Quote:
Originally Posted by SeeGeeWhy
Generously assuming no degradation on the panels for 20 years at that production rate, that's a lifetime production of 282,060kWh at a unit price of 16.5 cents/kWh. Over 3x what I was paying on an energy basis at the time, and still a good 50% higher than today's bum touching offer.
Again, what am I getting wrong about my math? Why is everyone saying this crap is cheap? It is NOT CHEAP.
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You can currently sell back to the grid at ~30 cents/kWh. You can also sell carbon credits.
Because the government is giving you an interest free loan, the absolute cost of the system is effectively way lower than your sticker price.
Also, initial install is going to be way more expensive than future panel/inverter replacement, so for your second panel lifespan (~25 years) your costs drop astronomically.
For the initial panel install, the math for most people up here reaches payout during the panel lifespan, even accounting for 85% degradation over 25 years. Would you be better throwing the money at the S&P financially? Yes. Is there some component of doing your part to solve a huge problem? I think so.
More importantly, it's a cool roof toy where you can stare at the app all day and check your stats.