Industry has the same issue, mutatis mutandis. The company across the backyard from me has a five- and six-floor complex of buildings close next to one of the central transport hubs, where it makes hightech radio parts. A nice central place to work, but not even nearly big enough to generate significant renewable power.
The school in the next street is similar: Five floors, very central, but that site will neither generate sun or wind power. It was rebuilt recently. If it were to generate it own power, that renovation would have been a a relocation to one of those spread-out lowrise buildings in suburbia.
