Mr Purcell admits he initially bought his battery as a form of insurance against the volatility inherent in the spot market.
However, his thinking quickly changed when he saw the opportunities on offer, describing one instance in which he was able to fill up his 10-kilowatt-hour battery with electricity costing 1 cent per unit.
“That’s the opportunity and the risk on the very low prices,” he said.
"It cost me 10 cents to fill the battery during the middle of the day.
“And then at night-time the price went up over $10 a kilowatt hour, so I was able to export that same 10 kilowatts out of that battery for $100.”
Out of curiosity, what state are you in? A bad day for me sends my panels to near 0, but I am in Vic. A couple of rainy days and my battery will be empty. Good days will charge the battery and export 10-15kwh to the grid.
The big issue that I have is that my partner works from home, so on bad days her usage is swallowing a lot of the generated power. Not a lot i can do about that, i have made her setup as efficient as I can, but its always going to use more than just an idle house.