Free solar planning tool
Solar Load Calculator
Estimate connected appliance load and backup energy requirement before selecting an inverter and battery.
Your appliances
Enter the number of appliances that may run together.
80W each
20W each
180W average
1,200W estimate
1,800W estimate
150W each
1,500W estimate
Desired duration
Common questions
Before choosing a system
Does the calculator include starting surge?
No. AC compressors, refrigerators and water pumps can require higher starting power. Final inverter sizing should include surge capacity.
Is calculated kWh equal to battery size?
Not exactly. Battery selection should also account for usable depth of discharge, inverter loss, reserve margin and battery voltage.
Can I send this result for a quotation?
Yes. Use the WhatsApp button and share your appliance usage pattern for a more accurate recommendation.