The City of Portland (City) is known nationwide for it’s commitment to sustainability and energy efficiency and the Columbia Boulevard Wastewater Treatment Plant (CBWTP) Co-Generation Plant is just the latest in the City’s efforts to promote energy efficient operations.

The Co-Generation Facility project included installation of two 850 kW generators; process piping and equipment to allow harvesting of gas from existing digesters and processing of gas through the treatment equipment; construction of buildings to house the two generators and associated control system components; installation of significant electrical, instrumentation and controls; and start-up and testing to fine tune the system.


City of Portland Bureau of Environmental Services




Water Resources