Ampere Panel
Electrical- Advantages of 200 amps vs. 125 amp panel?
Hi,
I need to install an electrical panel for my house. I am getting mixed information. I have been told that I need a 200 amp panel, and I have also been told I only need a 125 amp panel. What advantages would I have by putting in a 200 amp panel, besides be able to add circuits later. It seems like overkill to me. Thanks for your time.
pb4sc
The size of the electrical service for your house depends primarily on the loads that you have and any loads that you may plan to have in the future. If most of the major appliances in the house are gas (stove, oven, water heater, clothes dryer, air conditioner, forced air heater, hot tub/spa, etc) and the house is not a mansion, then 125 amps will usually do fine for most applications. If you do not plan to build a large shop with many large woodworking, welding, large air compressor, and metal machining tools, or add on a huge addition to the house, then 125 Amps should suffice. It will cost a little more for the 200 Amp electrical service(cost of panel, larger wire& conduit, etc.). If you plan to add more loads in the future, it would be most cost effective to install the 200 amp panel now, rather than to have to change it later. Some people feel that it adds to the value of your home to have the larger service installed(the vast majority of these folks never come anywhere near using 200amps unless the house is all electric). Most people these days tend to opt for the larger service just to allow for future use. I am an electrician and I have been doing electrical work for over 20 years, and I have wired many homes that have 100 amp or 125 amp services. My home has a 100 amp service and has never had a problem. I would need more info about the major electrical loads in your home to give you a more precise answer. The NEC (National Electrical Code) section 220 provides methods for calculating the service sizes(Simply adding up the total of the amp ratings of circuit breakers in the panel is Not the correct method). Also, panels (100a, 125a, 200a, etc.) do come in varying sizes (# of openings for circuit breakers), so you would not necessarily be limited by a 125 amp panel. I would recommend that you get bids on both the 125 amp and 200 amp panels. Talk to your electrical contractor to see what they recommend, and then make your decision. When in doubt, too big is better than too small. Good Luck!!
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