Access to Energy Initiatives

Access to Energy

One of the world’s most critical development challenges is addressing the lack of access to clean, reliable and affordable energy services for billions of people. Improving access to affordable and sustainable energy services is prominent on the international agenda and absolutely central to the broader development efforts to reduce poverty, improve education, health, gender equality and environmental sustainability.

NAOC contributes to the solution of the problem of access to energy in Nigeria through the following activities:

  • Supply of electricity through the Independent Power Plant to the Power Holding Company of Nigeria (completed by NAOC and inaugurated in 2005, installed capacity 480 MW, serving around 10 million customers);
  • Supply of gas to the power station of the Rivers State Government (installed capacity 150 MW, people served around 1 million customers);
  • Supply of electricity to the communities through the construction of networks connected to the NAOC industrial systems (capacity 26.5 MW, 28 beneficiary communities, about 200,000 people served);
  • Supply of electricity to the communities through off-grid system (6.5 MW installed, 34 beneficiary communities, about 65,000 people served).


  • Independent Power ProjectIndependent Power Project
  • Industrial systems Industrial systems
  • Off-Grid Power Generation Off-Grid Power Generation

Independent Power ProjectIn 2005, NAOC and its partners (Nigerian National Petroleum Company and Conoco-Phillips), inaugurated a combined cycle power plant in Okpai with a 480 MW capacity. From 2006 to 2013, the plant used 4.6 billion SCM of gas. In 2013 alone, via the Okpai power plant, NAOC contributed to resolving the problem of energy access in the Country through the supply of energy to the Power Holding Company of Nigeria (PHCN), for a total of 2.841 million MWh, using 550 MMSCM of gas (associated and non associated), equal to about 15% of annual national consumption.
The Okpai Power Plant uses combined cycle technology, minimizing nitrogen oxide emissions per kWh produced. The sustainability of electricity and steam production is guaranteed by the natural gas-combined cycle cogeneration, which represents the best available technology for thermal-electric production. In fact, the technology and the fuel used allows the highest efficiency to be attained for electric power generation from fossil resources (up to 12 % greater than that of the latest coal plants), reducing the emission of pollutants for every kWh produced.

Independent Power ProjectProject Description
he Okpai Plant, located near Kwale, in Delta State, covers an area of 300,000m2 subject to seasonal flooding from the nearby Niger River and required a sand filling of 1,600,000m3. The Project was executed on a fast track schedule and the first unit entered in commercial operation just 20 months after the Final Investment Decision was taken.
The Project mainly consists of important infrastructures in the location surrounding area. A 480 MW Integrated Combined Cycle Power Plant composed of 2 Gas Turbine Generation Sets of 165 MW each and a Condensate-Type Steam Turbine of 150MW; 14-Km, 18‘ Fuel Gas pipeline from NAOC Kwale Gas Plant to the Okpai IPP site; Substations and Over Head Transmission facilities. The Combined Cycle is a combination of two technological cycles: by air and natural gas (Open Cycle), efficiency = 34.28% and by water / steam (Water Steam cycle), fueled by the exhaust gas of Open cycle, boosting the efficiency to 55.03%.

Independent Power Project The Combined Cycle design is finalized at the production of electric power with high efficiency and minimum environmental impact.
Along with the Power Generation Complex, NAOC JV built 55 km of 330KV Overhead Transmission Line and 2 Substations (Okpai IPP & Onitsha Sub Station).
The double circuit system Over Head Transmission Line includes 130 towers, ranging from 80 m to 110 m in height and is capable of carrying the load for IPP Phase 1 and future expansion (IPP Phase 2).

NAOC supplies electricity to communities through the construction of networks connected to its industrial systems. This activity involves construction of energy infrastructure to supply the communities of Bayelsa, Imo and Rivers States, maximizing the benefits generated from the presence of the industrial activities. The electricity is supplied to the communities by connection to NAOC structures present in the swamp area– including the Ogboinbiri and Obama supply stations, the Brass terminal, Tebidaba (project underway), as well as,  the Obiafu-Obrikom (Ob-Ob) gas power plant, the Ebocha oil plant, the Kwale gas plant in the land area. Thanks to these operations, today the energy absorbed by the 28 communities connected to NAOC industrial plants is 26.5 MW (for an estimated total of 200,000 people).
In 2011, operations were performed at 7 plants with the objective of supplying energy to 16 communities. In particular, among the completed projects, there is the installation of 10 transformers in collaboration with the Rivers State government in the towns of Aggah, Mgbede, Obrikom and Omoku; and completion of the electricity supply to the community of Oruama.
In addition, plans are nearing completion for the Okpai community electrification project. This project is designed to provide electricity to five (5) Okpai communities: Okpai-Oluchi, Umuagulu, Obodoyibo, Obeze and Ashaka in Ndokwa East LGA of Delta State. It is a multi-million dollar Social Investment project by NAOC, the operators of the Okpai IPP.
The project comprises production, transmission and distribution of electricity to communities and villages around the Okpai area and  for this, there is a dedicated Power Island consisting of a 6/33 kV transformer with a capacity of 4 MVA.

NAOC also supplies energy to the local communities by constructing special off-grid systems to integrate the connections to the network built. From 1998 to date, NAOC has supplied generators to 34 communities in the area, corresponding to an estimated population of 65,000, with a total installed capacity of 6.5 MW. The operations are now underway: in the last two years, electricity was supplied to Krokrosei and Egbemo-Angalabri for a total of 292 KW and 400KW installed respectively.
For the future, the company is embarking on a gradual plan to reduce community dependency on generators and integrate as many communities as feasible to the national grid by supporting local institutions with the necessary infrastructure to achieve this. A notable example is the Ahoada-West electrification project which serves as a pilot to connect several communities in the Local Government Area to the PHCN grid.

Last updated on 17/03/14