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.’
