Hydroelectric power works from a generator inside a dam connected to a turbine, the water then flows through the dam and pushes the turbine and the generator produces energy (USGS, 2014). Hydroelectric energy uses the natural flow of water to generate power, the water that is used is put into a reservoir (USGS, 2014). The water is also pumped back into the lake to be used again. Hydroelectric power is very efficient and dams would be built around the world to take advantage of rivers that have flowing water. The dams may be expensive to build, but in the long run, they are extremely efficient and generate a lot of energy. Even though hydroelectric energy contributes to about 19% of the world’s total electric production, according to the United States Geological Survey, there is an abundance of untapped potential energy we are not using in places like, Latin America, Central Africa, India, and China (2014). If we still have tons of potential energy to be used and taken advantage hydroelectric energy will be extremely important in the switch to renewable …show more content…
The coal fired power plants alone produce approximately 25% of the total United States global warming emissions (Union of Concerned Scientists, 2014). The natural gas fired power plants produce 6% of total global warming emissions, while most of the renewable sources of energy produce very little global warming emissions if any (Union of Concerned Scientists, 2014). The fossil fuels that we are using are nonrenewable and cannot be reproduced and the less we use the better. The alternative energy sources are all sources of energy that are extremely efficient and they run on renewable energy sources. The sun’s ultraviolet rays and the wind currents will not stop nor will the flow of the water, especially when the water being used is pumped back and reused. The fossil fuel production used a lot of water for cooling, as well as for producing the