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Waste Not, Want Not: Town To Tap Sewers For Energy

Brainerd Public Utilities' Scott Sjolund at a sewer site. Sewers around the city were monitored to gauge the amount of potential energy flowing through the system. (Conrad Wilson for NPR)
Brainerd Public Utilities' Scott Sjolund at a sewer site. Sewers around the city were monitored to gauge the amount of potential energy flowing through the system. (Conrad Wilson for NPR)

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