The UK government has approved the construction near Cornwall and the scientists have calculated that wave energy gathered by this generator will be enough to power up to 7,500 households. This turns into a small town. The underwater electro station is actually a hub connected to several generators that collects all the power they generate.
Besides the energy you get is free, all you have to do is maintain the energy generator and money to build one. Waves are brought to us by the sea why not use them the way we need to. Savings that the Cornwall wave power generator will bring are significant: about 300,000 tons of carbon dioxide in the next 25 years.
Need some power? How about a portable generator for all your gadgets and electronic devices? Until we all get wave power generators, we may need other means to run our dvd players when the lights go out.