INTRODUCTION
Renewable energy is energy produced from natural resources such as, wind, sunlight, rain, tides and geothermal heat which can be re-used or replenished. Natural energies (renewable energies) have its advantages and disadvantages. The reliance on fossil fuel is reduced by the sources of renewable energy. Though the use of natural sources has many advantages over the use of fossil fuels, the cost of investment for it can be too high for some people.
In this project, I will be highlighting mainly on the sources of natural energy and its advantages and disadvantages.
EXAMPLES OF NATURAL ENERGY SOURCES
WIND
It is said that anything that has movement has kinetic energy, in which case wind is definitely going to be considered as a type of energy. Wind is an indirect form of solar energy. Out of the incalculable amount of solar energy reaching the earth, about one to three percent of it is converted into wind energy. The temperature difference that arises when the sun heats different portions of air at different rates results in wind. The rising of warmer air and the sinking of colder air respectively leads to wind.
The sun’s energy in collaboration with the earth’s surfaces creates the winds and as long as the sun is up there, wind is a renewable energy source.
ADVANTAGES OF WIND ENERGY
To produce wind energy we don’t need to burn fossil fuels which means that there won’t be any harassment to the environment. So, wind energy is friendly to the enviroment. Wind eneygy which is a permanent type of energy, does not generate pollution. It reduces the emission of gases into the environment. No matter how much we use wind energy, there will be still more tommorrow, as wind is a renewable and sustainable resource. Wind tu...
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...me to know the vacant sources of natural energy sources of the earth and their advantages and disadvantages. What I realized was that if we weigh the advantages and disadvantages of these sources, the side bearing the advantages would be so much higher than disadvantages. However, what I have not realized is why people are not choosing these natural, renewable sources over the harm causing fossil fuels.
We all have got to know how useful these sources are, take some actions, and try using it. Definitely, that would help us reduce so much environmental problems we are facing now!
Works Cited
http://www.eoearth.org/
http://www.alternate-energy-sources.com/what-is-solar-energy.html
http://en.wikipedia.org/wiki/Renewable_energy
http://www.clean-energy-ideas.com/
http://www.childrensuniversity.manchester.ac.uk/interactives/science/energy/discovermore/advantages.pdf
Its most known process of generating electricity would be movement of air through wind turbines. Wind power has two parts, mechanical and electrical systems. Mechanical systems are low speed and are used for mechanical tasks such as pumping water or grinding grain. Electrical systems are high speed and are used to generate electricity to power homes or schools. Many people feel that wind farms full of turbines, are aesthetically unpleasing, but wind power is a clean energy source and does not generate greenhouse gas emissions. It is a very abundant resource throughout the United States. Wind power is simple, relatively cheap, and low maintenance (Sambu). Wind power is again, free and very abundant so no matter how much we use now, we will still obtain enough in the
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.
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.
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 United States currently relies heavily on coal, oil, and natural gas for its energy. While the price of natural gas per barrel continues to plummet, the United States is constantly seeking new sources of renewable energy. Renewable energy consists of any type of natural resource (solar power, ocean power, wind power, rain, snow, etc.). that naturally and automatically replenishes itself. Renewable energy is important because it is infinite and everlasting, meaning our children and our children’s children will be able to utilize these resources long after we are gone.
Fossil fuels are an important part of life. When you turn on the lights, watch TV, or take a shower, the electricity that you are using is being generated by fossil fuels. The three types of fossil fuels are coal, crude oil, and natural gas. They all take millions of years to form, so they are considered to be “non-renewable”- eventually, the fossil fuels will all be used up. One dangerous biological effect of using fossil fuels is ocean acidification. Extracting and transporting fossil fuels can also be very dangerous. Environmentally damaging accidents such as groundwater contamination, land subsidence, and oil spills occur frequently. Global warming is another possible environmental effect. Fossil fuels have a crucial role in modern society, but since they are non-renewable and dangerous, we should reduce our dependence on them and explore alternative energy sources. Wind energy, hydroelectricity, and solar energy are some examples of renewable fuel sources. There are also many things that people can do everyday to save energy (and, in turn, conserve fossil fuels).
Wind turbines are a great source of energy 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.
The Wind Turbine is a device that converts the kinetic energy of the wind into kinetic energy of turbines. The turbines turn to generate electricity but they work only when there is wind. The efficiency is 30-40%. The environmental impacts are needs many large turbines to generate electricity which can be noisy and unsightly. Turbines may endanger birds and bats.
There are different kinds of resources that we can use in order to produce renewable energy. Solar power, wind power, hydroelectric power are just some of the kinds of renewable energy that might be the best options to obtain energy because they come from natural resources. Although renewable energy can be expensive to build, it has less environmental damage 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.
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.
For years man has relied on energy in order to be successful in life. The industrial revolution relied on coal for the new inventions brought into the world. Life as has never been the same since then. However since that time, there has been little done to improve on energy efficiency and humans still primarily rely on fossil fuels for energy. For over a hundred years the Earth has become more polluted and dirtier than ever before. Now, with new, innovative technology there is an opportunity to change that and to rely on renewable, cleaner sources of energy. The main source of energy for the world should be alternative energy instead of energy from fossil fuels.
There are two types of resources using to produce electricity, non-renewable energy resources and renewable energy resources. Non-renewable energy resources or known by fossil fuel such as wood, oil, gas and coal can be defined as solid, liquid or gaseous fuels formed in the ground after millions of years by chemical and physical changes in plants and animal residues under high temperature and pressure.
Understanding the environment would help you recognise the appropriate energy production system to use. Renewable energy is an alternative natural source to fossil fuels like sunlight, wind and geothermal heat. Wind turbines and photovoltaic panels are examples of energy production systems where the conditions of a particular environment has to be taken into account. If a building is located alongside or near
As discussed above, it is apparent that people need to know that non-renewable resources are not readily available, and they usually take extended periods before to replenish. Due to this effect, it is crucial to consider using the natural ones as they are always available in the environment. Unlike non-renewable resources, renewable ones cannot be exhausted even if there is a high increase in demand because they are natural sources of energy. Aside from that, making the topic as top priority will create awareness of the effects associated with the use of non-renewable resources thereby turning people to adopt other alternatives that do not cause harm to the environment as well as their wellbeing. Furthermore, this will reduce the rate at which individuals neglect the use of renewable sources of