Electricity theft harms the electricity suppliers and subsequently all electricity customers. The FairBox is installed centrally on the last power pole in front of the buildings. The distance between the power pole with the FairBox and the building is laid in a shielded cable with protective voltage. If the protective voltage is changed, a silent alarm signal is sent to the grid operator.
In addition, main electricity meters are used for partial network areas. If necessary, the partial consumption of the customers and the total consumption can be compared.