Open metering system
The open metering system of the Open Metering System Group e.V. stands for a manufacturer- and media-independent standardization for Meter-Bus (M-Bus) based communication between utility meters (electricity, gas, water, thermal energy), submetering (cold/hot water, thermal energy, heat cost allocators), and systems in the field of smart meters. == Background == In response to Directive 2006/32/EC on energy end-use efficiency and energy services of the European Union (in particular Article 13 of the Directive), several German multi-utility-companies (public utility offering more than only one type of supply like electricity, gas, water and district heating) joined and asked international manufacturers of meters intended for billing to create a common standard.