http://www.edn.com/blog/1470000147/post/1000040500.html
EDN.com - Newton,MA,USA
... every meter will need a current/voltage sensor (shunt, inductive, or Hall effect), a power backup battery/supercapacitor, and a communication interface. ...
2009/03/25
Google.org wants to organize your power usage statistics
http://www.edn.com/blog/1470000147/post/1000040500.html
EDN.com - Newton,MA,USA
... every meter will need a current/voltage sensor (shunt, inductive, or Hall effect), a power backup battery/supercapacitor, and a communication interface. ...
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