Estimate the right inverter size for your home with CADEF RenewEnergy's free solar power calculator.
Add each device you plan to run — e.g. a freezer, fans, TV.
Check the manufacturer's label or your device's manual for watts.
How many units do you have? e.g. 2 ceiling fans.
Click the button to see your estimated inverter size in kVA.
This is an estimate. Contact our team for a full site assessment and precise system design.
Determine the right inverter size for your household by listing your appliances below.
A four-stage breakdown: size your inverter, battery bank, solar panels, and charge controller.
Add each device you plan to run on the solar system.
Check the manufacturer's label or manual for the wattage rating.
How many units of each appliance will be running simultaneously?
Get the inverter kVA recommendation with a 25% safety margin.
This is an estimate. Contact our team for a precise site assessment.
An inverter converts battery energy into usable AC power. Add your appliances to size it correctly.
Choose Lithium-ion, Gel, or Lead-acid — each has a different voltage and depth of discharge.
Input the battery capacity in ampere-hours (Ah), e.g. 200 Ah.
Set the % of your load to power and the backup duration needed.
Get a recommended battery count and total usable capacity.
Design a battery bank that matches your energy backup requirements.
Specify your total daily energy consumption in kWh.
Enter the wattage of the panels you plan to use, e.g. 300W.
See how many panels you need based on 5 peak sun hours and 80% efficiency.
Assumes 5 peak sun hours per day — typical for most of Nigeria.
Estimate the number of solar panels needed to generate sufficient daily energy.
Enter the total wattage of your solar panel array.
Input your battery bank voltage — 12V, 24V, or 48V.
Get the correct charge controller ampere rating and type (PWM or MPPT).
A 25% safety margin is applied to the calculated current.
The charge controller regulates power from your panels to the batteries, preventing overcharging.
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