Briefing reporters during a visit to the power station in Dar es Salaam, Acting Senior Manager, System Control, Eng Abubakar Issa, said company experts were still working on the problem to identify the main source of the fault.
The official said that the 132KV socket-breaker at Ubungo Power Station that supplies power to Chalinze in the Coast Region and Tanga was broken and caused the power blackout across the country.
He, however, detailed that despite the problem they made several efforts to restore power countrywide and that by 8:00AM yesterday, electricity was available in all regions.
According to him, in Dar es Salaam power was restored at 11AM, though there were several areas in the metropolitan city which were yet to get electricity by yesterday noon.
The Manager for the Transmission Sub-Station, Eng Mosha Izahaki, said that the company was committed to making sure that its customers were provided with reliable power services.
He said that citizens should not fear as there was no sabotage in the company but instead the power blackout was due to the technical fault.
Izahaki said that maintenance for the broken socket-breaker was set to cost about 90 to 100 million shillings, to normalise the situation on Friday or Saturday this week.
For her part, acting Public Relations manager Leila Muhaji urged citizens to stay calm as there would be no more power blackouts in the future.