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reflection about non renewable and renewable energy
fossil fuels and alternate source of energy
reflection about non renewable and renewable energy
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The supply of fossil fuels is drastically depleting, and the consumption of energy causes multiple problems which include: global warming, pollution and geopolitical conflicts according to Dan Hogan, editor of sciencedaily.com. One respective alternative would be wind-power. Wind-power can be used as both electrical power and mechanical power. Electrical power refers to fuel that has been converted to electricity. Mechanical power is fuel used as a primary, opposed to secondary, source – in regards to wind, anything it pushes around to activate would be using a Mechanical power. Wind is easily renewed because it is a source of natural occurrences; if the wind is still blowing you still have your source of energy. Hydroelectric power can also be considered easily renewable, but water is not unlimited. When comparing the cost of wind-power to that of hydroelectric power, wind-power is more affordable. Wind-power comes in at only $0.01/KWh, while Hydroelectric power is $0.03/KWh. Also, wind-power generates relatively no greenhouse gases, and is expected to leave no by-products while Hy...
2. Personally i am for wind farms and in my opinion. I think that wind energy has a great potential not only is wind energy very reliable and sustainable. it is also not as expensive as some at the other types of renewable green energy sources.
Energy is undoubtedly one of the most important issues facing the world today. While fossil fuels may produce enough energy at a low cost, it also has severe environmental impacts on the world. Wind energy is a clean source, but is also extremely expensive to maintain. Nuclear energy may be the best energy alternative to coals and oil, with the ability to produce much more energy with relatively low cost, while also being more environmentally sound.
Wind energy can play a critical role in saving our planet from the negative effects of energy powered by fossil fuels. Wind turbines work effectively at reducing carbon dioxide emissions. For instance, a single utility scale wind turbine can prevent the emission of 5,000 tons of CO2 into the atmosphere a year by displacing the power generated by fossil fuels. Also, a single 750-kilowatt turbine can produce roughly 2 million kilowatt hours of electricity annually. Turbines of this nature are the ones now being used in power plants around the world (Wind Energy Weekly). One good example is California. Their wind power plants displace 4.5 billion pounds of CO2 each year with the 3 billion kilowatt hours of energy they produce. To put it into an environmental perspective, that is as much CO2 as could be absorbed by a forest covering 1100 square miles (Wind Energy Weekly). Although wind energy has little to no impact on the environment when it comes to air pollution or greenhouse gases, there are other environmental concerns surrounding this form of energy production. Some of the concerns about wind energy include visual impacts, birds and other living resources, lightning and noise (Wind Energy Development).
Wind Energy is a viable industry that has become a valuable energy source. The energy generated from wind is clean and efficient. The wind energy industry helps to ensure that electric demands are met, wildlife impact is minimal, the environment is not devastated, as well as creates new jobs during the construction of wind farms, daily operations, manufacturing components, and exporting components to foreign countries.
...dition, fossil fuels not only unleash carbon dioxide into the atmosphere, but also is harmful to human when exposed for a long period of time, new energy resources would be needed to replace it such as, wind turbans, biomass energy, wind energy, solar energy, geothermal energy, and hydroelectric energy (Alternative Energy).
Just as long as wind continues to blow and the sun shines, then wind power can produce energy to send to many different areas. There aren’t many locations that have continuous wind. And because of that, the widespread development of wind power isn’t as great as it could be. Although there are more advantages than disadvantages when it comes to this energy source, the disadvantages should be taken just as seriously. Wind power can harm animals, there was a study that stated birds were coming in contact with turbines and dying.
Wind energy or wind power is the extraction of kinetic energy from wind and the conversion of it into mechanical energy. Man has harnessed the power of the wind for many centuries. Wind is a type of solar energy. The sun heats the earth’s surface and the warmer air begins to rise. Cooler air flows into the area below the rising air causing wind. The Egyptians utilized the wind as early as 5000 B.C. by attaching sails to propel boats across the Nile River. For many years sailing ships on the open seas were powered by capturing the wind with sails. The Dutch adapted the windmill and used it to drain the lakes and the marshes of the Rhine River. Windmills are used in food production such as grinding grain. Since the early 1800s, windmills in the United States have been pumping water from the ground. The windmill was instrumental in the development of dry land farming in the Midwest after the Civil War. Hundreds of windmills are still pumping today to provide water for grazing cattle.
Winds are caused by the irregular heating of the atmosphere by the sun, the variations of the earth's surface, and rotation of the earth. This wind flow, or kinetic energy, when "harvested" by modern wind turbines, can be used to generate electricity. There is an abundance of wind to meet our needs, “the potential of [the total] wind power [in the world] is. 20 times more than what the entire human population needs” (Maehlum). Currently, wind power is one of the lowest-priced renewable energy technologies available, costing between four and six cents per kilowatt-hour, depending upon the wind resource.
The three fossil fuels- coal, crude oil, and gas slowly formed over millions of years. These days, we use fossil fuels to power everything- homes, buildings, cars, computers, lights, etc. However, fossil fuels deposits will run out soon, which is a huge problem. Extracting, transporting, and burning fossil fuels are dangerous. There are also many negative biological and environmental impacts that result from the use of fossil fuels, such as ocean acidification, groundwater contamination, land subsidence, oil spills, and global warming. Therefore, we should be trying to reduce our dependence on fossil fuels and explore alternative energy sources such as wind energy, hydroelectricity, and solar energy instead. Our world depends on fossil fuels, but they can also hurt us. Fossil fuels are both a blessing and a curse.
