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Global Electricity TSO Profiles and Benchmarking Report 2021

  • Report
  • March 2021
  • Region: Global
  • Global Transmission
  • ID: 5312035

FEATURED COMPANIES

  • Abengoa Peru S.A.
  • Consolidated Edison
  • Energinet.dk
  • ITC Holdings
  • NextEra Energy
  • Swissgrid AG

This report provides detailed profiles of around 212 transmission system operators (TSOs) and developers operating in over 100 countries in six regions - North America, Latin America, Asia, Europe, the Middle East and Africa.


The report has seven distinct sections:


Part 1 provides the executive summary of the report.


Part 2 of the report discusses the key trends in the global electricity transmission sector. It analyses the past growth in the network, evaluates the operational and financial performance of TSOs and examines past and future trends in capital expenditure.


Part 3 of the report compares the growth in transmission line length and transformer capacity of leading TSOs from 2015 to 2020. This section also analyses the future trends in network expansion from 2021 to 2025 for these TSOs.


Part 4 of the report compares the operational and financial performance of leading TSOs. The operational performance of TSOs is compared on parameters such as transmission losses, T-SAIFI and T-SAIDI. The financial performance of the TSO is compared on parameters such as revenue, net profit, return of equity, debt-equity ratio, and profit margin.


Part 5 of the report analyses the past and future capital expenditure programmes of leading TSOs.


Part 6 of the report comprises of leading 212 TSOs and developers operating in over 100 countries in six regions - North America, Latin America, Asia, Europe, the Middle East and Africa.


Each TSO profile has information and data on:


  • Size and growth in the transmission network, 2015-20
    • Line length, by voltage
    • Substation capacity, by voltage
    • Number of substations/transformers, by voltage

  • Operational indicators, 2015-20
    • Annual transmitted electricity
    • Total unserved power transmission per year
    • Network availability
    • Transmission losses
    • Average interruption time
    • T-SAIFI
    • T-SAIDI

  • Financial indicators, 2015-20
    • Revenue
    • Net income
    • Capex/Investment in the transmission network
    • Operational expenditure
    • Return on equity
    • Debt to equity ratio
    • Profit margin

  • Future plans and investment, 2021-25
    • Expected trends in network expansion
    • Expected CAPEX/investment
    • Key planned projects

  • Recent contract awards
  • Key contacts

Part 7 of the report comprises the appendix and has a note on the research methodology along with the citation of sources. It also provides a list of acronyms. A note on key definitions has also be included in this section.


The report will be indispensable for any organization interested in the global electricity transmission industry - utilities, system operators, equipment manufacturers and suppliers, EPC contractors, service and technology providers, investors/lenders, research organizations, industry consultants, regulatory agencies, development institutions, etc.


FEATURED COMPANIES

  • Abengoa Peru S.A.
  • Consolidated Edison
  • Energinet.dk
  • ITC Holdings
  • NextEra Energy
  • Swissgrid AG


PART 1 EXECUTIVE SUMMARY
PART 2 KEY GLOBAL TRENDS
2.1 Growth in network
2.2 Trends in operational performance
2.3 Trends in financial performance
2.4 Trends in capital expenditure


PART 3 INTER-TSO COMPARISON: NETWORK SIZE AND EXPECTED GROWTH
3.1 Operational structure
3.2 Growth in the transmission network, 22015-220
3.3 Expected trends in network expansion, 22021-225


PART 4 INTER-TSO COMPARISON: OPERATIONAL AND FINANCIAL PERFORMANCE
4.1 operational performance
4.2 Financial performance


PART 5 INTER-DSO COMPARISON: PAST AND FUTURE CAPEX
5.1 Trend in capital expenditure, 22015-220
5.2 Expected trends in CAPEX/investment, 22021-225


