Biogas

Did you know sewage is much more than a waste product? We generate electricity by combusting biogas, which is captured under covers that are placed over our sewage treatment lagoons and from anaerobic digesters.

 

The anaerobic lagoon at the Western Treatment Plant
The anaerobic lagoon at the Western Treatment Plant

Western Treatment Plant

The Western Treatment Plant uses biogas to meet nearly all of its electricity needs.

It generates 70,000 megawatt hours of renewable electricity every year.

Sometimes the plant produces more energy than it uses. Excess electricity is exported to the electricity grid to offset usage at our other sites.

 

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Eastern Treatment Plant

Eastern Treatment Plant

The Eastern Treatment Plant uses biogas to power a substantial part of its electricity usage, and most of its heating and cooling.

The plant’s seven generators can run solely on biogas or be supplemented by natural gas as needed.

 

 

 

 

Last updated:
7 September 2021