Your electrical panel is the heart of your home's electrical system. Every circuit in your house runs through it. And if you are thinking about adding solar panels, an EV charger, or if you live in a home built before the 1990s, there is a good chance your panel needs attention.
I am going to walk you through everything: what a panel upgrade actually involves, what it costs, how long it takes, when you genuinely need one, and when you do not. I will also cover the dangerous panel brands that should be replaced regardless of whether you are adding new loads.
Why Would You Need a Panel Upgrade?
The most common reasons I do panel upgrades in Utah:
- Adding solar: Solar systems backfeed through your panel. If your panel is 100A or does not have sufficient bus bar rating, you need an upgrade before solar can be installed. I assess this on every solar quote.
- Installing an EV charger: A Level 2 EV charger pulls 40-50 amps. If your panel is already near capacity, adding a 50A circuit could overload it. A load calculation tells us whether your existing panel can handle it.
- Aging home: Homes built in the 1960s-1980s often have 100A or even 60A panels. Modern electrical demand -- HVAC, kitchen appliances, laundry, computers, multiple TVs -- regularly exceeds what these panels were designed to handle.
- Dangerous panel brand: Federal Pacific and Zinsco panels are documented fire hazards. If your home has one, it should be replaced.
- Renovation or addition: Adding a basement apartment, ADU, or significant square footage often triggers a panel upgrade requirement per code.
- Code compliance: Utah adopted NEC 2023 for both residential and commercial work. If your panel is being worked on, certain code updates may be required.
What Does a Panel Upgrade Cost?
Through BYOP Electric, a 200A panel upgrade typically costs between $2,000 and $4,500. Here is what drives the variation:
| Scenario | Typical Cost |
|---|---|
| Panel swap only (same location, existing 200A service, new panel/breakers) | $2,000 - $2,800 |
| 100A to 200A upgrade (new meter base + service entrance cable + panel) | $3,000 - $4,000 |
| Panel relocation (moving panel to a different wall or from inside to outside) | $3,500 - $4,500 |
| 200A to 400A upgrade (dual 200A panels with 400A service) | $5,000 - $8,000 |
For comparison, some companies charge $5,000-$8,000 for a standard 200A upgrade. The difference is the same story as solar -- commissions, overhead, and margin stacking. A panel upgrade is a straightforward job for a licensed electrician, and the materials cost $500-$1,200 depending on the panel brand and meter base requirements.
What Is Actually Involved?
A panel upgrade is not just swapping a box. Here is the typical process:
- Load calculation: I calculate your home's actual electrical demand using NEC Article 220 methods. This determines the minimum service size you need -- 200A is standard for most modern homes, but some larger homes with multiple HVAC systems, hot tubs, and EV chargers may need 400A.
- Permit application: I pull the electrical permit from your local jurisdiction. Utah requires permits for all panel upgrades, and the work must pass final inspection.
- Utility coordination: If the meter base or service entrance needs to change, Rocky Mountain Power needs to disconnect and reconnect your service. I coordinate this scheduling.
- Installation: This is the actual work day. I disconnect the existing panel, install the new panel (and meter base if needed), transfer all existing circuits, label everything per NEC 2023 requirements, and torque all connections to spec.
- Inspection: The local building inspector verifies the work meets NEC 2023 code. I schedule and attend this inspection.
- Utility reconnection: If the meter was pulled, RMP reconnects and you are back in service.
How Long Does It Take?
The installation itself takes 4-8 hours for a standard 200A upgrade. Your power will be off for most of that time -- typically 4-6 hours.
The full timeline from first call to finished inspection is usually 1-3 weeks, depending on permit processing times in your jurisdiction and utility scheduling. Some jurisdictions issue permits same-day; others take a week.
100A vs 200A vs 400A: What Do You Need?
100A panels are found in older homes and are generally inadequate for modern electrical demand. If you have a 100A panel, upgrading to 200A is almost always the right move -- especially if you are adding solar, an EV charger, or any significant electrical load.
