The Tidal Power Alexander Mitrofanov ICT Praha 2012
Index• Introduction• Tides• Tidal power and wave power• How it works• The difference between the Two• Types of tidal plants• Pros and Cons of Tidal Power• Currents sites of tidal power plants• Kislaya Guba Tidal Power Station• References
Introduction Tidal power, also called tidal energy, is a formof hydropower that converts the energy of tides into useful forms of power - mainly electricity. This is the only form of energy whose source is the moon.
TidesTides are the rise and fall of sea levels causedby the combined effects of the gravitationalforces exerted by the Moon and the Sun andthe rotation of the Earth.
Wave Power Wave power devices take energy directly from surface waves or from pressurefluctuations below the surface. Wave power isof course powered by waves. As a wave goes by, the buoy rotates and transforms mechanical energy into electrical energy.
Wave Power Pros Cons• Consistent Power • Device Breakdown Pollution-Free • High Initial Costs• Low Operating Costs • Noise• Renewable• Minimal Visual Impact
Tidal PowerTidal power is actuated by a turbine under water that spins making the mechanicalenergy to electrical throw a generator that send the electrical energy to the shore.
Types of tidal plants Tidal Barrage Tidal current turbinesAre Typically dams, built Make use of the kineticacross on estuary of bay energy of moving water to power turbines in a simular way to wind turbines that use wind to power turbines
Types of tidal plantsTidal Barrage Tidal current turbines
Tidal BarrageThe Rance tidal barrage in North-West France is the largest in the world
Significant benefits from using Tidal Energy include:• Electrification of isolated communities• Generation for the grid Regrowth of coral reefs using mineral accretion technology• Substitution of imported petroleum used to generate electricity
Tidal Barrages Pros Cons• Mature technology • High costs of that has been around construction for nearly 50 years • Environmental impacts• Reliable energy source. on marine life • Low power output in comparison to other energy source like coal and nuclear power plants .
Tidal Current Turbines Pros Cons• Able to utilize both ebb • Tidal current turbine and flood tides technology is young in• Tidal current turbines its development are not large massive • Installation and dam structure. maintenance challenges • Environmental impacts are still being tested
Current sites of tidal power plants Station Capacity Country (MW)Sihwa Lake Tidal Power 254 South KoreaStationRance Tidal Power Station 240 FranceAnnapolis Royal Generating 20 CanadaStationJiangxia Tidal Power Station 3.2 ChinaKislaya Guba Tidal Power 1.7 RussiaStationUldolmok Tidal Power 1.5 South KoreaStationStrangford Lough SeaGen 1.2 United Kingdom
Kislaya Guba Tidal Power Station• In Russian name means Sour Lip• The station is the worlds 4th largest tidal power plant• The output capacity of 1.7 MW• Construction on the project began in 1968• Consists in the state register as a heritage of science and technology.• Situated under the Polar Circle