Tax credit and low e glass
I'm wondering if someone can explain a way around the low e requirement for a replacement french door (Simpson fir) in a passive solar designed home? My doors face south, the overhang was designed so the sun (as much as it shines in the pacific nw) shines into the house in the winter only, when it is low in the sky. There is no direct sunlight in the summer; I don't require air conditioning as the house stays wonderfully cool in the summer. I don't WANT the winter solar rays blocked, but am being told that unless it is low e-glass it won't qualify for a tax credit. By the way, it is costing me an upgrade to get non-low e glass.
Any suggestions for taking the tax credit, or am I just s.o.l?