Sind da Fehler in meinem Englisch Referat, Wenn ja welche?
Renewable energy Good morning ladies and gentleman, Today I’d like to talk to you about a very important and currant topic: renewable energies. But what are renewable energies? Renewable energies or regenerative energies are energy sources which are inexhaustibly available to use or energy sources which can be renewed very fast.
Fossil fuels in contrast need millions of years to be renewed. Renewable energy is the most important factor of the sustainable energy policy and the energy revolution. Examples are: bioenergy, geothermics, hydropower, ocean energy and wind energy But how do they work? The energy source the sun for example is giving us light for millions of years. With her we can easily heat water. Solar thermal installations are therefore standard facilities at new houses. The solar panels produce heat which we can use for showering, heating, and other things in our household. To produce current there are two ways: solar cells convert light directly into current. This process is also called recombination. In warmer countries there are often solar thermal power plants. With big mirrors the sunlight gets bunched, converted into heat and stream turbines can be boosted. Then the direct current can be transported. The advantages of renewable energies are that they are like I said sustainable and they never run out, secondarily they require less maintenance than traditional generators. Their fuel being derived from natural and available resources reduces the costs of operation.
Even more importantly, renewable energy produces little or no waste products such as carbon dioxide or other chemical pollutants, so has minimal impact on the environment. Renewable energy projects can also bring economic benefits to many regional areas, as most projects are located away from large urban centres and suburbs of the capital cities. These economic benefits may be from the increased use of local services as well as tourism.
It is easy to recognize the environmental advantages of utilizing the alternative and renewable forms of energy but we must also be aware of the disadvantages.
One disadvantage with renewable energy is that it is difficult to generate the quantities of electricity that are as large as those produced by traditional fossil fuel generators. This may mean that we need to reduce the amount of energy we use or simply build more energy facilities. It also indicates that the best solution to our energy problems may be to have a balance of many different power sources. Another disadvantage of renewable energy sources is the reliability of supply. Renewable energy often relies on the weather for its source of power.
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