Electrical and Energy

Residential Standby Generators serve two purposes; automatically starting in the event of a power outage and delivering essential electrical power to designated appliances, rooms, tools, and devices. There are several issues to consider when the decision comes down to choosing a residential standby generator versus a portable unit. They are:

1. The biggest difference between these types of generators from portable units, besides mobility, is that residential standby generators are generally designed to remain connected to the home's circuitry through the main electric panel. This allows for a generator to power up either automatically, via an automatic transfer switch, or by push button at the onset of a power outage. A portable unit, on the other hand, could require fueling, a rollout from storage, and connection to the home's circuitry. For a residential standby generator, an automatic switch to generated power normally takes between ten to thirty seconds. A push button start takes about the same time once the generator has been turned on. An added advantage to a residential standby generator is that the addition of a USB battery accessory can ensure that power remains on during the changeover to generated power. This is essential for a range of uses ranging from preserving data on a computer to delivering uninterrupted power to an at-home medical device.

2. Advances in portable power generation have increased power output levels to the point where power delivery can rival the smaller residential standby generators. Still, depending on power requirements and other factors, going with a stationary generator can be the logical choice. Here, there are two considerations, the first one being the power requirements for appliances, rooms, and devices which must remain on during an outage. Refrigerators and air conditioners, for example, require heavy wattage for both startup and running time. The addition of other power needs can easily mandate the higher power output of a residential standby generator. The second consideration is whether a generator which meets the needs of the home can easily be moved into place in the event of an outage. The weight of the unit, severity of local weather, and the difficulty of moving a portable from storage to the main electrical panel must be taken into account.

3. Another consideration is the expected run time of the generator. Smaller portable generators, for example, have run times at full capacity of approximately four hours. In an extended outage, a portable could require refueling several times. Under a variety of circumstances, this may not be an option. Residential standby generators, conversely, can be connected to a natural gas line, allowing for run times as long as power remains down and eliminating the need to refuel.