The disruption of power for substantial lengths of time can occur at any time due to hurricanes, earthquakes, fires, snowfall and other natural calamities. Having emergency backup power in such situations is not only essential for hospitals and commercial establishments but also in homes to run critical appliances like lights, refrigerators, heaters and medical equipment.

There are basically two types of generators that can be used in an emergency: portable and permanent standby generators. The main difference between the two is their output power and price.

In times of emergencies, portable generators provide the most economical way of supplying back up power. Appliances are directly plugged into the generator using the recommended extension cord or alternatively are connected to the home wiring system using a transfer switch. The generators come with an electric start or a pull start and loaded with many other features including the GFCI receptacles.

Portable and permanent generators come in varying sizes and types. There are some generators that supply 120 volts while others come with a 120 to 240 volts supply. Determining the right size and type of generator is important. This depends on the individual house owner