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About Us
The Grid System Operator (GSO) is primarily responsible for the day-to-day real time operation and the management of the Peninsular grid system together with the short and medium term planning.
Grid Code
The Grid Code is a regulatory instrument used to coordinate various electricity supply activities of the electricity producer, operator, distributor and the consumer.
• [26 Jul 2017] GSO & SB Governance Reform Workshop
Strategising key activities in becoming an independent entity.
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Visitor Count : 5760
System Demand Profile for Peninsular Malaysia
Existing Constraints
TypeConstrained CctVoltageMax Overload(%)Generation LimitGeneration ClusterOther
Contingency275kV ATWR-PRMS-SGRI-BGJH-TPAH-BTRK (2x683 MVA)275150Limit based on max secured Perak-Central Area transferNorthernLimit to the max secured Perak-Central Area transfer to cater for thermal overload and system stability under n-2 contingency of 500kV BTRK-JMJG & BTRK-ATWR
Basecase and Contingency132kV KSTR-ASTR & 132kV KSTR-MGON (1x77 MVA)132100PLPS Min = 200NorthernMin 1 PLPS GT on-bus required for thermal loading control for 132kV KSTR-ASTR & 132kV KSTR-MGON lines and voltage support under n-2 contingency of 275kV BDNG-KSTR lines
Basecase275kV and 132kV cables into Penang Island132100GLGR Min = 70GLGRMin 1 GLGR GT on-bus required for thermal loading control and voltage support in Penang Island
Constraints Due to Outage (for the next 7 days)
DurationTypeConstrained CctVoltageMax Overload(%)Generation LimitGeneration ClusterOther
System Status Alert
Normal Operation
Current System Demand
Monday, 19 Nov 2018
17064 MW at 15:00
Highest Demand Recorded
Wednesday, 15 Aug 2018
18338 MW
Highest Energy Recorded
Wednesday, 15 Aug 2018
388524 MWh
Regional Generation Availability
Monday, 19 Nov 2018