Awnings have a nice property that fancy windows don’t: they can reduce heat gain in the summer while still allowing more heat gain in the winter. A nice south-facing window that lets the low winter sun in can provide a lot of desirable heat in the winter in a cold climate.
(Also, removing a given amount of summer heat via air conditioning is considerably cheaper than adding that same amount of winter heat via gas or heat pump in many climates, because the indoor-outdoor temperature difference is much higher in the winter.)
(Also, removing a given amount of summer heat via air conditioning is considerably cheaper than adding that same amount of winter heat via gas or heat pump in many climates, because the indoor-outdoor temperature difference is much higher in the winter.)