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Table 1

1 January 2000

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Table 1: Key statistics

Installed capacity	690MW
Annual electricity production	Approx. 4600GWh
Turbines	6 Francis vertical axis
Rated discharge per unit	24m3/sec
Rated output per unit	115MW
Hlsln reservoir area	57km2
Hlsln reservoir length	25km
Hlsln reservoir live storage	2100Mm3
Hlsln full supply level (FSL)	625m a.s.l.
Hlsln minimum operating level	575m a.s.l.
Hlsln catchment area	1806km2
Average inflow to Hlsln	107m3/sec
Krahnjkar dam maximum height	193m
Krahnjkar dam length	730m
Krahnjkar fill materials	8.5Mm3
Desjarr dam maximum height	60m
Desjarr dam length	1100m
Desjarr fill materials	2.8Mm3
Saudrdals dam maximum height	25m
Saudrdals dam length	1100m
Saudrdals fill materials	1.5Mm3
Ufsarln reservoir area	1km2
Ufsarln maximum water level	625m a.s.l.
Ufsarln pond catchment area	430km2
Average inflow to Ufsarln	31m3/sec
Ufsar dam maximum height	37m
Ufsar dam length	620m
Ufsar fill materials	0.6Mm3
Keldurln reservoir area	7.5km2
Keldurln FSL	669m a.s.l.
Keldurln live storage level	60Mm3
Keldur dam maximum height	26m
Keldur dam length	1650m
Keldur fill materials	0.8Mm3
Tunnels	Approx. 72km
Headrace from Hlsln (dia: 7.27.6m)	39.7km
Headrace from Ufsarln (dia: 6.5m)	13.3km
3 adits to headrace (dia: 7.27.6m)	6.9km
2 diversion tunnels and adit at dam	2.4km
Grouting galleries at dam	0.5km
Surge tunnel (dia: 4.5m)	1.7km
2 diversion tunnels Hraunaveita (dia: 4.5m)	3.7km
2 vertical pressure tunnels (dia: 4.0m)	0.8km
Access tunnel to power station (dia: 7.5m)	1.0km
Tailrace tunnel (dia: 9.0m)	1.3km
Cable tunnel (dia: 4.0m)	1.0km
Total head	599m
Maximum rated discharge	144m3/sec
Average discharge	110m3/sec

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