PART 6 TSO PROFILES
  • Each TSO profile has information and data on:
    • Size and growth in the transmission network, 2015-20
    • Line length, by voltage
    • Substation capacity, by voltage
    • Number of substations/transformers, by voltage
  • Operational indicators, 2015-20
    • Annual transmitted electricity
    • Total unserved power transmission per year
    • Network availability
    • Transmission losses
    • Average interruption time
    • T-SAIFI
    • T-SAIDI
    • Financial Indicators, 2015-20
    • Revenue
    • Net income
    • Capex/Investment in the distribution network
    • Operational expenditure
    • Return on equity
    • Debt to equity ratio
    • Profit margin
  • Future plans and investment, 2021-25
    • Expected trends in network expansion
    • Expected CAPEX/investment
    • Key planned projects
  • Recent contract awards
  • Key contacts
6.1.1 Canada
  • AltaLink
  • ATCO Electric
  • BC Hydro
  • Emera Incorporated
  • ENMAX Power Corporation
  • Hydro One
  • Hydro-Québec
  • Manitoba Hydro
  • Nalcor Energy
  • New Brunswick Power
  • Nova Scotia Power Incorporated
  • SaskPower
6.1.2 USA
  • Ameren Corporation
  • American Electric Power
  • American Transmission Company
  • Avangrid
  • Bonneville Power Administration
  • CentrePoint Energy
  • Consolidated Edison
  • Dominion Energy, Inc.
  • Duke Energy
  • Entergy Corporation
  • Evergy Inc.
  • Exelon Corporation
  • FirstEnergy Corporation
  • ITC Holdings
  • MidAmerican Energy
  • National Grid
  • New York Power Authority
  • NextEra Energy
  • NorthWestern Energy
  • NV Energy
  • Oklahoma Gas and Electric Company
  • Oncor Electric Delivery Company
  • Pacific Gas and Electric Corporation
  • PacifiCorp
  • PNM Resources
  • PPL Corporation
  • Public Service Electric & Gas
  • Southern California Edison
  • Southern Company
  • Tennessee Valley Authority
  • Xcel Energy
6.2 Latin America


6.2.1 Argentina
  • Compañía de Transporte de Energía Eléctrica en Alta Tensión Transener S.A. (Transener)
6.2.2 Bolivia
  • Empresa Nacional de Electricidad (ENDE)
  • ENDE Transmission
  • ISA Bolivia S.A. (ISA Bolivia)
6.2.3 Brazil
  • CELG Geração e Transmissão S.A. (CELG GT)
  • Companhia Hidro Elétrica do São Francisco (Chesf)
  • Companhia Energetica de Minas Gerais (Cemig)
  • Companhia Estadual de Geração e Transmissão Energia Elétrica (CEEE GT)
  • Companhia de Transmissão de Energia Elétrica Paulista (CTEEP)
  • Copel Geração e Transmissão S.A. (Copel GeT)
  • Centrais Elétricas Brasileiras S.A. (Eletrobrás)
  • Centrais Elétricas do Norte do Brasil S.A. (Eletronorte)
  • Eletrosul Centrais Elétricas S.A. (Eletrosul)
  • Furnas Centrais Elétricas S.A. (Furnas)
  • State Grid Brazil Holding S.A. (SGBH)
  • Transmissora Aliança de Energia Elétrica SA (TAESA)
6.2.4 Chile
  • AES Gener S.A.
  • ENGIE Energía Chile S.A. (formerly known as E-CL S.A.)
  • Transelec S.A.
  • Sociedad Austral de Electricidad S.A. (SAESA)
6.2.5 Colombia
  • Celsia Colombia S.A. E.S.P. (formerly known as Empresa de
  • Energía del Pacífico S.A. E.S.P)
  • Grupo Energía Bogotá (GEB)
  • Empresas Públicas de Medellín E.S.P. (EPM)
  • Interconexión Eléctrica S.A. (ISA)
  • Transelca S.A.
6.2.6 Costa Rica
  • Instituto Costarricense de Electricidad (ICE)
6.2.7 Ecuador
  • TRANSELECTRIC S.A.
6.2.8 Guatemala
  • Empresa de Transporte y Control de Energía Eléctrica (ETCEE)
  • Fersa Sociedad Anónima (Fersa SA)
  • Transportadora de Energía de Centroamérica S.A. (TRECSA)
  • Transportista Eléctrica Centroamericana S. A. (TRELEC)
6.2.9 Mexico
  • Comisión Federal de Electricidad (CFE)
6.2.10 Paraguay
  • Administración Nacional de Electricidad (ANDE)
6.2.11 Panama
  • Empresa de Transmisión Eléctrica S.A. (ETESA)
6.2.12 Peru
  • Abengoa Peru S.A.
  • Consorcio Energético de Huancavelica S.A. (CONENHUA)
  • Consorcio Transmantaro S.A. (CTM)
  • Etenorte S.R.L.
  • Eteselva S.R.L.
  • ISA Perú S.A.
  • Red de Energía del Perú S.A. (REP SA)
  • Red Eléctrica del Sur S.A. (Redesur)
6.2.13 Uruguay
  • Administración Nacional de Usinas y Trasmisiones Eléctricas (UTE)
6.3 Asia Pacific


