Non-fossil energy technologies in 2050 and beyond By Riso DTU
Long-term energy security depends on the continuing availability of fossil fuels and their potential substitution by renewable energy sources.
The need to store energy
The production of renewable energy is to a large extent variable and difficult to control. In contrast to fossil energy, renewable energy must therefore be harvested when it is available.
Future energy systems will have to be much more sophisticated
Future energy systems will have to be much more sophisticated, with both central and decentralised generating units intelligently linked to end-users.