TSO Comparison Group : An Overview

1. TSO Comparison Group :An Overview

2. TSO Comparison Group Group - It is a group of the international electrical Transmission System Operators (TSOs) Area of Operation - Asia, Europe, Africa, Middle East, South Pacific and North and South America Year of Inception - 1995. Total Members - 22

3. Mission : To exchange information on current and future System Operation practices for the purpose of benchmarking Focus Area : On System Operation activities which are usually concentrated in or close to the Control Center

4. Objectives • To have Performance Measures Database (> 50 data points) • Comparing with other TSOs (Benchmark Model) • Identification of peers (Company profiles / Activity Lists) • Learning from other TSOs (Best Practice) • Informal contacts and TSO Questionnaires (Networking) • Counter Benchmark to Regulatory Benchmark

5. The TSO Comparison Group members… • POWERGRID, India • PSE-O (Poland) • Red Electrica de España SA • REN (Portugal) • Statnett SF (Norway) • Svenska Kraftnatt (Sweden) • Swissgrid • TenneT BV (Netherlands) • Transpower (Germany) • Transpower (New Zealand) • Amprion, Germany • China Southern Power Grid • CLP Power (Hong Kong) • Eirgrid (Ireland) • ESKOM (South Africa) • EWA (Bahrain) • Fingrid Oyj (Finland) • Hydro Quebec (Canada) • Landsnet (Iceland) • National Grid Transco (UK) • PJM Interconnection (USA)

6. Activities included : • load/generation balancing, • ancillary services • network operation tasks • markets operation • influence of power markets on system operation

7. Some examples of the activities that are considered to be non-SO activities: • System Expansion Planning; • Power Market Administration / Power Exchange: Facilitate buying and selling of electricity and related products by organizing e.g. energy auction; • Metering and Data Collection; • Ancillary services provision: Providing the contracted ancillary services like generation reserves, losses, reactive support, etc.

8. For Benchmark purposes a ‘standard TSO’ with five key System Operation processes has been defined.. System Operation

9. ..and a process which takes into account the remaining differences between TSOs

10. Data Collected annually since 2000,validated by KEMA, verified by group Example of data points:

11. For each process, two benchmark models have been developed… Environmental Factors(e.g. network size) TSO Process Input(staff, cost) Output(uniform)

12. ..Here, an example of one of the 10 benchmark models is shown Environmental FactorsEF1: Network Size (circuit ends, generators, interconnectors) EF2: PlannedOutages (Transmission and Generation) Operations Planning InputFTE Output(uniform) Model parameters basedonregression of TSO data The Group of International Comparison of Transmission System Operation Practices

13. Which results in an assessmentfor each process for FTE and Cost Example of BenchmarkResults Details are availableformembers

14. Sharing of Practices by Out Performers Results of benchmark models and key activity matrices are used for the identification of out-performers on the different processes. These out-performers present their practices on this process in more detail during workshops of the TSO Comparison Group, which enables both learning from best practice and improvement of existing benchmark models.

15. Simultaneously differences between TSOs are being investigated… Part of ‘Activity List forOperations Planning process’ Share in IT costs The Group of International Comparison of Transmission System Operation Practices

16. Key Graph In addition to the benchmark model TSO Comparison Group has also developed a key graph which serves as an executive summary of the whole results in a single slide. This single slide summary provides an overview of both use of ‘resources’ and the performance of the member TSOs.

17. And summarized in management presentations Sum of fivebenchmarkresults Quality of System Operation(frequency, energynotsupplied, Voltage)

18. Thank You