Tonstad power station

Tonstad power station is a hydroelectric facility in Tonstad in Sirdal Municipality.

Key numbers

Geography:

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.

Tunnel length 2400m
Vertical drop 450m
Operating since 1968
Aggregates Aggregates Aggregates Aggregates Aggregates
Number Aggregates in operation at the station:5
Eierskap
Agder Engergi owns 12.2% of power plant
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Every second runs the 250m³ water through the plant. Enough to fill 25 ten-liter buckets of water every hundredth of a second.

Power producting:

5.59%
Tonstad power station supplies 458 GWh to Agder Energi per year, equivalent to 5.59% of the 8200 GWh generated by the group in an average year.
#4
This makes Tonstad power station the 4th biggest power station in the Agder Energi group.
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Agder Energi’s share of generation covers the annual consumption of approximately 22900 households.

Wikipedia, Agder Energi’s own data.