6.3.1 Australia
  • AusNet Services (Transmission) Ltd.
  • ElectraNet Pty Ltd.
  • Powerlink Queensland
  • Tasmanian Networks Pty Ltd (TasNetworks)
  • TransGrid
  • Western Power
6.3.2 Afghanistan
  • Da Afghanistan Breshna Sherkat (DABS)
6.3.3 Azerbaijan
  • Azerenergy
6.3.4 Bangladesh
  • Power Grid Company of Bangladesh (PGCB)
6.3.5 Cambodia
  • Electricité du Cambodge (EDC)
6.3.6 China
  • China Southern Power Grid (CSG)
  • State Grid Corporation of China (SGCC)
6.3.7 India
  • Gujarat Electricity Transmission Company Limited (GETCO)
  • Karnataka Power Transmission Corporation Limited (KPTCL)
  • Madhya Pradesh Power Transmission Company Limited (MPPTCL)
  • Maharashtra State Electricity Transmission Company Limited (MSETCL)
  • Power Grid Corporation of India Limited (POWERGRID)
  • Rajasthan Rajya Vidyut Prasaran Nigam Limited (RRVPNL)
  • Tami Nadu Transmission Corporation Limited (TANTRANSCO)
  • Transmission Corporation of Andhra Pradesh Limited (APTransco)
  • Transmission Corporation of Telangana Limited (TSTRANSCO)
  • Adani Transmission Limited (ATL)
  • India Grid Trust (IndiGrid)
  • Sterlite Power Transmission Limited (SPTL)
6.3.8 Indonesia
  • Perusahaan Listrik Negara (PLN)
6.3.9 Japan
  • Chubu Electric Power Company (Chubu EPC)
  • Chugoku Electric Power Company (Chugoku EPCo)
  • Hokkaido Electric Power Company (Hokkaido EPCo)
  • Hokuriku Electric Power Company (Hokuriku EPCo)
  • J-POWER (Electric Power Development Company Limited)
  • Kansai Electric Power Company (Kansai EPCo)
  • Kyushu Electric Power Company (Kyushu EPCo)
  • Okinawa Electric Power Company (Okinawa EPCo)
  • Shikoku Electric Power Company (Shikoku EPCo)
  • Tohoku Electric Power Company (Tohoku EPCo)
  • Tokyo Electric Power Company (Tokyo EPCo)
6.3.10 Kazakhstan
  • Kazakhstan Electricity Grid Operating Company (KEGOC)
6.3.11 Laos PDR
  • Électricité du Laos (EDL)
6.3.12 Malaysia
  • Sabah Electricity Sdn Bhd (SESB)
  • Sarawak Energy Berhad (SEB)
  • Tenaga Nasional Berhad (TNB)
6.3.13 Myanmar
  • Ministry of Electricity and Energy (MOEE)
6.3.14 Nepal
  • Nepal Electricity Authority (NEA)
6.3.15 New Zealand
  • Transpower
6.3.16 Pakistan
  • K-Electric
  • National Transmission and Despatch Company (NTDC)
6.3.17 Philippines
  • National Grid Corporation of the Philippines (NGCP)
6.3.18 Singapore
  • Singapore Power (SP)
6.3.19 South Korea
  • Korea Electric Power Corporation (KEPCO)
6.3.20 Sri Lanka
  • Ceylon Electricity Board (CEB)
6.3.21 Thailand
  • Electricity Generating Authority of Thailand (EGAT)
6.3.22 Uzbekistan
  • Uzbekenergo
6.3.23 Vietnam
  • EVN National Power Transmission Corporation (EVN NPT)
6.4 Europe


