New power meters with data feeds
These are pretty reasonably priced
http://www.currentcost.com/product-cc128.html
And have a USB cable option, that sends the display information out as an xml string. Shouldn't be difficult to graph and no wiring required :-)
http://www.currentcost.com/product-cc128.html
And have a USB cable option, that sends the display information out as an xml string. Shouldn't be difficult to graph and no wiring required :-)
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