Sabah Electricity

Sabah Electricity Sdn. Bhd. (SESB) is a Sabah electrical company that generates, transmits and distributes electricity mainly in the state of Sabah and the Federal Territory of Labuan. It supplies electrical power to 413,983 customers distributed over a wide area of 74,000 km2. 82.8% of the customers are domestic customers consuming only 28.8% of the power generated. This company employs more than 2,300 employees and the main stakeholders of this company are Tenaga Nasional Berhad (TNB) (80%) and Sabah State Government (20%).

Sabah Electricity Sdn. Bhd.
Government-linked company
IndustryEnergy
PredecessorSabah Electricity Board (SEB)
Founded1 September 1998
Headquarters
Kota Kinabalu
,
Malaysia
Area served
State of Sabah and Federal Territory of Labuan
Key people
Ir. Abdul Nassar Bin Abdul Wahid , Managing Director
ServicesElectric generation, transmission, and distribution
Number of employees
2,600
ParentTenaga Nasional Berhad (80 %), Sabah State Government (20 %)
Websitewww.sesb.com.my

History

Electricity started in Sabah as early as 1910 supplied by 3 separate organisations. In 1957 these three organisations combined to form North Borneo Electricity Board. Upon the formation of Malaysia in 1963, it was renamed Sabah Electricity Board. On 1 September 1998, Sabah Electricity Board was privatised and became Sabah Electricity Sdn. Bhd.[1]

Generation capacity

The total generation capacity of SESB is 866.4 MW, 50.3% of the total units generated are purchased from the independent power producers (IPP).

The SESB installed capacity (excluding IPP) of the Sabah Grid which supplies electricity for major towns from Federal Territory Labuan to Tawau is 430.9 MW and the maximum demand is 760 MW (as of Jun 2010).

The East Coast Grid 132kV Transmission Line connecting the major towns in the East Coast has an installed capacity of 333.02MW and the maximum demand is 203.3MW.

The forecast demand growth of electricity is in a region of 7.7% per annum up to the year 2010 and the electricity demand is expected to reach 1,500 MW by the year 2020. To support the growing demand, various generation, transmission and distribution projects will be implemented.

A fully integrated grid connecting the West Coast Grid to the East Coast Grid was completed on 28 July 2007, and about 90% of the customers are now connected to this integrated grid.

Power generation plants

The summary of the list of power plants as follows:[2]

  • Number of Station: 37 (including 12 IPP excluding BELB stations)
  • Power generated for FY 2010 up to July 2010: 1,279.6 GWh (SESB) & 3,075.8 GWh (IPP)

SESB-owned power stations

Major power stations
Name and location Station type Engine configuration Capacity
SJ Patau-Patau Thermal 2 x 32MW, 1 x 33MW, 1 x 15 MW 99.0 MW
SJ Hydro Tenom-Pangi Hydroelectric 3 x 22 MW 66.0 MW
SJ Melawa Thermal 3 x 8 MW, 1 x 20 MW 31.4 MW
SJ Tawau Thermal 4 x 8 MW, 1 x 12 MW, 1 x 20 MW 40.0 MW
SJ Sandakan Thermal 2 x 8.5 MW, 2 x 14 MW, 2 x 19 MW 72.0 MW

Installed capacity by plant type
  • DG Diesel (Major) - 21%
  • DG Diesel (Minor) - 26%
  • DG Diesel (Rural) - 1%
  • GT Diesel - 17%
  • GT Gas - 18%
  • Hydro - 12%
  • Mini Hydro - 2%
  • Steam Turbine - 3%

IPP-owned stations
  • ARL Tenaga - 7%
  • Biomass (TSH) - 2%
  • Kadamaian, M. Hydro - <1%
  • Kinabio - 2%
  • Powertron - 28%
  • Powertron II - 20%
  • SBPC - 15%
  • Seguntur - 2%
  • Serudong Power - 5%
  • SPC Energy - 5%
  • Stratavest - 9%
  • Sutra Harbour - 5%

Overall power generation capacity
  • IPP - 70%
  • SESB - Diesel - 11%
  • SESB - Gas - 9%
  • SESB - Hydro - 10%

Transmission lines

The interconnected system comprises West Coast Power grid and East Coast Power Grid. The transmission circuit length (in circuit-kilometres) as in December 2007:[3]

Overhead lines
Capacity Length (Circuit-km)
275 kV 492.00
123 kV 860.86
132 kV (EC) 659.14
132 kV (WC) 100.34

Underground cable
Capacity Length (Circuit-km)
132 kV 37.90
66 kV 22.16

Submarine cable
Capacity Length (Circuit-km)
132 kV 29.00

Main intake substation
Capacity Number of intake substation
275 kV 2
123 kV 15
132 kV 9
66 kV 7

Power distribution

Distribution system capacity as in August 2009:[4]

Voltage Line length (km) Number of transformers
11 kV 7,421.7 5588
22 kV 260.0 119
33 kV 772.9 50

Electrical consumption
  • Number of customers as in July 2010: 432,390 customers[5]
Sector Consumption (GWh) Percentage
Domestic 1,167.11 31%
Commercial 1,440.55 39%
Industrial 1,072.75 29%
Public lighting 46.59 1%
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See also

References
  1. "Corporate Profile - Brief History". Sabah Electricity Sdn. Bhd. Retrieved 13 March 2011.
  2. "Corporate Profile - Generation". Sabah Electricity Sdn. Bhd. Retrieved 13 March 2011.
  3. "Corporate Profile - Transmission Lines". Sabah Electricity Sdn. Bhd. Retrieved 13 March 2011.
  4. "Corporate Profile - Power Distribution". Sabah Electricity Sdn. Bhd. Retrieved 13 March 2011.
  5. "Corporate Profile - Electrical Consumption". Sabah Electricity Sdn. Bhd. Retrieved 13 March 2011.
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