Let's play the IBDaMann is really stupid game.
This all started with the claim that solar panels wouldn't pay for themselves over 20 years without subsidies.
That claim is proven false because I can invest my money at 5% and still have more money than someone that didn't get solar panels. That would mean the panels pay for themselves compared to a middling return on an investment.
BUT... Let's look at the rest of the story!!
If you want to talk about how I was scammed then we get into "IBDaMann is an idiot" territory.
I paid $22,000 for solar panels and an upgrade on my service panel.
I got a 26% tax credit of which means I got $5,720 back at the end of the year.
I then get a $500 renewable producer payment from my utility company every year for 10 years.
With the credits and the producer payments, my actual cost for the solar panels was $11,280.
You know what? I clearly have something you don't have. More money after 20 years.
Let's use the S&P return for the last 20 years and use actual inflation. The average return for those 20 years is 11.09%
Year 1 (2002)- S&P drops 22.1% inflation is 1.6%
You invest $22,000 (We will assume you pay for your electricity out of pocket.) $1200 for electricity.
At the end of the year you have $17,138.00 in your investment
I invest my $5,720 tax credit and the $1700 I would have paid $0 for electricity. ($1200 in savings from electric bills, $500 from utility company)
At the end of the year, I have $5,780.18
Year 2 - S&P up 28.68%, inflation is 2.2%
You have $22053.18 in your investment account. Pay$1226.40 in electricity
I invest $1726.40 and have $9,659.47 in account
Year 3 - S&P up 10.88%, inflation at 2.7%
You have $24,452.56 in your account. You pay $1259.52 for electricity out of pocket
I invest $1,759.51 and have $12,661.36 in my account while paying zero for electricity
Year 5 - S&P up 15.79%, inflation at 3.2%
You have $29703.82 in your account. You pay $1344.01 for electricity out of pocket
I invest $1,844.01 and have $19,705.00 in my account while paying zero for electricity
Year 10 - S&P up 2.1%, inflation at 3.2%
You have $29,329.86 in your account. You pay $1497.70 for electricity out of pocket
I invest $1997.70 and have $30,322.77 in my account while paying zero for electricity (Last year I get the extra $500.)
OMG, I suddenly have more money in my investment account than you because I didn't lose as much in year 7 and kept contributing to get more gains in the next years.
Year 15 - S&P up 11.96%, inflation at 1.3%
You have $58,124.69 in your account. You pay $1599.02 for electricity out of pocket
I invest $1,599.02 and have $71,391.30 in my account while paying zero for electricity
Year 20 - S&P up 18.4%, inflation at 1.2%
You have $135,681.40 in your account. You pay $1803.25 for electricity out of pocket
I invest $1803.25 and have $182,020.00 in my account while paying zero for electricity
At year 20, you have paid $29,892.95 for electricity and have $135,681.40 in savings.
I have $182,020 in savings and paid $11,280 for my solar panels.
Who got scammed? It seems to be you because it looks like I have well over $60,000 more than you do based on the numbers.
Even if we use your a constant 12.9% interest per year, I still end up almost $50,000 ahead of you after getting panels and using the credits.