PROVIDENCE — Construction starts in December on three 1.5 megwatt wind turbines at the Field's Point wastewater overflow and treatment facility at the Port of Providence.
The wind energy is expected to supply 55 to 60 percent of the facility's power while reducing carbon dioxide use by 3,000 tons annually.
Last Thursday, the Narragansett Bay Commission board of commissioners approved a $12 million contract for the project to a team of six construction and engineering firms.
The turbines are expected to be completed in March.
The board for the quasi-government agency also approved a biogas congeration plant at the Bucklin Point sewage treatment facility in East Providence. The upgrade will allow heat from the burning of biogas to be captured and generate up to 50 percent of the electricity for the plant.
Wastewater treatment at Field's Point will also undergo nitrogen removal with the help of 78 million quarter-sized plastic discs. The discs will float inside aeration tanks capable of holding 1 million gallons of wastewater and provide surface area for nitrogen eating bacteria. Filters keep the discs from discharging into Narragansett Bay.
The board of commissioners also approved some $6 million for the next phase in the combined sewage overflow project, which will connect storm pipes from the Providence area to the Field's Point overflow tunnel.
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