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Submission + - How to monitor your electricity meter

knarf writes: Here in Sweden the former state power monopolist Vattenfall is currently replacing all electricity meters with remotely readable versions. They have chosen to use Echelon NES system components. Recently I got an EM-1023 Poly-Phase (PDF) installed which includes an ANSI C12.18 compliant infrared optical port.

The power company can now follow my electricity consumption from day to day and... so could I... if only I could interface to that meter. Which leads to my question: where can I find a reference implementation of the ANSI C12.18 (or similar PSEM) protocol? I have the specs and can write everything from scratch but why reinvent the wheel?

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