 The Three Gorges Dam is a hydroelectric dam that spans the Yangtze River by the town of Sandouping , located in Yiling District , Yichang , Hubei province , China . The Three Gorges Dam is the world 's largest power station in terms of installed capacity ( 22 @,@ 500 MW ) . In 2014 the dam generated 98 @.@ 8 TWh of electricity , setting a new world record by 0 @.@ 17 TWh previously held by the Itaipú Dam on the Brazil / Paraguay border in 2013 of 98 @.@ 63 . But in 2015 , the Itaipu power plant resumed the lead in annual worldwide production , producing 89 @.@ 5 TWh , while production of Three Gorges was 87 TWh . 
