This sort of sprawling solar-panel farm is hardly the most efficient form of power generation in terms of either cost or the amount of land required. Still, it makes more sense when you consider that Japan has been dealing with soaring energy prices in the wake of a disaster that threw into question its entire nuclear-power program into question. While solar is clearly more expensive than nuclear power, the Washington Post noted in June:  Most consumers think that sacrifice is worthwhile, and they say nuclear power has hidden cleanup and compensation costs that emerge only after an accident. Fossil fuels, meanwhile, release harmful greenhouse gases and must be imported from Australia, Russia, Indonesia and the Middle East.