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Diesel Generator Sizing Calculator

 

Properly sizing a generator can be difficult. We understand that not everyone's energy needs are the same. Just because your neighbor has a 20 kW diesel generator does not mean you need a 20 kW as well.

 

For example, if you have a shop with 240V equipment, you will definitely need a bigger generator. Also, keep in mind that most 240V equipment will surge and therefore have a higher starting draw than its running draw. This means that even though your AC unit is rated at 3500 watts, it might need 9000 watts to start so a 5 kW generator will not be able to start your AC unit.

 

*LEGAL DISCLAIMER: Hardy Diesel's Generator Sizing Calculator is a tool that helps estimate your energy needs; however, there are many ofther factors that need to be accounted for and it's always a good idea to seek help from a certified electrician. Please take the time to complete the calculator in its entirety. We have provided extra spaces for items we might have missed. The more information you put down, the better the results. At the end of the form, click on "EVALUATE" to receive a detailed report. Contact a Hardy Diesel Representative at 800-341-7027 if you have any comments or questions.

Have a Question?  Need Some Help?
Please Call 800-341-7027
We can help size and pare the best generator for your application.
120/240V Starting Watts: Running Watts:
Please list all your major 120V and 240V loads that could possibly come on after a power outtage.
Air Conditioner *1 ton AC is approx 12,000 BTU/Hr
Water Heater
Electric Washer
Clothes Dryer
Well Pump
Booster Pump
Inverter Qty * If your inverter is not listed, please include it below
Inverter model: Qty ................ Max AC Current
Please add additional items below
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Kitchen Appliances:
Refrigerator Combo
Standalone Freezer
Stove
Oven
Toaster
Microwave
Include Standard Coffee maker
Include Blender
Include Juice Maker
Please add additional appliances below
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Lighting:
# of Bulbs Type
# of Bulbs Type
# of Bulbs Type
# of Bulbs Type
# of Bulbs Type
If you have other lighting sources, list them below.
# of Bulbs Type Wattage
# of Bulbs Type Wattage
# of Bulbs Type Wattage
# of Bulbs Type Wattage
# of Bulbs Type Wattage
Household Items:
Include Clock Radio
Include Computer(s) and / or Laptop(s)
Include Home theater Audio
Include Satellite Dish
Include Ceiling Fan
Portable Fan
Televisions
Vacuum Cleaner
Please add any extra household items below
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Quantity Name: Wattage
Generator Sizing Results:
Thank you for taking the time to complete our Generator Sizing Calculator.