Concept Technologies | Renewable Power Solutions

OFF GRID LOAD CACLULATOR INSTRUCTIONS

NOTE: This calculator is intended for helping us design off-grid solar systems. If you need a grid-tie or utility interactive system, please contact our office for a quotation. For grid-tie systems, you will need to know the maximum amount of energy your home consumes during the year. For most people, this occurs during the summer months due to running an air conditioner. You can find this information on your electrical utility bill. If you have any questions regarding your utility bill, we are here to help!

Calculate your system load using the Load Calculator below.

Fill out each field for each appliance, if you are unsure about the wattage of your appliance, click on "Add Appliance From Load Chart" button to add that appliance from the list that we prepared for you, with estimated wattage.

Use "Add Appliance" to add an empty row, and the "X" button on the right to each row to delete that row.

You can save the calculation to your email by filling out the form underneath the Load Calculator and click on "Send" button. Fields marked with "*" are required.

Load Calculator
Appliance Quantity Watts Minutes On/Hour Hours On/Day Days On/Week Average Watt Hours/Day Max Watt Hours/Day  

Send the calculation to your email:

* Required

 
 
 
 


Load Chart
Appliance Watts Appliance Watts Appliance Watts
Air Conditioner (Central AC) 3500 0 12 Electric water heater (40 gal.) 5000 0 1 Vacuum cleaner 1220 0 1
DVD/Blu Ray player 30 0 1 Toaster 1100 0 1 60" Plasma flatscreen tv 165 0 1
60" LED flatscreen tv 75 0 1 50" Plasma flatscreen tv 109 0 1 50" LED flatscreen tv 60 0 1
40" Plasma flatscreen tv 60 0 1 40" LED flatscreen tv 45 0 1 Satellite receiver or cable box 35 0 1
RV water pump 100 0 1 Compact fluorescent bulb (CFL) 25 0 1 Air Conditioner (Window Unit) 1500 0 12
Smoke Detector 5 0 24 Cable Modem or DSL 6 0 24 150 watt incandescent bulb 150 0 1
100 watt incandescent bulb 100 0 1 75 watt incandescent bulb 75 0 1 60 watt incandescent bulb 60 0 1
50 watt incandescent bulb 50 0 1 30 watt incandescent bulb 30 0 1 LED light 15 0 1
30" LED flatscreen tv 35 0 1 20" LED flatscreen tv 25 0 1 Toaster oven 1250 0 1
RV furnace blower fan 100 0 1 House furnace blower fan 900 0 1 Window fan 150 0 1
Ceiling fan 120 0 1 Electric blanket 80 0 1 Dehumidifier 785 0 1
Dishwasher 1800 0 1 Natural gas clothes dryer 300 0 1 Electric clothes dryer 3400 0 1
Clothes washer 425 0 1 Coffee maker 1050 0 1 Clock radio 10 0 2
Hair dryer 1540 0 1 Laptop computer 50 0 1 Refrigerator (18 cubic ft.) 69 0 24
Home stereo 100 0 1 Game console (XBOX 360) 135 0 1 Computer monitor 150 0 1
Personal computer 250 0 1 Microwave oven 1000 15 0 Clothes iron 1400 0 1
Portable heater 1250 0 1 Hot plate 1200 0 1 Freezer (17 cubic ft.) 79 0 24
1/2 hp well pump 525 0 1 1/3 hp well pump 365 0 1 1 hp well pump 1050 0 1