Solar feed-in tariffs is a rate paid for electricity sent sold back into the electricity grid, from any designated renewable energy output source such as a solar panel system or wind turbine.
Feed-in tariffs vary from state to state, look at the table below for an idea on rates to expect.
*Note that rates are dependent on the electricity retailor and apply to current installs, as of 2016 several legacy feed in tariffs rates ceased, and early adopters of solar would be paid current general rates.
*IMPORTANT – rates differ between time periods so please confirm with electricity retailor
A net feed-in tariff pays the PV system owner for excess energy they produce, but did not use. Gross feed-in tariff pays for each kilowatt hour of electricity produced by a grid connected system.
In most cases, systems installed for residential use would not be taxable whereas a system installed at a commercial site would. If it can be shown that the system installed was part of a profit-making scheme or in the nature of the business, receipts under the feed-in tariff would be considered assessable income while all expenses associated with the income generating activity would be deductible.
You would need to receive $75k per annum from revenue source to be required to register for GST. Businesses, however will need to pay/remit GST for their feed-tariff income.