4 FAQs about Swiss energy storage solar project
How does energy storage work?
The energy is then stored using gravity - in principle indefinitely and without loss. This is how it works: When surplus energy is available from connected wind or solar power plants, the blocks, each weighing 24 tonnes and measuring around 12 cubic metres, are moved upwards in the buildings, which are over 100 metres high.
Can gravity-based batteries help wind and solar power plants reach their full potential?
For wind and solar power plants to reach their full potential, they need storage systems. A Swiss start-up is introducing a gravity-based battery solution. It is an extraordinary energy storage facility that has recently been completed in the Rudong district of Shanghai, China.
Where is the gravity energy storage system based?
The research and development of the gravity energy storage system has been based in Ticino and operational since 2019 with its own R&D centre. The commercial demonstration unit has been connected to the Swiss national utility grid and used for two years of testing and software commissioning.
How are energy storage blocks made?
According to Energy Vault, the blocks are made from local materials such as soil, sand or waste. Recycled materials such as shredded wind turbine blades or coal seams from fossil fuel production will also be used. Several projects are currently under way in China and the US, totalling 915 megawatt hours (MWh) of energy storage.