What is the difference between a Prime and Standby generator?

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  4. What is the difference between a Prime and Standby generator?

At WINCO Generators, our products are all commercial based and are designed for regular use. Just because the equipment is strong enough for every day use doesn’t necessarily mean that Uncle Sam will allow you to use all of our generators for everyday use.

STANDBY

  • Stationary – even when not in use.
  • Used to provide power when utility fails.
  • Only other time it runs, is for regular maintenance less than 100 hours a year.
  • We assume the load is variable.
  • Prime certified equipment may be used for standby applications.

PRIME

  • Mobile – It could be trailer mounted or just moved from place to place.
  • Used anytime when power hasn’t failed – even if it is not often.
  • We assume the load is variable.
  • Even though Winco standby generators are built strong enough for prime use the EPA prohibits their use in prime power applications in the USA.

CONTINUOUS

  • Constant load – battery chargers other.
  • Generally derate to 80% of the standby rating.
  • The continuous derate applies for the EPA Standby and EPA Prime applications.

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