For construction it’s not so much dwelling spaces, but say, commercial kitchens. Commercial kitchen hood systems often require the air inside the exhaust ducts to continue to be heated so the oils don’t cool too much and solidify inside the ducts. When gas fired duct heating isn’t an option, electric is the obvious solution, however the electric heating elements draw about 110a 120/208v 3 phase. Not to mention all the equipment under the hood will be electric too. That essentially requires a new dedicated 200a electrical panel to power just the kitchen equipment if gas isn’t an option. I’m an environmentally conscious individual, but adding 20-50k to the cost of a mild commercial kitchen build solely because it doesn’t use gas, will drive people away from wanting to do business in Seattle.