Oct 11, 2020 ยท The maximum amperage that a service panel may deliver at one time is marked on the main breaker. For most homes, a 100-amp main is sufficient to handle all electrical needs; however, many new-home builders now install 150-amp or 200-amp services to ensure plenty of capacity.. In the past, many homes could get away with using at most a 60 - 100 Amp service. But as technology evolves every day and homeowners are exposed to more and more appliances, 100 Amps can no longer cut it for most homes. Knowing if you can upgrade to a 200 Amp service panel involves considering a few key points. Stick with these lines to learn. Upgrading 100 Amp Electric Service Panel to 150 Amp Upgrading a Bulldog Pushmatic Electrical Service Panel: The exact Size and Type of conductors may be identified to see if they are rated for a higher amperage, however when upgrading to a higher amperage panel it is typical to install new service conductors. Electrical Video #1. "/>Material list for a 100 amp service