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Hydropower

Transcript: Hydropower If at a given moment it falls to a lower level, this energy is transformed into kinetic energy and after wards into electrical energy in the hydroelectric plant. •Hydropower is used primarily to generate electricity. Kinetic energy Thanks for watching What is Hydraulic energy? electricity produced by dam systems do not produce green house gases Disadvantages: "Save power and carry on." •Since ancient times, hydropower has been used for irrigation and the operation of many mechanical devices, such as watermills, sawmills, textile mills, dock cranes, domestic lifts and paint making. Electrical energy Water mill Hydroelectric Dam •Hydraulic energy is what is produced by the water which is stored in reservoirs and lakes at a high altitude (so that it has gravitational potential energy). How is the energy change? How does it work? The construction of hydroelectric plants is expensive . Flooding causes loss of fauna and productive soil . They alter the quality of water. Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water •it is a clean energy source, (no waste products) • easy to store. •Reservoirs which store water regulate the flow of the river. http://recursostic.educacion.es/newton/web/materiales_didacticos/e_hidraulica/e_hidraulica.html And Listening ! •Hydropower or water power is power derived from the energy of falling water Activity: •Gravitational potential energy Advantages: 0 + - = 9 8 7 1 2 3 4 5 6 c

hydropower

Transcript: hydropower By, Natalie Wilkins, Lily Smith, and Danielle Matzelle (: FUTURE More than 500 dams are affecting 130 diffrent rivers are set up for relicensing in next decade. More than 2,300 hydroelectric dams currently harness U.S. rivers to provide nearly 11%of the country'stotal energy supply. Producing power from river might seem strange because there are no billowing smokestacks.But hydropower can increase water temperatures, change levels and eliminate nauralriver flow. vermont and maine are already feeling the impacts of having thier water managed by absentee owners. Changes in both states are leading to rapidchanges in flows and eroding banks, and there is more to come. This dam (the three gorge dam in china) flooded archaeological and cultural sites, displaced 1.4 million people, and is causing significant ecological changes, including an increased risk of landslides. The building of the dam has been a controversial topic, both in China and abroad. WHERE AND HOW WE GET IT We get hydropower from the water rushing down dams. Hydropower is usually used in irrigation of land for farming. It can be used to power machinery like saw and water mills. China is the largest producer of hydropower followed by Canada, Brazil and the U.S.A.. Since no fuel is burned in the processes of hydropower there is no pollution or greenhouse gases going into the air. HOW WE USE IT AND WHO USES IT Hydropower is used to make electricity which mainly used to operate machines. Roughly 270,000 mega watts of hydroelectric power is in place a day. A mega watt is 1000 watts. Hydropower is used in 35 million homes nationwide and 1 billion homes worldwide. The 77,000 mega watts of electricity in the U.S. is equal to almost 500 barrels of oil. 11% of the electricity in the U.S. is from hydropower (77,000 mega watts). HISTORY OF HYDROPOWER but then in the 1970 hydropower uses went up The first hydropower plant was in on the fox river in appleton wissconsin . In the 1700 hydropower was used for milling lumber , grain and pumping water for irrigation. hydropower has been uesd for centuries it is one of the ealriest scources of engery factories in the 1800 use water wheel for power in europe and america Thanks for watching!! :D i HATE NATALIE JK:P By Danielle HYDROELECTRIC . . . YOU GO CANADA!! i HATE YOU !! duihbfsjifbikdfjbkjx I HATE YOU NATTO AWESOME!!!!! hydropower declined in the 1940s Peoples homes are getting flooded because dams are over flowing. underwater! GO WASHINGTON!! sup!!! Hydropower. . .

Hydropower Powerpoint

Transcript: And how it functions Hydropower Where hydropower comes from Water the water cycle Hydropower comes from the water cycle it needs rain to work or we cannot produce energy How hydropower works How is it better than non-renewable sources? Non-renewable sources are things like coal, nucler, fossil fuels and natural gas Renewable sources are things like hydropower, windpower, biomass wavepower and geothermal. Cost of harnessing the energy source ...approximatley 10 cents per kW Cost over a 17 million dollars or more, to fix if damaged Where can the energy source be used The energy source can be used in mountainous regions This is a good place to put a hydroelectric power station bad places to put hydroelectric stations Advantages is a clean energy source Provides us with continuous energy Is a great tourist attraction Is a great place for pleasure sports Disadvantages people are forced to move out of their homes Causes big floods mild earthquakes can occur Destroys exotic plant life and eco-systems Costs lot of money and I mean lots For listenening to my presentation

