Every day over last 7 days bar one the SA electricity market has gone negative during day time and rest of the sunny time, very low +'ve prices due to high levels of wind. The one day power didn't go negative and remained above $50/MW, you guessed it there was minimal wind.When the sun peaks, my solar panels (and my parents with even more solar) go into full production (or what passes for full production in a non tracking system) we get paid 40c/kWh ($400/MWh) meanwhile the ‘market’ sells that energy for in the order of -$100/MWh who’s really paying for that? Thanks neighbours!Best I can get in Sydney is 27c/KWh. Good luck to you.
The current fixed price solar market is quickly becoming unsustainable and there will be further cuts of the fixed price in the next 12-18mths OR the market will be linked to the network price. This will encourage PV owners to use their own power by shifting demand where possible or install batteries which are slowly improving on price.
SA's typical 7pm price is between $100-350/MWh, so you could imagine being linked to the live price and being paid $0 or buying batteries and either using internally or selling at 40-60c/kWh may prove attractive for many and it won't take a govt subsidy.
My Bro in law in Brisbane sent me his solar data. He has a 6.6kW system with 5kW inverter. His panels face two directions due to house alignment. Even with this system he is using 6kW a day of direct solar output and buying 8kW off the grid at night. The 8kW is off-set by nearly 2-3 times the extra fed into the grid during the day.
When we went through his data if he had a 13kW battery, there would be around a total of 20 days a year he would need feed from the grid, mostly late Jan / early Feb. He also says the solar feed in tariff paid by the retailer is rising and well above the govt min rate, however I don't think this can last with Qld installing commercial solar farms and now wind. Again I give it another 2 years tops before the floor price is quietly removed or reduced.