For the average homeowner, electrical panels are not very well understood. Since the job of an electrical panel is to deliver electricity, the common assumption is that if you need more electricity to support your household, you should just be able to add more circuits. This is incorrect, though.
This is only part of your electrical panel’s job. It also acts as a safety device, channeling the electrical flow into circuits so your home gets the amount of electricity that’s allowed by the panel. If your home doesn’t have enough electricity, then it’s time to upgrade your electrical panel, but how do you know when this time has come?