Generators | National Grid
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Purchasing a Generator

Many technical considerations go into finding the right generator for your home or business. We recommend consulting a professional before you buy. A licensed electrician can determine your home’s power requirements, address safety concerns, and perform installations for you. Learn more in our Operating Generators for Standby Power brochure.



 

Maintaining a Generator

Annual maintenance is the best way to ensure you will have power when you need it. If you bought a generator several years ago and have not used it since, it may not work in an emergency. Don’t wait until a storm hits to find that out. Perform these regular maintenance checks:

  • Change the oil periodically or after several hours of operation.
  • To prevent clogs, drain the fuel completely or treat it with a fuel stabilizer if the engine is going to be idle for an extended period of time.
  • Periodically start the generator to make sure that the unit starts easily and that all components are working
  • Check that your electrical cords are clean, neatly coiled up, and regularly inspected for damaged insulation and connectors.
  • Store surplus gasoline in approved containers. Keep in mind that a generator that is capable of supplying the electrical needs of a household can consume up to 25 gallons of fuel in a 24-hour period.
  • Avoid fire or explosion by refueling the generator in a well-ventilated area, and avoid spilling fuel on hot engine parts.