Renewable energy Essay Example | Topics and Well Written Essays - 500 words - 1

Renewable energy - Essay Example energy is energy generated from resources that are naturally refilled on a human timescale such as rain, geothermal heat, waves, sun, and wind (Harvey and Brown 41). The cost of generating hydropower is low making it the most preferable source of the world’s renewable energy. Further, hydroelectric plants are said to have long economic lives with some plants having the ability to be in service for over 50 years. The cost of operation is not high since plants are automated and have few people on site during normal operations. In addition, hydro energy is more flexible source of power or electricity because plants can be ramped or inclined up and down to adapt to transforming energy needs. Once a hydropower dam is constructed, the project generates no direct waste to the ecosystem and has low production of greenhouse gases than fossil fuels (Somma 46). It is vital to note that many nations recommend energy sources such as hydropower, wind and sun because they do not emit any harmful chemicals and gases such as carbon dioxide and it is not a major contributor to global warming via carbon dioxide. Energy source such as hydropower is a renewable source of energy or power because rivers and streams are naturally available. Further, hydropower is not expensive as compared to energy produced from nuclear energy or fossil fuels. The advantage of hydroelectric reservoirs is that they are able to tackle daily, seasonal, and peak loads. For instance, when the demand of electric falls, the reservoirs or dams store water while some installed electricity generators are used to store excess energy (Harvey and Brown 33). Biofuel production revolves around the fact that biofuel is a renewable source of energy. Biofuels have a source material and unlike oil, which often takes thousands of years for the fossil fuels to be produced, the biofuels are renewable because new crops can often be grown and the waste material collected for production of oil. Biofuel production has helped