Wind turbines are a great source of energy all around the world. Wind Turbines produce wind energy that can be used to power our homes. Wind turbines convert Kinetic energy into mechanical power. Then this mechanical power gets generated into electricity. Wind turbines make energy by the wind turning the large blades, which spin a shaft that is connected to the large blades, which then operates the generator making electricity. One new idea is building wind turbines offshore in the mid-Atlantic. Offshore building of wind turbines means that these large turbines will be placed in the Atlantic Ocean. The building of these wind turbines will provide energy to states like Maryland, Delaware, New York, Virginia, and New Jersey. These states want to start this project as soon as possible so that the states can start saving money. Since these regions right now are burning fossil fuels uncontrollably with incredible impacts (not only to our air, but to our health) it is crucial to start right away. Offshore wind turbines will provide more jobs, cut pollution, stop warming of our planet, and save us energy costs. These wind turbines can make enough energy offshore to power about 500,000 thousand homes. However, many people disagree with this idea because they believe it is too expensive.
Wind power is one of the most sustainable ways of generating electricity as no toxic emissions are produced; it does not add to global warming and is one of the most available sources of renewable energy and theoretically it is an infinite source of energy. On sufficiently windy areas, wind turbines are one of the most economical methods of generating electricity, which makes it appealing to many individuals, governments and organizations. Due to this it is the fastest growing source of electricity in the world (Union of Concerned Scientists, 2014) with a 10% increase in yearly additions installed in 2012 compared with 2011 (Global Wind Energy Council, 2012). However the proportion of energy that can be harnessed through wind power is restricted by the cost of the infrastructure needed, construction, the amount of wind that occurs and that there are only a narrow number of sites within the UK that are windy enough for the wind turbines to be worth installing.
Although renewable energy can be expensive to build, it has less environmental damages in comparison to non-renewable energy. Besides the natural resources such as sun, wind, water and hydrogen, we also have geothermal power, and biofuels as renewable sources. First of all, solar energy is the energy produced when the sun heats the solar panel. Thus, when the sun heat the panels, it produces electricity. Solar power produces energy during the day and can storage energy for the night. Solar power does not pollute so much the environment. However, it has high maintenance cost, and it takes a large land space. Secondly, 15% of World electricity comes from wind. In order to have wind energy, it is important to have turbines to get the wind in order to produce electricity. Tall turbines produce more energy. The drawbacks of wind power are that it requires steady wind and its installations may interfere with TVs, cellphones, and other electrical devices. However, it is quickly built and there is no pollution nor noise produced. Third of all, the water falls in the dam can also generate electricity. For instance, 19% of world electricity comes from water. Regardless of the fact that hydroelectric power has low maintenance costs and does not pollute the environment, it can cause earthquakes, and destroy wild rivers. Only 0.3% of world energy
In chapter thirteen of our book, Environment by Raven and Berg, it shows us just how important renewable energy sources are. Currently the United States of America thrives on the use of fossil fuels and nuclear power. The main problems with these types of fuel are that they are both limited and can be extremely harmful to our environment. They cause global warming, air pollution, acid rain, and oil spills (Environment), and not only that, but in the grand scheme of things, these sources really aren’t even that cheap of a fuel source. There are many alternatives to these all but outdated fuel sources.
Wind is a form of solar energy. The term wind energy describes the process by which the wind is used to generate electricity or mechanical power. Wind turbines convert mechanical energy from the wind into electrical power. Wind turbines usually have three main parts. There are blades that connect to a central hub, a box behind the blades that contains the generator, and a long stem that connects to the ground. The way how it works is that the wind turns the blades, which spins a shaft that connects to a generator making electricity. After the electricity is produced it is sent through transmission lines to a substation that is sent to business and homes. For the sake of our planet, we must promote a renewable energy economy. Wind power can be a foundation of that sustainable energy future because it provides jobs in states that are building wind turbines, is a renewable energy source, and does not damage our environment. The environment will not be damaged by the pollution, the natural resources will not be used up, and there won’t be generating of hazardous wastes. Welcoming wind energy today will lay the foundation for a healthy tomorrow that will affect everyone in the United States. There are obstacles and challenges that will make it more difficult, but the environmental impact is well worth it to invest more money into wind energy.
Fuels like coal, and oil that once were a fine innovation in creating energy are now rapidly deleting and one day will be gone forever; energy that won’t last is often referred to as non-renewable energy. Besides being set up to fail and become inefficient in the future, fossil fuel energy is not clean to use and poses several environmental complications. Coal, for instance is “the dirtiest of all fossil fuels. Coal combustion not only produces sulfur oxides and nitrogen oxides that contribute to acid rain and snow, it generates millions of tons of particulates that cause asthma and other respiratory diseases.” As with all usage of fossil fuels, it creates enormous amounts of carbon dioxide, which contributes to greenhouse gas. Not only are fossil fuels dirty, they also pose as a security risk and unforgiving on the American wallet. (Saini)