What happens if it snows?

There are several aspects of a solar installation that resist and combat the accumulation of snow:

  • Almost all residential installations have panels installed at an angle. This allows gravity to do some of the work, letting the snow simply slide off.
  • The Tier 1 panels we use are manufactured with coatings that prevent the accumulation of snow
  • Heat produced by the panels can help the snow melt.
  • Sunlight can penetrate up to 2 inches of snow, so your panels can still be producing when covered. Once the snow cover gets thicker, the added weight will likely help it fall of as well.

Of course, there may be some instances when snow accumulates, at which point the panel won’t produce energy, but this doesn’t mean your system is useless. A study conducted at the Northern Alberta Institute of Technology (NAIT) showed that over an entire year, the accumulation of snow at most affected yearly produced by about 5%, assuming no snow removal at all. It is important to think of your yearly usage and production as opposed to just the snow-filled days.