Flooding forces GRIDCo, ECG to shut down Mallam and Achimota substations

The Ghana Grid Company Limited (GRIDCo) and the Electricity Company of Ghana (ECG) have temporarily shut down the Mallam and Achimota Primary Substations following severe flooding caused by ongoing heavy rains in parts of the Greater Accra Region.

In a joint statement issued on Monday June 29, 2026, the two power sector institutions said the precautionary measure became necessary after floodwaters inundated critical electricity infrastructure, posing safety risks to personnel and threatening damage to equipment.

"The precautionary shutdown became necessary because the flooding has affected critical power infrastructure at a number of substations, posing significant risks to both electrical equipment and operational personnel," the statement said.

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According to GRIDCo and ECG, engineers are continuously monitoring the situation and conducting detailed assessments to determine the extent of the impact on the transmission and distribution network before power supply can be safely restored.

The two institutions also cautioned that power outages could extend to other flood-prone areas if conditions worsen.

"As the heavy rains and flooding persist, the public is advised that power supply may be temporarily interrupted in other affected areas, where necessary, as a precautionary measure to protect lives, property and critical electricity infrastructure," the statement added.

Residents have also been advised to remain vigilant and immediately report fallen electricity poles, exposed or fallen power lines, flooded electrical installations, and any other electricity-related hazards to the nearest ECG office or through the company's customer service channels.

GRIDCo and ECG apologised for the inconvenience caused by the temporary outages and assured affected customers that electricity supply would be restored as soon as weather conditions improve and it is safe to do so.

"Every effort will be made to restore power supply as soon as weather conditions improve and it is safe to do so," the statement said.

ANAS/MA

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