salt, power plant, and urinate

In the era of searching new source of energy, especially clean-renewable one, the following information is really an interesting effort that needs to be considered by Indonesia.

The news about Norway's Statkraft will tries to build salt power could be considered as a proof that there's still another possible and potential energy resource that obviously suitable with Indonesia's endowments, environmentally clean and emission-free. The idea of this power plant is as follow:

The plant uses seawater and fresh water separated by a membrane. The fresh water creates pressure as it enters the seawater via the membrane and this pressure is converted to energy.

Another name for this kind of power plant is "osmotic power plant". Osmotic or osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration. This kind of process is easily observe with our body which often create almost similar energy when we want to urinate. Isn't that interesting?

Just for your thought of fun with salt, please watch this demonstration video on how salt could generate power.