Ministry of Power and Renewable Energy says that the islandwide power failure was caused by a transformer malfunction at the Biyagama Grid substation, which connects the lines supplying power from Mahaweli Power Station to Colombo.
Chairman of the CEB Anura Wijepala said that an investigation is in place to confirm if the islandwide power failure was in fact a technical failure or result of a move to sabotage its service.
Mr. Wijepala said he intends to hand in his resignation today, after taking responsibility for the power failures over the past six months.
This is the 2nd island wide power failure in the last 17 days. The first lasted approximately 3 hours on the 25th February due to a technical fault in the high voltage cables transmitting power from Lakshapana Power Station to Kolonnawa via Polpitiya Power Station caused the power outage.
The power failure occurred after 2.00pm, which in turn resulted in operation malfunctioning in Canyon, Lakshapana, Polpitiya, Wimala-surendra, Upper Kotmale and Kotmale hydro power stations.
Minister of Power and renewable energy Ranjith Siyabalapitiya has summoned all relevant parties to the Ministry to commence an immediate investigation.