Geothermal energy is plentiful in Iceland, so that nation is considering running an electrical cable under the ocean to Europe to sell its excess electricity. If successful, it'll be the longest undersea electrical cable in the world:
Depending on the destination country, the cable would be between 1,200 and 1,900 kilometres (745-1,180 miles) long, making it "the longest sub-sea cable in the world."
The project aims for the exportation of some five terawatt-hours (or five billion kilowatt-hours) each year, Jonsdottir said.
At current power prices in Europe, that corresponds to between 250 and 320 million euros ($350-448 million) in exports annually, and is enough to cover the average annual consumption of 1.25 million European households.
http://www.google.com/hostednews/afp/article/ALeqM5i8DwT00oi-riUPoOpVqp2NRScSDA?docId=CNG.269669ec3457e631da554fe16c1e45a2.221 via Popular Science | Photo via Flickr user ThinkGeoEnergy used under Creative Commons license