That's fair if you're talking about all utilities in the city. Sewer and water are the main problems in an urban environment. Rooftop solar on the other hand is dirt cheap and only slightly more complicated to install then plugging in a toaster.
Actually rooftop solar isn't dirt cheap where we are. And typically requires an electric service upgrade - you also need to make sure you aren't near the end of your roof life as you'll need to upgrade your roof as well.
I'm all for it where it makes sense but it isn't a blanket statement.