Tema Power Interruptions: GRIDCo Announces Emergency Maintenance at Smelter II Substation on May 27

Tema power interruptions announced by GRIDCo as the Ghana Grid Company Limited prepares to undertake emergency maintenance works at the Smelter II Substation on Wednesday, May 27, 2026. The scheduled maintenance, set to run between 11:00 a.m. and 2:00 p.m., is expected to temporarily disrupt electricity supply to customers and residents in parts of Tema.

GRIDCo’s announcement, issued through its Corporate Communications Section on Monday, comes as part of ongoing efforts to improve power supply reliability and strengthen the country’s transmission network — a priority that has taken on added significance given the persistent challenges plaguing Ghana’s energy infrastructure.

What Is Causing the Tema Power Interruptions

According to GRIDCo, the Tema power interruptions are necessitated by emergency maintenance works at the Smelter II Substation, a critical node in the Tema electricity distribution network. The company stated that the works are essential to enhance the resilience of the transmission network and ensure a stable electricity supply to customers in the area.

The maintenance exercise will take place between 11:00 a.m. and 2:00 p.m. on Wednesday, May 27. During this three-hour window, customers and residents in parts of Tema are expected to experience temporary interruptions in their electricity supply. GRIDCo has assured the public that its engineers and technical teams will work diligently to complete the exercise within the shortest possible time.

The Tema power interruptions come at a time when the reliability of Ghana’s electricity supply remains a subject of national concern. Frequent outages and voltage fluctuations continue to affect households and businesses, making maintenance exercises like this one critical to preventing larger-scale system failures.

How the Tema Power Interruptions Will Affect Residents and Businesses

The impact of the Tema power interruptions is expected to be felt across parts of Tema, one of Ghana’s most industrialised cities and home to the Tema Industrial Park, the Tema Port, and numerous manufacturing and commercial enterprises. Even a three-hour disruption in electricity supply can have significant economic consequences for businesses that rely on continuous power.

GRIDCo expressed regret over the inconvenience the maintenance works may cause and appealed to the public for understanding and cooperation during the maintenance period. The company urged affected customers to take necessary precautions, including unplugging sensitive electronic equipment and making alternative arrangements for essential power needs during the outage window.

For residents, the Tema power interruptions serve as a reminder of the fragility of the electricity supply infrastructure and the importance of regular maintenance to prevent more extensive and prolonged outages. GRIDCo has encouraged customers to treat the temporary disruption as an investment in the long-term reliability of their power supply.

GRIDCo’s Broader Efforts to Address Ghana’s Power Supply Challenges

The Tema power interruptions are part of a broader pattern of maintenance and infrastructure upgrade works that GRIDCo has been undertaking across the country. The company has in recent months announced similar maintenance exercises in multiple regions, reflecting a systematic approach to addressing the technical deficits that have long compromised Ghana’s power transmission network.

Ghana’s electricity sector has faced a series of challenges in recent years, from fuel supply constraints to ageing infrastructure and transmission losses. GRIDCo, as the operator of the national transmission grid, plays a central role in ensuring that generated power reaches distribution companies and, ultimately, end consumers.

The emergency nature of the Tema power interruptions — as opposed to routine scheduled maintenance — suggests that the Smelter II Substation requires urgent attention. GRIDCo has not disclosed the specific technical issues necessitating the works but has indicated that they are essential to maintaining the operational integrity of the substation.

What Tema Residents Should Do During the Power Interruptions

GRIDCo has urged residents and businesses affected by the Tema power interruptions to take proactive steps to minimise inconvenience during the maintenance window. The company recommends that customers unplug sensitive electrical appliances to prevent damage from potential power surges when supply is restored.

Businesses with critical power needs are advised to ensure that backup generators and uninterruptible power supply systems are tested and ready before the scheduled outage begins. Residents are also encouraged to charge mobile phones and other essential devices ahead of time.

The Tema power interruptions are expected to last approximately three hours, with GRIDCo pledging to restore full power supply as soon as the maintenance works are completed. The company has assured the public that it will communicate any changes to the schedule promptly through its official channels.

Looking Beyond the Tema Power Interruptions to Ghana’s Energy Future

While the Tema power interruptions are temporary, they highlight the ongoing need for sustained investment in Ghana’s electricity transmission and distribution infrastructure. The country’s energy sector remains a critical enabler of economic growth, and the reliability of power supply directly affects industrial productivity, commercial activity, and quality of life.

GRIDCo’s commitment to regular and emergency maintenance reflects an understanding that infrastructure neglect carries far greater costs than planned disruptions. The Tema power interruptions, though inconvenient, represent a necessary step in ensuring that the city’s electricity network can continue to serve its growing population and industrial base.

As Ghana pursues its industrialisation agenda, the reliability of electricity supply will remain a key determinant of the country’s competitiveness. The maintenance works at Smelter II Substation, and the resulting Tema power interruptions, are a small but important part of the larger effort to build a resilient and efficient power transmission system for the nation’s future.

Source: MyJoyOnline