I always think people go about this the wrong way!
Learn to conserve, fit led lights, learn to switch off items you aren't using, do you really need that chest freezer and air con everywhere?
I built my own 10 x 340w panels 25kbht, 5k5 hybrid inverter 13kbht, 6kwhr batteries 45kbht.
Shower heaters, air con and electric oven connected to grid, everything else on solar.
This runs 80% of my house, leaving me with a bill for 40-80 units/month and no power cuts when it's windy or raining.