西门子公司在分布式能源控制领域的产品，Drastically rising energy production costs,
continuously increasing demand for environment-friendly
and reliable technologies, require rational and economic
usage of energy recourses. This creates objectives to
develop an advanced metering and energy control system
[1].
Rising energy consumption could be reduced by
optimizing the energy supply chain. This can be done in
many ways: creating more flexible and universal billing,
using real time control of building environment (heating,
air conditioning and ventilation, lighting, security, etc.) and
increasing measurement accuracy.
