September 27, 2010 - At this year’s Metering Europe conference and exhibition in Vienna Siemens presented a holistic smart metering solution as a key component for setting up smart grids. This solution consists of an AMIS automated metering and information system and an Energy IP metering management system. As a data hub Energy IP integrates existing utility IT systems via an SAP-certified interface into the smart metering infrastructure. Utilities can thus utilize smart metering across their business – from metering to billing and from operations control to network planning. Siemens is one of the few companies worldwide that can offer one-stop holistic solutions like this.

The Siemens smart metering solution provides a future-oriented basis for tomorrow’s smart grid applications, which will help to handle the increased feed-in of renewables-based power. The core tasks include remote reading and management of all meters in a supply area. Gas and water meters communicate bidirectionally via smart Siemens AMIS meters. Existing ripple control systems can be replaced with the new technology. Furthermore, utilities can utilize the system to record network parameters such as over- and undervoltage, short-term and long-term failures, and power quality indicators from the medium-voltage network and at the end customers. On the basis of detailed information such as ground-fault and short-circuit displays, and measurable asset indicators, network operation as a whole can thus be optimized. Additional services such as gas and water metering are also possible.

With its smart metering portfolio Siemens thus meets the utility requirements at various levels in the value creation chain. A range of solution modules support network-wide process automation. This includes integration of the meters, data concentrators and transaction servers of the AMIS automated metering and information system, and the linking up of utility IT systems to the Energy IP data hub – the metering management system of Siemens’ partner eMeter. Solutions for telecontrol of the low-voltage network, monitoring of network quality and support for mass installation of electronic meters complement the portfolio. Special IT solutions ensure network-wide process integration in the branch IT solution SAP Utilities.

This integration is based on a service-oriented architecture, which exchanges measured data, alarms and control data bidirectionally between SAP, Energy IP and third-party systems such as load management, outage management or job order processing. The metering management system is the neural hub of the smart metering infrastructure. This data and process integration enables utilities to optimize their administrative business processes and at the same time to intensify customer support.

At Metering Europe in Vienna an exhibit showed how Siemens integrates the Energy IP metering management system as part of a holistic smart metering solution via the SAP-certified MDUS (Meter Data Unification and Synchronization) interface into an existing corporate IT environment. That applies both to Siemens AMIS smart meters and to the meters supplied by other manufacturers. One of the interfaces exhibited enabled a flow of information and transfer of commands between SAP and the metering management system, and another interface a flow of information in the direction of network planning.

With its network planning tool Sincal Siemens demonstrated in Vienna how the metering management system can use cumulative measured data instead of statistically postulated consumption data as real consumer load profiles for network planning and simulation in order to provide a more precise basis for computations. The use of actual consumption data will become even more necessary the more renewables-based power is fed into the grid and increased amounts of energy are drawn at night, for example to charge electric vehicles.

Energy-efficient ecofriendly solutions for smart grids are part of Siemens’ Environmental Portfolio. In fiscal 2009, revenue from the Portfolio totaled about EUR23 billion, making Siemens the world’s largest supplier of ecofriendly technologies. In the same period, the company’s products and solutions enabled customers to reduce their CO2 emissions by 210 million tons. This amount equals the combined annual CO2 emissions of New York, Tokyo, London and Berlin.