When sunlight hits solar panels, it knocks out electrons out of silicone (material solar cells are made of), forcing them to move and create electric current (Direct Current). It then needs to be converted into AC (Alternating Current) with the help of an inverter, so it can be used in our house to power up lights or appliances or be sent back to the grid. Some of advantages of solar energy include sustainability, very little maintenance, high reliability and quiet operation.
To calculate your solar panel payback period, you need to determine the combined costs and annual benefits of going solar. The components you need to consider include the total cost of installing a solar panel system; value of any financial incentives you may qualify for; your average monthly electricity use; and your estimated energy generation.
There are three main factors that determine the size of solar system you’ll need:
A qualified installer can work with you to help you figure out the appropriately sized system for your home.