Take Germany, for example. The German Federal Government has set a goal of increasing clean power production to 80% by 2050. In 2015, every third kilowatt hour (32.5%) came from renewable energy. Through rapid expansion, the overall production of electric power in Germany reached a new record at 647 terawatt hours in 2015. The surplus was approximately 154 billion kilowatt hours (kWh). Renewable energy covers almost a quarter (22.8%) of the global demand for electricity.
In light of these figures, the problem is not energy production, but rather the fact that energy cannot be stored efficiently and is only available while being produced. Transporting energy also presents a hurdle. The goal is to optimally provide energy at the right time and in the right place, and for that, there is no alternative to efficient storage.
