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UOI Project

Angela Sutikno

on 24 November 2012

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RENEWABLE ENERGY AND NON-RENEWABLE ENERGY What Is Renewable Energy? Renewable is an energy which comes from natural resources such as sunlight, wind, rain, tides, waves and geothermal heat. By: Angela R. Sutikno Grade 6C Where Are The Best Renewable Energy Sources Found? The best renewable energy found are in every state in America. Because it can produce its own energy from clean, renewable sources, keeping millions of energy dollars in state, reducing pollution, and creating new jobs and new sources of income. Sources Of Renewable Energy Wind energy
Solar Energy
Biomass energy
Hydropower energy
Geothermal energy Renewable Energy Transformations 1. A wind turbine is a machine made up of three blades called the rotor. The rotor is attached to the top of a tall tower. As the wind blows it spins the rotor. As the rotor spins the energy of the movement of the propellers gives power to a generator. there are some magnets and a lot of copper wire inside the generator that make electricity. Renewable Energy Transformations 2. Geothermal energy plants use the natural heat (thermal energy) of the Earth. Water turned into steam turbines. This is a conversion of the thermal energy into mechanical energy. The mechanical energy of the turbine is coupled to a generator, and is converted there into electricity (electromagnetic energy). Positive Benefits/Concerns When Using Renewable Energy 1. Positive=
The sun, wind, geothermal, ocean energy are available in the abundant quantity and free to use.
The non-renewable source of energy that we are using are limited and are bound to expire one day.
Renewable sources have low carbon discharges, therefore they are considered as green and environment friendly.
Renewable helps in stimulating the economy and creating jobs opportunities. The money that is used to build these plants can provide jobs to lots of people.
You don't have to rely on any third country for the supply of renewable sources as in case of non- renewable sources.
Renewable sources can cost less than consuming the local electrical supply. in the long run, the prices of electricity are expected to soar since they are based on the prices of crude oil, so renewable sources can cut your electricity bills.
Various tax motivation in the form of tax waivers, credit subtractions are available for individuals and businesses who want to go green. Negative Benefits/Concerns When Using Renewable Energy 2. Negative=
It is not easy to set up a plant as the initial costs are quite steep.
Solar energy can be used during the day time and not during night or rainy season.
Geothermal energy which can be used to generate electricity has side effects too. It can bring toxic chemicals beneath the Earth surface onto the top and can create environmental change.
Hydroelectric provide pure form of energy but building barrier across the river which is quite expensive can affect natural flow and affect wildlife.
To use wind energy, you have to rely on strong winds therefore you have to choose suitable site to operate them. Also, they can affect bird population as they are quite high What Is Non-Renewable Energy? Non-renewable energy is energy which is taken from sources that are avail on Earth in limited quantity and will vanish in 50-60 years. Non-renewable sources are not environmental friendly and can have serious affect. Sources of Non-Renewable Energy Natural gas
Oil (petroleum)
Uranium (nuclear energy) Non-Renewable Energy Transformations 1. First the coal is mined and taken to a power plant. Then the coal is burned in a boiler which causes the water in the boiler pipes to become steam. The steam travels through the pipes to the turbine. The steam spins the turbine's blades. The spinning blades turn a shaft connected to the generator. In the generator, big magnets spin to coils of the wire. When this happens, electrical current is produced in the wires. Then the electricity goes out through the wires to houses, schools and other buildings. This happens because the energy in the coal came from the sun and was stored in the plants. When the coal is burned, it gives up that energy as heat. The coal's heat energy can then be turned into electrical energy. Non-Renewable Energy Transformations 2. The nuclear splitting of fusion releases energy that is extremely hot. It is circulated around cooling tubes containing water. The heat vaporize the water, resulting in the steam rising, and passing down a tube where it turns a turbine producing electricity. Positive Benefits/Concerns When Using Non-Renewable Energy 1. Positive=
Non-renewable sources are cheap and easy to use. You can easily fill up your car tank and power your motor vehicle.
You can use small amount of nuclear energy to produce large amount of power.
Non-renewable energy have little or no competition at all. For example, if you are driving a battery driven car your battery gets discharged then you won't be able to charge it in the middle if the road rather it is easy to find a gas pumping station.
They are considered as cheap when converting from one type of energy to another. Negative Benefits/Concerns When Using Non-Renewable Energy 2. Negative=
Non-renewable sources will expire some day and we have to use our endangered resources to create more non-renewable sources of energy.
The speed at which such resources are being utilized can have serious environmental changes.
Non-renewable sources release toxic gases in the air when burnt which are the major cause for global warming.
Since these sources are going to expire soon, prices of these sources are soaring day by day. Percentage Of Renewable Energy And Non-Renewable Energy Renewable Energy And Non-Renewable Energy
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