Approved project | PIDA PAP 2

Approved project

3,050 MW Mambillla Hydroelectric Power Project

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Basic Information

Project Title	3,050 MW Mambillla Hydroelectric Power Project
PIDA Sector	Energy
PIDA Sub-sector	Generation – Hydro
Member States	Nigeria
Region	Western Africa
Beneficiary Countries	Benin, Burkina Faso, Chad, Cote d'ivoire, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Niger, Nigeria, Senegal, Sierra Leone, Togo
Regional Economic Community	Economic Community of West African States (ECOWAS)
Project Institution	Federal Ministry of Power, Nigeria

Strategic Alignment and Regional Commitment

Source in the National Master Plan	Nigerian Electricity Vision 30:30:30; Nigerian Transmission Master Plan, Fishner 2017
Source in the REC Master Plan	The ECOWAS Master Plan for the Development of Regional Power Generation and Transmission Infrastructure 2019-2033
Brief Description of the Project	Mambilla hydropower project is a 3.05GW hydroelectric facility being developed on the Dongo River near Baruf, in Kakara Village of Taraba State, Nigeria. The project is being undertaken by Nigeria’s Federal Ministry of Power and is expected to go into full commercial operation in 2030. When completed Mambilla will be Nigeria’s biggest power plant, producing approximately 5.457 billion kWh of electricity a year. Mambilla hydroelectric facility will comprise of four (4) dams and two (2) underground powerhouses having twelve (12) turbine generator units in total. The four (4) dams to be constructed on the Dongo River for the Mambilla hydropower project include Nya (formerly known as Gembu), Sumsum, Nghu and Api Weir dams (Design review ongoing currently to reduce the number of dams with a view to improve project viability). Nya and Sumsum will be 100m and 35m-tall roller compacted concrete (RCC) dams with crest length of 515m and 460m, respectively. Nghu will be a 95m-high rockfill dam with a crest length of 650m, while Api Weir will be a small regulatory dam to raise the water level of the river. Nya and Sumsum dams will be connected through a 16km-long, 6m-diameter tunnels, whereas Sumsum and Nghu dams will be connected by a 1.5km-long and 10m-wide canal. The headrace canal for the plant will be 3.1km-long and 15m-wide. Each underground power house of the plant will measure 175mx27mx38m and house six (6) 250MW Pelton turbine units operating at a total dynamic head of 1,007m. The diameter of the power shafts connecting each turbine will range between 5.25m and 8.40m. The project is estimated to cost $5.8bn and will generate up to 50,000 local jobs during the construction phase. Two 6km-long tailrace tunnels for the plant will be of 8m diameter each, while the tailrace canal will be 3km-long and 25m-wide.
Objective and Rationale for the Project	To increase electricity access of the country; stimulate economic growth development and enhancement of living standards of millions of Nigerians and neighbouring countries, in particular increase power export to Niger, Togo, Benin and Chad. The rationale of the project is to increase Nigeria’s current electricity generation by 30% which will also increase the country’s baseload electricity generation capacity, hence improving grid stability. This will also improve the living conditions of the rural population within and around the project location especially women. Enabling women entrepreneurs have access to affordable electricity that could help increase their profit. The project will be a major source of additional power generation capacity that will make Nigeria meet its 90% electricity access rate by year 2030, as well as increase renewable energy use to 30% by year 2030.
Location/Site	The Mambilla Hydroelectric Power Project is located in Sardauna LGA of Taraba State, in North-East of Nigeria, lying between longitude 10o 50ʹE and 11o 38ʹE and latitude 6o 22ʹN and 7o 18ʹN. The project is designed to take advantage of the potential offered by the topography of the Mambilla Plateau which presents a drop of 1,000m and by the flows of the Donga River. The Donga Catchment Area (CA) is approximately 20,000 km2 at its confluence with the Benue River. The Mambilla plateau consisting of an area of over 3500 square kilometers uplands, ranging in height between 1300 and 1900 meters above sea level. The location has an average rainfall of nearly 2000 mm per annum (highest in Nigeria) occurring within 8-month season. Thus, making the location an exceptional national treasure and invaluable resources for generation of sustainable, reliable, affordable and modern hydroelectric power for national development.
Image/Map Files	mambila_plateau.jpg mambila_plateau2.jpg
Existing or Planned Projects along the proposed project	The project does not serve an existing or planned infrastructure asset of another sector.
Please provide more details for your choice above	The project is related to power generation and transmission to benefit Nigeria and neighbouring countries of Niger, Togo, Benin and Chad
Technical Specifications of the Project	Hydroelectric Power with Solar Hybrid
Market Size	Based on 5.5 billion kWh/year output the project will supply 550kWh to 10 million people each year
Project Financial (in USD)	US$5.8 billion
Gender Procurement actions	A key action being worked upon is to streamline the Mambilla Hydroelectric Power Project (MHEPP) procurement process in favour of women owned SMEs. It is also planned that the Ministry will from time to time host suppliers briefing for women SMEs and publish clear procurement processes that will enable women Engineers to participate in procurement process of the MHEPP project hence FMP plan to limit the size of some key project areas to allow women owned SMEs to participate in contract process. The National Power Training Institute of Nigeria (NAPTIN) as a national institution responsible for training power sector professionals (engineers, technologist, technicians, artisans, crafts men/women etc) will be tasked with the responsibility of designing a robust curriculum on methodologies for increasing women participation in the MHEPP project. All contractors will be required to undertake this short course to create awareness and the know-how of engaging women in power projects. The Mambilla Hydroelectric Power Project (MHEPP) will provide on the job Training (OJT) for 1000 female students across the six (6) States of the North - East region (Adamawa, Bauchi, Borno, Gomde, Taraba and Yobe States) to promote gender mainstreaming in the energy sector. The MHEPP will also have a technical training centres and Medical centres for the trainees will be minimum of 30% female gender In order to encourage women owned businesses to participate in the MHEPP, a key criterion that will be enshrined into the contract bidding document will be such that create a level playing. Award of contract will be based on firms whose offer represent best overall value to the project rather than simply going by lowest cost. The Ministry of Power is also working on a national action plan for mainstreaming gender into energy access. One of the core focus is the development of a benchmarking tool for evaluating the degree to which suppliers demonstrate best practice that focuses on business development, marketing and supply chain that empowers women. The tool will be used for measuring, tracking and evaluating gender responsive procurement programmes in the power sector of Nigeria.
Last Milestone Known	S3A - Project Structuring

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