![][1] Historically, PV modules installed in snowy climates have been part of small, off-grid arrays mounted at very steep tilt angles. This is done both to shed snow quickly and to maximise winter output. Unfortunately, this concedes too much annual energy to be a good design strategy for larger contemporary systems.
[1]: http://www.renewableenergyworld.com//assets/images/story/2012/6/15/body-wrap-up-solar-winter-output-assessment.jpg
URL: http://www.renewableenergyworld.com/rea/news/article/2012/06/wrap-up-solar-winter-output-assessment?cmpid=rss
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