How would you expand an existing electrical panel?
I have a townhouse with a mix of electric and gas appliances. I don’t like combustion inside a home, so I plan to make some changes to eliminate the gas burners. (These units are all original to the home and nearing end-of-life.)
The townhouse has an 11-year-old 150 amp service with a couple of unused breaker slots. I know it won’t be enough for one or two new HVAC units (heat pumps, mini splits, or possibly ducted minis), an electric water heater (probably a 75 gallon Rheem Marathon but maybe also a heat pump unit), an induction cooktop, and a Level 2 charging station.
Would it make more sense to keep the existing panel and add a subpanel or swap the existing panel for a new 200 amp panel? Or is there are better way to expand the service?
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