GRIDCo investigates Mallam Substation fire as power restoration continues
The Ghana Grid Company Limited (GRIDCo) has launched an investigation into a transformer fire at its Mallam Substation in Accra and initiated steps to replace the affected equipment.
The incident occurred at 2:36 a.m. on Wednesday, October 14, 2026, following a fault involving one of the transformers at the facility.
In a public notice issued from Tema, GRIDCo confirmed the incident and said it had disrupted electricity supply to parts of Accra served by the substation.
“The Ghana Grid Company LTD. (GRIDCo) wishes to inform the public that a fault occurred at its Mallam Substation at 2:36 a.m. on Wednesday, 14th October 2026, resulting in a fire outbreak on one of the transformers at the station,” the company stated.
The Ghana National Fire Service responded to the emergency and brought the fire under control.
GRIDCo said its engineers were investigating the cause of the incident, while arrangements were underway to replace the damaged transformer.
“GRIDCo’s engineers are investigating the cause of the fire, and process has been initiated to replace the affected transformer as soon as possible,” the statement said.
The transformer fire disrupted electricity supply to parts of Accra, leaving restoration work as a priority for the company.
GRIDCo confirmed that supply had already been restored to some affected areas, but said work was continuing to reconnect the remaining locations.
“Power supply has been restored to parts of the affected areas, while efforts continue to restore supply to the remaining areas as quickly as possible,” the company said.
GRIDCo did not disclose the specific cause of the fault, the extent of the damage to the transformer or the expected completion date for the replacement process.
The investigation is expected to establish what caused the fault that resulted in the fire.
The incident has drawn attention to the importance of maintaining critical electricity transmission infrastructure and responding quickly to faults that disrupt supply.
GRIDCo thanked customers and stakeholders for their understanding as its engineers work to address the situation.
“GRIDCo sincerely apologises for the inconvenience caused and thanks all affected customers and stakeholders for their patience and understanding,” the statement said.
The company has urged affected customers to remain patient while restoration work continues. Further updates on the cause of the fire and the replacement of the damaged transformer may clarify the steps required to return the substation to normal operation.
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