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Electrical Panel Upgrade · Wyoming
A panel upgrade replaces your breaker panel, and often the service entrance, so the home can safely carry more load: an EV charger, heat pump, induction range or addition. It always needs a permit, and usually needs the utility to disconnect and reconnect power.
Wind, cold and long service distances make reliable heating circuits and generators important.
Across the Mountain West, homes deal with dry air, large temperature swings, wildfire seasons and heavy snow at elevation. Permit offices, utilities and housing stock differ by city, which affects how electrical panel upgrade is planned and scheduled. These local guides cover the Wyoming cities where we have written specific notes.
Many Cheyenne homes in the Avenues and the older central neighborhoods have small services, and mid-century houses often have 100 amp panels that cannot handle a heat pump, an EV charger, a hot tub or a heated shop. Hail and wind damage service masts more than in most cities, so an upgrade is a good time to replace the mast and meter base too.
Utility: Black Hills Energy
Many Casper homes built during earlier oil booms have 100 amp panels that are already full, and adding a shop subpanel, a hot tub, an EV charger or electric heat usually means an upgrade. Some older houses near downtown and in North Casper have even smaller services.
Utility: Rocky Mountain Power
1. Load calculation
The electrician sizes the service from your existing and planned loads.
2. Permit and utility coordination
The permit is pulled and the utility schedules disconnect and reconnect.
3. Install the panel and service parts
New panel, breakers, grounding and bonding, and service conductors or meter base if needed.
4. Inspection
The local inspector checks the work before or after power is restored, depending on the jurisdiction.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Cheyenne: Electrical permits inside city limits come from the City of Cheyenne's building safety department; unincorporated Laramie County has its own process. Casper: Electrical permits inside city limits come from the City of Casper's community development department; Natrona County and nearby towns such as Mills and Evansville have their own process.
Cheyenne: Black Hills Energy. Casper: Rocky Mountain Power.
If you have 100 amps or less and are adding an EV charger, heat pump or electric range, or your panel is a Federal Pacific, Zinsco or fuse box, ask an electrician for a load calculation.
Usually most of one working day, depending on the scope and how quickly the utility reconnects.
Yes, in essentially every US jurisdiction. The electrician pulls it and schedules the inspection.
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