Hypower Special Issue Three Gorges, China - Voith Hydro

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Hypower Special Issue Three Gorges, China Next stage: Three Gorges II While design and engineering within the international alliance still requires enormous logistical effort from all Voith Siemens Hydro locations involved in this project, top level executives and project managers in the company’s Chinese and German locations are already planning for the future. Bid preparation for the right bank powerstation of Three Gorges is in full swing. On the basis of the excellent design and performance from the machines in Stage I, as well as the close customer relationship developed during this phase, Voith Siemens Hydro is confident to be able to continue its support to the China Yangtze Three Gorges Project Development Corporation with solutions and stateof-the-art equipment for the largest power project ever built in China. Facts and figures The project is located in the Chinese province of Hubei, upstream from the city of Yichang. Project cost is estimated at 25 billion US Dollars. Main project objectives are flood control, power generation and improvement of navigation on the Yangtze River. Flood control will be achievable by controlling water flows in the summer season and providing controlled water discharge to the central and lower Yangtze regions. Thus an area of 1.6 million hectares, inhabited by 15 million people is protected. Historically, floods have killed thousands of people and made millions homeless at almost regular 10-year intervals. Three Gorges site at night During the 1998 flood, the cost of providing emergency protection for the city of Wuhan, other downstream cities and areas of cultivated land, combined with the cost of clearing up flood damage was comparable to the capital cost of the dam. The plant will provide electric energy mainly to Central and Eastern China, regions that enjoy strong economic growth. Also, the province of Sichuan will get a share of the plant’s total output of 18,200 MW. The project will generate 84.7 TWh annually, replacing about 50 million tons of raw coal burned in thermal plants. This will save 100 million tons of CO2, two million tons of SO2, 10,000 tons of CO, and 370,000 tons of NOx emissions.
Three Gorges dam under construction Artist view of the Three Gorges dam Ship navigation will be improved, making it possible for a 10,000 ton barge (compared to currently 3,000 tons) to sail upstream directly to the harbors of Chongqing. Embedding the spiral case This will increase annual river transportation from 10 million tons to 50 million tons, reduce transport costs by one third and result in significant improvements for the economic infrastructure of the inland provinces. New sources of food by the introduction of fish farming and aquaculture in the new reservoir have been part of the development plan since its beginning. A better supply of irrigation water to the newly developed farmland will also be achieved. The Chinese authorities plan to construct 146 sewage treatment plants along the river to reduce current industrial and residential pollution into the Yangtze. History The first concepts for the gigantic project were initially developed by Dr. Sun Yat-sen at the beginning of the 20th century. The construction time from the site preparation to the final commissioning of the 26th unit in 2009 stretches over 17 years. hypower special issue 06 07
Page 1 and 2: Special issue on the commissioning
Page 3 and 4: Gorges Project Development Corporat
Page 5: Velocity high Stator frame delivery

Hypower Special Issue Three Gorges, China - Voith Hydro

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