Are Solar Panels Dependable During The Winter?
Tuesday, May 18th, 2010You may be wondering how solar panels can work in an area that experiences long, harsh winters. After all, days or weeks of overcast skies, snow flurries or heavy rains hardly seem compatible with a technology that relies on the sun to run it.
However, there has been much innovation and progress in solar panel technology in the past 10 years. Now this technology is far enough along that solar panels can easily create electricity even during inclement weather conditions.
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Off grid systems should include a set of storage batteries (similar to a car battery) that are designed to store any excess power that your solar panels generate during the daytime. If your battery storage system is properly designed for your region, it will have enough of these batteries to store electricity for the number of overcast days that are usual for where you live.
If your system is tied to the grid (connected to the local electric company) it won’t require storage batteries. When the sun disappears at night, or there’s a interval of inclement weather where you don’t see the sun for days, your electrical system will automatically get electricity from your local power company. You’ll still be getting the benefit of lower power bills because on sunny days your electricity will be coming from your own solar panels.
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Some power companies may even allow you to sell electricity back to them. This is yet another way solar panels can prove cost effective. The way this operates is that any excess electricity that your solar panels generate flows back into the grid system and you are allowed a credit for it on your electric bill. So even when you need to use electricity from the grid at night or on overcast days, the excess that was produced by your solar panels will still be used to reduce your overall utility bill.

