Book excerpt: The "Energy survival guide" serves as a reliable source of information for anyone who wants to have a well-balanced opinion about the energy future of our planet. Alternatives for the post-fossil-fuel ara are reviewed. Can solar energy provide the entire world's electricity? Should we stop building nuclear power plants after Fukushima? Why don't we use wave power? Do huge windmills really make sense? How much do I save by installing double glazing? What's wrong with electric cars? To these kind of questions, an many more, the "Energy survival guide" provides the answers. Talking about energy without using numbers is futile. The "Energy survival guide" is a guide for all of us facing rising energy costs.