TCCL to supply a second lot of IEC61850 Substation Automation to MEA substations, Metropolitant Electricity Authority of Thailand, for Mai-Ad and Pathumwan Substation. the SA system will be a full scheme PACiS/DS Agile ALSTOM latest IEC61850 control system. It would comply to MEA's most strengthen requirement of "Substation Automation System based on IEC61850 standard". the sytem due to be delivered October 2015 and commsionign end of 2015 latest.