http://www.eia.doe.gov/emeu/cabs/Japan/Electricity.html http://www.eia.doe.gov/emeu/cabs/Japan/Electricity.html - About 60% of Japan's electricity use comes f

http://www.eia.doe.gov/emeu/cabs/Japan/Electricity.html http://www.eia.doe.gov/emeu/cabs/Japan/Electricity.html - About 60% of Japan's electricity use comes from burning stuff: oil, natural gas, coal, being the big ones. All of this is imported. Outside transportation, Oil is also used for heating homes. Nuclear is definitely an option for Japan. They also have to import the uranium, having virtually none on the island, but that is still much easier to import and stock up than other resources. That said, it's probably easier to shoot your proverbial rocket or stone at their nuclear plants than it is to shoot it into space.