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Minnesota: Follow the Money


 
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#1 eds

eds

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Posted 11 March 2017 - 09:46 AM

Wastewater treatment plants,
. . . are big energy users for local governments

A growing number of Minnesota cities,
. . . are looking to renewable sources to reduce their energy use:
. . . . . . St. Cloud
. . . . . . Hutchinson,
. . . . . . Mankato,
. . . . . . Red Wing, and
. . . . . . Maplewood have all recently completed solar projects.

St. Cloud, maybe at
. . . 80% renewable energy by 2018.
Last fall, the city added digesters,
. . . to remove the methane created during the wastewater treatment process.
The methane is fed into a generator,
. . . where it produces about
. . . 5 million kilowatts of electricity a year.

The digester offers another benefit.
. . . Craft breweries and beverage companies,
. . . produce a lot of waste that's high in sugar,
. . . but doesn't contain any human or animal waste.
. . . It can be fed directly into the digester,
. . . creating even more electricity.

The biofuel cam be stored,
. . . to produce energy,
. . . when the Sun doesn't shine.

3-11-2017 Source:  Minnesota: Follow the Money

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