bobbiecool
New Member
Hi. I have a Growatt 500SPH inverter with a 6.5kw Growatt battery. In November last year I had 2 strings of 6 and 12 x 430W panels replaced under warranty. I have started to notice something odd these past 2 days, which have been very sunny. When I check the Growatt app to see how much power I'm generating (usually between 5 and 6.5kw) my load/usage increases the more the system produces, by roughly 400/700W. I first thought there's something in the house that's causing a higher than normal drain but nothing seems apparent. When the sun starts to go down and production drops so does my usage, down to about 800W from 1.2/1.4Kwph, which I found odd. I can only assume the system is drawing more electricity than normal. I'm wondering if it has anything to do with the warranty installation, as I never noticed this before. Any thoughts?