If it were up to the sun, we would have no energy problem. Every half hour on the Earth’s surface, there is more than enough light to provide energy needs for the whole world in a year. We don’t have an energy problem, we have a conversion problem. If we are able to harvest sunlight in smart way, then we can prevent a global energy crisis. That sounds nice but that does not mean it will succeed, at least that is what many different bodies want us to believe. It’s too expensive, takes too much space, too much material, it costs more energy than it brings, and it is still not efficient enough. While all these doubts play a role for solar energy in the distant future, it is still a marginal player in the global energy game.