Considerations When Mounting Solar Panels

by Walter Hull

Once the decision is made to install solar panels, one must determine how to mount them effectively. The mounting system should be simple, reliable, and provide for all your performance needs.

Solar panels are often mounted on roof tops, because the roof structure is strong and already exists. If your roof is sloped in the right direction, then how convenient this is. And convenience is a legitimate player in any decision making process.

We would like to point out a couple issues with mounting solar panels on the roof, however. They are things to keep in mind for folks who live in northern climates, or who desire more optimal performance.

The first thing to think about is snow. Every time snow gets on the solar panels, they have to be cleaned or they won’t put out much electricity. If your solar panels are mounted to your roof then you can imagine this difficulty.

Those of us with this problem, then, might consider other ways to mount our solar panels. We have come up with one such design called the Rotek system. It was developed on homesteads in the mountains of Idaho and Colorado, where we receive plenty of sun and plenty of snow.

In a Rotek installation, the solar panels are mounted on a ground based structure instead of the roof. This provides the clearances for adjustability, so that we can rotate the solar panels in any way. With this in place we can make seasonal adjustments to match the Sun.

In the Winter is when this adjustability can be a big help. The solar panels can be pitched more steeply or rotated toward the ground (negative tilt) to keep the snow off the surface. It is also good for giving the glass an occasional cleaning.

Many of us know that orienting the panel with a negative tilt is not the best thing for tracking the Sun. But keep in mind the snow pack’s high reflectivity. As long as the ground has snow cover, the panels will receive this reflected radiation. The losses, therefore, are not that great. Whether after a snow storm, or after the worst weeks of Winter are done, the solar panels can be oriented back to the normal tracking angle whenever desired.

A second big issue with solar panels is their operating temperature. The cooler the panels, the more we maximize their discharge current. Roof mounted solar panels acquire much more heat, and the amount of energy lost at these higher temperatures can be as high as 20%.

Remotely mounted solar panels with Rotek system will dissipate heat, run cooler, and give you better performance. This is because of fresh air circulating on the back end, instead of a warm insulated roof. This reduced operating temperature will also decrease wear and tear and help increase the longevity of your system.

Sooner or later the time will come to install your solar panels. The roof installed units will make a lot of sense, but those who want improved performance and adjustability should consider other options. The Rotek system is one such option, easy to install and simple to use without the extravagant cost.

About the Author:
Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages.
  • del.icio.us
  • digg
  • Fark
  • Furl
  • Ma.gnolia
  • Reddit
  • StumbleUpon
  • Taggly
  • Technorati
  • YahooMyWeb

Leave a Reply

Related Posts from the Past: