With the devolo smart meter gateway (SMGW), we provide encrypted data transmission in compliance with data protection laws within the intelligent energy network. This guarantees that data is protected and protects the mains supply from unauthorised access.
The SMGW is the interface between the smart meters (current, gas, water) within the building and the gateway administrator (GWA) The collected and encrypted data will be transmitted to the GWA. The GWA forwards them to the different energy supply companies. In addition, the smart meter gateway provides its encrypted data directly to the end customer via the HAN interface (Home Area Network). Consumers and feeders, such as photovoltaic systems from energy providers, can be controlled via the HAN-CLS (controllable local services) interface. These future application options provide network stability. The end customer can also be given the option to use a variable electricity rate.
The basis for the development of the smart meter gateway in Germany is provided by the specifications of the Federal Office for Information Security (BSI). As part of the BSI protection profile BSI-CC-PP-0073 (Protection Profile for the Gateway of a Smart Metering System), which is anchored in the German Energy Industry Act , the ministry provides details on the way in which data should be encrypted and coded. With an Evaluation Assurance Level (EAL) of 4+, these are among the highest global security standards for communication in intelligent energy networks.
A security module that ensures the encryption and certificate management of sensitive data is the centrepiece of the SMGW. To accomplish this, a complex algorithm based on the German technical directive TR-03109-3 (Cryptographic specifications for the infrastructure of intelligent measuring systems) is implemented. The functional and design-related regulations from the FNN specifications and the PTB-A 50.7 and PTB-A 50.8 weights and measures requirements must also be met.