Brown is the new ‘green’ as South Plant becomes a major local source of renewable biofuels

Purified renewable natural gas produced at South Treatment Plant in Renton is now a clean diesel alternative for local commercial trucks. Each year, the volume of renewable natural gas produced at the South Treatment Plant is the energy equivalent of about 1.7 million gallons of diesel fuel.

South Plant gets to the heart of energy efficiency

This fall, WTD earned an $894,970 grant from Puget Sound Energy for a pump replacement project at South Plant that will save enough electricity to power 212 homes a year. Read how our team of engineers, energy experts and plant operators collaborated with each other and with our PSE partners to make this project succeed.