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
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
General Household
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Entertainment
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Lighting
Quantity Watts Hours/day   Watt Hrs/day
Quantity Watts Hours/day   Watt Hrs/day
Tools
Quantity Watts Hours/day   Watt Hrs/day
Additional Electrical Loads
  Quantity Watts Hours/day   Watt Hrs/day
  Quantity Watts Hours/day   Watt Hrs/day
  Quantity Watts Hours/day   Watt Hrs/day
Load Size Watt Hrs/day Total Connected Watts Reset Print