The Electric Power System

West - Peninsular

Malaysian Power System 1 2

Basic facts – Utility in

 Area: 130,598 km2 (Peninsular Malaysia)  Population: 32.6 million (2019) –DOSM.  Number of electricity consumers: 9.25 million (2019)  Number of TSOs: 1  Number of DSOs: 1  Peak load: 18,808 MW (2020)  Average interruption of electricity: 0.27 min (Transmission System Minutes FY2019)

Malaysian Power System 2 3 Grid Facts and Characteristics

GENERATION INSTALLED CAPACITY • 24,692 MW TNB • 12,304 MW

IPP • 12,388 MW

MAXIMUM DEMAND • 18,808 MW (10 Mar 2020) INSTALLED RESERVED CAPACITY • 5,884 MW • TNB - EGAT - (DC Link) - 300 MW & (AC Link) - 86 MW INTERCONNECTION • TNB - SPPG – (AC Link – 2 X 250 MW) HIGHEST ENERGY DEMAND • 394.24 GWh/day (10 Mar 2020)

Updated: as of 30 April 2020

Malaysian Power System 3 Power Structure of the country Regulated sector Generation Transmission Distribution & Customer Service

COAL/OIL FIRED

GAS-FIRED

HYDRO

POWER TRANSMISSION TRANSMISSION DISTRIBUTION DISTRIBUTION CONSUMERS STATIONS LINES/CABLES SUBSTATIONS LINES/CABLES SUBSTATIONS • 500kV • 500kV • 33kV • 33kV HV Bulk customer • 275kV • 500/275kV • 22kV • 33/11kV • 275kV, 132kV • 230kV • 500/275/132kV • 11kV • 22kVkV • 132kV • 275kV • 0.415kV • 22/11kV MV Bulk customer • 275/132kV • 11kV • 33kV , 22kV • 300kV HVDC • 275/33kV • 11/0.415kV • 275/132/33/11kV LV Bulk customer • 132kV • 11kV, 0.415kV • 132/33kV • 132/33/11kV • 132/22kV • 132/11kV

Malaysian Power System 44 OVERVIEW OF THE NATIONAL GRID

PENINSULAR MALAYSIA Current max. demand : 18808 MW MAIN GRID (10 Mac 2020)

PERLIS LANGKAWI Chuping Kangar Load centres : West coast Kuah TTPC Kota Bharu Kota Setar Alor Setar

KEDAH Gurun Tanah Merah Bedong N Sg. Petani Majority thermal : West coast PRAI & SKS PERGAU

Georgetown Butterworth TEMENGOR power plants PULAU PINANG Bukit Tengah Kuala Terengganu Kulim BERSIA Junjung GELUGOR Bukit Tambun KENERING KELANTAN SG PIAH UPPER SG PIAH LOWER Kuala Berang CHENDEROH KENYIR Gua Musang Kuala Kangsar TERENGGANU National grid : 275 kV lines Taiping PERAK Ipoh PAKA

Papan YTL SEGARI Batu Gajah Kampar JOR Ayer Tawar Telok Kalong GB3 Seri Iskandar Kuala Lipis Dungun Super grid : 500kV lines Lumut WOH JANAMANJUNG ODAK Jerantut Teluk Intan Kuantan

Kuala Kubu Baru Mentakab Interconnections Bukit Tarek SELANGOR Kg Awah Kuala Selangor Bentong Temerloh • 300kV HVDC link (300MW) with EGAT, KL (N) KLWILAYAH (E) Shah Alam PERSEKUTUAN PORT KLANG KL (S) SERDANG CONNAUGHT BRIDGE Hicom G Muadzam Shah Thailand NEGERI SEMBILAN Banting Salak Seremban GENTING SANYEN Tinggi Kuala Pilah Paroi Gemas PD POWER Segamat TJPS MELAKA Mersing POWERTEK Kelemak • 132kV AC interconnection (80MW) with Melaka PAHLAWAN Melaka JOHOR Yong Peng (N) Kluang PANGLIMA Muar EGAT, Thailand Bkt Batu

Batu Pahat

Skudai Pontian Kechil Johor Bahru YTL Pasir Gudang Gelang Patah • 275kV/230kV HVAC (1100MW) link with PASIR Singapore – upgrading in progress TG BIN GUDANG

Malaysian Power System 55 CURRENT SUPPLY/DEMAND BALANCE

Share of generation installed capacity 10% 16% Share of electricity demand

30% 8% 9% 8%

SYSTEM MAXIMUM • 18,808 MW 22% 43% DEMAND

CENTRAL AREA DEMAND • 8,087 MW (2020) 29% 25%

Malaysian Power System 66 INTERCONNECTIONS Summary of existing and future interconnections with Peninsular Malaysia

1. Thailand Interconnections: 1. 132kV AC Bkt Ketri – Sadao (80MW) 2. 300kV HVDC Gurun – Khlong Ngae (300MW)

Mode of power transfer • Two way power purchase (now) • Trans-country power purchase (potential in the future)

4. Interconnection: -500kV HVDC (1600MW-2000MW) -TBD Mode of power transfer • Power purchase

3. Sumatera Interconnection: 2. Singapore Interconnection: -300kV HVDC (600MW) upgrading to 2x550MW ongoing -TNB Mode of power transfer from Singapore Mode of power transfer • Energy exchange (now) • Energy exchange • Trans-country power purchase (potential in the future) • Power purchase (possible in the future)

Malaysian Power System 7 8 Information on TSO(s)

 Name: Berhad (TNB)  Network length (km): 23964 circuit kilometers  Served area: 130,598 km2  Annual transmitted energy: 129.9 TWh  website: http://www.gso.org.my

Malaysian Power System 8 Incentive Based Regulation (IBR)

Electricity Customers (Connected to the Efficiencies achieved by Distribution System) incentive regulation

Electricity Tariff

Customer Services System Transmission Ops Tariff Generation Tariff Tariff Transmission System Operations

Efficiencies achieved by Single Buyer market testing PPAs and SLAs and merit PPAs and merit SLAs and efficient Single order dispatch order dispatch Buyer Rules

TNB Generation IPPs

Malaysian Power System 99 Installed capacity with 10 reference to primary resources

2019 . Currently more than 90% of INSTALLED CAPACITY generation mix and generation INSTALLED CAPACITY CCGT, Fossil-fuel: 88.6% installed capacity are fossil fuel 36.7% dominant.

Coal, 46.4% . 5 Large Scale Solar (LSS) plants

Hydro, become operational in 2019 9.7% Gas-ST, OCGT, Solar , 2.2% 3.4% 1.6% totalling 429MW. GEN MIX . HYDRO Post 2020, rapid growth of large 3.1% SOLAR 0.5% scale RE & Distributed Generation is expected with targeted 20% RE

CCGT penetration by 2025. 40.1% ST-COAL 55.0%

Malaysian Power System 10 11 Energy production with reference to primary resources  Electricity generated 129.9 TWh (Jan – Dec 2019)

OCGT 0.3%  Coal - 55%

 Gas (CCGT,OCGT,ST) ST-COAL 55.0%  Hydro power CCGT  Solar - 0.5% 40.1%

SOLAR 0.5% HYDRO ST-GAS 3.1% DISTILLATE 0.5% 0.0%

Malaysian Power System 11 12 Renewable Energy Growth

Year Projected Target 2011 68 MW

2020 ncm2000 MW 2030 4000 MW

Malaysian Power System 12 12