As you know solar panels need light from the sun for functioning.
Are solar panels efficient enough.
Via flickr under cc license.
Placing your solar panels in shade is one of the major factors that affect the efficiency of your solar systems.
Despite that did you know that most solar panels offer efficiency ratings of only 15 20 percent.
This is very normal for solar equipment and occurs with every system.
Do not expect them to work well without providing enough solar energy.
Today most solar providers guarantee that the panels will maintain at least 80 efficiency for 25 years.
This national renewable energy laboratory paper quotes studies that show how there is a gradual decline in the efficiency of solar panels over time.
Solar cells are bound to lose some efficiency as they age.
The highest efficiency solar panels on the market today can reach almost 23 percent efficiency.
Most of you know that solar panels are efficient enough to feed the needs of your whole home at least when your home is getting sufficient sunlight.
So to derive optimum output from your solar panels make sure they are not kept in shaded areas.
The skeptics among us will say wow these panels have a lot of room to become even more efficient.
If a solar panel has 20 percent efficiency that means it s capable of converting 20 percent of the sunshine hitting it into electricity.
This is also accounted for when we design your system.
The average efficiency of solar panels falls between the 17 to 19 percent efficiency range.