HOW MANY PANELS
DO I NEED
The illustration below is a good but basic guide to help determining the system that is right for you.
Use our comprehensive solar calculator to get more accurate results
It is a very common practice for consumers to be installing a system slightly bigger than a size that would suffice during the daytime only. The reason is that if a bigger system is installed, it can produce power in excess of your daytime requirements. All of this excess power gets fed back into the grid for which you may be entitled to a credit. This credit can offset you night time usage partially or completely.
There may be some restrictions in your area in regard to the size of the system you can install.