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How to Choose the Right Home Generator: Start with Your Power Needs

South Shore Generator Sales & Service - Kohler Home Generator

Power outages can disrupt daily life, causing spoiled food, flooded basements, lost internet access, and even interruptions to essential medical equipment. Choosing the right home generator helps protect your household, but selecting one involves more than simply buying the largest unit available.

Know What You Want to Power

Before shopping for a generator, identify the appliances and systems you want to keep running during an outage.

  • Refrigerator and freezer
  • Furnace or boiler
  • Well or sump pump
  • Lighting
  • Wi-Fi and communication devices
  • Garage door opener
  • Medical equipment
  • Home office essentials
  • Air conditioning or electric range (if needed)

Once you've made your list, decide which level of backup power best fits your needs:

  • Essential-Circuit Backup – Powers only your most important appliances.
  • Managed Whole-Home Backup – Prioritizes critical circuits while managing larger electrical loads.
  • Whole-House Backup – Provides power to nearly your entire home for maximum convenience.

Choose the Right Generator Size

Generator capacity is measured in watts or kilowatts. While appliances have a running wattage, equipment with motors—such as pumps, HVAC systems, and refrigerators—also require additional startup (surge) power.

To properly size your generator:

  • Add the running wattage of the appliances you'll use simultaneously.
  • Account for the highest startup surge.
  • Avoid buying a generator that's significantly larger than necessary, as it increases installation, fuel, and maintenance costs.
  • Have a licensed generator professional perform a load calculation if your home has large electrical demands.

Portable vs. Standby Generators

Both generator types provide backup power, but they serve different needs.

Portable Generators

  • Lower upfront cost
  • Ideal for occasional outages
  • Require manual setup and fueling
  • Must always operate outdoors
  • May require extension cords or a transfer switch

Standby Generators

  • Permanently installed outside the home
  • Start automatically during an outage
  • Typically fueled by natural gas or propane
  • Connect through an automatic transfer switch
  • Excellent for frequent or extended power outages

Selecting the right generator starts with understanding your home's electrical needs and choosing a system that provides reliable backup without unnecessary expense.

Need help finding the right generator for your home? Contact South Shore Generator Sales & Service today to discuss the best backup power solution for your property.


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