This is how the energy is saved
Renewable energy can be stored in several ways, with varying advantages and disadvantages. Here are the three main options.
Project name: High temperature thermal energy storage (HT-TES): The basic concept of the project is that cheap, non-degradable and environmentally friendly storage materials combined with known charging and discharging technology can reduce the cost and increase the efficiency of energy storage. EUDP has provided support for the project being able to run in a pilot phase for two and a half years until 2019. In the pilot phase, the energy storage facility is located at DTU Risø Campus. If the test results are positive, the project will enter a demonstration phase (from 2020 to 2024), where the project will be tested on a larger scale. It is not yet planned where the “real” full-scale warehouse will be located, but it is expected to be in Region Zealand if the market develops as expected The total budget for the pilot phase of the project is DKK 8.5 million.
The project’s aim is to ensure that it is financially viable to save energy in much larger quantities and over longer periods than previously. But the project is not just a technological project. It will also reveal the challenges and prerequisites for adding high-capacity energy storage to an existing grid, an existing market model and an existing tax system, thereby helping to pave the way for energy storage in a broader sense. The market potential for storage will be fully investigated during the project period, but it is expected to be achieved with a budget below DKK 100 million because the storage is so cheap to build. In addition, the project has the advantage that it can be connected to the existing district heating system in Denmark. The heat in the energy storage can be used to generate electricity for the electricity grid, but it can also be used for generating heat for the district heating system. This helps to ensure a high level of utilisation for the stored energy.
The concept is that we can save energy in a form so it can be used later than it is produced.
Energy production from renewable sources, such as solar and wind, is variable and does not always correspond to our energy consumption. If Denmark is to reach the goal of an energy supply totally independent of coal and oil by 2050, we must find new and better ways of storing energy.
- Storage in the form of heating stones or water with electricity.
- Large batteries.
- Synthetic and sustainable fuels that can replace traditional fuels for cars and provide climate and environmentally friendly transport.