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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Minnesota: Follow the Money
Started by eds, Mar 11 2017 09:46 AM
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