Global Electricity Transmission System Operator Profiles and Benchmarking Report 2025

The sixth edition of the Global Transmission TSO Profiles and Benchmarking Report released in January 2025, provides detailed profiles of around 201 transmission system operators and developers operating in 94 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 2019 to 2023. This section also analyses the future trends in network expansion from 2024 to 2030 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 on 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 profiles of 201 TSOs and developers operating in over 94 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, 2019-23
  – Line length, by voltage
  – Substation capacity, by voltage
  – Number of substations/transformers, by voltage
• Operational indicators, 2019-23
  – Annual transmitted electricity
  – Total unserved power transmission per year
  – Network availability
  – Transmission losses
  – Average interruption time
  – T-SAIFI
  – T-SAIDI
• Financial indicators, 2019-23
  – Revenue
  – Net income
  – Capex/Investment in the transmission network
  – Operational expenditure
  – Return on equity
  – Debt to equity ratio
  – Profit margin
• Future plans and investment, 2024-30
  – 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 sources. It provides a list of acronyms and a note on key definitions.

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

The report is priced at USD5,000. It is available in PDF Format and database in excel.

To download the brochure for the report, please click here.

To purchase the report online, please click here.

For further inquiries, please contact:

Khushboo Chawla
Global Transmission Report
Email: khushboo.chawla@globaltransmission.info