I have a 100 amp panel and am thinking of upgrading to a 200 amp panel. However, they are saying, I will need trenching and 3 inch conduit.
Would it just be better to upgrade to a 125 amp?
To upgrade to a 200A service you would only need a 2 conduit if you are using copper conductors. If you were using aluminum conductors you would only need a 2 1/2 conduit. What load are you adding that requires you to upgrade your panel?
M&J Electric Inc.
thanks for posting on Trustedpros.
A load calculation is needed whenever there is electrical load being added to your electrical system. For example, adding a hot tub, EV charger, second kitchen or building an addition onto the house.
A licensed electrical contractor will know how to perform a load calculation, and they will know what items can be de-rated within this calculation.
There are times when a 125A upgrade is sufficient; most electrical load centers are already rated for 125A in which case all that may be needed is a new main breaker and perhaps an increase in line conductors.
Additionally, a load calculation can be based on actual usage as supplied by your local utility provider. Again, a licensed electrical contractor will know how to calculate peak usage from the data provided by the local utility.
There is a bit of math involved in both types of load calculations which is why contacting a licensed electrical contractor is the ideal way to go.
All the best.
From hydro to your meter in many situations the wire is already 3/0 which is rated for 200A. The wire from the meter base to your house is smaller but can in most situations be changed easily. For 200a panel you need a 2 conduit not a 3 . According to the Ontario electrical code 3- 3/O RW90 conductors are allowed in a 2 conduit. If hydro has room in the transformer to allow a 200a panel I would recommend a 200a vs a 125a. The cost is not much different, if 200a is not possible I then go with the 125a. I hope this was helpful, feel free to reach out if you have any more questions.
Search the TrustedPros directory and discover the best contractors in your area.Find your home service pro