Every year I install this sunsail to shade my ac unit.
Shading the condenser unit keeps it cooler and increases it's efficiency and helps keeps my electricity costs down. The sail is high enough and mesh like so that it doesn't trap the hot air. In fact it creates a slight wind tunnel effect. The shade it provides lasts during the hottest part of the day and a tree helpfully blocks the sun for the remainder. The unit is never in full sun this way. Keeping the weeds and other debris away from the unit so that it gets good airflow and cleaning the condenser every year also help with the units efficiency.
Not all HOAs are bad... mine pretty much only exists to take care of our neighborhood pool, they've even loosened some of the few restrictions that had been in place since the 70s (restrictions on the type of fencing or sheds has been lifted). And it tends to run with a flat budget so our rates are very low for the area.
Oh, they also changed the bylaws so that further changes to the bylaws require 75% approval from all homeowners in the neighborhood. Karen's crew is going to have to do a lot of work if they want to make any significant changes.
I'm glad it's working out for you, but fuck if I'm about to pay some self appointment group to tell me what kind of fence or shed is unacceptable for me to own on my own property.
If I want to plop down a shopping container on my own front lawn, anyone who doesn't like it can kick rocks.
My neighborhood is just too dull to have one I guess. Although once per month the city workers come and pick up leaves and sticks if you place them by the curb, which is pretty exciting.