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Solar energy is receiving more and more attention these days. With so many people looking to go green, solar power has become an important issue. However, the fact of the matter is that the sun has been producing energy for billions of years. Humans have only recently begun to understand how to harness the rays of the sun that make it to the earth and convert them into energy. Since ancient times, people have been using sunlight to cultivate crops and building their homes in alignment with the sun to get more heat and light. In modern times, people have learned how to convert solar energy into other types of energy like heat and electricity.

There is certainly a lot of potential to develop this technology. Currently, most people are using solar energy by converting is into thermal energy or electricity. Thermal energy is used for heating purposes. We can use solar panels to heat water for homes, offices, and other suitable settings. For example, some people have a water tank hooked up to a solar panel on their roof. This system heats up water for warm showers and doing the dishes. It is a renewable source of heat that will help you save on your utility bill. Another common use of thermal energy is heating spaces like greenhouses, homes, and office buildings. Imagine being able to grow crops all year with a naturally warm greenhouse. Think of not having to pay high gas bills in the winter because of solar energy. These are just some of the benefits.

There are two ways to convert solar energy into electricity. First, you can use solar cells to convert sunlight directly into electricity. For instance, solar cells are used to power lighted road signs, watches, and street lamps. Other applications exist, but these are some of the more common ones in practice right now. We can also convert solar energy intro electricity indirectly in a solar power plant. The energy from the sun is used to heat up a fluid which produces steam. That steam is then utilized in a power generator. Steam power has been around for a while, so this is an interesting combination of two types of renewable energy.

Of course, there are a few disadvantages with solar energy. The amount of sunlight that the earth receives is not always constant. The level of solar power can depend on the weather sometimes. Also, because the sun’s rays do not give off that much energy in any one single spot, it is necessary to use a very big surface area to collect enough energy to be used on a larger scale. This technology will come in time, but for now there are still many practical uses of free solar energy.



Source by Valerie Uccellani

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