Project Profile

Reoptimisation and reoperation study of Akosombo and Kpong dams


Duration : August 1, 2013 - May 31, 2015
(Extended to February 29, 2016)
Overview:

The goal of the Ghana Dam Reoptimisation and Reoperation Project is to contribute to economic growth and poverty reduction through restoration of downstream ecosystems, food systems, and livelihoods by reoperating the Akosombo and Kpong dams. The International Water Management Institute (IWMI) plays the lead role in Activity 1 tasks - Environmental flow process & modeling; Agro-Ecology (Irrigation, farming systems). IWMI will also play the lead role in Activity 4 tasks - ‘Ecosystem valuation’ and ‘Construct cost-benefit model’. Extension - The Akosomobo and Kpong dams supply a significant proportion of Ghana’s electricity. Combined they were designed to generate an average of 6,100 Gigawatt hours per year, with a combined installed capacity of 1180 megawatts. This electricity generation, however, comes at a cost. Hydropower dams such as these disrupt the natural flow of the river they’re built on. Downstream flows become dependent on the balance between water storage and release to supply electricity demand rather than on season patterns of rainfall and runoff in the catchment. By eliminating the annual floods in the Lower Volta River floodplain and estuary, the dams have considerably impacted the livelihoods of the downstream communities and the ecosystems and ecosystem services on which they depend. The Reoptimisation and reoperation study of Akosombo and Kpong dams project aims to contribute to economic growth and poverty reduction through restoration of downstream ecosystems, food systems, and livelihoods by reoperating the Akosombo and Kpong dams.

Location(s): Ghana
Project Contact: Mul, Marloes
Donor(s): African Development Bank

Farmers cultivating lettuce, while another farmer digs a small canal (marwa) with a donkey, Egypt. Photo: cc: Hamish John Appleby/IWMI