Thanks to federal tax incentives and a growing concern for the environment, many Americans are installing rooftop solar panels to cover or offset the cost of their utilities. In the last ten years, the solar industry has grown by an unprecedented 1,600 percent and it shows not signs of slowing. As solar becomes more affordable, however, debates have opened up around the use of solar power and its effect on older ways of producing electricity (like coal-fired and nuclear power plants). Solar power is a complicated process that is part of an even more complicated industry. If you’re thinking about making the switch, consider this your crash course in rooftop solar power.