 This was due to the plant's location at the lower part of the stream, between Norrfors and Klabböle, where the water cools off to the point that it becomes supercooled.Initially, the plant utilized only 10 cubic meters per second of the river's average discharge of 430 cubic meters per second.To increase capacity, the power plant was expanded in 1904 with a third unit of 200 kW.