thanks, yes the sun is behind light cloud at the moment and I am getting enough that it is starting to recharge the battery, which went down to 30% overnight.
No trees overhanging the roof but I was wondering about salt build-up but I guess the rain keeps them clean enough. When I first came here there were solar panels and when the inverter failed they told me it was cheaper to take them down and replace with the set up I have now than to add to them but I asked what condition they were in and he said they were good.
My tenant, an American woman was only going to be here for a few months over Summer so I just added a small amount to the rent and provided the services but then the virus struck and she has been here ever since, fortunately she is not a big power user, and has been a very pleasant tenant, looking to find a spot in the bush now - she doesn't want to go back to America!