Jylhämä Hydropower plant
The Jylhämä hydropower plant, completed in 1952, is located in Vaala. Jylhämä is the first hydropower plant downstream from Oulujärvi lake, and it regulates the water level in Oulujärvi lake. The output of the power plant is 55 MW and the head is 11-14 meters. Three Kaplan turbines. Average annual production covers the annual electricity use of 10,000+ households with electric heat.