Презентация, доклад по английскому языку на тему : Green Power

the environment. Green power production technologies are those that that clearly reduce the harmful environmental impacts of energy generation. They generally make use of renewable sources like wind, water, sun and biomass.

wind energy for over 2000 years. In many places, wind energy was harnessed by windmills for pumping water and grinding grain. Windmills work by slowing down the speed of the wind. The wind flows over the blades causing them to turn. For producing large amounts of electricity, many machines can be installed together to form a wind farm.

pollution
It does not involve dangerous and harmful chemicals
It has a great potential
It will never run out, no way we can lose it (as long as the sun still shines)
It is not very expensive, wind energy is now cheaper than gas and nuclear energy. 

very loud.
The strength of the wind is not constant and it varies from zero to storm force. This means that wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all.

the solution for our energy demands. It has great potential and is easy to manage. All you have to do is build the turbine and everything else is going to be free. With only one turbine you can power over 200 homes. Every wind turbine lasts for about 20 -25 years, As long as the wind blows, wind turbines can harness the wind to create power. Unlike coal wind turbines don’t create greenhouse gases and are completely renewable source. Many people believe that that the wind energy could soon be our main source of energy.

at home
Wind Energy
Online Resources on Wind Energy: how it works, advantages, disadvantages, history
Build your own wind turbine
Wind Turbine Specifications
Social Network for the Wind Energy Community