Federal Pacific Panel Replacement Question
The issue is not so much adding load as it is addressing the Federal Pacific breaker issue and getting a better panel that is easier to work with, not so crowded, and one that I can add breakers to more easily. The house is 1800 sf, so relatively small. Oven is electric, and water heater, cooktop, and dryer are gas. No AC now but it will be added sometime in the future. I checked the feeder wire from the 100A breaker to the panel but can't tell the size, there are no visible markings. The feeder wires are aluminum and the outside diameter of the insulation is 7/16".
Sounds like you are advocating keeping the existing meter panel and exterior breakers and only upgrading the main panel, but I am curious what would make doing the full upgrade so much more expensive? The breaker panel is directly behind the meter box so the feeders only pass through the wall.