Stockholm hydropower storage

How much hydropower does Sweden produce a year?

Sweden has an average hydropower production of 65 TWh/year, which represents roughly 40% of total electricity generation in Sweden, and dam storage capacity of 34 TWh, which represents around 25% of annual Swedish electricity consumption (SOU, 2017). Hydropower is generated in roughly 2100 stations with a total installed capacity of 16.2 GW.

How does a pumped storage hydropower plant work?

In a pumped storage hydropower plant, the water can also be pumped back to the upper reservoir when there is an excess of energy. Step 1: Surplus energy in the power grid is used to pump the water and filling up the reservoir.

Can pumped hydropower be used for energy storage?

More than 90% of energy storage today is provided by pumped storage hydropower. Revolutionary concept for pumped hydropower in former mines will be elaborated in the collaboration between the two companies. Abandoned mines can serve as reservoirs for “green hydropower batteries” HEIDENHEIM/STOCKHOLM.

Do hydropower plants need backup power?

With a power system that is increasingly reliant on weather dependent electricity production, the need for this type of backup-power will be increasingly important. In a pumped storage hydropower plant, the water can also be pumped back to the upper reservoir when there is an excess of energy.