6.4.1 Austria
  • Austrian Power Grid AG (APG)
  • TINETZ-Tiroler Netze GmbH
  • Vorarlberg Übertragungsnetz GmbH (VÜN)
6.4.2 Belgium
  • Elia System Operator SA (Elia)
6.4.3 Bulgaria
  • Electricity System Operator (ESO)
6.4.4 Croatia
  • Hrvatskog operatora prijenosnog sustava d.o.o. (HOPS)
6.4.5 Czech Republic
  • CEPS A.S.
6.4.6 Denmark
  • Energinet.dk
6.4.7 Estonia
  • Elering OÜ
6.4.8 Finland
  • Fingrid Oyj
6.4.9 France
  • Reseau de Transport d’Electricite (RTE)
6.4.10 Georgia
  • Georgia State Electrosystem JSC (GSE)
6.4.11 Germany
  • 50Hertz Transmission GmbH (50Hertz)
  • Amprion GmbH
  • TenneT TSO GmbH
  • TransnetBW GmbH
6.4.12 Greece
  • Anexartitos Diacheiristis Metaforas Ilektrikis Energeias A.E. (ADMIE)
6.4.13 Hungary
  • MAVIR ZRt
6.4.14 Iceland
  • Landsnet HF
6.4.15 Ireland
  • EirGrid Plc
6.4.16 Italy
  • Terna S.p.A
6.4.17 Latvia
  • Augstsprieguma Tikls AS (AST)
6.4.18 Lithuania
  • Litgrid AB
6.4.19 Luxemburg
  • Creos Luxembourg
6.4.20 Macedonia
  • Makedonski Elektro Prenosen Sistem Operator A.D. (MEPSO)
6.4.21 Montenegro
  • Crnogorski Elektroprenosni Sistem A.D. (CGES)
6.4.22 Netherlands
  • TenneT TSO B.V.
6.4.23 Norway
  • Statnett SF
6.4.24 Poland
  • Polskie Sieci Elektroenergetyczne S.A. (PSE)
6.4.25 Portugal
  • Rede Eléctrica Nacional SA (REN)
6.4.26 Romania
  • Transelectrica S.A.
6.4.27 Russia
  • Rosseti Federal Grid Company of Unified Energy System (Rosseti FGC UES)
6.4.28 Serbia
  • Elektromreža Srbije (EMS)
6.4.29 Slovakia
  • Slovenska Elektrizacna Prenosova Sustava AS (SEPS)
6.4.30 Slovenia
  • ELES d.o.o
6.4.31 Spain
  • Red Eléctrica de España S.A. (REE)
6.4.32 Sweden
  • Svenska Kraftnät
6.4.33 Switzerland
  • Swissgrid AG
6.4.34 Turkey
  • Türkiye Elektrik Iletim A.Sp. (TEIAS)
6.4.35 Ukraine
  • Ukrenergo
6.4.36 United Kingdom
  • National Grid Electricity Transmission Plc (NGET)
  • Scottish Hydro Electric Transmission Limited (SHETL)
  • Scottish Power Transmission Plc (SPT)
6.5 Middle East


6.5.1 Bahrain
  • Electricity and Water Authority (EWA)
6.5.2 Iran
  • Iran Power Generation Transmission & Distribution Management Company (TAVANIR)
6.5.3 Israel
  • Israel Electric Corporation (IEC)
6.5.4 Jordan
  • National Electric Power Company (NEPCO)
6.5.5 Kuwait
  • Ministry of Electricity and Water (MEW)
6.5.6 Oman
  • Oman Electricity Transmission Company (OETC)
6.5.7 Qatar
  • Qatar General Electricity & Water Corporation (KAHRAMAA)
6.5.8 Saudi Arabia
  • Saudi Electricity Company (SEC)
6.5.9 United Arab of Emirates (UAE)
  • Dubai Electricity and Water Authority (DEWA)
  • Abu Dhabi Transmission & Despatch Company (TRANSCO)
6.6 Africa


