Upgrade from 100 AMP to 200Amp on 4 Unit

[Sean McKee]

Hello Everyone.

I’ll keep this pretty short. I have a 4 unit building (on the smaller side) with 100A for the main service. I’m not an expert on this, but I figured before I even bought that I might need to upgrade to 200A. I would like to just make sure it’s 100% necessary before doing it. There will be no central air conditioning, laundry or any other high powered electric. The units are pretty basic and will be kept so. Is 100A enough?