The study shows a virtual way to store energy in a grid treating the grid itself and all connected energy consumers as one energy storing system. The described system is supplied with energy being produced in a traditional way and from alternative energy sources. Additionally, it consumes the energy through a large group of dispersed customers. The theory is based on the changes of the time zones, which determines the different consumption of energy at different times and locations. In a micro scale, the system is not complementary and requires input at peak power times as well as additional storage. However, in the following estimation it is not necessary to construct large energy storage systems but eventually a combination of smaller storage units, if needed. This is a common phenomenon, to use an energy system as a kind of buffer, but if we consider it is a system to store energy, new ideas about its development come to mind. In the article several methods of calculation of energy flow are shown. There are two possibilities described. The first one occurs when the customer produces and stores the energy in the grid to use it later in the same location. The second one consists in producing energy in one location and using it in another one. Is such an approximation the grid is not only the place to store energy, but also to transfer to another place.