What should be considered as a minimum requirement for service entrance equipment in a house?

The minimum requirement for service entrance equipment in a house should be 200 amperes capacity. A 200 amp service is generally considered to be the standard for modern residential homes, as it provides sufficient power to meet the demands of various electrical appliances, heating and cooling systems, and other equipment commonly used in today's households. This capacity ensures that a home can support increased electrical loads without the risk of overloading the system, which can lead to circuit breakers tripping or, worse, electrical fires.

Although 100 and 125 amp services might have sufficed for older homes or houses with minimal electrical demands, they are less capable of handling the energy requirements of newer technologies and appliances prevalent in contemporary living. A 150 amp service could potentially be adequate for some situations, but it does not provide the flexibility and safety margin that a 200 amp service allows, making 200 amperes the optimal choice for ensuring both functionality and safety in a modern home.