A sequential approach to energy efficiency helps the Edmonds Wastewater Treatment Plant secure substantial savings and earn industry recognition.

A California wastewater treatment plant uses hauled-in high-BOD wastes to maximize biogas production and generate more power than it uses.

A Massachusetts treatment plant takes advantage of federal stimulus funds to help pay for a $22 million upgrade that includes renewables and energy efficiency.

Renewable energy projects involving digester methane and concentrated solar power help a Nevada regional authority save money and conserve water