Tonstad power station is a hydroelectric facility in Tonstad in Sirdal Municipality.
Tonstad power station lies in Sirdal Municipality in Vest-Agder. The municipality has a population of 1,831, and covers an area of 1,554 km², approximately 11% of which is water. Tonstad is one of seven power stations in the municipality.
The upper reservoir for the power station is Homstølvatnet.
Some of the drainage basin for the reservoir is in the municipalities of Bygland and Kvinesdal.
Wikipedia, Agder Energi’s own data.