Denmark: Powered by Wind
“Impossible,” “It cannot be done,” “Fluctuating renewable energy amounts of that size compromises the security of supply.”
These are the usual responses we hear from foreign guests visiting Energinet.dk. They doubt that it is possible to balance an electricity system with large amounts of energy that are dependent on the weather conditions. However, when we open the door to the control centre for the Danish transmission grid, they see colleagues neither in panic nor in fear of power cuts — regardless of whether they visit on a day when the generation from Danish wind turbines correspond to 140% of the Danes’ electricity consumption, or on a day without any wind.
The key to secure, stable and not least efficient transition to renewable energy is reliable electricity connection to neighbouring countries. Denmark is well-connected to the electricity grids in Norway, Sweden and Germany — and we will build new connections to Germany, the Netherlands and perhaps a 600km connection across the North Sea to England. Strong infrastructure and a well-functioning electricity market allow producers and consumers to trade across borders and benefit from the countries’ strong points. In Denmark, we do not have vast areas of mountains and rivers or live under a burning sun, and we do not have extensive areas of forests and loads of biomass. However, we have heaps of wind and long stretches of coastline. When the wind blows, the Danish wind-turbine owners can sell electricity to consumers in neighbouring countries, and when there is no wind, the Danes can purchase hydropower from the north, solar energy from the south or wind power from countries under a low-pressure front.
Denmark still has many power stations; and today they are very flexible and can contribute with electricity generation even for a few hours and with small amounts at a time, —> Read More