Covanta Holding Corporation (“Covanta”), Green Investment Group Limited and Biffa plc announced financial close and the commencement of construction on the Protos Energy Recovery Facility in Cheshire, England. Covanta and GIG will each own 37.5 percent of the state-of-the-art Energy-from-Waste facility, with Biffa, the primary waste supplier for the facility, owning the remaining 25 percent of the project.