6.6.1 Algeria
  • Société Algérienne de Gestion du Réseau de Transport de l’Electricité (GTRE)
6.6.2 Angola
  • Rede Nacional de Transporte de Electricidade (RNT)
6.6.3 Botswana
  • Botswana Power Corporation (BPC)
6.6.4 Egypt
  • Egyptian Electricity Transmission Company (EETC)
6.6.5 Ethiopia
  • Ethiopian Electric Power Corporation (EEPCo)
6.6.6 Ghana
  • Ghana Grid Company Limited (GRIDCo)
6.6.7 Ivory Coast
  • Compangie Ivoirienne d’Electricité (CIE)
6.6.8 Kenya
  • Kenya Power
  • Kenya Electricity Transmission Company (KETRACO)
6.6.9 Morocco
  • Office National d’Electricité et de l’Eau Potable (ONEE)
6.6.10 Mozambique
  • Electricidade de Moçambique (EDM)
6.6.11 Namibia
  • Namibia Power Corporation (Proprietary) Limited (NamPower)
6.6.12 Nigeria
  • Transmission Company of Nigeria (TCN)
6.6.13 Rwanda
  • Rwanda Energy Group Limited (REG)
6.6.14 South Africa
  • Eskom Holdings SOC Limited's (Eskom)
6.6.15 Tanzania
  • Tanzania Electric Supply Company (TANESCO)
6.6.16 Tunisia
  • Société Tunisienne de l’Electricité et du Gaz (STEG)
6.6.17 Uganda
  • Uganda Electricity Transmission Company Limited (UETCL)
6.6.18 Zambia
  • ZESCO Limited
PART 7 APPENDIX
7.1 Sources and methodology
7.2 List of abbreviations
7.3 Key definitions

