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What is a Gas Generator?

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  • Written By: Mary McMahon
  • Edited By: O. Wallace
  • Last Modified Date: 12 September 2016
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A gas generator is a device which burns gas to generate electricity. Gas generators can be seen in use in a number of different settings, and they are readily available around the world. Many hardware and home supply stores stock small gas generators, and larger versions are available from specialty companies and electricians who specialize in generator installation, maintenance, and repair. It is also possible to build a custom gas generator for a highly specialized application, such as supplying stable power to a server farm in a blackout.

The fuel burned in a gas generator varies. Gasoline is one option, as are propane, natural gas, and other gases, which may be derived from petroleum, created in a biogas generator, or produced as part of alternative fuel production. Biodiesel, for example, can be used as a fuel source for some gas generators.

The generator uses the fuel to generate mechanical energy which is converted into electrical energy. The amount of energy produced by the generator depends on the components and the amount of fuel used. Size can also be a limiting factor; the smaller the generator, the less energy it is capable of producing on demand.

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One common use for a gas powered generator is as a backup power source. When the electrical grid is not functioning or not accessible, a gas generator can used to supply all or part of the power needs for a structure or community. Many businesses regard gas generators as a necessary business expense, as they need a reliable source of power in the event of an outage in order to remain operational. This is especially true in businesses which handle perishables or rely on computer systems to function.

A gas generator can also be used as a primary power source in regions where electricity is not available or when people want to live off the grid. Some other uses include in fieldwork, where the generator is used to bring power to the field, and on tractor trailers which need electricity for cooling or other functions.

A basic portable gas generator like those available in many hardware stores can be enough to supply the power needs of a household. For a business, community, or large building, however, a custom system needs to be installed to meet power needs, especially if people want features like uninterrupted power supplies. An electrician can assess the given needs and recommend a product or system which can be used to provide primary or backup power.

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SarahSon
Post 3

Our house sits in a very low area that is easily flooded. If we lose electricity and our sump pumps quit working, we can have water in our basement in a short time.

It was a major expense, but we installed a whole house propane gas generator that will come on as soon as the electricity goes off. This runs off the propane in our propane tank.

Since this generator is big enough to run electricity for the whole house, it has been a big lifesaver. There have been many times that we have been very thankful that we had it installed.

andee
Post 2

We never seem to make it through a winter without losing electricity for a few hours to a few days.

Because of this we bought a generator to use for situations like this. This isn't a huge generator, so we are limited to the electricity we can use, but it is much better than not having any at all.

We live a few miles out of town and live on a dead end road. Many of our neighbors also have generators for this same reason.

It is not uncommon to drive down our road after a bad winter storm and hear many generators running at the same time.

honeybees
Post 1

We bought a portable Kubota gas generator when we bought our horse camper. We like to camp and trail ride, and some of the equestrian campgrounds we go to don't have electric hook ups.

We bought the generator thinking it would be nice to watch a movie in the evening, or use the air conditioner if it was really hot.

The only bad thing is that it can be pretty noisy, so we never really used it much when we went camping.

When you go camping to enjoy the peace and quiet, the last thing you or anyone else in the campground wants to hear is a loud generator running.

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