Reading through the experiences had by those in my earlier links, I'm optimistic that it is not a great leap to take it from Elster specific meter reading to something more general purpose. I think the Elster meters must be compliant with DLMS COSEM and it was possible to reverse engineer what much of the information comprised of - with documentation I think it could be relatively easy to modify.
DLMS COSEM has different levels of what it allows - all we need is the equivalent of what the hand held meter readers have - to read consumption and some useful other information that seems to be broadcast. These meter readers must be capable of reading from multiple manufacturers' meters - that and the fact that GuruX seem to have an open source product advertising such a capability leads me to believe it can be done.
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