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  • 50Hertz Transmission GmbH (50Hertz)
  • Abengoa Peru S.A.
  • Abu Dhabi Transmission & Despatch Company (TRANSCO)
  • Adani Transmission Limited (ATL)
  • Administración Nacional de Electricidad (ANDE)
  • Administración Nacional de Usinas y Trasmisiones Eléctricas (UTE)
  • AES Gener S.A.
  • AltaLink
  • Ameren Corporation
  • American Electric Power
  • American Transmission Company
  • Amprion GmbH
  • Anexartitos Diacheiristis Metaforas Ilektrikis Energeias A.E. (ADMIE)
  • ATCO Electric
  • Augstsprieguma Tikls AS (AST)
  • AusNet Services (Transmission) Ltd.
  • Austrian Power Grid AG (APG)
  • Avangrid
  • Azerenergy
  • BC Hydro
  • Bonneville Power Administration
  • Botswana Power Corporation (BPC)
  • CELG Geração e Transmissão S.A. (CELG GT)
  • Celsia Colombia S.A. E.S.P. (formerly known as Empresa de
  • Centrais Elétricas Brasileiras S.A. (Eletrobrás)
  • Centrais Elétricas do Norte do Brasil S.A. (Eletronorte)
  • CentrePoint Energy
  • CEPS A.S.
  • Ceylon Electricity Board (CEB)
  • China Southern Power Grid (CSG)
  • Chubu Electric Power Company (Chubu EPC)
  • Chugoku Electric Power Company (Chugoku EPCo)
  • Comisión Federal de Electricidad (CFE)
  • Compangie Ivoirienne d’Electricité (CIE)
  • Companhia de Transmissão de Energia Elétrica Paulista (CTEEP)
  • Companhia Energetica de Minas Gerais (Cemig)
  • Companhia Estadual de Geração e Transmissão Energia Elétrica (CEEE GT)
  • Companhia Hidro Elétrica do São Francisco (Chesf)
  • Compañía de Transporte de Energía Eléctrica en Alta Tensión Transener S.A. (Transener)
  • Consolidated Edison
  • Consorcio Energético de Huancavelica S.A. (CONENHUA)
  • Consorcio Transmantaro S.A. (CTM)
  • Copel Geração e Transmissão S.A. (Copel GeT)
  • Creos Luxembourg
  • Crnogorski Elektroprenosni Sistem A.D. (CGES)
  • Da Afghanistan Breshna Sherkat (DABS)
  • Dominion Energy, Inc.
  • Dubai Electricity and Water Authority (DEWA)
  • Duke Energy
  • Egyptian Electricity Transmission Company (EETC)
  • EirGrid Plc
  • ElectraNet Pty Ltd.
  • Electricidade de Moçambique (EDM)
  • Electricity and Water Authority (EWA)
  • Electricity Generating Authority of Thailand (EGAT)
  • Electricity System Operator (ESO)
  • Electricité du Cambodge (EDC)
  • Elektromreža Srbije (EMS)
  • Elering OÜ
  • ELES d.o.o
  • Eletrosul Centrais Elétricas S.A. (Eletrosul)
  • Elia System Operator SA (Elia)
  • Emera Incorporated
  • Empresa de Transmisión Eléctrica S.A. (ETESA)
  • Empresa de Transporte y Control de Energía Eléctrica (ETCEE)
  • Empresa Nacional de Electricidad (ENDE)
  • Empresas Públicas de Medellín E.S.P. (EPM)
  • ENDE Transmission
  • Energinet.dk
  • Energía del Pacífico S.A. E.S.P)
  • ENGIE Energía Chile S.A. (formerly known as E-CL S.A.)
  • ENMAX Power Corporation
  • Entergy Corporation
  • Eskom Holdings SOC Limited's (Eskom)
  • Etenorte S.R.L.
  • Eteselva S.R.L.
  • Ethiopian Electric Power Corporation (EEPCo)
  • Evergy Inc.
  • EVN National Power Transmission Corporation (EVN NPT)
  • Exelon Corporation
  • Fersa Sociedad Anónima (Fersa SA)
  • Fingrid Oyj
  • FirstEnergy Corporation
  • Furnas Centrais Elétricas S.A. (Furnas)
  • Georgia State Electrosystem JSC (GSE)
  • Ghana Grid Company Limited (GRIDCo)
  • Grupo Energía Bogotá (GEB)
  • Gujarat Electricity Transmission Company Limited (GETCO)
  • Hokkaido Electric Power Company (Hokkaido EPCo)
  • Hokuriku Electric Power Company (Hokuriku EPCo)
  • Hrvatskog operatora prijenosnog sustava d.o.o. (HOPS)
  • Hydro One
  • Hydro-Québec
  • India Grid Trust (IndiGrid)
  • Instituto Costarricense de Electricidad (ICE)
  • Interconexión Eléctrica S.A. (ISA)
  • Iran Power Generation Transmission & Distribution Management Company (TAVANIR)
  • ISA Bolivia S.A. (ISA Bolivia)
  • ISA Perú S.A.
  • Israel Electric Corporation (IEC)
  • ITC Holdings
  • J-POWER (Electric Power Development Company Limited)
  • K-Electric
  • Kansai Electric Power Company (Kansai EPCo)
  • Karnataka Power Transmission Corporation Limited (KPTCL)
