The standard frequency in Europe’s electricity grid is 50 Hz. To ensure the frequency always remains at a stable level the balance between production and consumption of electrical power must always be right.
Wide Area Monitoring
For the first time the power system frequencies of several locations in Europe are being time-synchronised and made publicly accessible with a high degree of precision in one common system. The measuring devices equipped with GPS receivers in each of the substations calculate the frequency and deliver it in real time together with other time-stamped data accurate to the microsecond. These are then collected at Swissgrid, superimposed on one another and published.
This is the result of many years of close collaboration between Swissgrid and the grid operators from Austria (APG), Denmark (Energinet.dk), Portugal (REN), Slovenia (ELES), Croatia (HEP), Italy (TERNA) and Greece (IPTO).