1. Try the true north. without manual intervention my panels just stay covered and continue to accumulate snow over the year, until around May-June. If I had more property I would want to do a vertical setup though, if the panels were set vertical I think the snow would not be an issue. The biggest issue though is freezing rain. It creates a nasty crust of rough snow/ice and it just stays stuck on until June.

  2. The angle of the solar panels play into the speed and efficiency of how the snow comes off. I have solar panels on my garage roof and pole barn roof. My pole barn roof (32 panels) is about 18 degrees. The snow does not come off of these panels very well. My garage (18 panels) is a little steeper, around 22 degrees. I can get at the garage panels with a broom made for solar panels. With a little effort, I can clean these panels off. My pole barn on the other hand is too tall to get the panels clean. The snow can sit on these panels for quite a while. I do have a fix in the works. I put up a ground mount solar stand. This stand can adjust the angle of the panels. There is different angles for the various seasons. For Minneapolis they are, 22 degrees in Dec (Winter), 45 degrees in March and September (Spring and Fall) and 68 degrees in June (Summer). Plus having being able to change the angle of the panels, will increase the total solar output. In the winter with the ground mount solar panel system, the lowest panel is two feet off the ground. The snow on the panels can be easily cleaned off with a broom. plus with the steep winter angle, snow won't collect on them in any great depth. I live in a more rural setting in the east metro. This ground mount system does not work in all locations and some municipalities do not allow them. Plus a ground mount system adds to overall costs of a solar system. I do think solar is worth it.

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