Solar Calculator

Use the Roshanex solar calculator to estimate the solar panel, inverter and battery capacity your home, shop or office needs. First, add the appliances you want to run. Then choose your system type and backup hours, and the calculator shows a recommended system size.

How to Use the Solar Calculator

1. First, enter each appliance in the appliance load details, so the calculator knows your total connected load.
2. Next, choose the system type and the backup hours you need when there is no grid power.
3. Then fill in the customer details section.
4. Finally, read the estimated solar requirement at the bottom of the calculator.

What the Calculator Estimates

The result shows your total connected load, the recommended solar capacity, the recommended inverter capacity and the recommended battery capacity. For a hybrid system, the calculation uses your connected load, backup hours, battery charging needs, peak sun hours and system losses. As a result, you get a realistic starting point instead of a guess.

Tips Before You Buy a Solar System

• List the appliances that run at the same time, because they decide the inverter size.
• Think about load shedding in your area, since longer backup needs a bigger battery bank.
• Check your roof space before you choose the number of solar panels.
• Leave some room for growth if you plan to add an air conditioner or more appliances later.

The solar calculator gives an estimate, so our team can check it with you before you order. When you are ready, browse solar inverters, batteries and panels at Roshanex, or contact our team for help choosing the right system.