th April 2022 within budget and as per schedule despite a challenging business environment.

The Rayong project sells electricity under a 25-year power purchase agreement (PPA) with the Electricity Generating Authority of Thailand (EGAT) and will serve industrial customers in the SSP Industrial Estate located in the fast-growing ‘Eastern Economic Corridor’ of Thailand. It utilizes the latest, most efficient combined cycle gas turbine technology available at this scale and is the global fleet-leader for deployment of the new Siemens’ SGT800C Gas Turbine (GT), making it the most energy efficient co-generation project in Thailand.

On 20 December 2022, Nexif Energy sold its remaining 51% interest in the project to Ratch Group PCL whom became the 100% owner.