My daughter and I have a 6 KW solar panel system, inverter and battery on our 2 y old, sustainably built, all electric house (heat pump HWS, heat pump dryer, heat pump heating for a plunge pool, ceiling fans and 2 RC air cons). Our summer power bills are credits, or close too. The top winter bill was $130 for a month. With a future purchase of an EV in mind, we recently got a quote to install a further 3 KW of panels and inverter that would be connected to the existing system. It was $6000 - because we’re not entitled to subsidies this time. It sounds as if it would take a long time to pay itself off. What do you think?
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