The solar panels are the most important component of any solar power system. The proper sizing as per your load can solve your energy needs. The following points need to be considered before sizing the panels for your solar power system.

• Estimated load
• Average usage in hours during the day
• Average solar insolation of the area
• Battery backup required in hours

If you are going for off- grid solar power system then there should be a back up support to provide electricity during night or when sun light is less. Here comes the role of the battery, an ideal sizing of the battery as per your needs can solve your problem.

In order to receive the maximum solar energy, the PV modules should be faced at the right direction, aligned at the proper angle with respect to the horizontal surface of the earth and the right orientation. The sun's position with respect to the reference point on the earth is determined by the two parameters which are (i) sun altitude and (ii) the azimuth angle.