Sabah Electricity
Encyclopedia
Sabah Electricity Sdn. Bhd. (SESB) is an electrical company that generates, transmits and distributes electricity mainly in Sabah
Sabah
Sabah is one of 13 member states of Malaysia. It is located on the northern portion of the island of Borneo. It is the second largest state in the country after Sarawak, which it borders on its southwest. It also shares a border with the province of East Kalimantan of Indonesia in the south...

 and Federal Territory
Federal Territory
The Federal Territories in Malaysia comprise three territories: Kuala Lumpur, Putrajaya and Labuan, governed directly by the federal government of Malaysia. Kuala Lumpur is the national capital of Malaysia, Putrajaya is the administrative capital, and Labuan is an offshore international financial...

 of Labuan
Labuan
Labuan is a federal territory in East Malaysia. It is an island off the coast of the state of Sabah. Labuan's capital is Victoria and is best known as an offshore financial centre offering international financial and business services via Labuan IBFC since 1990 as well as being an offshore support...

. 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%).

History

Electricity started in Sabah
Sabah
Sabah is one of 13 member states of Malaysia. It is located on the northern portion of the island of Borneo. It is the second largest state in the country after Sarawak, which it borders on its southwest. It also shares a border with the province of East Kalimantan of Indonesia in the south...

 as early as 1910 supplied by 3 separate organisations. In 1957 these three organisations combined to form North Borneo Electricity Board. When North Borneo
North Borneo
North Borneo was a British protectorate under the sovereign North Borneo Chartered Company from 1882 to 1946. After the war it became a crown colony of Great Britain from 1946 to 1963, known in this time as British North Borneo. It is located on the northeastern end of the island of Borneo. It is...

 joined Malaysia in 1963 and changed its name to Sabah, this entity was renamed Sabah Electricity Board. On 1st of September 1998 Sabah Electricity Board was privatised and became Sabah Electricity Sdn. Bhd.

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
Independent Power Producer
An Independent Power Producer is an entity, which is not a public utility, but which owns facilities to generate electric power for sale to utilities and end users...

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

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:

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

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:
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
    Sector Consumption (GWh) Percentage
    Domestic 1,167.11 31%
    Commercial 1,440.55 39%
    Industrial 1,072.75 29%
    Public lighting 46.59% 1%

See also

  • National Grid, Malaysia
    National Grid, Malaysia
    National Grid, Malaysia is the high-voltage electric power transmission network in Peninsular Malaysia. It is operated and owned by Tenaga Nasional Berhad by its Transmission Division...

  • Tenaga Nasional
    Tenaga Nasional
    Tenaga Nasional Berhad is the largest Electric utility company in Malaysia and also the largest power company in Southeast Asia with MYR 69.8 billion worth of assets. It serves over seven million customers throughout Peninsular Malaysia and also the eastern state of Sabah through Sabah Electricity...

  • Sarawak Electricity Supply Corporation
    Sarawak Electricity Supply Corporation
    Syarikat SESCO Berhad is the privatized organization responsible for the generation, transmission and distribution of electricity for the Sarawak state in Malaysia. It was privatized on 1 July 2005.SESCo provides electricity to about 382 000 customers...

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