How Energy Is Produced - The Renaissance of Renewable Energy - page 170

membrane allows the separation of positive and negative ions. A concentration of positive
and negative charges occurs at different sides of the membrane, making the system like the
two poles of a battery.
32 Of the several technologies under development, the only commercially operational
ocean energy technology is the tidal barrage, of which the best examples are the
240-megawatt La Rance Barrage (France) and the 254-megawatt Sihwa Barrage (South
Korea).
33 According to Einstein's formula E = mc 2 , E = 0.007 kg x (300,000,000m) 2 = 6.3 x
10 14 J.
34 The ITER project is funded and run by seven member entities: the European Union,
India, Japan, China, Russia, South Korea, and the United States.