The award goes to China this time, concretely The Three Gorges Dam in Hubei, with an installed capacity of 22.500 megawatts. This facility is located in the Yangtze River, the longest in Asia and third in the world. However, the river doesn't provide that magnificent amount of electricity all the months of the year.
In total there are 32 turbines with 50MW each, trying to get the best performance in a very wide river. Besides, the plant helps control the powerful Yangtze for its potential overflows and dangerous rises.
In the other side, a plant of this size creates controversy for ecological impact. The construction of the Three Gorges Dam has brought considerable criticism, but the Chinese government it's well-aware of the necessity to move toward renewable energies instead of technologies that do imply pollution and overall toxicity. Let's recall that China is one of the most polluted countries due to its intense production with technologies that cause pollution.
From an engineer's point of view, the dam seems to have different complexities. More than 2km of length, 27 million cubic meters of concrete and 463 tonnes of steel make this construction one of the world's more laborious. Simply spectacular, with an undeniable interest for tourism and photography.