Sizing Your Generator

When it comes to a generator – size matters.  Generators are rated in kilowatts (KW).  The greater the KW, the more household items you can power up.

You can use the table below to help ballpark the right size generator for your home or business. However, there’s no substitute for a load analysis by a knowledgeable professional to make sure you get the right-sized generator. 


​YOUR ELECTRICAL NEEDS
​8-14 KW
​15-25 KW

 ​26-48 KW
 ​49-150 KW
​Furnace Fan
 ​X
 ​X
 ​X
​For greater than 200-amp service in larger homes and small businesses
​Refrigerator/Freezer
 ​X
 ​X
 ​X
​Sump Pump
 ​X
 ​X
 ​X
​Lighting
 ​X
 ​X
 ​X
​Well Pump
 ​X
 ​X
 ​X
​Television/Radio
 ​X
 ​X
 ​X
​Computer
 ​X
 ​X
 ​X
​Garage Door Opener
 ​X
 ​X
 ​X
​Security Systerm
 ​
 ​X
 ​X
​Central A/C System
 ​
 ​X
 ​X
​Water Heater
 ​
 ​X
 ​X
​Washing Machine
 ​
 ​X
 ​X
​Electric Range
 ​
 ​X
 ​X
​Clothes Dryer
 ​
 ​
 ​X
​Dishwasher
 ​
 ​
 ​X
​Microwave Oven
 ​
 ​
 ​X
​Toaster Oven
 ​
 ​
 ​X
​Extensive Power Requirements
 ​
 ​
 ​X

This chart provides a rough sizing estimate. As always, the best way to determine your specific power needs is to consult a licensed professional.