The two major problems from burning fossil fuels are global warming and decreasing oil supplies. However, Joel notes that there is a difference between this pending pandemic and the pandemics previously mentioned. This pandemic can be prevented. Solar energy is a nondepletable resource that can help us avoid furthering global warming and decrease our continued dependence on oil. Solar energy is, in the most rudimentary terms, energy from the sun.
Water energy is a product that’s uses the energy created by the moving water or tidal power to power mechanical devices or creates electricity. Burning "biomass," including crop waste from farms, crops grown and even animal and human waste, can also generate energy for every day uses. Solar power is one of the best renewable resources known to man today. The idea of trapping the suns rays to convert it into energy and produces electricity, heat, or cooling devices. Solar power has a variety of advantages it is so effective, abundant and infinitely renewable it makes it one of the leading renewable sources used today.
Geothermal energy is a renewable energy resource which can heat and cool buildings. Although there are some by-products, using a particular type of system can help stop their emission. In conclusion, the use of geothermal energy can be used at a grand scale in the United States. Introduction In today's society, the need for an alternative source of energy has become an increasingly important issue. As the world's natural resources, such as water and oil, raise concern over energy security (MIT, January 22, 2007, para.
The topic of implementing solar energy as the country's primary energy contributor has been one of much controversy; however, making this transition could promise a world of incredibly cheap power for an eternity. The following information will detail major discussion points in solar power that have significant impact on not just the industry but the way that ordinary Americans live their lives. The material has been organized into the following headings: current and projected capabilities, environmental impacts, cost, and solar roadways. Current and Projected Capabilities The total world energy demand is roughly 400 quadrillion British Thermal Units (BTU). One BTU is measured by the energy and heat generated by a match.
Figure 1: (Pacific Gas and Electric Company, 2007) The solar energy is created by the harboring of the Sunrays using Photovoltaic... ... middle of paper ... ...eb site: http://www.solarenergy.com/info_history.html (2005). Solar Energy. Retrieved July 31, 2007, from BBC-GCSE Bitesize- Physics Web site: http://www.bbc.co.uk/schools/gcsebitesize/physics/energy/energy_resourcesrev7.shtml (2006). Discover Solar Energy. Retrieved July 24, 2007, from Solar Energy Advantages and Disadvantages Web site: http://www.facts-about-solar-energy.com/solar-energy-advantages-disadvantages.html (January 4,2007).
One of the issues that has a significant influence on sustainable economic and social development is energy. The utilization of energy results in climate change owing to its impact on environment by greenhouse gas emissions. This is resulted from the convention of using oil, gas, and coal that emit CO2, NOx and other poisoning substances into the air. The national strategy of China is to reduce this pollution by replacing fossil fuels with alternative energy such as wind, nuclear, geothermal, hydropower or solar energy. (Zhen 2008).
Global warming is a significant problem which results in increasing concentrations of greenhouse gas in the atmosphere. These problems drive researchers and societies to search alternative energy such as switching to renewable energy or carbon-free energy to replace fossil fuels. For example Nakata et al., (2011:465) show ‘low-carbon society’ that is designed to use less fossil fuel. According to Verbruggen et al., (2010:852) define renewable energy ‘is obtained from the continuing or repetitive currents of energy occurring in the natural environment’ such as wind and biomass. Many countries accept carbon-free energy as alternative energy, and are trying to develop and apply new technologies that will enable them to use renewable energy sources in the most efficient way.
The energy that strikes the earth in one hour is more than the energy that is consumed in the planet in a year (Lewis & Nocera, 2006). With the aid of Photovoltaic cells (PV) solar energy is converted to useful energy for our consumption. Photovoltaic is a high technology in which solar cells convert sunlight directly into electric current; through an electron principle discovered by Alexandre-Edmond Becquerel. (Williams, 1960) When photon produced by sunlight collide with an electrode usually semicondoctor materials they produce electricity (Pimentel, 2008). The electricity produced is enough to power a house depending on the size of the cel... ... middle of paper ... ...tage.