Don't assume that you have to live in the desert to use solar panels on your roof. If your roof expanse gets a minimum of five hours of direct sunlight on an average day, there is likely a solar panel installation that can generate electricity for your home or building.
Make sure to have your solar panels professionally installed. The installation of these panels needs to be very precise, and you do not want to mess it up. Having a professional installation also provides you with a warranty, and this gives you somewhere to turn if things are not working right.
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If you are buying a solar energy system, make sure your panels can be easily adjusted. As seasons change, so does the angle of the sun. Your panels will need to be adjusted every three months or so. Make sure that you know how to do this or talk to your contractor about seasonal maintenance.