Nigeria is Africa’s most populous country and one of its most under-supplied power markets: installed capacity far exceeds what the grid actually delivers, and a large share of the economy runs on self-generation. That gap — and the reforms trying to close it — is the story for infrastructure suppliers.

How is the sector organised?

Generation was privatised in 2013 into a set of generation companies (GenCos) alongside independent producers; the Transmission Company of Nigeria (TCN) remains state-owned; and eleven distribution companies (DisCos) serve regional franchises. The Nigerian Electricity Regulatory Commission (NERC) regulates, and the Nigerian Bulk Electricity Trading company sits between generators and distributors. The Electricity Act of 2023 allows states to establish their own markets and regulators, a decentralising shift now being implemented.

Why does grid supply lag installed capacity?

Gas supply constraints to thermal plants, transmission and distribution bottlenecks, liquidity problems along the value chain and repeated grid collapses mean delivered power is a fraction of nameplate capacity. Tariff reform — including cost-reflective tariffs for the best-served customer bands — is intended to restore financial viability. Read our grid section.

Where is investment happening?

Transmission rehabilitation and expansion, including programmes with international partners; distribution metering and network reinforcement; gas-fired and hydro generation; and, above all, distributed and off-grid solutions — solar mini-grids, commercial and industrial solar-plus-storage, and hybrid systems replacing diesel. The Rural Electrification Agency’s programmes and development-bank facilities have made Nigeria one of the world’s largest mini-grid markets. See our storage and renewables coverage.

What does the Electricity Act 2023 change?

It ends the federal monopoly on electricity regulation, allowing states to license generation, transmission and distribution within their borders, and encourages renewable integration and captive generation. In practice it opens new counterparties — state electricity markets and their utilities — for equipment and services.

What should suppliers know?

Public procurement runs through TCN, government agencies and development-bank projects with formal tender rules; the private market — DisCos, industrial customers, mini-grid developers — is large, fragmented and financed project by project. Currency access, payment security and local partnerships are central. Independent context: the World Bank and the African Development Bank.

Key projects and programmes to watch

• The Electricity Act 2023 and state electricity markets, which allow states to license generation, transmission and distribution within their borders — the biggest structural change since privatisation.
• Transmission expansion by TCN and the Presidential Power Initiative with Siemens Energy, which targets grid capacity, substations and transformers.
• Distribution loss reduction and metering under the National Mass Metering Programme and DisCo performance frameworks — see loss-reduction programmes and tariff reform.
• Rural and distributed energy, including the Rural Electrification Agency’s mini-grid programmes with World Bank finance and the growth of commercial and industrial solar as an alternative to diesel.
• Gas-to-power and hydro, including Zungeru hydro and continued gas plant development tied to domestic supply.
• Regional trade through the West African Power Pool.

How procurement, standards and financing work

Nigeria’s privatised structure means many buyers: TCN (state-owned) procures transmission equipment through public tenders, often with development-bank or export-credit finance; the eleven distribution companies buy meters, transformers and network equipment commercially, subject to NERC regulation and local-content preferences for meters; generation companies and IPPs procure privately. Standards follow IEC and Nigerian Industrial Standards, with the Standards Organisation of Nigeria certifying imports. Payment security is the central commercial issue: the market has long carried liquidity shortfalls, and suppliers structure deals around guarantees, escrow or development-bank cover.

Risks and constraints

Grid collapses, gas supply constraints, foreign-exchange volatility and tariff-subsidy gaps make Nigeria a demanding market. Yet it is also one of the continent’s largest, with acute unmet demand, a fast-growing distributed and mini-grid sector, and a reform programme that opens state-level markets and metering at scale. Suppliers succeed by pairing with local partners, structuring payment security and focusing on segments with clear funding — development-bank programmes, metering, C&I solar and mini-grids. Read alongside our Africa energy infrastructure overview and guides to Ghana and Senegal and Côte d’Ivoire.

Key facts at a glance

• Structure: privatised GenCos and DisCos; state-owned TCN; NERC regulator; bulk trader
• Reform: Electricity Act 2023 decentralises regulation to states; tariff reform
• Constraints: gas supply, transmission and distribution capacity, liquidity
• Growth: mini-grids, C&I solar-plus-storage, metering, transmission rehabilitation

Sources and further reading

• Transmission Company of Nigeria — transmission projects
• Nigerian Electricity Regulatory Commission — regulation, tariffs and metering rules
• Rural Electrification Agency — mini-grid and off-grid programmes
• World Bank — Nigeria — projects and analysis
• African Development Bank — Nigeria — energy lending
• West African Power Pool — regional trade

This article was researched and written by the EnergiTech Media editorial team and last reviewed in August 2026. We update country and sector guides as tenders, plans and regulations change. Spotted something out of date? Email support@energitechmedia.com.

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