Yes, but also... it's Texas, and a HVAC cooling a house by x °C is significantly more efficient (factor ~1:3 usually) than heating the same house by x °C. (Sinc

Yes, but also... it's Texas, and a HVAC cooling a house by x °C is significantly more efficient (factor ~1:3 usually) than heating the same house by x °C. (Since moving heat is more efficient than generating it...) So ... I don't think Texan climate can account for such a large difference in electricity consumption if the houses were equally well isolated? Presumably the cooling in the summer is the bigger problem & wasteful? (Yes, I don't really know... that's why I only pointed out that gas isn't involved without making further claims ;D)