Load Estimator

Calculate solar or wind off-grid system loads or perceived loads by entering information in the blanks. You may enter information about quantity, wattage, and number of hours of operation of each load per day. Make your way through the estimator by clicking on the equals button only for the loads you wish to calculate. When you have made it through all of your loads you may then estimate your load size at the bottom of this page.

Appliances

Item Quantity Watts Hrs/Day Watt Hrs/Day
Coffee Maker
Coffee Maker
Microwave
Microwave
Fridge
Fridge
Stove
Stove
Washer
Washer
Dryer
Dryer

General Household

Item Quantity Watts Hrs/Day Watt Hrs/Day
Vacuum
Vacuum
Hair Dryer
Hair Dryer
Air Conditioner
Air Conditioner
Water Heater
Water Heater
Water Pump
Water Pump

Entertainment

Item Quantity Watts Hrs/Day Watt Hrs/Day
TV
TV
DVD Player
DVD Player
Home Audio System
Home Audio System
Desktop Computer
Desktop Computer
Laptop
Laptop
Tablet
Tablet
Smart Phone
Smart Phone
Game Consoles
Game Consoles

Lighting

Item Quantity Watts Hrs/Day Watt Hrs/Day
Light Bulb
Light Bulb
Energy Efficient Light Bulb
Energy Efficient Light Bulb
LED Lighting
LED Lighting

Tools

Item Quantity Watts Hrs/Day Watt Hrs/Day
Power Tools
Power Tools

Additional Electrical Loads

Item
Quantity
Watts
Hrs/Day
Watt Hrs/Day

Watt Hrs/day

Total Connected Watts