Investing in the Future

Missouri River Energy Services (MRES) is developing a new hydroelectric facility that will add to our members’ renewable resource portfolio, and will help meet the growing energy needs of our members and their customers.

The Red Rock Hydroelectric Project (RRHP) is licensed at 36.4 megawatts (MW) of electricity, or enough energy to meet the needs of about 18,000 homes.


Heller calls for streamlined permitting for hydro projects

Aug 17, 2016

MRES CEO Tom Heller participated in a panel discussion May 6 during a U.S....

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Corps of Engineers officers visit Red Rock Hydroelectric Project

Apr 01, 2016

Mississippi Valley Division Commander Major General Michael Wehr, Rock Island...

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MRES awarded for worker safety at Red Rock Hydroelectric Project

Mar 17, 2016

Missouri River Energy Services (MRES) earned a safety award from Liberty Mutual...

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Work to begin next week on Red Rock project transmission line

Dec 31, 2015

Crews will begin working next week to clear foliage in preparation for...

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Upstream work at hydroelectric plant temporarily suspended

Dec 21, 2015

Work on the upstream side of the Red Rock Dam at the hydroelectric project will...

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Des Moines River, about 2.5 miles southwest of Pella, Iowa

Size of Dam

Length is 6,260 feet; height is 110 feet

Energy Production

178,000 megawatt-hours (estimated annual average)

Energy Sources

40% of our members’ energy comes from wind & federal hydroelectricity