All things Solar (merged threads)

[EgoFG]

Originally Posted by Stagg

Example 2

FiT is 10c/kWh, purchase rate is 20c/kWh

You sell 10kWh, you have made $1.

You purchase 5kWh, you have spent $1.

This method will mean that you will need a much larger system to offset your electricity bill, meaning a much larger system much larger upfront cost etc.

Whilst I see what you are getting at here, I think the conclusions may stop some from choosing Solar.

In NSW we pay 24c + GST (ish)
When there was a FIT of 66c (about 18 months ago) I could not cost justify the install.
Now with a FIT of 6c I can.
With the 66c FIT I was costing at the two "sweet spots" in the pricing - 1.5 kw, and 3.5 kw. The 3.5 KW had a slightly faster payback, but was a whole lot more expensive. the payback was over 6 years, with a buy in of over 3,000.

Now as time has progressed I purchased a 2.1 kw system for under $2000 with a payback under 5 years (prolly under 4)

So in my case the lower FIT is more easily justified as the install costs have responded to the drop in demand caused by the decrease in FIT.