| abstract |
The invention relates to a method, a device (1) and a system for stabilizing an electricity grid, wherein the grid is stabilized by equalizing the generation and consumption of electrical energy by withdrawing excess electrical energy from the electricity grid (DSN), converting same into a storable energy source and storing same, on the one hand, and reconverting the stored energy source and feeding said energy into the electricity grid (DSN), on the other hand. According to the invention, in the event of the electrical energy generated being greater than consumption, the energy is converted and stored in chemical form as at least one hydrocarbon, as a storable chemical energy source, using carbon dioxide (CO2), formed in a preceding cycle by reconversion, wherein the at least one hydrocarbon is synthesized using the carbon dioxide (CO2) and hydrogen (H2) which is obtained by electrolysis from water (H2O) using the electrical energy to be stored. |