Small-sized generators can be a great method to restore power when the power supply to your utility fails. They can also be utilized at construction and camping sites. There are areas where electricity from utilities is not accessible. A portable generator is a vital power backup for these locations. The source of power can be utilized to power electric appliances, tools and equipment. It is essential to understand the best way to select a portable generator as it is necessary to know some terms of electrical technology, like wattage or voltage.

The required Wattage

This is the main factor to think about when buying portable generators. Electrical appliances such as fans, bulbs, AC motors, and heating elements use an amount of energy when in operation. The specifications for wattage are written on the electrical appliances and it’s an excellent idea to estimate the total amount of wattage needed. Most commonly the CFL bulb can produce 15-25 watts, while the ceiling fan is 75 watts. Portable generators are not ideal for appliances that require a lot of energy such as electric furnaces.A site that sells this kind of generator offers a wattage calculator. A generator that is 3000-4000 watts is sufficient for a tiny home that requires three to four lights, a microwave, refrigerator, and TV. Generators are available in the range 3000-15,000 watts. There is no need to purchase an engine with a higher power that is needed as it will use more fuel.

Fuel Efficiency

They typically offer 10 hours of uninterrupted power when a tank is full. Generators that provide the most hours of power while using a minimal amount of fuel must be chosen because the ongoing cost of gasoline is often the largest expense associated with operating an engine. Generators that run on propane are also available. Buyers should look up local fuel prices before deciding which fuel type is more affordable.


The generators are equipped with small wheels on the bottom, so they are easy to move them to any location. However, certain generators with higher watts are very heavy and can’t be transported to a different location by just one person. If the generator is going to be used for camping or a construction site, the portability and weight of the generator must be assessed.

Simple or Inverter

Certain portable generators aren’t intended to operate sensitive electronic equipment such as computers. They produce fluctuations in current that are acceptable for most appliances, but they are not appropriate for devices which require continuous, stable power. In the case of sensitive equipment such as computers the inverter generator must be utilized.

Noise Level

In many residential zones there are strict council regulations and building codes in relation to the noise levels. A less noisy generator is less irritating for customers. Portable generators can be found with silent versions, too however these are more expensive.