The ongoing circulation of water between the lake and the outer sea during the energy generation process has improved the water quality. “The 552.7 GWh of electricity generated from Sihwa tidal power plant is equivalent to 862,000 barrels of oil, or 315,000 tons of CO 2 – the amount produced by 100,000 cars annually.” Around 160 million tonnes of water flows in and out of the floodgate and waterwheel, which is responsible for half of the total water quantity in Sihwa Lake. The 254 MW Sihwa project, consisting of 10 water turbine generators, has enough power to support the domestic needs of a city with a population of 500,000 people. Difficult to provide tidal energy to coastal communities, as the energy produced by the tides is often a long distance from where the electricity will be used inland.Ĭurrently, the Sihwa Lake project remains the world’s largest tidal power station in operation, located on the west coast of South Korea.Powerful tides only happen normally 10 hours out of each day, this means the tidal energy storage capacity must be developed. Maintaining and repairing equipment can be a challenge.Environmental issues such as habitat change, particularly with tidal barrages.It is currently expensive to construct tidal power plants as they require high capital investments. What is stopping us from making the most of tidal energy?
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