This data is anonymized and used solely for research purposes. Functionality: Reading of 15-minute meter readings (consumption and feed-in values) from the registers of electronic electricity meters. Reading of power values at 1-2 second intervals for both consumption and feed-in sides from electronic electricity meters. Local intermediate storage of meter readings and power values on the poweropti device. Utilization of extensive transparency, comparison, and alarm functions via the powerfox app (iOS and Android). Access to all data (for private customers) through the cloud API of the powerfox service for integration with smart home platforms. Supported meters and protocols: Compatible with meters according to the FNN specifications for basic meter 1.4.1, with data output in SML protocol and IEC1107. The following requirements are necessary for the use of the poweropti device: A compatible electronic electricity meter with an optical customer interface. A power outlet for the power supply near the meter. Sufficient WLAN reception strength near the meter. A 4-digit PIN from the metering point operator to activate the electricity meter. Available space for the installation of the poweropti WLAN antenna outside the meter cabinet.