Þórisvatn

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Þórisvatn
Coordinates	64°14′N 18°55′WCoordinates: 64°14′N 18°55′W
Primary sources	Þjórsá
Primary outflows	Þjórsá
Basin countries	Iceland
Surface area	88 km²
Max depth	109 m

The biggest lake of Iceland, Þórisvatn, is situated at the south end of Sprengisandur highland road within the highlands of Iceland.

It is a reservoir of a surface about 88 km² and uses the energy of the river Þjórsá, which comes down from the glacier Hofsjökull. Here in the south, it is exploited in a power station. Like a lot of other Icelandic lakes, which are mostly glacial lakes or volcanic lakes, it normally has a stark green color.

In addition to hydroelectric power generated from the island's rivers and lakes, Iceland also exploits the readily available geothermal energy sources. In consequence, there is a surplus of electricity, which ideally could be transmitted to other countries. However, Iceland's isolated position makes this a difficult proposition for the time being.