This website uses cookies to ensure you have the best experience. Learn more

Hydroelectric Power Essay

519 words - 2 pages

Hydroelectric energy has several advantages and disadvantages. Some advantages of hydroelectric power plants compared to regular of fossil fuel power plants are that fuel is not burned in hydro plants, so there is no air pollution; the water used is renewable and free, so it can be replenished with nothing really being used. Those are the good things, but now for the few bad. Hydro plants have to have an existing waterfall or an area of land that can be flooded. They also require a large investment of money and time to build. (USGA)Water turbines are used to spin a shaft which is attached to an alternator. The alternator is the heart of hydroelectric power plants. The alternator is the part that generates the electricity. There are two basic types of turbines, impulse and reaction. Impulse turbines have a high head pressure and a low amount of flow. When the water is transferred into a pipeline, the water then travels into a nozzle which makes it into a smaller stream of water. That small stream of water is then passed over the turbine blades to turn the turbine. Most of these types of turbines are usably used for small scale applications because they do not need much water. (ABS)Reaction turbines have a low head pressure but a high flow rate. This type of system does not use nozzles, but instead blades. These turbines operate at a lower speed than impulse turbines but have a greater efficiency. Reaction turbines are...

Find Another Essay On Hydroelectric Power

Wind-Power: An Alternative to Hydroelectricity Essay

670 words - 3 pages as a primary, opposed to secondary, source – in regards to wind, anything it pushes around to activate would be using a Mechanical power. Wind is easily renewed because it is a source of natural occurrences; if the wind is still blowing you still have your source of energy. Hydroelectric power can also be considered easily renewable, but water is not unlimited. When comparing the cost of wind-power to that of hydroelectric power, wind-power is

hydroelectric energy Essay

757 words - 4 pages power. Hydroelectricity comes from a Greek word for water. Hydroelectric power provides 96% of the renewable energy in the United States. Hydroelectric power plants do not use up resources to create electricity neither do they pollute anything. Although fossil fuels and nuclear power plants produce most of the energy in the United States, hydroelectricity provides 7 percent of total power. Hydroelectric power comes from flowing water runoff from

Hydroelectric Turbine Efficiency

997 words - 4 pages Hydroelectric Power -- what is it? A hydroelectric water turbine is a rotary engine that generates electricity and is powered by moving water. Therefore, this can be often seen as green energy. A hydroelectric water turbine was first engineered during the 19th century and was mainly used to create industrial power before power lines were invented. Surprisingly, technology for hydroelectric power hasn’t changed much in the first 10 years of its

Hydroelectricity is an Efficient Way to Power the World

1446 words - 6 pages worldwide in 2005. Small hydroelectric plants usually encompass plants that generate up to 10 megawatts of power, while large hydroelectric plants can generate thousands of megawatts. (Global Status Report, 2006) Figure 1: Hydroelectricity compared to Other Renewable Energy Sources Since the Greeks used water wheels over two

Brazil's Environmentally Effective Use of Electricity

855 words - 4 pages Brazil is the third largest consumer of electricity in the Western Hemisphere and the ninth largest in the world. In 2011, of the 531 trillion watt hours of electric power generated, hydropower accounted for 424 trillion watt hours, approximately a staggering 80%. Brazil undoubtedly has extremely high reliance on hydropower. However, due to the large size of hydroelectric dams, the construction of dams lowering biodiversity in the Amazon

Renewable Energy

642 words - 3 pages both fairly good sources, Hydroelectric and Geothermal have many downsides. The energy sources that produce the most energy quickest are Coal and Nuclear. Both produce energy much faster than any other energy source. The major downside to these types of sources is the sheer amount of pollution they produce, and the effect they have on the environment. Also, neither source will last indefinitely. Coal will eventually run out, and nuclear power

hydroelectric dams should be built more

1255 words - 6 pages of the amount of carbon dioxide the Greenhouse companies release into the atmosphere. The goal of this tax fee is to convince the companies to release less gas into the atmosphere. Hydroelectric dams produce no fossil fuels meaning they do not create any Greenhouse gasses at all in producing energy. According to IEA, Power generation from coal, in 2010, 42% of global electricity productions was produced through coal, accounting for over 28% of


789 words - 4 pages it produces less power, but if the wind speed doubles, then the windmill will produce eight times more power than in normal conditions. The windmills contain two main two main kind of wind generators, the vertical and horizontal axis. There are three main fossil fuels in the world: coal, natural gas, and oil. These fossil fuels helped create one of the oldest traditional fuel named Hydroelectric Power. According to USGS, in 2006 the US had

Hydro-electric dams are not eco-friendly

1017 words - 5 pages will cause an increase in global warming, droughts and floods and people and animals to relocate, In the end, hydro-electric dams are not an environmentally responsible form of generating energy. Works Cited Baird, Stuart. "HYDRO-ELECTRIC POWER." N.p., n.d. Web. 9 Dec. 2013. . Goldman, Andy. "Hydroelectric Energy (Power) Pros and

Environmental Impacts on Hydro power

1054 words - 4 pages Environmental Impacts on Hydro powerHydroelectric power plants have many environmental impacts, some of which are just beginning to be understood. These impacts, however, must be weighed against the environmental impacts of alternative sources of electricity. Until recently there was an almost universal belief that hydropower was a clean and environmentally safe method of producing electricity. Hydroelectric power plants do not emit any of the

Pros and Cons of Hydro Energy

747 words - 3 pages form of renewable energy as compared to the other energy resources and it is convenient making it the most popular option. •Hydroelectric power is completely independent of fossil fuels and doesn not envolve combustion or any burning of fuel and therefore does not release nay toxic chemicals and does not create any harmful products. •A hydroelectric power installation can be beneficial for fish breeding. •The cost is quite low and it is also an

Similar Essays

Case Study: Sayano Shushenskaya Hydroelectric Power Station

885 words - 4 pages Case Study: Sayano – Shushenskaya Hydroelectric Power Station Introduction: Located on the Yenisei River, nearest to Sayanogorsk in Khakassia, Russia, the Soviet-era Sayano-Shushenskaya Hydroelectric Power Station was opened in 1978. By 2009, the plant was ranked sixth in the world and first in Russia for gross hydroelectric power generation. A total of ten turbines were utilized to provide 6,400 MW of electricity to the Russian

The Shushenskaya Hydroelectric Power Station In Russia

2154 words - 9 pages Introduction: Sayano – Shushenskaya Hydroelectric power station is located on the Yenisei River, near Saynogorsk in Khakassia. It was the largest hydroelectric power station in Russia and the sixth- largest hydroelectric power station in the world before. Construction started in 1968 taking 10 years for it to be built and opening in 1978. The plant was designed by the Leningrad. After the fall of the Soviet Union the Station was privatized with

Hydroelectric Power Technology And Its Effects On The Environment

1229 words - 5 pages For centuries, scientists and energy experts from all over the world have been making efforts to look for alternative resources in order to solve human being’s energy crisis. Consequently, a great number of renewable energy source have been discovered, including solar power, nuclear power, wind-generated power and hydroelectric power. This essay aims at giving some basic knowledge on hydroelectric power technology with focuses on its impacts on

Hydroelectric Energy Alternative To Fossil Fuels

824 words - 4 pages supplies running low, we need to find an alternative resources to replace fossil fuels for electricities and for the fuel for our transportations. Hydroelectric energy is the perfect choice of replacement.   Hydroelectric energy is an alternative energy source that can be use to power houses. Hydroelectric energy came from a water dam or a hydroelectric power plant in which water is channeled through tunnels in the dam and the power of the water