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by Symmetry 5206 days ago
Well, ZigBee is what most governments are pushing for smart girds, and isn't totally free it is an open standard that anyone can join. http://en.wikipedia.org/wiki/ZigBee

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1 comments
kiloaper 5206 days ago
2.4GHz doesn't sound like a great frequency for smart grids if the nodes are spaced far apart.
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Symmetry 5206 days ago
Yes, if I were appointed dictator of the world I would certainly arrange things so that another frequency could be used.
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kiloaper 5206 days ago
At least in Europe it appears 868MHz is gaining ground and now 169MHz is being considered.
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Symmetry 5206 days ago
Yeah, there are lots of frequencies that are good locally, but not many that are good globally. If there were frequencies that were even just good in three of the US, Europe, India, and China that would probably be good enough.
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