The share of renewable energy in the Danish electricity production for national consumption was calculated at 28.5% in 2005. Wind power alone contributed 18.5%.
The Danish government has a goal that, in 2025, half of the Danish electricity consumption must be covered by renewable energy (particularly from wind power). This requires a more flexible and intelligent power system that can handle the fluctuating production from wind turbines.
The integration of renewable energy into the energy system must be flexible and economic. Effective integrated planning of the electricity, gas, heat and transport sectors is important to meet this goal. Energinet.dk has identified a number of means of integrating wind power into the power system and integrating electricity from renewable energy sources into other sectors.
The means can be divided into two groups:
1) means the primary object of which is to integrate wind power into the power system, and
2) means the primary object of which is to integrate electricity from renewable energy sources into the heat and transport sectors, which will support the long-term goal of independence from fossil fuels.
Means of integrating wind power into the power system:
- International connections
- Demand response/production
- Electricity storage
- Negative spot prices on the electricity market
- Geographical spread of offshore wind farms
- Disconnection of wind turbines
Means – integration of RE electricity into other sectors:
- Electricity for transport
- Electric vehicles
- Hybrid cars
- Hydrogen/fuel-cell vehicles
- Electricity for heating
- Heat pumps
- Electric boilers
- Micro CHP