Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Aid and Investment - The Akosombo Dam

No description
by

Umar Haroon

on 13 November 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Aid and Investment - The Akosombo Dam

The Akosombo Dam
By Umar Haroon
Advantages and Disadvantages
Advantages
Disadvantages
HEP
Cheap electricity for aluminium smelters at Terma for 30 years
Increased Ghana's export trade
Earning overseas currency
Electricity Production
Provides an international water way
Therefore increased the use of water transport inland
Which links remote northen regions of Ghana
Communication
Lake Volta has lead to an increase in tourism
Tours
Source of irragation water for farming
Economic activity and the Environment
Lake Volta
Hydroelectric Powerplant

Location
Background Information
Built between 1961 and 1966
Consequently flooding the land behind creating Lake Volta
The world's largest artificial lake
Designed to provide electricity through an HEP plant for smelting raw bauxite into aluminium
Funding came from the World Bank with loans of US$40 million and aid grants from UK and USA
Most Ghanians still have to live without electricity because they cant afford it
The smelter built to link up was mothballed between 1998 to 2006
HEP plant is owned by Alcan
export sales of electricity go back to the USA not Ghana
Electricity production
Lake Volta flooded 4% of Ghana's land areas and forced 80 000 people to relocate
Communication
Reduced river flow
less food supply like shrimp
less protein intake

Less silt moving downstream
falling crop yields
less farmer income
Greater poverty caused by falling crop yields
rural-urban migration
deforestation to make money
Increase in water bourne diseases
Economic activity and the Environment
Country
Ghana
Location
Akosombo
Coordinates
6°17′59″N 0°3′34″ECoordinates: 6°17′59″N 0°3′34″E
Status
Operational
Construction
began 1961
Opening date
1965
Construction cost
£130 million
Owner(s)
Volta River Authority


Dam and spillways
Type of dam Embankment,
rock-fill
Height (foundation)
114 m (374 ft)
Length
660 m (2,170 ft)
Base width
366 m (1,201 ft)
Volume
7,900,000 m3 (10,300,000 cu yd)


Impounds
Volta River
Spillways
Twin gate-gontrolled
Spillway capacity
34,000 m3/s (1,200,000 cu ft/s)


Reservoir
Creates
Lake Volta
Capacity
148 km3 (120,000,000 acre·ft)
Surface area
8,502 km2 (3,283 sq mi)
Reservoir length
400 km (250 mi)


Power station
Hydraulic head
68.8 m (226 ft) (max)
Turbines
6 x 170 Francis-type
Installed capacity
1,038 MW
Full transcript