mspohr
Well-Known Member
My personal solar, hybrid inverter, battery systems (two houses) have paid for themselves in about 6 years.what? Faster payoff with batteries? Would like to see that math. Batteries double the price. A 6 to 8 year pay off is a pipe dream
And as their use of power from the grid declines and they get paid for excess power, customers generally expect to have their new solar system paid off in six to eight years, according to the utilities commission. It's faster for installations that include battery storage.
I have net metering 1:1 with no TOU.
I installed 5 arrays ( 3 to 5 kW) over the past 9 years with LiFePO4 batteries (total 30 kWh).
I am an electrical engineer so I was able to do most of this with DIY so I kept the cost down. I was also able to get a good deal on the batteries (about $110/kWh).
Bottom line is I"ve spent $21k (after credits) and generated $26k in electricity. Free electricity for the foreseeable future. (about 20 MWh/year)
If my local utility provider (Liberty Utilities) changes to TOU I expect to be able to earn more.
I've also installed solar(4.3 kW)/battery(40 kWh) at my office building which, thanks to generous subsidies and grants will cost me nothing.