Salinity gradient power

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Salinity Gradient is a technology that takes advantage of the osmotic pressure differences between salt water and fresh water.

If a semipermeable membrane (like that in a reverse osmosis filter) is placed between sealed bodies of salt water and fresh water, the fresh water will gradually travel through the filter by osmosis. By exploiting the pressure difference between these two bodies of water, energy can be extracted, in proportion to the difference in osmotic pressure.

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