No. Because each circuit isn’t being loaded to the max rating it’s protected for and all circuits are not being loaded to their max simultaneously. Also, a lot of electronics will draw more amps on initial power up and then settle down to lower levels. So a 15amp circuit (common size for receptacles and lighting) will usually only be using a portion of what it’s rated for unless the house wasn’t split up circuit wise correctly OR there is just way way too much on that circuit. Also, correct wire gauge that corresponds with the amp rating is very important. 15a circuits require 14g wire. 20a needs 12g and so on. That being said, people will replace a 15a circuit breaker to a 20a because they blow it all the time, not realizing that the wire can’t handle the excess power that it’s allowing to flow before blowing the breaker. This could cause dimming issues like you’re stating. It can also cause wire to overheat and cause a fire. I’m not saying any of this is your problem. But I am saying that your electrical service coming into house is just fine.

I just noticed you have a lot of those cheater breakers. Those suck unless absolutely needed. I would upgrade your panel to a larger one with more spaces. You don’t necessarily have to up the service coming into the house but I would get rid of those twin breakers. Just my two cents.

Not always. Usually if it’s over 30 spaces, then it’s a 200amp panel. His panel has 24 spaces which is usually a 100a service so I’m not sure if he actually has a 150a service panel. Bottom line, he needs an electrician over there to make sure everything is safe before it’s too late. He looks to be overloaded with all those cheater breakers.

This is a very good point as well. I’ve seen problems with power loss at the meter socket on the outside of the house before. This is where the power meets the panel. Over time the spade receivers that the meter socket snaps into can stretch open and lose a solid connection causing micro arcs, in turn not supplying full power to the panel. I know this from personal experience on a past house. I kept having phantom power issues at random times. I always thought it was the panel or bad breakers. Turns out it was a bad meter socket.