The final phase of an upgrade to the transmission link between Kumasi’s Ahodwo and Anwomaso substations is scheduled to begin on July 20, the Ministry of Energy and Green Transition has announced jointly with the Ghana Grid Company (GRIDCo) and the Electricity Company of Ghana (ECG).
The works cover the Kumasi-Anwomaso Transmission Line Upgrade, known as the K1-K2 Project, as well as the replacement of a transformer at the Kumasi (Ahodwo) Substation. The Ministry said the construction phase is expected to be completed within three months.
The project involves replacing the existing 19-kilometre, single-circuit transmission line between Anwomaso (K2) and Ahodwo (K1) with a double-circuit line. According to the Ministry, the existing line is rated at 364MVA, while the replacement line is rated at 2 × 488MVA, which it said would more than double transmission capacity between the substations.
The Ministry said the upgrade is intended to improve the reliability, resilience and efficiency of electricity supply in Kumasi and the wider Ashanti Region, while providing room for future residential, commercial and industrial demand.
As of July 16, the Ministry said about 90 per cent of foundation works and 67 per cent of tower assembly works had been completed. Outstanding activities include dismantling the existing line, erecting new towers and stringing new conductors.
Planned interruptions
The existing line will have to be de-energised during parts of the final construction work for safety reasons. Customers served through the Kumasi (K1) and Anwomaso (K2) substations may therefore experience temporary and localised interruptions, the announcement said.
GRIDCo and ECG are expected to issue advance notices before each planned outage. The Ministry said efforts would be made to restore supply before the evening peak-demand period.
Separately, GRIDCo will replace an existing 66MVA transformer at the Ahodwo substation with a 145MVA unit. The Ministry said the change would increase capacity, improve operational flexibility and reduce pressure on existing equipment.
Residents have been asked to avoid designated construction areas and follow safety instructions from project personnel during the work.
