Solar panels are the most well known components of a solar power system. They convert the sun’s light into electricity.

How Many Solar Panels Do I Need?

The amount of electricity produced by a solar panel depends on:

  • the efficiency and quality of the solar panel itself
  • the quality of the installation
  • the climate and prevailing weather conditions.

Solar Panels ImageThe efficiency and quality of solar panels are critical for maximum electrical output. No system can exceed the output capability of the panels. Furthermore, panels degrade at different rates.

We recommend only the highest quality solar panels. They will last for 40 years and they have a manufacturer’s warrantee that assures a minumum of 80% output for 25 years. The system design needs to account for the quality of the panel and its expected loss of capacity. Give us a call or stop by our store in Searsport for more information about the quality of the solar panels we carry.

In order to get the best possible production out of your solar panels, they must be correctly installed. The installation must account for the seasonal variability of the solar angles at the site as well as the times of peak demand. In other words, summer homes have different demands that year round residences and panel location may be dictated by both aesthetic concerns and site considerations such as tree location or shading.

Maine Solar Panels

Finally, the efficiency of solar panels is impacted by both the climate and prevailing weather conditions. In Maine, our days are short during the winter months. If solar power is needed during this time, the solar panels need to be oriented for maximum efficiency during these months. In addition, panels are not as efficient on overcast days as they are on bright sunny days.

If you have any questions about solar panels, stop by and visit us in Searsport, Maine. We’d be happy to talk with you about solar energy!

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