Garrison Dam is an earth-fill embankment dam on the Missouri River in central North Dakota. Construction on the dam began in 1947 and was completed in 1954.
The dam includes five electric generating units with a collective capacity of 583,300 kilowatts (kW). The electricity generated by theGarrison Dam is marketed through the
Western Area Power Administration(WAPA). WAPA is one of four power-marketing administrations within the
US Department of Energy.
The NMPA-Minnkota Joint System an allotment of energy from the Garrison Dam equivalent to approximately 109,000 kW. Minnkota has been purchasing Garrison Dam power from WAPA since 1955. Currently, Minnkota has an allotment of energy from the project equivalent to approximately 109,000 kW. Utilities across the state of Minnesota are required to reduce electricity sales by 1.5% each year based on the most recent three-year weather normalized energy sales. The PowerSavers program has delivered at or above the 1.5% savings target since the goal went into effect in 2010.
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