I bet there is a correlation between the money saved and the cost of the array in every market.
I've appraised 3 in the past month. 1.5mill, 1.8 mill, and 900k.
Most were newer in age panels 2-4 years old....60-80k cost. I applied a 20k adjustment.
These were large systems. Older and smaller systems can detract from value...
Not to bad of a trade off. The 20k is part of the mortgage, so on a 1.8 mill home it is spare change on the mortgage. The savings were about $400 per month.
***side that no one speaks about***
1. Did it really add value? Yes and no.
There are two players. Seller and buyer.
In a sellers market coupled with a low supply of homes, the seller can make the buyer pay extra for the solar panels. That's what I found out by interviewing the buyers agent on some of the sales. The buyer saw the panels as neutral or as a added feature, but we're forced to pay a premium for the solar panels. Multiple offer situation. The seller demanded a return...
2. Several of the other buyer agents said that there buyers were not looking or searching for homes with solar, but would be willing to pay a higher price for the home for the solar panels.
3. A few of the buyer...few..were actually searching for a home with solar.
4. 3 of the homes that I appraised were odd ball custom built homes with no direct sales to use. Therefore, when they close for comps, same situation
...no comps for match pairing.