The modularity of the ECM-1240 lends itself to monitoring at various points of a home. One or two ECM-1240 devices may be dedicated to monitoring a main panel and an additional ECM-1240 can monitor a remote sub panel. Can the ECM-1240 do “net” metering? Yes. If you have a grid-tied inverter from a renewable energy source such as solar or wind, the ECM-1240 can be connected to monitor the main panel and inverter (plus other loads). The resulting data obtained will be:
• “Net” power (energy bought – energy sold)
• Energy sold
• Energy purchased
• Energy generated
• Energy consumed by home loads.
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