RESOLUTION 5135: ADOPT A RESOLUTION AUTHORIZING THE CITY OF GLENDALE TO RECEIVE AND ACCEPT ANY PROCEEDS FROM THE SALE/RECOVERY OF BIOGAS AT THE JOINTLY OWNED 91ST AVENUE WASTEWATER TREATMENT PLANT
Staff Contact: Craig A. Johnson, P.E., Director, Water Servicesnd
Purpose and Recommended Action
Recommendation
This is a request for City Council to waive reading beyond the title and adopt a resolution authorizing the City of Glendale to receive and accept any proceeds from the sale/recovery of biogas at the jointly owned 91st Avenue Wastewater Treatment Plant (WWTP).
The proposed agreements provide an opportunity to sell excess digester gas as a renewable green energy commodity for beneficial use and to create a positive revenue stream for the SROG members. The 91st Avenue Wastewater Treatment Plant (WWTP) generates digester gas as a byproduct of treating wastewater. A small portion of the gas produced is used in the treatment process as boiler fuel to heat the digesters. The excess gas produced is currently burned in flares at the WWTPbody
Background
The 91st Avenue WWTP is owned by a partnership of cities that include Mesa, Glendale, Phoenix, Scottsdale, and Tempe, jointly referred to as SROG. The digester gas produced at the plant is a result of the natural breakdown of organic matter in the wastewater treatment process and captured in the anaerobic digesters. Current quantities of gas produced at the plant are 600,000 million British Thermal Units (Btu) or enough to meet approximately 6,700 household's annual consumption.
Ameresco proposes to lease a small area of City of Phoenix land at the WWTP to process the excess biogas. Gas processing will include removal of moisture, removal of selected contaminants, and pressurization of the product gas to interstate gas transportation pipeline pressures. A component of the project is a new pipeline from the gas processing facility to the Kinder-Morgan Pipeline, which is about three miles west of the WWTP....
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