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Usine Maremotrice de la Rance, Dinard

Categories: Specialty Museums, Museums
Inspirock Rating:
4.9/5 based on 40+ reviews on the web
The Rance Tidal Power Station is a tidal power station located on the estuary of the Rance River in Brittany, France.Opened in 1966 as the world's first tidal power station, it is currently operated by Électricité de France and was for 45 years the largest tidal power station in the world by installed capacity until the South Korean Sihwa Lake Tidal Power Station surpassed it in 2011.Its 24 turbines reach peak output at 240 megawatts and average 57 megawatts, a capacity factor of approximately 24%. At an annual output of approximately 500 GWh (491 GWh in 2009, 523 GWh in 2010), it supplies 0.12% of the power demand of France. The power density is of the order of 2.6 W / m². The cost of electricity production is estimated at 12 eurocents of kWh.The barrage is 750m long, from Brebis point in the west to Briantais point in the east. The power plant portion of the dam is 332.5m long and the tidal basin measures 22.5km2.HistoryAn early attempt to build a tidal power plant was made at Aber Wrac'h in the Finistère in 1925, but due to insufficient finance, it was abandoned in 1930. Plans for this plant served as the draft for follow-on work. Use of tidal energy is not an entirely new concept, since tidal mills have long existed in areas exposed to tides, particularly along the Rance.
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  • 50 years old and still in production, without a significant impact on future generations, renewable energy to renew
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  • a dinard vacationing there s stop at the dam to admire the beautiful view of the coast and the dam passage of boats and visit inside with guide of the construction and use of the dam
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  • every year, 70,000 people, according to EDF, would visit the Rance tidal plant. It is because this technological achievement, imagined by 1943 and inaugurated in 1956 by General De Gaulle, deserves much more. For 45 years, she was the most powerful in the world, its 24 groups bulbs which include electromechanical equipment developing each 10 MW. She was dethroned by the factory tidal Silwa, in Korea, in August 2011 (254 MW). Located in the estuary of the Rance in La Richardais, a few kilometers from Dinard, the plant uses the amplitude of the tides (13.50 m) to produce enough electricity to serve 233 000 inhabitants, with a population equivalent to that of Rennes; twice a day, the tide fills and empty the estuary at the rate of 18 000 m3 per second, turning the turbines when filling and its dump. Plant, 390 m to 33 m wide long allows the passage of 20 000 boats a year through a lock of 65 m long and 23 m wide and the traffic on the road to Dinard in St-Malo 26 000 / day up to 60,000 vehicles in the summer (beware, there is a radar at 1.5 km further) (, on the right!...). The visit is free like parking in the parking lot. Panels and videos expose the technical prowess and the beneficial effects to the fish and fauna. It is only a pity that an economic assessment (cost of the studies, the achievement, maintenance and energy income), unless error on our part, does not appear.
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