Official name Tonstad kraftverk Location Vest-Agder Commission date 1968 (1968) Nameplate capacity 960 | Country Norway Status Operational Owner Sira-Kvina kraftselskap | |
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Upper reservoir Homstølvatnet (Kvinesdal) Similar Finndøla Hydroelectric Power St, Brokke Hydroelectric Power St, Mauranger Hydroelectric Power St, Svelgfoss Hydroelectric Power St, Ulla‑Førre | ||
Tonstad Power Station is a hydroelectric power station located in the municipality of Sirdal in Vest-Agder county, Norway. The station is in Tonstad, at the northern end of the lake Sirdalsvatnet.
It has a total installed capacity of 960 MW, with 4 units each 160 MW and one unit at 320 MW, all equipped with francis turbines. With an annual production of approximately 3800 GWh, it is the largest power station in Norway with respect to annual production (in 2006). It is near the landing point of the 1,400 MW NORD.LINK power cable to Germany.
The powerstation utilises the waterfalls in the Sira and the Kvina river system, with a total height of 440 metres (1,440 ft). An application for an expansion with an additional 960 MW (pumped storage) was sent in 2008. The application is still pending.