I recently had a 6.6 kW solar PV system with a 5 kW inverter.installed. Keen to see how it would reduce my off-the-grid kWh usage, I read the solar meter 10 days after installation, and it indicated 340 kWh. Excellent I thought, that's about 40 kWh more than I would have used otherwise. I then looked at the usage data on my AGL account for the same 10 day period, which showed I had bought 262 kWh from the grid and sold 132 kWh to the grid. My question is, where did the additional 208 lWh (340 minus 132) go that I would have to pay for?