Windows are great, but they can not perform the same insulative properties as thermal bridge mitigating walls. A triple pane window has an R-value of 7-8, a typical wall without a thermal envelope and thermal bridging mitigation is R13-23. With anti-hermal bridging and thermal envelope a wall can get to R40 or higher.
If you want the most energy efficient home, it would have no windows and multiple doors as entry points.
Windows are great, but they can not perform the same insulative properties as thermal bridge mitigating walls. A triple pane window has an R-value of 7-8, a typical wall without a thermal envelope and thermal bridging mitigation is R13-23. With anti-hermal bridging and thermal envelope a wall can get to R40 or higher.
If you want the most energy efficient home, it would have no windows and multiple doors as entry points.
Why multiple doors?