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Rental generators can preserve profitability in a power outage, but there are many factors to consider when renting. There are four main types of generators (from least powerful to most): recreational, emergency, professional, and industrial. Another relevant factor in selecting a generator is whether it is powered by diesel, natural gas, propane, or gasoline. Gasoline is generally only used in a recreational capacity. Because generators create heat, it is also important to determine if the unit is air-cooled or liquid cooled. Liquid cooling is primarily used in higher-strength generators and would be considered active, while air cooling is more passive. Choosing a generator size is best done by professionals, because the size is dependent on many external factors. Not least of these is the anticipated load on the machinery. Most professionals will use an aggregate load for calculations, based on historical usage, square footage, and mission-critical devices. The larger the unit, the more expensive, but this is not an area to skimp, because safety is also a paramount concern. A rented generator needs lots of space and ventilation to prevent issues greater than the original power outage. For most businesses, this is legwork that should be done before a need to rent a generator, so as to minimize business impact.

Key Takeaways:

  • Electrical generators are often used on temporary construction sites where permanent power hasn’t yet been installed, or on short-term occasions like community events or concerts.
  • All generators need cooling systems to prevent overheating; there are two types, air-cooled and liquid-cooled.
  • When one rents a generator, they need to consider the wattage, size, specific functions, cost, and electrical load of the generator.

“For most businesses, whether it’s a small commercial operation or a huge industrial facility, continuous and reliable electricity supply is the lifeblood of their bottom line.”