![Chicago-Area District Nears Net-Zero Energy Through Efficiency and Aggressive Biogas Production](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fdowners3.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=c5510f5b1340a5477467c16020e4fe3a)
High-speed turbo blowers replaced older blowers at the Downers Grove plant (Sulzer Pumps Solutions).
The Downers Grove (Illinois) Sanitary District is on the verge of a sustainability milestone: The wastewater treatment plant is producing more electricity than it uses, nearly enough to offset natural gas consumption to become a net-zero energy facility.
Nick Menninga general...