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World Potential (SWEDEN)

Background of Hydro Development

The country as a whole is a land of lakes and rivers with vast forests in between. However there are large regions of plains in the south of Sweden where agriculture developed in rather large areas in prehistoric times.

As settlers moved inland and ever further to the North, they followed the water courses. There they found tillable soil and the water, liquid or frozen, became their aid for transport and communication. They also obtained fish for food, bog-ore for tools and reeds for winter fodder for the cattle. Smaller tributaries afforded mechanical power for grinding and sawing. Against such a background the early mediaeval provincial laws laid down that use of water was based on private right.

In most countries the waterways belong by law to the Government or local authorities. In Sweden they are owned by the owners of the river banks, which sometimes is the Government. This is also the reason why several power companies have power stations along one and the same river.

According to the water law, special river regulation enterprises have to be established in rivers where more than two owners take advantage of a regulation. These enterprises are responsible for the proper handling of the reservoirs and the water management and also for compensation for damage judged in the Water Rights Court. The costs are shared between the owners of the hydro stations in proportion to the advantage of the river regulation. The river regulation enterprises are independent corporate bodies.

Swedish rivers are not really suitable for ship canals and only a few canals have been built, e.g. TrolhAtte Canal on the river Gota Alv from lake Vanern to Gothenburg. The main rivers in northern and middle Sweden have been used for centuries to transport the timber and the pulp wood by floating logs from the forests in the hinterland to the industries mainly located along the coast. The hydro stations had to be designed and constructed in such a way that this transport could continue without serious disturbance and without damage to the logs when passing the structures. Nowadays, however, log transportation is effected by lorries and log floating is not practised in any river.

Country Brief
History of Hydropower
Installed Capacity
Electricity Supply Network
Planning, Operation, and Power Exchange
The Deregulated Electricity Market
Hydrology and Topography
Background of Hydro Development
Hydropower Developed Until 1995
Available Hydropower Potential
The Possibilities of Further Development