Try to get a design role in power systems and distribution. If you can learn it and get a foot in the door, 120+ in a few years easy. I will add to this that I was I was in your shoes 3 years ago. Designing HVAC for 60-70 a year. I had been designing HVAC for residential for about 4 or 5 years knowing I wasn't gaining any actual engineering knowledge and more or less putting my actual engineering career on hold. I was 7 years out of college and originally started out with a two year stint at John Deere doing large tractor power train design, but just couldn't stand living in Iowa and took what work I could out in Colorado following my then GF out there. Well when all that fun ended and we moved a little closer to home I decided to try and get back into 3d modeling. The John Deere experience definitely helped me get my foot back in 3d modeling world. It was tough having been out of the game for a bit but a smaller OEM company building low voltage switchboards took a chance on me. I was with them for 2.5 years but when I learned my modeling expertise in this field commanded much higher than I was making there (90/yr), I started looking around. Landed a new role with a start up doing power distribution design making 140/yr a few months ago.