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Hinkua Hydro Power Station

Hinkua Hydro Power Station
Hinkua Hydro Power Station is located in Haapajärvi Municipality in Oulu Province. The power station is one of the newest owned by Vattenfall in Finland. It was built above ground in 1975.

General information about Hinkua and Kalajoki river

Like Oksava, a small-scale power station also owned by Vattenfall, Hinkua is situated by the Kalajoki River. The river is 130 kilometres long and flows through the central parts of Ostrobothnia Province, past Haapajärvi and down to the Bay of Bothnia. At Hinkua Hydro Power Station the head (drop) is 19.6 metres.

The most recent improvement of Hinkua was the refurbishment of automation and electrification as well as the renewal of turbine high-pressure hydraulic system in 2009. 

The most important improvement measure in the Kalajoki River catchment area has been the creation of Hautaperä, an artificial lake that regulates the river basin/system. The aim was primarily to control the flood and make improvement of the water quality. The Finnish state has dam and regulation responsibility and Vattenfall owns the power station.