We bought house in 2012 with 2kw system already fitted we get a great feed in tariff so takes the edge off but large 2 storey house pool 3 phase a/c and a lot of welding. Lucky we get 44c govt feeding and 14c from energy ausyralia but can't expand unit or we go to 6c
That's a good feed in rate.
Our place already had the system installed when we bought it. I'm not sure what size it is but it only has 8 panels so not a big one. It was initially installled by the previous owners in 2011 and gets a total of 47.135c p/kwh feed in tariff until 2021.
In the warmer months, we are feeding in somewehere between 220 - 250 kwh on our two monthy bill. This drops to low to mid 100s kwh during the cooler months.
We have 4 split system a/c units, multiple TVs etc. Gas hot water and cooking though. No poool or other such fancy toys.
Leading up to our feed in agreement expiring in 2021, I'll be looking into options for expansion and battery which should be a great deal cheaper by then.