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hydropower

Transcript: Hydropower Hydropower is the nation’s most available, reliable, affordable and sustainable energy source. Requiring only the power of moving water – rivers, streams and ocean tides– hydropower is also domestic and sustainable. Free from a dependence on volatile fuel prices, much of the money spent on hydropower stays in America and expanding hydro capacity would create hundreds of thousands of U.S. jobs. Available Hydropower is keeping the lights on in every region of the country. It is America’s largest source of clean electricity, accounting for 65.9 percent of all renewable energy generation in the United States, and with the right policies, it has significant room to grow Reliable Hydropower has been a reliable source of power in the United States for over 100 years. That proven reliability benefits the national electric grid in a number of ways, from supporting other renewable energy sources to stabilizing the network to storing electricity for later use. Affordable Hydropower is not only a low cost source of renewable electricity, it is among the most cost effective energy sources across the board. And since hydro taps the self-renewing power of our waterways, electricity from hydro is not subject to unpredictable price swings in the markets for energy commodities. Sustainable Using hydropower – our leading source of renewable energy –avoids the emission of more than 225 million metric tons of carbon pollution in America each year Job Creation America’s hydropower industry has the potential to create 1 .4 million cumulative jobs by 2025, putting Americans to work building a 21st century clean energy infrastructure. Other Benefits Hydropower facilities often do more than produce electricity, also providing vital benefits such as flood control, navigation, irrigation, water supply and a range of recreational opportunities.

Hydropower

Transcript: ("Hydroelectric Power") ("Growing") ("Hydroelectric") ("Growing") ("Growing") Changes temperature of river water New dams are expensive Disadvantages 10% of electricity in U.S. New hydro power projects pending in CT Little pollution and waste renewable Drought- no power Blocks fish migration and cuts river in half U.S. has 2,000 facilities Run by gravity and precipitation Low operation and maintenance cost ("Hydroelectric") 1800's - ran timber cutting saws in European and American factories Statistics No longer works ("Growing") ("Hydroelectric Power") Use of water to make electricity 75,187 dams in U.S. - 3% are used U.S.- second largest hydro power producer New England's first industries- run by hydro power Hydro power is reliable- uses gravity and simple machinery Fun Facts clean Erodes riverbed Dams built - river with an incline History in Connecticut Hurts wildlife in river Rivers Alliance of CT is concerned about how hydro dams affect environment ("Hydroelectric") ("Hydroelectric") Canada- largest hydro power producer Hydro power is... Hydro power use in Connecticut Light blue is the web page title Fun Facts Niagara Falls- first hydro electric dam built in 1879 Basic Information Produced in hydro dams free ("Growing") More about Connecticut ("Growing") Not many power plants in Connecticut 19% of electricity in world Hydro power is... Alexa Cardillo Period 9-10 ("Growing") History Advantages ("Hydroelectric power") Lowers greenhouse gas exhaust Hydro power Uses precipitation which is free How it's produced Advantages Disadvantages Dam in Collinsville, CT on Farmington River ("Hydroelectric power") Renewable In Conclusion One of the best forms of energy About 2% of electricity in CT Bibliography Cohen, Nancy. “Growing Interest in Hydro Electricity.” CPBN Connecticut Public Broadcasting Network. 22 Jan. 2008. Web. Oct. 15, 2012. http://www.cpbn.org/growing-interest-hydro-electricity. “Hydroelectric Energy Pros and Cons” Energy Informative. Web. Oct. 6, 2012. http://energyinformative.org/hydroelectric-energy-pros-and-cons/ “Hydroelectric Power.” Alternative Energy. Web. Oct.2, 2012. www.altenergy.org. “Hydroelectric Power.” Tennessee Valley Authority. Web. Oct. 2, 2012. www.tva.gov. “Hydroelectricity.” Boulder, Colorado. Jake Gesner. 4 Oct. 2012. Web. Oct. 4, 2012. http://www.bouldercolorado.gov/index.php?option=com_content&task=view&id=4994&It emid=1189 “Hydroelectricity.” U.S. Environmental Protection Agency. 28 Dec. 2007. Web. Oct. 3, 2012. www.epa.gov. Perlman, Howard.“Hydroelectric Power Water Use.” U.S. Geological Survey. 21 Sep. 2012. Web. Oct. 3, 2012. www.ga.water.usgs.gov. Hydro power

