This kind of upgrade is usually required whenever the homeowner adds a room or remodels a kitchen. The reason that this upgrade is required is because the additional room or remodeled kitchen requires more electricity to operate properly and there usually isn’t sufficient room in the distribution box for the additional circuit breakers. There are special circuit breakers known as tandem circuit breakers that allow two circuit breakers in one location, but there are some severe limitations on the neutral bars, grounding, and the panel itself that can make this dangerous.