Soubré Hydroelectric Power Station
Hydroelectric power station in Ivory Coast
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Through Build–operate–transfer
Location
The power station lies across the Sassandra River near the city of Soubré, in the Soubré Department of the Nawa Region in the Bas-Sassandra District, in southwestern Ivory Coast. Soubré is located approximately 366 kilometres (227 mi), by road, northwest of Abidjan, the financial capital and largest city in the country. The geographical coordinates of this power station are:05°48'09.0"N, 6°39'21.0"W (Latitude:5.802500; Longitude:-6.655833).
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Overview
The power station harnesses a cascade of waterfalls that drop 19 metres (62 ft) over 4.5 kilometres (2.8 mi). The water is directed over three groups of Francis type turbines, each rated at 90 MW. A 5 MW generator is also inserted in the instream flow, for an extra boost to the output. The power station generates a calculated annual output in excess of 1,200 GWh.
Other infrastructure installations related to this power house include (a) a spillway, with waterflow at 5,500 cubic meters (5,500,000 L) per second (b) an outflow canal measuring 2.5 kilometres (2 mi) in length (c) a switchyard (d) a 225kiloVolt evacuation power line measuring 380 kilometres (236 mi) from Soubré to Abidjan and (e) a bridge capable of carrying two-way motorised traffic.
Ownership
The power station is owned by the government of ivory Coast, through its wholly owned public electricity utility company CI-Energies.
Construction costs and funding
The cost of construction is reported as €500 million in 2017 money. Exim Bank of China lent 85 percent of the cost and the Ivorian government contributed 15 percent of the cost as equity investment. The engineering, procurement and construction (EPC) contract was awarded to Sinohydro, under a build–own–operate–transfer (BOOT) arrangement, where Sinohydro came up with the construction money upfront and was paid a lump sum at closing, when the project was operational. Sinohydro is a subsidiary of PowerChina. The owner's engineer was Tractebel-Engie of France.
Other considerations
In December 2018, the Ivorian government reported that they had connected 60 new villages to the energy generated at Soubré Hydroelectric Power Station. Using €137.82 million borrowed from the African Development Bank, the authorities plan to transmit power to the cities of Duékoué, San Pedro and Zagné. Through those cities, a total of 252 rural localities in Montagnes District are expected to receive grid electricity for the first time.