The single greatest safety feature of using a generator with an Automatic Transfer Switch is that it prevents back feeding electricity to the grid. When power to the main grid is restored, the automatic transfer switch prompts the generator to shut down and reconnects the facility to the main power grid. After the facility has been safely and completely cut off from the power grid, the switch prompts the generator to start and to start generating power to the facility’s electrical panel. How an Automatic Transfer Switch works is that the switch disconnects from a facility from the main utility power grid after a power outage. Backup generators are most commonly paired with an Automatic Transfer Switch, which prompts the standby generator to kick in within seconds of power loss due to power outage. Commercial generators, the size of the generator, along with fuel type determines what can be powered and for how long. When the generator is engaged, it will consume fuel (gas or propane) to provide electrical power to your home. When the outage ends, the generator goes back into standby, and you resume the use of utility power for your home.Ĭommercial standby generators are directly connected to a facility’s electrical panel and are powered by using an external fuel supply such as diesel or natural gas. Putting it into more simple words, a backup generator works with two major parts: it works with the generator itself and with a transfer switch. Maybe you think a generator might be a bit complex, or maybe that your home won’t really benefit from it. But if you’re delaying an installation, one of your reasons might be because you’re not sure how it all works. Many feel that generators are downright necessary, where outages aren’t all that uncommon. Unlike prime or continuous generators, standby generators are only used for situations such as power outages due to inclement weather, natural or man-made disasters, or regular blackouts due to the aging power grid. Standby generators are a robust solution that can provide power for days during extended power outages, depending on the fuel type and configuration of the generator. Backup generators are usually stationary and require a concrete pad used as a foundation usually situated outside a facility or home. So let’s see what a backup generator really is.Ī backup generator is a backup power solution that provides power to business operations and homes. Or for more choices, browse our extensive generator ratings.Ever wonder what a backup generator really is and how it works? No one really knows what it is and no one really thinks about it, but backup generators are for sure one of the most practical items you could have! If you think about it, whenever there is a storm or even a hurricane, a backup generator is for sure something that you would need (especially for those working from home). CR members can read on, below, for ratings and reviews of the top three models in each of the two categories. Our generator buying guide also offers insights on these and other types. Here, we catalog the pros and cons of each type of generator. Yet far more people choose portable generators for that simple reason: price. “If you can afford it, I’d tell you to pick a home standby generator every time.” “Home standby generators are expensive, but they’re the gold standard in backup power, and they outperform all other types of generators in our ratings,” says Dave Trezza, who conducts generator testing for Consumer Reports. Plus they run on natural gas or propane, which means they can operate for days or weeks on a full whole-house propane tank or indefinitely in the case of natural-gas versions. The advantages? They kick on automatically when the lights go out, and they can power everything in your home at once. Home standby generators, also called stationary generators or whole-house generators, are permanently installed by a pro and have insulated weatherproof housing that keeps them relatively quiet. If you use one during inclement weather, such as a rainstorm-probably during a power outage-you’ll need to protect your generator from the elements with a model-specific cover or a freestanding canopy. Portable models tend to be noisier and to produce less power than standby models, and they need to be wheeled out of storage, connected to your home’s circuit-breaker panel, and manually fired up in the event of an outage.
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