Shrinking reserves of fossil fuels and growing anxiety over future energy security have boosted investments in renewable energy worldwide. Alarming climate change scenarios have also increased the focus on creating sustainable energy economies. It is common knowledge that a sustainable future for both the world economy and the planet are inconceivable without renewable energy sources, such as solar energy. The solar industry is growing incredibly fast and technology is developing at high speed. Soon the retail price of solar generated electricity will be competitive with that of electricity generated in conventional power plants. This was inconceivable thirty years ago, at the time of the first oil embargo, when individual pioneers started installing solar panels on their rooftops.