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Understanding Hydroelectricity: A Quiz on Hydropower

Test your knowledge on hydroelectricity and hydropower with this engaging quiz. Explore key concepts, historical facts, and the impact of hydroelectric projects around the world.

1 As of 2007 the Kárahnjúkar Hydropower Project in ________ remains controversial.

2 Since hydroelectric dams do not burn fossil fuels, they do not directly produce ________ (a greenhouse gas).

3 It supplies electricity to all over the regions of ________.

4 Some hydroelectric projects also use ________ to divert a river at a shallower gradient to increase the head of the scheme.

5 The oldest continuously-operated commercial hydroelectric plant in the United States is built on the Hudson River at ________.

6 The Three Gorges Dam complex on the Yangtze River in Hubei, ________, has the world's largest generating capacity and generates the most electricity in the world.

7 This has led to some areas transporting smolt downstream by ________ during parts of the year.

8 Which of the following titles did Hydroelectricity have?

9 In Suriname, the Brokopondo Reservoir was constructed to provide electricity for the ________ aluminium industry.

10 Pumped storage schemes currently provide the only commercially important means of large-scale grid energy storage and improve the daily ________ of the generation system.

💡 Interesting Facts

  • the Hearthstone House (pictured) became the first residence in the world to be lit by a centrally located hydroelectric station using the Edison system.
  • the Apalachia Dam in North Carolina has an underground conduit carrying water from the dam's reservoir to its hydroelectric powerhouse 12 miles (19 km) away in the neighboring state of Tennessee.
  • the Montgomery Worsted Mills, a Registered Historic Place in Montgomery, New York, now earn most of their money by generating hydroelectric power from the nearby Wallkill River, rather than the manufacture of textiles.
  • the Nurek Dam in Tajikistan is the tallest dam in the world, and in 1994 generated enough hydroelectric power to supply three-quarters of that country's generation capacity.
  • the Yeywa Hydropower Dam is the largest hydroelectric power plant and the first roller-compacted concrete dam in Burma.
  • the sawmill in Aumond, Quebec, built in 1862, also provided electricity and remained in operation until 1989.
  • over 25% of Brazil's electricity is generated by a hydroelectric plant at Itaipu on the Paraná River.
  • Project Aqua was a proposed hydroelectric scheme for the lower Waitaki River in New Zealand that would have diverted up to 77% of the river's flow into a separate canal.
  • eight small Norwegian municipalities were fooled into investing future income from hydropower plants into complicated financial products - now worthless - from Citigroup, in the so-called Terra Securities scandal.
  • instead of voting to determine the site of a proposed hydroelectricity dam, tens of thousands of Tasmanians protested by writing "No Dams" on their ballot papers in the 1981 power referendum.
  • more than 95 percent of the electricity generated in Paraguay is produced by two hydroelectric plants in Itaipu and Yacyretá, most of which is exported to Brazil and Argentina.
  • Chatuge Dam and Nottely Dam in the Tennessee Valley were originally constructed in 1942 solely for flood control to maximize hydroelectric production at Hiwassee Dam, but were only outfitted with power generators later in the 1950s.