| 摘要 |
The invention provides a storage system for storing large amounts of energy. The storage system compensates for fluctuations in power consumption in an electrical power supply grid, and it may be useful e.g. in combination with various sources of renewable energy. The system comprises a reservoir, a load, and an energy conversion structure. The load provides a bias-force on the reservoir and thereby biases the reservoir towards a configuration with a smaller volume. When surplus electrical power is available, a turbine or similar energy conversion structure can work against the load by pumping water into the reservoir. At a later point in time, the conversion structure may regenerate electrical power based on flow energy when the fluid is released from the reservoir under pressure from the bias-force from the load.
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