One of the biggest and best advantages of solar energy is that it does not release any harmful substances in the environment. Fossil fuels, which are used for regular energy, give off harmful substances, like carbon dioxide. In the end, these gasses can ruin the environment and harm animals and plants.
Using the energy of the sun is a clean way to power the things we use. It's also sustainable as the energy never runs out. One hopes that technology will continue to progress so that everyone can use this energy. For now, you're planning to use it yourself, and that is a step in the right direction.
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Always use non abrasive cleansers on your solar panels. An abrasive cleaner can scratch the surface of the panel and cause permanent damage and affect how well the solar panel works. There are commercial cleaning solutions to use or you can use a pool skimmer with a very soft cloth on it.