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Glossary

Most commercially available solar cells are capable of producing electricity for at least twenty years without a significant decrease in efficiency.

Many solar modules come with 5, 10, and even 20-year warranties. This speaks highly of their reliability.

Maintenance of solar panels is normally limited to tightening the electrical connections and mechanical mountings plus occasional cleaning of the surface when rain does not do that for you. Snow accumulation is not a problem in North Texas.

Battery systems do require extra maintenance and replacement every five-to-ten years.

In most this area, rainfall is sufficient to clean the panels. However, if you are in a very dusty area, such as a busy dirt road or urban area that is particularly dusty, or if you have many birds droppings or other debris on your panels, you may see improved performance from washing the panels monthly. 

If necessary, clean the panels with streaming water from a garden hose. Never walk on or over the panels to clean them. Never use metal, hard, or abrasive cleaning methods. Do not spray water on solar panels when they are very hot.

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