ABSTRACT
A power-balancing or even a power-demand-fitted output needs considerable storage capacities, so the production costs of the electric energy are increased. A wind energy system with a maximum power installation of the above-mentioned value supporting, for instance, a national grid, cannot be erected at one site. With the assumption that no sinoidal wind power oscillation exists, one can expect the same mean power fluctuation if wind power data are referred to momentary power demand and not to mean power. The number of hours per year without any power output allows no conclusions to be drawn on the way the power fluctuations are affected by number and distance of sites. Proportional to the decreasing energy quantity passing through the storage, a smaller mean square of the power fluctuations with respect to a specific demand results. An additional storage facility connection also effects smaller power fluctuations.
