Overview of the power characteristic of solar panels, common MPPT algorithms, and a simple low power reference design to maximize battery charging current.
Make sure to watch the light on your solar panel inverter regularly. Check it at least a couple of times a week, while sunlight is hitting your panels. The light should be green. If it is not, your panels might not be working correctly, and it is time to call in a technician.
Solar panels must be cleaned regularly. If your home is in a filthy region or close to the desert, they should be hosed weekly. Regardless of air born dirt and dust, you should do a through cleaning every couple months. Clean solar panels are productive solar panels.