Systems that monitor and control energy distribution manage energy distribution or use for Energy Service Providers and end-users. A system includes a publicly or privately accessible distributed network, a network access device, and a management device. The network access device communicates with the...http://www.google.com.hk/patents/US20040174071?utm_source=gb-gplus-share專利 US20040174071 - System and method for monitoring and controlling energy distribution
