Hi,
I need to create a way to monitor 220 single phase power consumption.
I am currently logging this test with two Efergy E2 units (http://www.efergy.us/index.php/usa/products-usa/electricity-monitors/e2v2-wirelesss-monitor.html) and am disatified with the result. This system uses two E2s. each using 2 CT clamps, a transmitter and a receiver/datalogger to measure kWHs used by two PTAC (single room, through the wall, Air Conditioners) units in adjacent rooms and both rooms power delivered through the same power distribution panel.
I was planning to build an Arduino based system and post the results via imp to database but have seen references to an i2c chip based power monitor system.
Has anyone had any experience building such a system? It seems that I can