Problems with electric meter are very common and it is important to upgrade those panels to 100amps. or 200amps which is better. Capacity is one of the biggest differences between 100 and 200 amp panels. The larger the panel, the more electrical current your home can receive from the city’s power grid. This is important if you have a lot of electrical appliances in your home, like furnaces and stoves.Houses built in the ’40s and ’50s will typically have smaller services, 60 Amp is not uncommon. In the ’60s and ’70s, 100 Amp was common. And since the ’80s, 200 Amp is standard.