PASSIVE HOUSE - SHADING is the KEY
Designing Passive Houses is an interesting journey. While we can solve for cold climates pretty easy, solving for late summer, hot sun can be a challenge. Here's a solution we used on the Vineyard Passive House. The Louvered shades and hardware are "thumb clip" removal making it very easy to make them seasonal instruments. From October - April you let the sun shine in, and bring that heating energy too........rest of the year, well we shade it up......
I really need to do a Passive here in Austin!