Kragerøvassdraget
The Kragerøvassdraget (also Tokevassdraget or Drangedalsvassdraget ) is a river system in Fylke Vestfold og Telemark in Norway . It includes Lake Tokke , located in Drangedal municipality , with its tributaries and its outflow via the Kammerfosselva to the Kilsfjord and the Skagerrak . The catchment area of the river system is about 1,242 km².
The most important tributaries to the Tokke are:
- Gautefallelva
- Suvdøla
- Tørneselva / Storelva
- Runoff from lakes Nakksjøen and Tveitvatnet
The outflow of the Tokke lies in the south at Merkebekk and is formed by the Kammerfosselva . The runoff changes its name several times along its route to the sea:
- Lundereidelva from Merkebekk via Dalsfoss to Lake Farsjø (38 moh.).
- Fossane and Tisjø from Farsjø to Lake Tvähreidvannet (27 moh.).
- Vadfosselva from Tvanteid to the Vafoss.
- Kammerfosselva from Vafoss via Kammerfoss to the Kilsfjord in the municipality of Kragerø .
Use of hydropower
There are seven hydropower plants in the river system with a total annual output of 123 GWh ; two of them are on Suvdøla in the Drangedal, five along the outflow of the Tokke. The plants listed from north to south are:
| Surname | completion position |
Power in MW |
Annual output in GWh |
Fall height in m |
Number of turbines |
Reservoir | operator |
|---|---|---|---|---|---|---|---|
| Suvdøla power sales | 1960 | 30th | 1 | Drangedal everk | |||
| Suvdal power sales | 2004 | 2.6 | 10 | 2 | Drangedal everk | ||
| Dalsfoss power sales | 1907 | 6.3 | 32 | 18-22 | 3 | Tokke | Skagerak force |
| Tveiteridfoss power sales | 1955 | 2.6 | 14th | 9 | 1 | Tisjø | Skagerak force |
| Langfoss power sale | 1955 | 2.4 | 12 | 7th | 1 | Tveiteridvannet | Skagerak force |
| Vafoss power sales | 1954 | 3 | 15th | 13 | 2 | Skagerak force | |
| Kammerfoss power sales | 1958 | 1.9 | 10 | 13 | 1 | Skagerak force |