20 Questions
What is the world's biggest source of renewable energy?
Hydroelectricity
How do hydroelectric power stations generate energy?
By using water flow to spin a turbine
What is the primary concern about the long-term sustainability of hydropower?
Causing flooding and disrupting wildlife
What is installed capacity in the context of hydroelectric power plants?
Maximum amount of power that a plant can generate under full load
What is the installed capacity of China's Three Gorges Dam?
22.5 GW
Which dam has an installed capacity close to double the second-place Itaipu Dam?
China's Three Gorges Dam
What is the annual output comparison between Itaipu Dam and Three Gorges Dam?
They produce about the same amount of electricity
What impact did the construction of Three Gorges Dam have on earthquakes and landslides?
Triggered over 3,000 earthquakes and landslides since 2003
What impact did the construction of Three Gorges Dam have on the Earth's rotation?
Slowed the Earth’s rotation by 0.06 microseconds
What is a concern related to large upstream reservoirs for hydroelectric dams?
Disruption of wildlife and water quality
What is a consequence experienced by river-dependent populations located downstream of large dams?
Food insecurity and flooding
What risk does climate change pose to hydropower?
Rising frequency of droughts making hydroelectric dams less economical
What is the installed capacity of China's Three Gorges Dam?
22.5 GW
What is the annual output comparison between Itaipu Dam and Three Gorges Dam?
They produce about the same amount of electricity
How much did it cost to construct the Three Gorges Dam?
$32 billion
What impact did the construction of Three Gorges Dam have on earthquakes and landslides?
Triggered over 3,000 earthquakes and landslides since 2003
What is a concern related to large upstream reservoirs for hydroelectric dams?
Disrupting wildlife and degrading water quality
What is a consequence experienced by river-dependent populations located downstream of large dams?
Food insecurity and flooding
What is perhaps the greatest risk to hydropower according to the text?
Climate change itself
What is the mass of water contained in the Three Gorges Reservoir?
39 trillion Kg (42 billion tons)
Test your knowledge on the world's largest hydroelectric dams and their key information as of 2021. Learn about the significance of hydroelectricity and its potential impact on the environment.
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