Greenhouse gas reduction as an additional benefit of optimal pump scheduling for water utilities

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Courtesy of Water Environment Federation (WEF)

Operations Optimisers, and their subset Pump Scheduling Systems for water utilities target load movement from peak to off-peak periods chasing the tariff differential to achieve energy cost savings. Derceto Aquadapt is a holistic solver and also chases energy efficiency improvements achievable from operating pumps at more efficient points on their pump curves. Energy efficiency gains of 6% to 11% have been consistently achieved in client installations. A side benefit of efficiency improvement is a consequent reduction in the Green House Gas footprint of the utility. These savings are not trivial; the US water utility could reduce its CO2 footprint by 1.5 million tonnes per year or more.

Savings from energy efficiency improvements and load management for 4 utilities are presented. These use the Derceto Aquadapt operations optimisation software package, a complex real-time and fully automatic production, pump and valve scheduling system designed to minimize energy cost while maintaining water quality.

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