Thanks Lester, some background is probably warrantedWe have had solar for some time (a Number of Years) we understand solar well and how it works benefits and downfalls, our system is modern and we have a close relation ship with our local sparky to keep across it. and have always tracked usage and work around peaks and troughs along with sunny and cloudy days and have ALL the apps and tracking of usage export etc and look at old bills etc... the cost has gone up exponentially (no surprise the ...