Hi Lester, thank you for your input.Bottom line, I think the most likely scenario is the CL metering is separate for your HWS and not affected by your solar production.My question worded differently is, when my solar is producing and power going back to the grid, if CL is switch on some of that power is diverted to the HWS by the smart meter as it is the device that switches the CL on. No power is coming from the grid, so why am i being charge for CL power ?I appreciate all the other information ...