| 摘要 |
A method and apparatus for storing energy, during periods of availability of excess energy of a power generation plant utilizing renewable energy source. The excess energy is exploited for pressurizing a medium concentration solution (1), the static pressure of said solution is higher than its osmotic pressure, therefore when introduced to semipermeable membrane, the solution splits, by reverse osmosis, into two portions: high concentration solution (10); and the permeate (11), each of the two portions is stored in a reservoir. During periods of low availability of the energy generating source, the solution (10) is pressurized to a pressure less than its osmotic pressure and is introduced to semipermeable membrane where its volume increases, by osmosis, with the permeate (11), the resultant solution is introduced to inlet of a turbine producing energy, part of produced energy is used for pressurizing solution (10), whilst the rest of produced energy feeds the load.
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