The current reading of the meter (“Index” or “Zählerstand”) is sent to the central system at 15-minute intervals in the case of electricity meters. There it is recorded and stored for a period of up to 15 years. Information about incidents relating to the quality of energy supply, e.g. power cuts, power surges and technical faults with the meter, is sent to the central system and used by Luxmetering and the network operators for operational purposes.