  • Kazakhstan Electricity Grid Operating Company (KEGOC)
  • Kenya Electricity Transmission Company (KETRACO)
  • Kenya Power
  • Korea Electric Power Corporation (KEPCO)
  • Kyushu Electric Power Company (Kyushu EPCo)
  • Landsnet HF
  • Litgrid AB
  • Madhya Pradesh Power Transmission Company Limited (MPPTCL)
  • Maharashtra State Electricity Transmission Company Limited (MSETCL)
  • Makedonski Elektro Prenosen Sistem Operator A.D. (MEPSO)
  • Manitoba Hydro
  • MAVIR ZRt
  • MidAmerican Energy
  • Ministry of Electricity and Energy (MOEE)
  • Ministry of Electricity and Water (MEW)
  • Nalcor Energy
  • Namibia Power Corporation (Proprietary) Limited (NamPower)
  • National Electric Power Company (NEPCO)
  • National Grid
  • National Grid Corporation of the Philippines (NGCP)
  • National Grid Electricity Transmission Plc (NGET)
  • National Transmission and Despatch Company (NTDC)
  • Nepal Electricity Authority (NEA)
  • New Brunswick Power
  • New York Power Authority
  • NextEra Energy
  • NorthWestern Energy
  • Nova Scotia Power Incorporated
  • NV Energy
  • Office National d’Electricité et de l’Eau Potable (ONEE)
  • Okinawa Electric Power Company (Okinawa EPCo)
  • Oklahoma Gas and Electric Company
  • Oman Electricity Transmission Company (OETC)
  • Oncor Electric Delivery Company
  • Pacific Gas and Electric Corporation
  • PacifiCorp
  • Perusahaan Listrik Negara (PLN)
  • PNM Resources
  • Polskie Sieci Elektroenergetyczne S.A. (PSE)
  • Power Grid Company of Bangladesh (PGCB)
  • Power Grid Corporation of India Limited (POWERGRID)
  • Powerlink Queensland
  • PPL Corporation
  • Public Service Electric & Gas
  • Qatar General Electricity & Water Corporation (KAHRAMAA)
  • Rajasthan Rajya Vidyut Prasaran Nigam Limited (RRVPNL)
  • Red de Energía del Perú S.A. (REP SA)
  • Red Eléctrica de España S.A. (REE)
  • Red Eléctrica del Sur S.A. (Redesur)
  • Rede Eléctrica Nacional SA (REN)
  • Rede Nacional de Transporte de Electricidade (RNT)
  • Reseau de Transport d’Electricite (RTE)
  • Rosseti Federal Grid Company of Unified Energy System (Rosseti FGC UES)
  • Rwanda Energy Group Limited (REG)
  • Sabah Electricity Sdn Bhd (SESB)
  • Sarawak Energy Berhad (SEB)
  • SaskPower
  • Saudi Electricity Company (SEC)
  • Scottish Hydro Electric Transmission Limited (SHETL)
  • Scottish Power Transmission Plc (SPT)
  • Shikoku Electric Power Company (Shikoku EPCo)
  • Singapore Power (SP)
  • Slovenska Elektrizacna Prenosova Sustava AS (SEPS)
  • Sociedad Austral de Electricidad S.A. (SAESA)
  • Société Algérienne de Gestion du Réseau de Transport de l’Electricité (GTRE)
  • Société Tunisienne de l’Electricité et du Gaz (STEG)
  • Southern California Edison
  • Southern Company
  • State Grid Brazil Holding S.A. (SGBH)
  • State Grid Corporation of China (SGCC)
  • Statnett SF
  • Sterlite Power Transmission Limited (SPTL)
  • Svenska Kraftnät
  • Swissgrid AG
  • Tami Nadu Transmission Corporation Limited (TANTRANSCO)
  • Tanzania Electric Supply Company (TANESCO)
  • Tasmanian Networks Pty Ltd (TasNetworks)
  • Tenaga Nasional Berhad (TNB)
  • Tennessee Valley Authority
  • TenneT TSO B.V.
  • TenneT TSO GmbH
  • Terna S.p.A
  • TINETZ-Tiroler Netze GmbH
  • Tohoku Electric Power Company (Tohoku EPCo)
  • Tokyo Electric Power Company (Tokyo EPCo)
  • Transelca S.A.
  • Transelec S.A.
  • TRANSELECTRIC S.A.
  • Transelectrica S.A.
  • TransGrid
  • Transmission Company of Nigeria (TCN)
  • Transmission Corporation of Andhra Pradesh Limited (APTransco)
  • Transmission Corporation of Telangana Limited (TSTRANSCO)
  • Transmissora Aliança de Energia Elétrica SA (TAESA)
  • TransnetBW GmbH
  • Transportadora de Energía de Centroamérica S.A. (TRECSA)
  • Transportista Eléctrica Centroamericana S. A. (TRELEC)
  • Transpower
  • Türkiye Elektrik Iletim A.Sp. (TEIAS)
  • Uganda Electricity Transmission Company Limited (UETCL)
  • Ukrenergo
  • Uzbekenergo
  • Vorarlberg Übertragungsnetz GmbH (VÜN)
  • Western Power
  • Xcel Energy
  • ZESCO Limited
  • Électricité du Laos (EDL)