Electricity was first generated at Hunsfoss in Vennesla as far back as 1897. The first power station was subsequently expanded and modernised, and in 1964 a new power station was added on the western branch of the River Otra at Hunsfoss.
Hunsfoss power station is situated in Vennesla Municipality in Vest-Agder. The municipality has a population of 13 986, and covers an area of 384 km², approximately 5.5% of which is water. Hunsfoss is one of two power stations in the municipality.
It makes use of a 13.5-metre drop in the River Otra, which runs from the Setesdalsheiene mountains in Bykle Municipality in the north to Kristiansand in the south.
Wikipedia, Agder Energi’s own data.