LAWATAN
JABATAN KERJA RAYA (JKR)
KE TAPAK PROJEK SAMBUNGTARA TALIAN ATAS
PULAU PINANG
06 JUNE 2024
The new 275kV injection into Penang Island will take over the function of Gelugor Power Station where the scope
includes :
a) Construction of monopole towers on the sea for two circuits of 275kV Overhead Lines (1000 MVA each) from
PMU New Prai 275kV – PMU The Light 275kV
b) Establishment of PMU The Light 275/132kV GIS (with 3x240MVA transformers)
c) 2x275kV New Prai GIS Ext
d) Laying of 3 new circuits of 132kV underground cables (180MVA each) from PMU The Light – to PMU Gelugor
e) 3x132kV Gelugor GIS Ext
EXISTING 275KV & 132KV SUPPLY TO PENANG ISLAND
The demand for electricity in Penang island is presently supported by a mix of local
generation, i.e. Gelugor Power Station and high voltage 275kV and 132kV
transmission cables from Seberang Perai.
o Penang Island recorded peak demand of 744 MW on 20th April 2016.
o It is presently supplied through;
* Operating
No Type of Supply Source Capacity
Age
Local Generation @ Gelugor Power
1 330MW > 21 years
Station #
2 275kV Juru to Bayan Lepas (Submarine) 2 x 500MVA ~29 years
3 132kV SKS Prai to Gelugor (Submarine) 2 x 90MVA ~46 years
132kV B.Tengah to Bayan Mutiara (Bridge
4 3 x 100MVA ~35 years
Cable)
Note : #
1. Gelugor Power Station is less efficient plant compared to other plants in the system. Thus, it is more expensive to generate
and rank lower in generator merit order.
2. However, the plant will always be in operation to maintain supply security to Penang island.
3. The plant will be retired on 31st August 2024
Note: *
1. Retirement age for Generator – 21 years
2. Retirement age for UG cables – 40 years
3. Retirement age for Submarine cables – 35 years
SINGLE LINE DIAGRAM
CCD : 27 SEPT 24 CCD : 27 SEPT 24 CCD : 22 FEB 24
CCD : 2 NOV 24
CCD : 21 OCT 24
275KV TRANSMISSION LINE DEVELOPMENT PROJECT FROM
OHL NPRI TO PMU TLGT
Gelugor Power Station is expected to
Project has been awarded to Multi Discovery Sdn. Bhd. – cease operation when its Service Level
KACC Construction Sdn. Bhd. – CHEC Construction Sdn. Agreement (SLA) expires.
Bhd. JV on 12 November 2021 with Contract Completion The 132kV submarine and bridge cables
Date on 22 August 2024 (EOT No.1 until 2 November have aged and have been in operation for
2024). more than 30 years.
In the past, these cables have tripped
The Double Circuit of 275kV Transmission Line from and caused severe supply interruption
PMU New Prai to PMU The Light consist of 31 nos of to customers in Penang island.
monople tower with a distance approximately 8.5km. To ensure supply security to customers
in Penang in view of the retirement
Gelugor Power Station, TNB has planned
for a new 275kV injection into the island
via 2 circuits of 1000MVA transmission
lines from PMU 275kV New Prai in
Seberang Perai to PMU The Light 275kV in
the island
Six (6) Iconic Towers (Areca Nuts @ Buah Pinang shape) and
Twenty-Five (25) Monopole Tower will be constructed with
varying heights.
Soil Investigation Work Piling Work
Pile Cap Installation Tower Erection
KEY ACTIVITIES
Soil Investigation
Stringing works Piling works
Tower erection Pilecap launching
ILLUSTRATION
ACTUAL
ILLUSTRATION
ACTUAL
ICONIC TOWER
ILLUSTRATION ACTUAL
MONOPOLE TOWER
ILLUSTRATION ACTUAL
THANK YOU