Hydropower

Transcript: Hydropower is energy that comes from the force of moving water. Hydropower in a renewable source because it replenished by snow and rainfall. We won't run out of this as long the sun shines and rain still falls. Hydropwer uses the water cycle to provide energy. More than 2,000 years ago, the Greeks used water wheels to grind wheat into flour. In the late 1800's American and European factories used water wheels to power machines. In the late 19th century, hydropower was first used to provide electrcity. Niagara Falls was the first hydroelectric plant built in 1879. Many more hydroelectirc dams have been built. By the 1940's the Untited States have had the best sites of hydroelectric dams. At the time, fossil fuel plants became popular and can make electricity cheaper than hydropower plants. The price of the oil skyrocketed in 1970's and people became intrested in hydropower again. The easiest way to build a hydro plant is on a river where there is flowing water. Building fake waterfalls across rivers is next best way. In the United States today, there are 80,000 dams but only 2,400 have equipment to generate electricity. Most of the dams are built to control flooding and irigate farm lands. We can increase the amount of hydropwer by putting eqipment to generate electricity on many of the existing dams. The biggest advantages of hydropower dams is that they are able to store energy. The water can be stored in a reservoir and realesed when electricity is needed. Consumers use less energy during the night so the gates can be closed and the water will be held in the resevoir. During the day, the gates with re-open so the consumers can use more energy. Hydropower plants use modern generators to produce electricity, the same way as coal, oil, and nuclear power plants do. The main difference is the fuel. Hydro plants use the force of flowing water to produce electricity. Hydro plant has a system of three main parts. A reservior where the water is stored, a dam where the gates control the water flow and a power plant where electricity is produced. Hydropower provides 5%-10% of the country's electricity. In South America, most of the electricity is produced by hydropower. 20% of the whole worlds electricity is produced by hydropower. Hydropower is the cheapest way to generate electricity in the United States. It is the cheapest because it uses flowing water, which is free to use! Hydropower is a clean energy source. The plants produce NO air pollution because it doesn't burn fuels. But it may disturb wild life and natural recources because it changes the water patterns. On the positive side, hyropwer's fuel supply is clean and renewable becuase it is flowing water. The other benifits are that they can be designed to control floods and provide lake for recreational activites. By: Alyssa & Dyllion The cost and amount of hydropower Hydropower Plants Hydropower and the Enviorment Hydropower Dams Niagra Falls Storing Enerygy The parts of a hydropower plant History of Hydropower A hydropower plant

HydroPower

Transcript: Hydro Power: A Renewable Resource! Hydro Power is the energy that is made from the force of moving water. Moving water is a bi-product of the Water Cycle and can be incredibly powerful, as shown in Floods Hydro Power is renewable, because it is renewed during Precipitation How Energy is Obtained 1:Dams are built so that the water is forced downward into a tunnel called a Penstock. 2:The Force of the Water is then concentrated to spin the turbines inside the tunnel. 3:The moving blades are connected to a generator and that produces electricity. 4:Finally, the electricity is transported through wires to utility companies that use it. Environment Indirect version of solar energy Most Widely used form of renewable energy Will last until the rain stops falling and the sun stops shining Produces a steady supply of energy 2400 energy producing dams in the U.S. What is Hydro Power? Most commonly used in the West coast of the United States Prominent source of energy in South America Cheapest way to generate electricity in the U.S. 16% of the world's energy 5-10% of the U.S.'s energy Greeks used Hydro Power in water wheels to grind flour During the Industrial Revolution, Factories used water to power Machines First used to generate electricity in the early 1900's, First Hydro-electric dam built at Niagara Falls in 1879 Most major dams built by the 1940's Became prominent again during the energy crisis of the 1970's Facts Sun evaporates water from lakes and streams Water is stored in clouds Water falls in precipitation By- Joanne Ha, Valerie Ho, Ben Miller, Will Ederer, Sarina Matson, David Williams Clean energy source No air pollution Alters water patterns and amount of water in rivers Can lower dissolved oxygen in water Can change fish migration patterns Can prevent flooding Can create recreational areas for fishing, swimming and boating The Water Cycle Effects on Environment Use History of Hydro Power

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