Explain solar energy in more than 200 words
Answers
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
It is an essential source of renewable energy, and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power. Active solar techniques include the use of photovoltaic systems, concentrated solar power, and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air.
The large magnitude of solar energy available makes it a highly appealing source of electricity. The United Nations Development Programme in its 2000 World Energy Assessment found that the annual potential of solar energy was 1,575–49,837 exajoules (EJ). This is several times larger than the total world energy consumption, which was 559.8 EJ in 2012
In 2011, the International Energy Agency said that "the development of affordable, inexhaustible and clean solar energy technologies will have huge longer-term benefits. It will increase countries' energy security through reliance on an indigenous, inexhaustible, and mostly import-independent resource, enhance sustainability, reduce pollution, lower the costs of mitigating global warming, and keep fossil fuel prices lower than otherwise. These advantages are global. Hence the additional costs of the incentives for early deployment should be considered learning investments; they must be wisely spent and need to be widely shared"
Answer:
Solar energy is a very popular form of energy nowadays. There are so many houses, shops, offices, schools, and colleges who use solar energy to fulfill their need for electricity. Solar energy is the energy which we get from the sun and converted into thermal or electrical energy with the help of photovoltaic cell. Solar energy is a renewable energy because it will never end as long as the sun remains. Solar energy also a pollution-free energy because there are no harmful gases, chemicals, fly ash produced during the production of solar energy.
When sunlight comes to earth and falls on a photovoltaic cell it generates electricity by an electronic process and the electric energy stores in the batteries in chemical process and can be used to supply power anything from a small electronic gadget such as calculators and road signs up to homes and large commercial businesses. As pollution is a very big problem in recent times so the Solar energy is producing a large number in many large countries to keep the environment clean and air pollution-free. Also, some countries announced that their citizens have to install the solar panels on the rooftop of their house or have to plant trees. Solar energy is not only pollution-free energy but also its maintenance cost is very low so to maintain a solar power plant less manpower is required than a thermal power plant. Also, one can set up solar panels on the rooftop of the house or office. To get rid of the pollution, which is a global problem in recent days and we need to shift from non-renewable energy to renewable energy like solar energy. If one sets up a solar panel in the rooftop of the house, office the annual charges of the electricity will reduce.
With all of these advantages, there are also some disadvantages when we use solar energy. The first disadvantage of using solar energy is that its initial setup cost is very high. To store the solar energy in a large number one needs a personal room for the batteries. If the solar panel damages one has to replace it with a new one if the warranty period of the panel expires, and the price of a new solar panel is high. When the batteries are damaged one has to replace the batteries and it will pollute the environment chemically because the batteries store the electrical energy in the chemical form. The changing cost of a battery is very high. If a person sets up solar panels in house or office, he must have to hire a solar panel specialist if there any problem occurs in the solar system. Even though there are some problems solar panels will save our money as well as the environment.
I hope this helps you please mark me as brainliest and follow me pls !