Three Nigerian Power Plants Record Zero Output as Grid Instability Persists

Meta Description: Three Nigerian power plants generated no electricity in September 2026 as grid instability continued, raising concerns for businesses and the country’s power supply.

At least three power plants in Nigeria generated no electricity in September 2026 as the country’s national grid continued to experience frequency and voltage fluctuations.

The affected plants — Alaoji 1, Ibom Power 1 and Rivers 1 — recorded zero average hourly generation and a load factor of zero per cent, according to the latest operational data released by the Nigerian Electricity Regulatory Commission (NERC).

The figures were reported by Punch Newspapers on October 13, 2026, highlighting the ongoing challenges facing Nigeria’s electricity sector despite an increase in available generation capacity during the month.

The development raises concerns for businesses and households that depend on reliable electricity for daily activities.

Electricity Generation Falls Despite Higher Available Capacity

NERC’s operational factsheet showed that Nigeria’s national grid had an average available generation capacity of 5,038 megawatts (MW) in September, while average hourly electricity generation stood at 4,089MW.

This represented a system-wide load factor of 81 per cent.

Compared with August 2026, available generation capacity increased by 5.89 per cent. However, average hourly generation declined by 0.30 per cent, while the system-wide load factor fell by 5.04 per cent.

The figures show that an increase in available capacity did not translate into higher electricity generation.

Several factors can affect how much electricity reaches the grid, including plant availability, gas supply, maintenance requirements and transmission constraints.

Grid Frequency and Voltage Remain Outside Prescribed Limits

The NERC report also highlighted continued instability in the national grid.

The average lower frequency fell to 49.43 hertz (Hz), below the prescribed minimum of 49.75Hz. Meanwhile, the average upper frequency reached 50.69Hz, exceeding the maximum operating limit of 50.25Hz.

Voltage levels also moved outside prescribed limits during the month.

The average lower voltage dropped to 304.90 kilovolts (kV), below the minimum limit of 313.50kV, while the average upper voltage reached 350.28kV, above the maximum limit of 346.50kV.

These deviations indicate persistent challenges in maintaining stable electricity supply across the national grid.

Grid instability can disrupt electricity delivery and increase the risk of interruptions for consumers.

Some Power Plants Operate Below Available Capacity

While three plants recorded zero output, other facilities generated electricity at varying levels.

Kainji 1 recorded a load factor of 98 per cent, generating an average of 341MW from 347MW of available capacity.

Egbin 1 and Afam 2 each recorded a load factor of 94 per cent, while Ihovbor 2 achieved 91 per cent.

Zungeru 1 generated 358MW from an available capacity of 587MW, representing a load factor of 61 per cent.

Other plants recorded much lower output. Afam 1 generated an average of 0.72MW from 1.33MW of available capacity, while Geregu 2 produced 1MW from 2MW available.

The differences highlight uneven performance across Nigeria’s power generation fleet.

Nigeria’s Electricity Supply Gap Remains Significant

Nigeria has an installed electricity generation capacity of approximately 13,000MW, but actual generation typically remains between 4,000MW and 5,000MW.

Installed capacity refers to the maximum electricity a power plant is designed to produce under appropriate conditions. Available capacity represents the amount it can supply under prevailing operating conditions.

For example, Egbin Power Plant has an installed capacity of 1,320MW but declared only 429MW of available capacity in September, generating an average of 402MW.

This gap illustrates why installed capacity figures alone do not show how much electricity consumers can expect to receive.

Improving power supply requires attention to generation, fuel availability, transmission infrastructure and the stability of the national grid.

What Does This Mean for Nigerian Businesses?

Unreliable electricity remains a major operating challenge for businesses across Nigeria. The latest figures highlight several potential implications.

1. Higher operating costs

Businesses that depend on generators or alternative energy sources may face additional expenses for fuel, equipment maintenance and repairs.

2. Reduced productivity

Power interruptions can slow production, disrupt services and affect the ability of businesses to meet customer orders on time.

3. Pressure on small businesses

Small businesses, including retailers, salons, restaurants and workshops, may find it difficult to absorb the cost of alternative electricity without increasing prices.

4. Investment in alternative energy

Persistent grid challenges may encourage businesses to consider solar power, battery storage and other backup systems to reduce dependence on the national grid.

5. Impact on economic growth

Unreliable electricity can increase the cost of doing business, limit expansion and reduce the competitiveness of Nigerian companies.

For business owners, improving energy efficiency and assessing the cost of alternative power sources may help reduce exposure to electricity interruptions.

Conclusion

The zero output recorded by three Nigerian power plants in September highlights the continuing challenges facing the country’s electricity sector.

Although available generation capacity increased compared with August, average electricity generation declined, while frequency and voltage deviations persisted.

For businesses and households, reliable electricity remains essential for productivity, service delivery and economic activity.

Improving generation availability, strengthening grid infrastructure and addressing operational constraints will be important to delivering a more dependable power supply across Nigeria.

Source: Punch Newspapers, citing the Nigerian Electricity Regulatory Commission’s operational performance data for September 2026.