Since nearly 100 years DZG Metering GmbH produces and sales electricity meters. DZG is a German company located in Oranienburg near of Berlin. The last years DZG changed from mechanical meters to electronic meters. For these meters the possibility to communicate with other equipment and systems becomes more and more important. The electronic meters are available with communication interfaces based on the PRIME standard. The PRIME certified products of DZG save the interoperability to other equipment and systems.