How dense your solar panels are will determine their efficiency. Getting high density solar panels may cost you quite a bit, but after a while they'll pay for themselves because they produce more power. Before you select your solar panels, you should consider panel density.
Solar panels are not very easy to install, so you should hire a professional to get the job done. While you will save a bit of money by trying to do it in your own, you do not want things to be less than perfect. Also, you will most likely end up paying someone to come out and fix the mess you made.
Remember that solar energy can do more than just power your lights. They can provide heat and warm up your water, too. Solar panels can make a significant impact in your overall energy bill. You don't want to be overpaying the power company.
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Know how light mixes with the trees around your property. You may think you've got the perfect spot for a solar panel, but watch it throughout the day. The sun coming in from different angles may lead to surprising shadows from trees and foliage. This will affect your solar output.
A sun tracker will increase your ability to capture solar energy. Through the tracker, your panels will constantly adjust to maintain maximum exposure to the sun. Though they cost more than fixed panels, the boost in energy production makes them worthwhile.