The amount of power generated by the dam in 2009 was originally anticipated to supply about 10% of China's electricity needs, but with China's rapidly growing economy it is only projected to produce approximately 3% at the end of 2006[5]. Over 80% of the country's power is currently produced by coal.
Opposition is mainly due to concerns about the future of over a million people who will be displaced by the rising waters[2], the loss of many valuable archaeological and cultural sites, as well as the effects on the environment.
imagine having a house in your family for 4000 years and now its 200 ft under water....