A method for determining a power outage probability of an electrical power grid, a method for an adaptation of a power generation capacity and a method for determining an energy storage unit size

A method for determining a power outage probability of an electrical power grid is suggested. The method comprising the following steps: - dividing the time period into several time intervals, - determining a power generation capacity and an energy storage unit size for the time period, - determining an effective load unit demand for each time interval from a load unit demand for each time interval, respectively, wherein the load unit demand for each time interval is read-out from a database or obtained by reading out a power meter, and - computing the power outage probability from a grid value that comprises the power generation capacity, the energy storage unit size and the effective load unit demand, wherein the grid value is optimized for its maximum value with respect to all time intervals of the time period by a processor of a data processing unit.