Lesotho Water Project case study Flashcards

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1
Q

Why is Lesotho a good location for a dam project?

A
  • high rainfall due to high altitude
  • high altitude allows for dams to built across the mountainous region
  • lots of tributaries across mountain ranges
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2
Q

How has the country benefitted?

A
  • South Africa buys water from the country
  • can control flow of water, good for local communities
  • generate 72Mw of electricity through HEP schemes
  • $30 million per month from the sales of the water
  • environmetally friendly energy production
  • help protect habitats due to ensuring a sustainable water supply
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3
Q

What have been the negative impacts?

A
  • damage local ecosystems
  • poor infrastructure leads to leakages
  • costs the country a huge amount of money
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4
Q

Describe the country Lesotho?

A
  • South Africa, below Tropic of Cancer
  • mountainous
  • newly independent from UK
  • poor: low amounts of resources, high levels of povervty
  • only 11720 sq miles, 137th biggest country in world
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5
Q

What are the Katse and Mohale Dams?

A
  • completed in 1998 and 2002
  • store water
  • transferred through tunnel to the Mohale Reservoir
  • then transferred to South Africa through a 32km tunnel
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6
Q

What is the Polihali Dam?

A
  • will hold 2.2 billion metres.cubed of water

- 38km transfer tunnel

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7
Q

What is the Tsoelike Dam?

A
  • confluence of Tsoelike and Senqu rivers
  • storgae capacity of 2223 million metre.cubed
  • pumping station
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8
Q

What is the Ntoehae Dam?

A
  • 40km downstream from the Tsoelike Dam
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9
Q

How long will the tunnels be in total by 2020?

How much water will be transferred to South Africa each year?

A
  • 200km of tunnels

- 2000 million metres.cubed

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