The implementation of smart metering has an impact on the energy business processes and the corresponding enterprise IT architecture. The utilization level of the new meter assets and system support sets the amount of new services and internal efficiency that can be provide by the investment. Optimizations in terms of streamlined business processes, reduced costs, increased profit, lower end-user prices and by considering environmental aspects, less energy losses and optimal energy production can be reached by the entire energy process starting with generation, grid and transmission processes, distribution and energy consumption. Business drivers for the implementation are beside law, government, regulator and sometimes the energy companies themselves in particular business informatics and the IT services.