Also, tidal power can be controlled for no longer than 10 hours each day. HARNESSING TIDAL ENERGYTwo Harnessing Methods• Using turbines• Using pushplates 2. Current technology also limits the suitable geographic location of tidal energy plants. As the oldest tidal energy farm, we can learn a lot from the Rance Tidal Power Station regarding tidal energy efficiency and its real costs. Components of Tidal Power Plants: For utilization of tidal energy, water must be trapped at high tide behind a dam or barrage and then made to drive turbine coupled to an electric generator as it … The next largest tidal power plant is in Annapolis Royal in Nova Scotia, Canada, with 20 MW of electricity generation capacity. For example, sites must have a tidal range of at least 7 meters (about 23 feet). A large variety of designs are being experimented with, with some very close to large scale deployment. The U.S. has only a handful of sites appropriate for an economically competitive commercial plant. Unlike barrages, however, tidal lagoons can be constructed along the natural coastline. The oldest and second-largest operating tidal power plant is in La Rance, France, with 240 MW of electricity generation capacity. A seashore must meet specific criteria to host a tidal power station. The expansion of tidal power is rather slow because the cost of building a tidal power station is very high (upwards of $1.3 million per MW). A tidal energy generator using tidal lagoons would function much like a barrage. Tidal energy is produced through the use of tidal energy generators. 6. Siting: Suitable sites for tidal power plants must meet specific requirements. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity. As an example, the La Rance tidal barrage power plant was constructed in 1966 and is still generating large amounts of electricity up to this day. China, Russia, and South Korea all have smaller tidal power plants. Tidal Power. Working of tidal power plant 1. It reduces foreign importation of fuel. USING TURBINESProduction Of Power From Tidal Energy• Step 1: A location has to be found where thereis sufficient tidal changes to create enoughenergy to power turbines.• Step 2: A dam or barrage is created 3. Operation. To date, this tidal energy farm has recovered its initial development costs and now produces energy at a cheaper rate per kWh than that of a typical nuclear power plant. Classification of Tidal Power Plants 3. The turbines work as the lagoon is filling and emptying. 1. One of those criteria is having a tidal range of over 7 meters. Tidal energy is a form of hydroelectric power relying on tides that affect large bodies of water such as bays, estuaries, lakes and inlets in order to generate clean energy from flowing water and ocean currents. The 240MW La Rance tidal power plant on the estuary of the Rance River in Brittany, France, has been operational since 1966 making it the world’s oldest and second biggest tidal power station. The gearing of the equipment is tremendous to turn the very slow motion of the tide into enough displacement to produce energy. The environmental impact of tidal lagoons is minimal. Compared to hydropower, wind energy and solar, tidal energy is currently much less popular in the UK due to recent government policy on the development of sustainable energy. Inventors How Tidal Power Plants Work The rise and fall of the sea level can power electric-generating equipment. The renewable power plant, currently operated by Électricité de France (EDF), has an annual generation capacity of 540GWh. 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