From July this year, energy companies can offer solar households and small businesses different rates depending on which time of day they put energy back into the grid.
Under changes to minimum feed-in tariffs, retailers will be able pay solar system owners either a single-rate tariff or time-varying tariff from 1 July 2018.
These feed-in tariffs are the proposed minimum rates that electricity retailers must pay for power that households and small businesses feed into the grid from their solar panels and other small scale renewable power generation.
It follows legislative amendments prompted by a major inquiry into distributed generation (solar and other forms of small scale energy generation).
Rates for the time-varying tariff are between 7.1 cents and 29 cents per kilowatt hour, depending on the time of day power is exported. The minimum price under the single-rate tariff is 9.9 cents per kilowatt hour.
The rates were calculated using methodology which considers:
forecast wholesale electricity market prices
distribution and transmission losses avoided by the supply of small renewable energy generation and
avoided social costs of carbon and avoided human health costs attributable to a reduction in air pollution.