Using this online solar calculator is extremely simple. All you need to do is input three basic details – your location, your monthly electricity bill and your electricity consumer category. And the solar calculator will provide you with an unbiased snapshot of your solar potential. After the snapshot is displayed, you can further indicate your electricity consumption pattern, your sanctioned load, your monthly electricity consumption or the diesel backup power that you must be using, to see the most close to true picture of what your savings would be like when you do go with a solar rooftop PV plant.