discursive essay 500 words

"There are both advantages and disadvantages to the use of renewable sources of energy."

"Renewable energy is energy that is generated from natural processes that are continuously replenished"(LLC,2014). Natural resources such as sunlight, rain, tides, ocean, wind, heat, biomass, geothermal, fossil- are naturally replenished. There are many natural energy resources which are limited in supply such as natural gas, oil, coal. But these sources only can fulfil our demands for next fifty to sixty years. As alternative to these energy there is renewable energy. It is very important nowadays as it brings a positive environmental impact, development in the economy, energy security for a bright future. These are some types of sustainable energy already mentioned.This essay is going to focusing on solar panel and will also discuss the cost, the use of facilities, energy storage and also the negative effects of using solar panel such as weather problem, it controlled by geography, need more space, sunlight is weak energy.

Solar panel is one of the most important renewable energy. There are some positive sides of using solar panel. First of all solar panel has inexhaustible production of energy. From sun the earth gets infinite supply of solar energy. It gives an incredible source of energy within 1 minute to produce 1 year energy for the world. "In one day it provides more energy than our current population would consume in 27 years" (DMCA,2005). The solar panel does not pollute the environment. It is clean and friendly renewable source of energy. As the system can fix into existing buildings so it does not affect land use. Solar panel is greatly reduce contributing to global warming. Human activity is overloading worlds atmosphere with global warming, which creates heats, drive up the worlds temperature. It comes from photovoltaic effect which creates energy, as it does not pollute environment, gives health and safety benefits and is influencing people worldwide. Solar energy originates from thermonuclear fusion reactions occurring in the sun. It is cheap comparing other renewable energy. It needs less equipment, does not need some expensive natural resources like coal, oil, gas.

There are also some demerits of using solar panel.It can impact on developing countries. With technology to harness solar energy still remain prohibitively expensive for some regions. The cost of hybrid solar panel is extremely high. It is more cost effective and practical for self reliant societies. It is controlled by geography as sunlight can get only daytime and non cloudy days and clouds, nightfall interrupt the production of solar energy.For example, when winter hovers over New Zealand, it may seem that day after day is cloudy and grey - especially in some parts of New Zealand. On such days it is difficult to imagine that solar energy. Solar panels need more space, it needs more materials to required. Though the system can fix into buildings but sometimes some plants hybrid needs more space. The area of collection is large. In comparison with fossil, fuels sunlight is weak energy. It does not always provide the level of power need to fulfil energy of a business or area.

In conclusion, it has some negative effects the demands of solar energy will continue to increase day by day. The use of solar energy and the importance to industrially is increasing as fossil fuels has become problematic to use. The affordable price of solar panels is a new era of international growth. However, solar panels may be constructed of the national energy grid which is beneficial for small self-reliant societies, they do not require monthly or other charges.