Uleberg makes use of a 180-metre drop in the River Skjerka. The Skjerka empties into Lake Øre in Åseral, and after the lake the river is known as the Mandalselva
The power station makes use of the 132-metre drop from Aklandstjønn
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
This hydro-electric facility at Tjørhom makes use of the 158-metre drop between the Gravatn reservoir and Tjørhomvatn
The River Nisserelva is dammed at Tjønnefossen, and the power station makes use of the drop created by the waterfall and dam
The power station makes use of three waterfalls on the River Otra: Steinsfoss, Paulenfoss and Urfoss
Solhom makes use of the River Kvine’s drop from Nesjen/Kvifjorden to Homstølvatnet
The power station is on the River Logna, and makes use of the drop between Lake Lognevatnet and Smeland. The Logna is the longest tributary of the Mandalselva