All of Metro Vancouver’s five wastewater treatment plants use wastewater to generate heat or electricity (or both). Metro Vancouver is conducting ongoing research to find other ways to create energy from wastewater.
Producing energy from waste
A cutting edge approach turns sewage sludge ino biogas:
Generating heat and electricity at treatment plants
Wastewater treatment plants use a lot of energy and create greenhouse gas emissions. They also have the potential to be sources of renewable energy for the region.
Four of the region’s wastewater treatment plants use sewage to generate energy on site. The Annacis Island and Iona Island treatment plants produce both heat and electricity (known as “co-generation”) on site, while the Lion’s Gate and Lulu Island treatment plants produce heat.
This energy is then used to help operate the wastewater treatment plants. By generating energy on site, Metro Vancouver’s treatment plants reduce their operating costs, energy consumption and greenhouse gas emissions.