ABB scoops Swiss power order

06 August 2008

Kraftwerke Linth-Limmern AG (KLL) has shored up regional power supplies with refurbishment and expansion at its Tierfehd hydro power plant in Switzerland. The expansion included a $31 million (€20 million) order from ABB, incorporating two turnkey substations and auxiliary power equipment.

ABB will supply and install two gas-insulated switchgear (GIS) substations, rated a 220 kilovolts and 50 kilovolts, along with air-insulated components and complete substation automation system.

Peter Leupp, head of ABB’s power systems division, described the order as ‘a good example of how ABB can provide complete tailored solutions to meet customers’ needs and also support the use of renewable energy.’

KLL produces 460 million kWh of electricity every year. The construction of a pumped-storage power facility with a pump/turbine rating of 1000 megawatts is planned for 2015. It will be built inside a mountain, 600 meters below the surface near the town of Linthal.

Pumped-storage power stations can respond quickly to fluctuating power demands, and are the only large-scale means of storing power available today. During periods of low demand, excess power is used to pump water into a higher reservoir. When demand for power increases, the water is released back through a turbine, generating electricity.

Hydropower is one of the cleanest, cheapest and most easily controlled methods of renewable power generation. Its use as a reserve to manage demand peaks is an environmentally attractive solution, particularly in combination with less reliable renewable resources such as wind power.

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