Clean Energy Technologies plans a waste-to-energy project in Tennessee

Clean Energy Technologies (CET) will deliver an innovative waste-to-energy system set for completion in Tennessee, US, later this year that will provide renewable electricity to a municipal wastewater treatment plant.

The Tennessee project will mark the second commercial collaboration utilising the Clean Cycle Generator from CET.

CET's equipment will generate over a million kilowatt-hours of renewable electricity over the 20-year life of the project by converting 8,000 tonnes of waste material diverted from landfills each year.

Other benefits include a carbon emission reduction of 2,500 tonnes annually.

The plant has been awarded a $250,000 (€219,600) Clean Tennessee Energy Grant from the Tennessee Department of Environment and Conservation.

PHG Energy (PHGE) of Nashville designed and is now building the facility in Lebanon, Tennessee, that will initially convert some 32 tonnes per day of wood waste, scrap tyres, and sewer sludge into a fuel gas through a patented downdraft gasification process.

The synthetic gas created will fuel a thermal oxidiser and the heat energy will be transferred to three 140kW organic rankine cycle (ORC) generators provided by CET.

"We are very excited to play a major role in this system that provides clean energy and addresses economic concerns at the same time," said Kam Mahdi, CEO of CET. "The flexible system PHGE has devised, can be the start of a solid foundation of reducing landfill usage, greenhouse gas emissions and electrical costs for many cities and industries."

PHGE began working with CET's heat waste generators during a research and development deployment in 2012.

At the time the Clean Cycle Generator business was owned by General Electric, but it was acquired by CET in 2015. 

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