Linthal 2015 project

"Linthal 2015" is one of Axpo's most significant expansion projects. A new underground pumped-storage power plant will be used to pump water from Lake Limmern back up to Lake Mutt, which is 630 m higher. When needed, it can then be used to generate electricity again. The new facility will boast pump and turbine capacities of 1 000 MW each.

This will boost the output of Kraftwerke Linth-Limmern AG (KLL) from the current 480 MW or so to 1 480 MW. In terms of performance, this will put it on a par with the Leibstadt nuclear power plant or the Cleuson Dixence hydroelectric power plant. The new pumped-storage power plant will ensure future security of supply in Switzerland. Construction is expected to take about five years, and the plant should go into operation in 2015/2016. Up to 500 people will be employed on the various construction sites. This project represents an investment of approximately CHF 2.1 billion, and required new concessions to be issued for KLL in advance.

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