Unclear. It may be a negative if it looks ugly or if it's an old system.
The complicated financing deals with some solar can also be a problem when you sell if you don't actually own the panels.
That used to be "common" knowledge with pools in my area as well... now they are a liability/nice-to-have based on one's perspective and don't add a dime to value.
Pools create costs, solar removes costs
I've always heard that pools decrease the home value.
How so? Unless you assume the buyer is too stupid to do the same math? Then you might as well go full-blown McMansion.
You can be guaranteed that most buyers don't do the same math. You see this all the time where e.g. things like extensions or other work adds substantially more value than they cost to carry out.