User:Lucyannaf/sandbox

Renewable Energy Definition (New)
There are many different types of renewable energy sources in the world including solar energy, wave power, and wind power. For a type of energy to be called renewable, it must be a type of energy that can be harnessed without the use of fossil fuels. Fossil fuels are a type of fuel that is created naturally by the earth. To obtain energy from fossil fuels, however, you need to burn or harvest their energy which can be harmful to the environment. Renewable energy focuses on different sources of power that mankind can use without harming the environment such as clean energy sources. To be considered 'clean energy' the source must produce no greenhouse gasses, or other types of pollution can be released into the air when obtaining this power. For a source of energy to be called renewable, it also needs to have an endless supply of that source. Fossil fuels, therefore, cannot be considered a renewable energy source because there is a limited amount of it on earth. Wind energy can be considered a renewable energy source because its supply will theoretically never run out.

Wind Energy Definition (New)
The use of wind turbines and its technology has been around for thousands of years. The use of wind mills was invented over 2,000 years ago by the Persians. Wind mills were the first machinery to use the wind to move blades and produce power. These windmills were used to grind up food to make different products such as grain and corn. The use of windmills, however, did not appear in the United States until the 19th century and were used for pumping water into homes. It was the 1970's when The United States started to create, and harvest electricity generated using these turbines. Around 32 Volts could be generated and used to create grid electricity. The use of grid electricity was the start to having readily available electricity in homes across America and is what powered appliances in the kitchen such as microwaves and refrigerator. Today, wind turbines can be found all over the globe and are responsible for almost four percent of the United States' energy. Other countries such as China, Norway, and Germany have all transitioned to renewable energy sources. So successfully, that in 2017,about 95% of Germany's power came from renewable energy sources. Wind energy is still being improved everyday, finding new ways to harness power more effectively and efficiently.

Wind Turbines (New)
Wind turbines work on a simplistic engineering design. Three propellers are connected to a shaft which connects to a gear box then spins a generator inside of the housing in the turbine. The spinning and rotating of the shaft generates power which can then be turned into electricity and transported through power cables, to a transformer, and then to power lines to cities. By harnessing power from wind, the location of the wind turbines is important. The environment plays a role in deciding the location of turbines. Wind must be in abundance, with a steady and constant flow. Placing a wind turbine in a location where wind is irregular can be inefficient. The flow of wind can depend on the surface or terrain of the earth in a location, if there is a body of water nearby, and the climate. If there is a body of water or lack of mountainous terrain, wind can often be abundant and consistent.The energy collected by the wind turbines is initially a form of kinetic energy. Wind turbines convert this energy to working electricity, by converting it from kinetic energy to mechanical power.

Benefits of Wind Energy (New)
There are many benefits of Wind Energy environmentally, and economically. Not only wind energy is a renewable energy source, which means it produces no pollution, it is also sustainable. Compared to solar energy, wind energy does not require the sun to shine to produce energy. If there is wind, this energy source can produce power. Wind turbines can also be put up nearly everywhere. They are often put in locations such as rural farm areas out of sight from most habituated places. Wind turbines also reduce the cost of transporting power from far away fossil fuel refineries. Since wind turbines can be placed almost everywhere that wind is in abundance, it allows them to be placed near cities which lowers the cost of power. Shortening the distance between power grid will allow the cost of power to lower, helping the average person save money on heating and power bills.This would also help save cities and use more sustainable energy sources while also lowering the cost of power. Wind energy also helps conserve water. Refineries and power plants that create energy require a large amount of water. Wind energy and wind farms, however, require no water and therefore helps conserve water.