Can't see how it would work.
From the above site...I was looking at this too on another site
I think this site explains it a bit better.
I see how it can benefit the LL, but can't see how it provides any benefit to the tenant. If I was a potential tenant I think I'd just tell you shove it.The Owner provides power to the property through a combination of solar and grid supply.
The Tenants pay for all power used as they would normally do.
The Owner benefits by being paid the market rate for the solar electricity their tenants use. Everything leftover is then purchased from the owner by the grid; it?s a win-win solution.