200A panels are the current standard for residential homes. A 200A panel handles most homes comfortably, including solar, an EV charger, central HVAC, electric range, and electric dryer. This is what I install in the vast majority of upgrades.
400A service is reserved for larger homes or homes with exceptionally high electrical demand -- think multiple HVAC systems, a large solar array, multiple EV chargers, a pool, a hot tub, and a workshop. A 400A service is typically configured as two 200A panels fed from a 400A meter base. Cost is significantly higher, and most homes do not need it.
When You Do NOT Need a Panel Upgrade
I talk homeowners out of unnecessary panel upgrades regularly. Here are situations where you probably do not need one:
- You already have 200A service with available spaces: If your panel has a 200A bus bar and open breaker slots, you likely have capacity for solar or an EV charger without replacing the panel. A load calculation confirms this.
- You just want to add one 20A circuit: Adding a single circuit for an outlet or dedicated appliance does not require a panel upgrade if you have available space and capacity.
- Your panel is old but in good condition: Age alone is not a reason to upgrade, unless it is a dangerous brand (Federal Pacific, Zinsco). A well-maintained 200A panel from the 1990s is perfectly functional.
- You are adding a small solar system: Systems under 5kW can often be accommodated on existing panels with proper load calculations and potentially a line-side tap.
If another electrician tells you that you need a panel upgrade without running a load calculation, get a second opinion. The load calculation is the only way to know for certain.
Dangerous Panel Brands: Federal Pacific and Zinsco
This is the one situation where I will tell you to upgrade your panel even if you are not adding any new loads.
Federal Pacific Electric (FPE) Stab-Lok panels have been documented to fail at alarming rates. Independent testing has shown that FPE breakers fail to trip during overcurrent conditions up to 30% of the time. When a breaker does not trip, wires overheat and fires start. The Consumer Product Safety Commission investigated FPE extensively, and these panels are considered a known hazard.
Zinsco (also branded as GTE Sylvania) panels have a similar problem. The breakers can melt to the bus bar, making them impossible to trip even when there is a dead short. I have personally opened Zinsco panels and found breakers fused in place with visible burn marks.
If you open your panel and see either of these brand names, call a licensed electrician. Not next month -- soon. These are genuine fire hazards, and homeowner's insurance companies are increasingly declining to cover homes with these panels.
Utah NEC 2023 Requirements
Utah has adopted NEC 2023 for both residential and commercial electrical work. When I perform a panel upgrade, I bring the panel into full compliance with current code. Key NEC 2023 requirements that affect panel upgrades include:
- Arc-fault protection (AFCI): Required on most branch circuits including bedrooms, living areas, hallways, and kitchens
- Ground-fault protection (GFCI): Expanded to cover more areas including laundry, dishwasher, and all 250V receptacles in certain locations
- Surge protection: NEC 2023 requires a Type 2 surge protective device (SPD) on all dwelling unit services -- this is a new requirement that gets added during every panel upgrade
- Circuit directory: Every circuit must be clearly labeled and legible
- Working clearance: The panel must have proper clearance in front (36 inches minimum) and adequate lighting
The BYOP Approach
I approach every panel upgrade as an engineer first. Before quoting a price, I run a proper NEC Article 220 load calculation on your home. This tells me exactly what service size you need -- not a guess, not a one-size-fits-all recommendation.
I use quality panels (typically Square D or Eaton), torque every connection to manufacturer spec, and label every circuit clearly. The work gets inspected by the local authority having jurisdiction, and I do not consider the job done until it passes.
I handle the entire process: load calculation, permit, utility coordination, installation, and inspection. You do not need to coordinate anything -- just tell me your availability for the install day.
If you are considering a panel upgrade alongside solar or an EV charger installation, I can bundle the work to minimize your total cost and the number of days your power needs to be off. That is one of the advantages of working with a single contractor who handles all residential electrical work.