• Fully redundant master system in SDC to support SCADA facilities for all EHV, 33/11kV and major 11kV substations and power stations. This master system is inter-linked to Kuching, Sibu, Bintulu and Miri RDCs master systems.

• Four master systems in Kuching, Sibu, Bintulu and Miri RDCs to support SCADA facilities for localised EHV, 33/11kV and major 11kV substations and power stations. 

• One mini master system in Lawas to support SCADA facilities for localised 11kV substations and power stations.

• An Energy Management System with Automatic Generation Control for power generation optimization. 

• Power Network Applications including contingency analysis and optimum load flow to support realtime analytical work for power network operation. 

• An Operation Training Simulator for realistic operation hands-on training.

• More than 100 RTUs are installed in EHV, 33/11kV and major 11kV substations and power stations, with a total point counts exceeding 30,000 points including 5,000 supervisory control points.

• Three substation control systems in Miri area.

• The fibre optic network covers all the Grid connected Regions. SDH channels are operating at STM4 (622 Mbps) and STM1 (155Mbps) level, linking all Despatch Centres, major Power Stations, EHV Substations and Regional Offices. PDH channels are operating at 2 Mbps, linking most of the 33KV substations and regional power stations.
  

• The Micro-Wave Radio link was set up between Wisma Sesco and Biawak 132 KV substation. The link forms part of the fibre optic network.
  

• The Power Line Carrier (PLC) network was set up along the EHV Transmission Lines. All the EHV Substations are linked by PLC channels. The PLC channels are working on 4 kHz baseband which can provide analogue speech and low speed data channel (up to 9600bps).
  

• The pilot cable channels can provide the same 4 kHz baseband as PLC channels but with limited distance (about 20 km).
  

• Private Automatic Exchange (PAX) for SESCO internal telephone network  which is used for operations purposes. eg. Despatch Centres, power stations, regional offices, substations, offices for operations personnel.
  

• Public Automatic Branch Exchange (PABX): All PABXs have been linked up via 2 Mbps channels to form a network. The extensions are installed in regional offices for administrative purposes.
  

• Security surveillance System has been sat up at Kuching Regional Office. The centre has been monitoring intruder alarms for EHV Substations in Kuching region and CCTV at customer service section at Kuching Regional Office. The system will be extended to other regions in phases.
  

• Data Communication Network (WAN/LAN) has been setup to link SESCO offices for IS application
  

• Network channel usage support are provided for other applications:

• SCADA System

• EHV and 33kV line current differential protection

• EHV distance protection.

• Communication channels from 64kbps to 2 Mbps are also available for other applications if required.