# Ghana grid outage, upgrades; Sierra Leone faults persist > Live situation record from CLSTR: https://clstr.news/situations/ghana-utility-maintenance-disruptions > Updated: 2026-08-02T11:17:32.000Z. Sources: 14. Developments: 8. The three‑month upgrade of the Kumasi‑Anwomaso transmission line, which began on 20 July, has seen 56 of the 60 towers installed and GRIDCo replace transformers at the Ahodwo sub‑station to support a new 1 GW capacity. Energy Minister Dr John Abdulai Jinapor warned that further delays could jeopardise grid stability. On 29 July, a disturbance on the national interconnected transmission system caused several generating plants to trip, triggering a simultaneous nationwide outage. GRIDCo activated its restoration protocol, re‑energising the grid, apologising to customers and launching a technical investigation. The outage affected electricity delivery to consumers and to 31 bulk customers served by 11 wholesale suppliers, including the Volta River Authority. The Electricity Company of Ghana (ECG) has continued to schedule daytime outages across Accra, Ashanti, Tema, Central, Eastern and other regions to accommodate emergency maintenance and system upgrades, with programmes extending through early August. On 2 August ECG announced a week‑long series of scheduled outages starting 3 August, running from 9 a.m. to 5 p.m. in parts of Accra (East), the Ashanti Region, Tema, the Volta Region and the Eastern Region. The work is described as urgent repairs and upgrades to improve reliability, though it will impact many workers and businesses. Sierra Leone’s Electricity Distribution and Supply Authority still reports faults in the Western Area linked to vandalism, transformer failures and heavy rain. Eskom’s recent 14‑hour Limpopo interruption remains unrelated. ## Claims - A power system disturbance occurred on Ghana's National Interconnected Transmission System at approximately 03:11 a.m. on 29 July 2026. (corroborated by 4 sources) - The disturbance caused simultaneous tripping of some generating plants, leading to a nationwide power outage. (corroborated by 4 sources) - GRIDCo activated its established system restoration procedures and began restoration efforts. (corroborated by 4 sources) - GRIDCo engineers and system operators are working with power‑sector stakeholders to restore power as quickly and safely as possible. (corroborated by 4 sources) - GRIDCo launched a comprehensive technical investigation to determine the cause of the disturbance. (corroborated by 4 sources) - GRIDCo apologized to the public for the inconvenience and asked for patience. (corroborated by 4 sources) - The Electricity Company of Ghana announced scheduled power outages in parts of Accra (Accra East), Ashanti Region, Tema, Volta Region and Eastern Region starting on 3 August. (corroborated by 2 sources) - The outages will run for seven days. (corroborated by 2 sources) - The outages are planned for 9:00 a.m. to 5:00 p.m. in most affected areas. (corroborated by 2 sources) - The outages are due to emergency maintenance works and system upgrades to fix faults and improve electricity reliability. (corroborated by 2 sources) - The maintenance is necessary to enable engineers to carry out urgent repairs and system upgrades. (corroborated by 2 sources) - The scheduled maintenance is expected to affect many workers and businesses that depend heavily on electricity during normal working hours. (corroborated by 2 sources) ## Timeline ### 2026-08-02: Ghana's Electricity Company Schedules Week-Long Power Outages Starting Aug 3 Ghana's Electricity Company of Ghana will cut power in Accra, Ashanti, Tema, Volta and Eastern regions for seven days from Aug 3, 9 a.m.–5 p.m., to perform emergency maintenance and system upgrades. 3 sources. https://clstr.news/cluster/ghanas-electricity-company-schedules-week-long-power-outages-starting-aug-3 ### 2026-07-29: Ghana's GRIDCo Restores Power After Nationwide Outage A July 29, 2026 disturbance on Ghana’s transmission system caused a nationwide blackout; GRIDCo launched restoration procedures, a technical investigation, and apologized to the public. 8 sources. https://clstr.news/cluster/ghanas-gridco-restores-power-after-nationwide-outage ### 2026-07-26: Ghana Schedules Power Outages in Accra, Ashanti, Central Regions and Kumasi Ghana's ECG plans seven‑day daytime power cuts in Accra, Ashanti, Central and Tema from July 26, while Kumasi faces up to four months of intermittent outages for GRIDCo transmission upgrades funded by a recent 3 sources. https://clstr.news/cluster/ghana-schedules-power-outages-in-accra-ashanti-central-regions-and-kumasi ### 2026-07-21: Ghana and Sierra Leone schedule temporary power outages amid maintenance and faults Ghana’s ECG will cut power for maintenance on July 22 across five regions, while Sierra Leone’s EDSA faces network faults and weather‑related delays disrupting supply in the Western Area. 4 sources. https://clstr.news/cluster/ghana-and-sierra-leone-schedule-temporary-power-outages-amid-maintenance-and-faults ### 2026-07-18: Ghana and South Africa plan electricity outages for maintenance Ghana's ECG will cut power in parts of Accra, Ashanti, Central and Tema from July 20‑23, while South Africa's Eskom schedules a 14‑hour outage in Limpopo on July 23 for maintenance. 3 sources. https://clstr.news/cluster/ghana-and-south-africa-plan-electricity-outages-for-maintenance ### 2026-07-17: Kumasi to endure three‑month power outages as GRIDCo upgrades transmission line GRIDCo and ECG start a three‑month upgrade of Kumasi’s transmission line on 20 July, raising capacity to 1,000 MW and causing planned daytime outages with evening power restoration. 3 sources. https://clstr.news/cluster/kumasi-to-endure-threemonth-power-outages-as-gridco-upgrades-transmission-line ### 2026-07-07: Ghana Water to suspend Dodowa Booster Station for 24‑hour maintenance on July 9 Ghana Water will shut down the Dodowa Booster Station for 24 hours on 9 July 2026 for maintenance, affecting 13 communities in Greater Accra; residents urged to store water. 4 sources. https://clstr.news/cluster/ghana-water-to-suspend-dodowa-booster-station-service-for-24-hours-on-july-9 ### 2026-06-28: Ghana power outages scheduled as maintenance and floods disrupt supply Ghana's ECG schedules daytime outages June 29‑July 1 for maintenance in Accra, Central and Ashanti regions, while flood‑hit Mallam and Achimota substations are temporarily shut down for safety. 4 sources. https://clstr.news/cluster/ghana-power-outages-scheduled-as-maintenance-and-floods-disrupt-supply --- Cite as: Ghana grid outage, upgrades; Sierra Leone faults persist. CLSTR, https://clstr.news/situations/ghana-utility-maintenance-disruptions