A modern house or building requires electricity to run many of its vital systems such as lighting,

Because so many of today’s heating, hot water, appliances, and air-co. appliances require electric power, some existing buildings do not have enough outlets or circuits to support the demands of modern electrical usage.  Buildings with insufficient electric service need not be very old.  Even a home built only 10 years ago may not have the electric wiring to support the today's needs.
 

without properly upgrading the electric wiring.  Even changing an electric oven to a self-cleaning electric oven may increase the electric loads to the point where the electric service needs to be upgraded.  If a homeowner adds appliances without upgrading the electric service, a hazardous condition may exist.  
 

There is a misconception that if a house has circuit breakers and has 100 amp, 220 volt service, the wiring and electric service is sufficient.  There is also a misconception that if a house has circuit breakers (and no fuses), that the electric service and electric wiring are sufficient.  If a house has large electrical loads such as air-conditioning or an appliance such Electric service insufficiency is often aggravated by homeowners who add appliances as an electric range, then 200 amp service may be required.

You can depend upon Austin Electric to assess the sufficiency of the electric service and electric wiring in your building.