We had to go solar last year due to our two hour per day power outages - 3,1 Kw array with 10Kw battery storage. I use about 800Kwh per month before solar was

We had to go solar last year due to our two hour per day power outages - 3,1 Kw array with 10Kw battery storage. I use about 800Kwh per month before solar was installed and now it is down to 400 Kwh - our biggest power usage is our water heater (geyser) but that is solar powered. Coolant is heated in vacuum tubes on the roof and then the heat exchanged with the water in the cylinder.