Nigeria with a population of 180 million people has a total installed electricity generation capacity of 8,644 MW. However, the peak generation is much lower at around 4,000 MW. The reasons for the shortfall in generation can be attributed to the inadequate fuel supply to thermal plants which constitute over 80% of the installed capacity, hydro-logical factors for hydro power stations, maintenance outages at power plants and transmission & distribution outages. The Peak demand is forecasted at 12,800 MW. When seen against the available power of less than 4,000 MW, it can be noticed that there is a peak load shortage of more than 8,000 MW. As a result, the available generation capacity is less than one-third of the total peak demand for electricity.
Description of asset
The dam is built on the River Niger, just upstream of Kainji Island and has two rock fill embankments separated by an intake dam and spillway. The plant consists of eight units with a total installed capacity of 760 MW.
Kainji dam is located in Borgu LGA of Niger State. Kainji Dam comprises the civil dam structure, the gated spillway, the hydroelectric turbine and generators, and a navigation lock, with monitoring and control systems to all these.
the development perimeter comprises the main concrete gravity dam with earth embanked dams on either side of the main and saddle dams, which closes a secondary valley, and two gates. The main dam is 550m long with a maximum height of 64m. It comprises the water intakes, the flood evacuator and the abutments. The powerhouse is located downstream of the dam, on the right bank, and at right angles to the water intakes. The reservoir, which presently forms the Lake Kainji, is 136 km long and has a capacity of 15 billion m³.
The Kainji powerhouse is equipped with eight turbine-alternator groups including four Kaplan type rated at 80 MW, two turbines also Kaplan type rated at 100 MW and two propeller turbines rated at120 MW. The available head ranges between 23.8 m and 41.2 m according to the water level in the reservoir.
The development perimeter comprises the main concrete gravity dam with earth embanked dams on either side of the main and saddle dams, which closes a secondary valley, and two gates.
Description of services
The PPP Contract is to; operate, maintain,refurbish and expand the power stations; design and conduct restorations; generate power, sell the electricity and provide ancillary services. These services are to be performed in such a way as to increase the available capacity of the power station. The dam stores and safely releases water to generate hydroelectric power, provides flood protection and, supports navigation. The dam generates renewable energy
Rationale for selection of PPP model
The project was conceptualized for the Design, Rehabilitate, Operate, Maintain (recover capacity )and Provision of ancillary services.
hydro power is a clean, efficient and dependable source of electric power at affordable prices. The technology for small hydro is mature and has been in use for decades. The nature of a hydro power project causes limited impact on the flora and fauna of the project area, has no displacement or rehabilitation impact on human
The services in the project requires the operation and maintenance of the existing capacity of the power station , to restore generation capacity which is currently damaged and to design construct , operate and maintain new generation capacity and to comply with the performance requirements and standards detailed in the agreement .
Stakeholder engagement carried out during the PPP process. Stakeholder identification and vulnerability analysis of existing communities carried out, implementation and periodic review of stakeholder engagement plan to address issues of power supply equity in surrounding communities. Project update consultation events undertaken with communities within the environmental and social areas of influence.
Public grievance mechanisms (PGM) developed for appropriate use for local communities based on existing standards. PGM disseminated to communities within area of influence through respective channels. The PGM addresses how parties can raise grievances with the management directly and has been distributed to residents of surrounding communities
Project Summary document
The Kainji/jebba and Shiroro Hydro Power Plants Concession was undertaken by BPE during the global privatization of unbundled PHCN successor
companies. The transaction commenced (in 2007) before the inauguration of the ICRC; was stalled and subsequently re-commenced .The transactions were guided by the approvals
received by NCP alongside the other GENCO’s and DISCO’s.