The fire that tore through the Akosombo Substation was not an act of God or a security breach, it was a preventable engineering failure that exposed deep and systemic weaknesses in Ghana's power transmission infrastructure, and those weaknesses remain unaddressed.
The Africa Sustainable Energy Centre has responded to the findings of the official investigation committee into the Akosombo Substation fire, which concluded that the incident was caused by insulation failure linked to ageing infrastructure rather than any act of sabotage.
While ASEC has commended the committee for conducting a thorough investigation and welcomed the Ministry of Energy and Green Transition's commitment to implementing the resulting recommendations, the organisation has been direct in its assessment of what the findings reveal.
"The fire should have never escalated, this is a pure engineering and structural failure," ASEC stated in a press release signed by Executive Director Ing. Justice Ohene-Akoto on 11 June 2026.
The organisation argues that the incident, and the scale it reached, reflects not a single point of failure but a constellation of technical deficiencies that must be addressed systemically and urgently.
The Protection Coordination Problem
Among the most alarming technical findings highlighted by ASEC is a critical flaw in the substation's protection coordination system.
The investigation revealed that after the first transformer tripped at approximately 311 amps, a second transformer continued feeding the fault because its protection settings were configured to trip at a higher threshold.
In plain terms, the system that should have contained the fault instead allowed it to continue escalating.
ASEC describes this as a potential deficiency in protection coordination and Short Circuit Coordination Studies, a technical framework that ensures the closest protective device isolates a fault quickly and selectively, cutting off the fault before it can destroy equipment or spread.
The organisation is calling for a comprehensive review of protection philosophies, relay settings, and fault coordination studies across the entire national transmission network, stating unequivocally that "no transmission system should allow a fault to continue feeding unchecked due to inadequate protection coordination."
Fire Detection and Suppression Must Be Modernised
The speed with which the fire spread has also drawn ASEC's attention to the inadequacy of existing fire response mechanisms at critical grid facilities.
The organisation is recommending the installation of modern fire detection and automatic suppression systems across all major substations and transmission facilities, systems capable of detecting and suppressing a fire within seconds of ignition, thereby limiting both equipment damage and the service disruptions that ripple outward from such events.
ASEC also recommends mandatory periodic infrared thermographic scanning across all major substations, switchgear, transformers, and cable systems.
IR inspections can identify hotspots, abnormal heating, and insulation degradation long before they develop into the kind of catastrophic failure witnessed at Akosombo, making them one of the most cost-effective tools available for preventing a repeat of this incident.
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