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Does solar energy work in cold weather?

For photovoltaic (PV) system to work, all you need is unobstructed access to the sunlight for most or during the day. Climate is not really a concern, because PV systems are relatively unaffected by severe weather. In fact, some PV modules actually work better in colder weather. Most PV modules are angled to catch the sun’s rays, so any snow that collects on them usually melts quickly. There is enough sunlight to make solar energy systems useful and effective nearly everywhere in California.