In 2010, the Sheboygan (Wis.) Regional Wastewater Treatment Facility was one of the most energy-efficient treatment facilities in the state. Despite this, the city strived to do better, initiating its most ambitious and successful energy-production and energy-recovery project yet. This project was collaboratively developed by the city-Donohue team to dramatically improve its energy efficiency, production and recovery, letting the facility regularly produce more energy than it requires and achieve net zero energy status.This project included two elements: anaerobic digestion improvements to increase effective digestion capacity and biogas production and 400kW of additional microturbine capacity to convert the large quantity of
Sheboygan WWTP Achieves Net Zero Energy With Biogas
This wastewater treatment plant became the first in Wisconsin to regularly produce more electrical energy than it requires.
