That’s great ! The last one I looked at in CA they built with 2x3 walls and insulation was about R10. Maybe new ones in CA are better than that too.
If your electric is only 11 cents, then I’m envious. In CA, we have tiered pricing — the more you use the higher the rate — and my annual average is about 18 cents per kwh.
Our natural gas company (Center Point Energy) has tiered pricing. The more you use the higher rate per unit you pay. The state is thinking about going after them. They don’t take anything in to account like age of the home, size of the home, medical needs..
If you use more than X, you pay this..
Walmart and other large department stores get hit with the high rate no matter what since it’s based on a 1000 square foot home and what they think you should be using.
Mobile home instructional changed in the late 80’s when they started following normal building codes.