On March 28, 2013, a nationwide blackout occurred in Trinidad and Tobago, which was reportedly caused by low gas pressure around 12:37 am AST. The outage stemmed from two causes: a problem with the gas supply from Phoenix Park Gas Processors Ltd, which affected Trinidad, and a subsequent problem at the Cove power plant, which affected Tobago. T&TEC was able to restart the generators at Cove soon after, restoring power to the island from as early as 1 am. The final customer came back on at approximately 3 am. In Trinidad, T&TEC said the restoration started at approximately 4.45 am, as there was some delay in restarting the generators at the PowerGen plant in Point Lisas. Around 11 am, approximately 90% of customers in Trinidad were back on with their electricity supply.