Why do we need hydro reservoirs in the Nordic region?

The Nordic region benefits from large hydro reservoirs that provide excellent and cost-effective energy storage options, which are already being efficiently utilised. Meeting growing future flexibility needs with a changing energy mix will require supplementing hydro reservoirs with batteries or hydrogen-based fuels.

How much battery capacity will the Nordic countries have by 2030?

The Nordic countries are expected to have almost 1800 MW of installed battery capacity by 2030, not including batteries in electric vehicles. Figure 06.3: Expected battery capacity in the Nordics by 2030, not including batteries in electric vehicles.

What is the largest underground thermal energy storage in the world?

Vantaa Energy in Finland started the construction of the largest underground thermal energy storage in the world. It will have a volume of 1.1 million m3 and capacity of 90 GWh, approximately 5% of Vantaa's annual DH demand.

Which countries produce the most electricity in the Nordic countries?

The Nordic electricity market covers Norway, Sweden, Finland, and Denmark, and as many as 12 price areas. The Nordic countries produce above 400TWh in a normal year of which around 50% hydro power, 20% nuclear, 20% wind and 10% CHP.