This important contribution to the issue of renewable energy describes the technical and economical requirements of mass-produced solar thermal power plants, from the different types of power plants to the development needs and a massive development program. The authors - renowned and experienced experts in the field - show that solar thermal power plants, because of their simple technology, are easy to build with high production rates and therefore can play a substantial role in the rapid substitution of fossil fuels. On the basis of solar thermal power (using long distance transmission) and coal from substituted coal plants, a future energy system is described supplying gas and liquid fuels. This is the first discussion of a complete concept, of a crash-strategy, for the partial replacement of oil and natural gas.