Solar Energy Facts
Everyone Should Know

Many people know about solar energy but they do not quite understand the concept. Energy from the sun has been used for very many years now, both knowingly and unknowingly. One of the initial incidences when solar power was used was back in the 1800’s when explorers collected heat from the rays of the sun using a box and used it to cook. Solar power involves using power collected from the heat and light and using it for many uses in homes and at work. According to studies, a very tiny portion of the heat from the sun is actually being converted into energy. This has been blamed on lack of technology to collect the energy in certain countries although other people in developed countries simply do not feel the need to harness energy from the sun when they have many other sources of energy.

Generating energy from the sun involves the use of photovoltaics and heat engines. These technologies can be classified into passive and active technologies depending on the way they are used to collect energy and convert it to power. Calculators and watches are powered by the sun using photovoltaic devices or solar cells that are directly converted into electricity. Devices manufactured for collecting sun energy as well as photovoltaic devices are classified into active technologies while designs and building materials that make it easier for inhabitants to convert heat and light into energy are classified into passive technologies for harnessing energy from the sun. They are the specific designs incorporated into buildings to ensure that light is dispersed into most parts of a room.

There are many ways that people all over the world use solar energy. The most common application of solar energy is lighting.Incorporating skylights and windows when building reduces the amount of artificial lighting required in that building. Another common application is the use of solar heaters to heat water and also to heat up rooms.People also use solar water heaters to heat up swimming pools. Conversion of heat from the sun into electricity involves using solar panels and this is an active solar power collecting technology. However, there is a drawback involved in this technology in that certain parts of the world receive sun rays at certain times of the year based on the season, location and weather condition. This therefore means that people have to ensure they have collected as much energy as possible while the sun still shines.

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