Sunday, December 18, 2005


Norwegians, Dutch mix sea and river to make power

`The new devices are based on a natural process — when a river runs into the ocean, a huge amount of energy is unleashed because of the difference in salt concentration.

“It’s basically harvesting the energy that comes free from a natural process,” Wetsus managing director Johannes Boonstra said in his agency’s laboratory in the Dutch town of Leeuwarden.

“You have the fuel for free and it’s very sustainable — no greenhouse gas emissions.”

The two projects use different methods to harness the electricity — the Dutch apply something called reverse electrodialysis while the Norwegians use a kind of osmosis.’

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