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Energy self-sufficient grain mill using hydroelectricity Finland - Case Study
Courtesy of Nocart Ltd.
Pitkäkoski grain mill, located in Kiuruvesi, Central Finland, stands next to an old hydropower plant from the 1930s. The mill itself has been working since the 19th century, and nowadays both the mill and the dam are owned by the current milling entrepreneur.
Details
Solution
There are two separate generators, one able to generate 10 kW when the water level is low, and the larger one used to generate 90 kW when the river is rising. The amount of water flow is adjusted in off-grid mode to achieve balance according to usage. Rapid changes are evened out with the use of an additional battery storage unit.
Benefits
The electricity needs for both the milling facilities and the nearby residence are covered by the system, making the estate self-sufficient in a highly ecological manner. The Nocart Power Management Unit also enables surplus electricity to be fed back to the national grid.
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