Hydroelectricity is the most widely used form of renewable energy. Feb 11, 2017 this video shows you how does hydroelectricty works, and some examples of hydroelectric power plant in the philippines. Worldwide, hydropower plants produce about 24 percent of the worlds electricity and supply more than 1 billion people with power. How hydropower works understanding the water cycle is important to understanding hydropower. It is a flexible source of electricity and also the cost of electricity generation is. He found that when a magnet is moved past a conductor, it causes electricity to flow. Hydroelectricity simple english wikipedia, the free. A crossflow design works better with low head but high flow. Apr 15, 20 hydroelectricity is an established powergeneration technology with over 100 years of commercial operation. History of hydroelectric power ancient history of hydroelectric power. Pelton design, for example, works best with high head. Pumpedstorage hydroelectricity an overview sciencedirect. Hydroelectric power is a preferred energy source in areas with heavy rainfall and with hilly or mountainous regions that are in reasonably close proximity to the main load centres.
Hydroelectricity is produced when moving water rotates a turbine shaft. Hydroelectricity may be extracted from water but it depends not only on the volume of water but also on the difference in height between the top of the penstock and where the water spins the turbine. There are several types of hydroelectric facilities. How hydroelectric energy works published jul 14, 2008 updated dec 12, 2014 by taking advantage of gravity and the water cycle, we have tapped into one of natures engines to create a useful form of energy. Hydroelectric energy, also called hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motionsuch as water flowing over a waterfallto generate electricity. Josepha sherman is a writer, editor, and folklorist. Hydroelectricity is an established powergeneration technology with over 100 years of commercial operation. Large scale hydroelectricity projects typically involve dams. Hydroelectric power works to harvest the inherent energy of moving water by directing the water through turbine converting the energy of the moving water into mechanical energy. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower. When the water is released, the pressure behind the dam forces the water down pipes that lead to a turbine. The basic principle of hydropower is that, if water is piped from a certain level to a lower level, the resulting water pressure can be used to do work.
This difference in height is often referred to as the head. Hydroelectric power works to harves t the inher ent energy of moving water by directing the water through turbine c onverting the e nergy of the moving wat er into mec hanical ene rgy. Hydroelectric power, or hydroelectricity, is generated by the force of falling water. Most hydroelectric power comes from the potential energy of dam water driving water turbine and generator. The basic idea of hydropower is to use the power of a moving liquid to turn a turbine blade. An important advantage of hydroelectric dams is their ability to be used as a peaking power plant. When the water is released, the pressure behind the dam forces the water downpipes that lead to a turbine. Hydroelectricity is a renewable energy source that is made from the energy created from falling water. Some large hydro sites that are remote from load centres may be sufficiently attractive to justify the long highvoltage transmission lines. Hydroelectricity is dependent on amount of precipitation and will vary somewhat over time.
Runofriver and tidal projects also harness the power of moving water to generate renewable electricity. There are several methods for using water to power a hydro turbine generator, but they each generally function in a relatively similar manner, all using the same. We all know that hydroelectricity is both renewable and green, but what are the other advantages this technology offer. Introduction to hydropower hydroelectric power, or hydroelectricity, is basically electrical energy that has been generated using natural forces such as gravity or flowing water. Hydropower or hydroelectricity refers to the conversion of energy from flowing water into electricity. Over two thousand years ago, people in greece used flowing water to turn the wheel of their mill. While hydroelectric power is widely regarded as an advanced form of energy, according to the u. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Hydroelectricity generation i 4 san joaquin rivers by water year october 1 to september 30. Hydroelectricity is electricity produced from hydropower. The power extracted from the water depends on the volume and on the difference in height between the source and the waters outflow. It is considered a renewable energy source because the water cycle is constantly renewed by the sun historically, one of the first uses of hydro power was for. Hydropower facts and information national geographic.
Fluid the system will use an electrically conductive fluid sacs to hold the fluid one sac is placed in the heel and another in the toe section of the shoe conduits conduits connect each sac to a microgenerator turbine as water moves back and forth in the sole, it moves the blades of a tiny turbine microgenerator the generator is located between the two fluidfilled sacs, and. Geological survey usgs, hydroelectric power plants and coalfired power plants generate power through fundamentally similar mechanisms. Mar 21, 2020 hydroelectric power is a preferred energy source in areas with heavy rainfall and with hilly or mountainous regions that are in reasonably close proximity to the main load centres. The operation of a generator is based on the principles discovered by faraday.
However, the plants differ in terms of the energy sources they use to rotate their. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Hydroelectricity gelfand center carnegie mellon university. Generation of electricity by hydropower potential energy in stored water is one of the cleanest methods of producing electric power.
Water constantly moves through a vast global cycle, evaporating from lakes and oceans, forming clouds, precipitating as rain or snow, then flowing back down to the ocean. Animation explaining how electricity is produced using a hydroelectric facility. A hydraulic turbine converts the energy of flowing water into mechanical energy. Hydroelectricity is produced when moving water rotates a. Its one of the cleanest sources of energy, and its also the most reliable and costs the least. From this head, it can be determined the exact amount of potential energy that can. The way the electricity is produced does not harm the environment as much as fossil fuels like oil or coal do. This water vapor condenses into clouds and falls back onto the surface as precipitation. Hydroelectricity is generated or manufactured in large power generating stations using the same basic principle as a small grist mill yet on a much larger and vastly improved scale for better efficiency, using pumped storage. Turbines and generators convert the energy into electricity. It is usually made with dams that block a river to make a reservoir or collect water that is pumped there.
Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Pumped hydroelectricity storage phs is the oldest kind of largescale energy storage and works on a very simple principletwo reservoirs at different altitudes are required and when the water is released from the upper reservoir to the lower reservoir, energy is created by the downflow, which is directed through a turbine and generator to create electricity. The stator is the part that remains stationary and has coils of wire to collect electricity. Hydroelectric energy how hydroelectricity works hydroelectric energy is produced when the kinetic energy of water is converted into electricity using a hydro turbine generator. A turbine converts the kinetic energy of falling water into mechanical energy. This causes the turbine to turn, which turns a generator which makes electricity. Then a generator converts the mechanical energy from the turbine into electrical energy. Hydroelectric power is a great alternative to conventional ways of generating power.
A water turbine generator is a device that converts water power into electricity. Hydroelectric energy pros and cons energy informative. These electrical generators are attached to massive turbine devices which spin at great speeds as a result of water. Hydroelectricity is mainly produced on the doubs and loue rivers. Home electrical machines alternator simple project on hydroelectric power station with turbine. Hydroelectric power comes from water at work, water in motion. Most hydroelectric power comes from dammed water driving a water turbine and generator. As to how this generator works, the corps of engineers explains it this way. These alternate power sources include solar energy, wind power and hydroelectricity. Typically, a large dam has to be built in the middle of a river to perform this function. In the hydrologic cycle, atmospheric water reaches the earths surface as precipitation.
Conduct electricity from the hydropower plant to homes and business. For over a century, the uk has benefited from hydroelectric power or generating electricity from water. She won the 1990 compton crook award for the shining falcon. A hydroelectric generator converts this mechanical energy into electricity. The worlds hydropower plants output a combined total of 675,000 megawatts, the energy equivalent of 3.
In a report generated by the world atlas of hydropower and dams, it found that in the uk we generate over 5885 gwhyear using purely hydro, with an additional 2800 mw capacity of existing pumped storage. In order to choose the appropriate generator for a specific application. It includes a number of generation and storage technologies, predominantly hydroelectricity and pumped hydro energy storage phes. There are more than 2,000 hydropower plants operating in the united states, making. Hydroelectric power is produced through a relatively straightforward process. It can be seen as a form of solar energy, as the sun powers the hydrologic cycle which gives the earth its water. The most popular and widely used method all over the world is generation of electricity using water, called hydroelectricity. A typical hydroelectric plant is a system with three parts. Yet because the source of hydroelectric power is water, hydroelectric power plants must be located on a water source. How hydroelectric energy works union of concerned scientists. Also known as hydropower, it refers to the conversion of energy from flowing water into electricity. Converts the mechanical energy from the turbine into electric energy. An introduction to hydropower concepts and planning.
Apr 28, 2020 hydropower and pumped hydro energy storage converts the energy of moving water into electricity. Ppt hydroelectricity powerpoint presentation free to. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Hydroelectricity is very powerful and safe, and produces no waste. Over two thousand years ago, people in greece used flowing water to turn the wheel of their mill to ground wheat into flour. Simple project on hydroelectric power station with turbine. Hydroelectric energy is produced when the kinetic energy of water is converted into electricity using a hydro turbine generator there are several methods for using water to power a hydro turbine generator, but they each generally function in a relatively similar manner, all using the same fundamental laws of physics. This video shows you how does hydroelectricty works, and some examples of hydroelectric power plant in the philippines. May 31, 2019 hydroelectric energy, also called hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motionsuch as water flowing over a waterfallto generate electricity. Likewise, other turbine types such as francis, turgo and kaplan, each have optimum applications. Hydroelectricity is electricity made by generators that are pushed by movement of water.
Hydroelectricity renewable energy generation explained. Todays water power plants come in many sizes, from the massive hoover dam to smallscale projects that harness water flows in drainage ditches or irrigation facilities. The amount of energy extracted from the moving water depends on the volume of water and on the difference in height between the waters source and outflow. Ppt hydroelectricity powerpoint presentation free to view.
These favorable characteristics continue to make hydroelectric projects attractive sources of electric power. A hydroelectric dam converts the potential energy stored in a water reservoir behind a dam to mechanical energymechanical energy is also known as kinetic energy. Hydroelectric power plants are an important source of electricity in the united states. Build your own hydroelectric generator page 3 of 9 a renewable energy project kit the pembina institute a. Sep 28, 2008 animation explaining how electricity is produced using a hydroelectric facility. Hydropower is using water to power machinery or make electricity. The mechanical energy is then converted into electricity in the generator. There are several methods for using water to power a hydro turbine generator, but they each generally function in a relatively similar manner, all using the same fundamental laws of physics. Background directly from eia and doe hydropower is one of the oldest sources of energy doe. In the water cycle solar energy heats water on the surface, causing it to evaporate.
Hydropower plants capture the energy of falling water to generate electricity. Water is considered to be the earliest renewable energy resource to be exploited by man. It was used thousands of years ago to turn a paddle wheel for purposes such as grinding grain. Pumped hydroelectricity storage phs is the oldest kind of largescale energy storage and works on a very simple principletwo reservoirs at different altitudes are required and when the water is released from the upper reservoir to the lower reservoir, energy is created by the downflow, which is directed through a. Hydroplants range in size from microhydros that power only a few homes to giant dams like hoover.