Renewable Energy Sources By Charlotte musk 10G


At this time the main resources of energy include the extraction of gas, oil and coal from the Earth. These are fossil fuels meaning that they are made from decomposed plants and animals from millions of years ago. These resources are finite (there's a limited amount) so humans have to look at different ways to make energy, for example renewable energy's .e.g. Wind or Solar. These release Greenhouse Gases such as CO2 and methane and can also release water vapour into the air. These trap heat as he atmosphere thicken and warms up the earth which can lead to disastrous consequences.

Wind Power

Wind is one of the most popular forms of renewable energy and will exist as long as Solar Energy (another form of renewable energy) exists. This is because wind is created because of uneven heating of the World's surface. It is where hot air rises and cold air flows under it. Wind Power is one of the cleanest ways to generate electricity.

Wind power is created when multiple wind turbines are placed in one energy for the purpose of creating large amounts of electricity. Windmills can also be used which create mechanical energy. Windmills have been used since 2000 BC and were first created in Persia and China, they were primarily used to grind grains.

There has been a 25% increase in Wind Power over the last decade. The wind turbines have three blades, each 60 metres long and the turbines can be as high as 20 story buildings. The blades of the turbine turn the generator of the turbine as they spin, producing the electricity. The largest turbines can generate enough power to power 600 homes. Wind turbines can be built on land and in the sea.

Solar Energy

Solar Energy harnesses the energy of the sun. A downside of Solar Energy is the fact that the panels only work when the sun is up in the daytime. The Solar Energy can be used to heat & light homes and it can be used to produce hot water & electricity.

This is done because the panels contain photo-voltaic (PV) cells and solar thermal collectors which harness the sun's energy. Solar Energy can also be used in another way as the energy is converted by green plants into chemical energy and then the plants become the biomass fossil fuels are made of.

Solar Energy can provide warm water up to 60 degrees approx. and in some areas 60-70% of that is provided by Solar Energy. This type f energy is also transportable and storable.

In conclusion we should switch to alternative (renewable) energy sources or we will eventually have no fossil fuels left to use for other. Only after 10 years of switching to these energy's can it act positively on the Earth's environment. We need to grasp these energy's to not panic if we do run out of fossil fuels in the near future.

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