The plant team in Wausau, Wis., made energy efficiency a top priority when selecting new equipment for a $2 million upgrade.

High-speed turbo blowers play a central role in a Texas treatment plant’s energy efficiency upgrade project

West Lafayette and Purdue University collaborate on a program to feed digesters with cafeteria scraps, boost methane production and save money

Solar energy brings quick cash flow for a New Jersey utility authority — and power generation with a biogas-fueled microturbine sweetens the deal

Microturbine cogeneration and other energy-efficiency measures help a Wisconsin treatment plant toward the goal of being energy neutral

The treatment plant serving Delhi Charter Township stays green with measures from grounds maintenance to microturbine cogeneration