Well...its possible, but not cheap or easy...
First...reduce what you need...sound easy but its not.
Get a house blower door test done and after the findings, go for air sealing the house...(windows/doors etc...they will tell you)
Beef up insulation(better outsulation) if possible in same run(https://www.greenbuildingadvisor.com/article/installing-roxul-mineral-wool-on-exterior-walls
The Passive house standard is a good route to go, but pretty strict and hard to retrofit.
Trace down all your electrical need and reduce the amount needed...led's, high efficient devices, no standby, no power adapters online all day, ac only on need (passive house again)
Check your heating system...try to get one or run it on lowest temp...and if possible go with floor radiant...
And so on...this is just a short glimps where the travel goes...i am on same path right now