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Thanksgiving has a way of exposing electrical problems that stay hidden the rest of the year. The oven, two space heaters, a full kitchen of countertop appliances, and a house full of guests all pulling power at once puts a real load on a panel that's barely kept up all year. If a breaker trips the moment you turn on the mixer while the oven's running, that's not bad luck. It's your panel telling you something. Here's what the difference between a 100-amp and a 200-amp panel actually means, and how to tell which one you're dealing with.
What 100 Amps and 200 Amps Actually Mean
The amp rating on your panel is the total amount of electrical current your home can draw at one time. Homes built or last rewired before the 1990s in Marion, Muncie, Kokomo, and Warsaw were commonly built with 60 or 100-amp service, which was plenty for the appliance load of that era. A 200-amp panel roughly doubles that capacity. It's not just a bigger number, it's the difference between a home that can run central air, an electric range, a dryer, and a couple of space heaters simultaneously without strain, and one that's constantly asking you to choose.
Five Signs Your Electrical Panel Is Undersized
A panel that's reached its limit usually gives warning signs well before it fails outright. Watch for these:
- Breakers that trip repeatedly, especially when running more than one major appliance at once
- A panel that feels warm to the touch or makes a buzzing or humming sound
- Flickering or dimming lights when the AC, oven, or a large appliance kicks on
- A fuse box instead of breakers, meaning the panel predates modern safety standards entirely
- Any add-on you've wanted to make, like an EV charger, a hot tub, or a finished basement, that an electrician has told you your panel can't support
One or two of these on their own aren't necessarily urgent. Several at once, especially a breaker that won't stay reset, is a signal to get it looked at.
Why the Holidays Make This Worse
Your electrical panel doesn't have a bad day and recover. The load that trips a breaker on Thanksgiving is a load your panel is carrying year round, just usually under its limit until you add a few more appliances to the mix. Holiday cooking, extra lighting, guests charging devices, and cold-weather space heaters all stack on top of your home's baseline draw at the same time, which is exactly when an undersized panel shows itself. If this happens every year around the holidays, it's worth having it evaluated before next season rather than working around it again.
What a Panel Upgrade Actually Involves
Upgrading from a 100-amp panel to a 200-amp panel means installing a new panel and new breakers. The wiring already inside your walls stays exactly where it is, which is why this is a far smaller project than most homeowners assume. It does require a permit and an inspection in Indiana, since the work has to meet current code, and it typically takes a single day for a standard swap. Upgrading from a 100-amp to a 200-amp panel typically costs less than most homeowners expect. For the full pricing breakdown, see our electrical pricing guide.
FREQUENTLY ASKED QUESTIONS
Do I need a permit to upgrade my electrical panel in Indiana?
Yes. Indiana requires a permit for panel replacements and upgrades, which triggers an inspection confirming the work meets current code. This matters for your homeowners insurance and for the safety of everyone in the home. Knee's Electrical Service pulls all required permits as part of every panel job.
Can I upgrade my own electrical panel?
No. Panel work involves the main service connection to your home and carries serious shock and fire risk if done incorrectly. It also won't pass inspection without a licensed electrician's work, which can create problems when you sell the home or file an insurance claim.
What is a Federal Pacific panel, and why does it matter?
Federal Pacific panels were commonly installed in homes built between the 1950s and 1980s and are widely known for breakers that fail to trip during an overload, which is a fire risk rather than a minor inconvenience. If your home still has one, replacement is worth prioritizing over other electrical projects, regardless of whether you're experiencing symptoms yet.
How long does a panel upgrade take?
A standard panel replacement typically takes one day. More involved jobs, like a full service replacement including the meter and weatherhead, can take longer depending on what your home needs.
Noticed any of these signs at your Marion, Kokomo, Muncie, or Warsaw home? Call Knee's Electrical Service at (765) 201-7220 or schedule a panel evaluation online before the holidays are over.