Elster collaborates with PPC and OpenLimit to create a complete interoperable BSI smart metering solution. Elster is offering its German customers a complete interoperable BSI smart metering solution, in which the gateway from PPC and OpenLimit will be integrated. The Smart Meter Gateway meets the requirements not only of the Technical Guideline and the BSI Protection Profile, but also of the PTB (Physikalisch-Technische Bundesanstalt or Federal Physical and Technical Institute) and the FNN (the VDE's Forum on Network Technology /Network Operation).