Operations Reports
System Operations Committee Meeting Minutes
Committee meetings
64th System Operations Committee
Date: 17 February 2021
Place: Teleconference
Documents
63rd System Operations Committee
Date: 2 December 2020
Place: Teleconference
Documents
62nd System Operations Committee
Date: 30 September 2020
Place: Teleconference
Documents
61st System Operations Committee
Date: 10 June 2020
Place: Teleconference
Documents
60th System Operations Committee
Date: 09 April 2020
Place: Teleconference
Documents
59th System Operations Committee
Date: 12 February 2020
Place: Brussels
Documents
Written Voting Decisions
- 25 January 2021 Written Voting Procedure on the Approval of Terms of Reference for the Task Force CE System Separation
- 22 December 2020 Written Voting Procedure on the Approval of the position paper on Grid Forming Capabilities towards system level integration
- 17 December 2020 Written Voting Procedure on the Approval of the OPC and STA pan-European tool - Release 2c legal Business Requirements
- 14 December 2020 Written Voting Procedure on the Approval of RSC Services MLA amendment for Hosting service
- 09 December 2020 ALL TSOs Written Voting Procedure on timeline for the D-2 CGM creation
- 01 December 2020 Written Voting Procedure on RSC Services MLA amendments on cost structure and budget and inclusion of 2 FTEs
- 16 November 2020 Written voting procedure on next steps regarding the project of CBA for FCR provision with LER in accordance with Art.156(11)
- 26 October SOC & MC Written Voting Procedure on the Deterministic Frequency Deviation Report
- 23 September Load Frequency Control 2019 Annual Report
- 23 September Incident Classification Scale 2019 Annual Report
- 4th September 2020 PID on drafting the Network Code on Cybersecurity
- 3rd September 2020 Identification of Regional Electricity Crisis Scenarios Report
- 13 August 2020 All TSO written voting procedure: Amendments to the Methodology for Coordinated Security Analysis (SO GL Art. 75) for public consultation
- 11 June 2020 All Nordic TSOs Decisions – Written Voting Procedure on the approval of the results of the CBA and the suggested time for FCR provision with LER in accordance with Art.156(11) of the Commission Regulation (EU) 2017/1485 of 2 August 2017
- 22 July 2020 System Operations Committee Written Voting Process from 22 July 2020
- 09 July 2020 ALL TSO written voting procedure: Scenario definition and scenario description for the year 2021 CGM creation SOGL Article 65
HVDC Links in System Operations
Steering Group Operations
- Operational Limits and Conditions for Mutual Frequency support over HVDC
- Bus Bar Differential Protection Report
- Short Circuit Contribution of Power Electronics Connecting Generators and Protection report
- Best protection practices for HV EHV AC transmission system
- Operational Limits and Conditions for Frequency Coupling
- System protection behavior and settings during system disturbances
Note the new ICS reports can be found under system operations code annual reports
- The Incident Classification 2016 Annual Report
- The Incident Classification Scale 2015 Annual Report (10 November 2016)
- The Incident Classification Scale 2014 Annual Report (5 November 2015)
- The Incidents Classification Scale Methodology (2013 updated)
- The Incident Classification Scale 2013 Annual Report (9 December 2014)
- The Incidents Classification Scale Methodology (2014)
- The Incidents Classification Scale Methodology (2013)
- The Incidents Classification Scale Methodology (2012)
- The Incidents Classification Scale Guidelines (2012)
Common Grid Model
To guarantee the effcient operation of the end-to-end electrical systems, transmission system operators (TSOs) need complex operational planning approaches across time horizons from several years to the day ahead of delivery; at hourly intervals on the day of delivery as well as in real time.
These complex operational planning processes, require TSOs to build mathematical models of their grid through consistent data structures. These models allow them to run situational awareness simulations of their grids integrating market schedules with representations of the different elements of infrastructure in service. This simulation process is continuous and iterative across the various time horizons. It ensures constant optimisation of the grid usage while maintaining the security of the system, and thus of electricity security of supply.
The ultimate objective is to have the highest quality forecasts of electricity ows across the pan-European electrical system.
Continental Europe
Reports and publications below concern ENTSO-E’s synchronous Continental Europe zone.
2020 Reports
2018 Reports
2017 Reports
- Analysis of ce inter-area oscillations 1st December 2016
- SPD DSA Task Force - Dynamic Security Assessment (DSA)
- Determining generator fault clearing time for the synchronous zone of Continental Europe
- Overfrequency Control Schemes – Recommendations for the Synchronous Area of Continental Europe
- System Dynamic Issues for the synchronous zone of Continental Europe
Inertia report
The report analyses the impact of reduced system inertia of the power system of Continental Europe caused by a shift of generation from classical synchronous generation to power-electronic based non-synchronous generation. By performing calculations with a mean frequency dynamic model, responses are given with respect to the required Limited Frequency Sensitive Mode response to Over frequency (LFSM-O) by using the admissible rate of change of system frequency (RoCoF) as one of the main input parameters.
Blackout in Turkey on 31st March 2015
The detailed report on the third serious event in the Continental European power system within the last 15 years analyses the general system conditions, the sequence of events, the main causes, the critical factors, the power system restoration, the short term and medium term measures and, conclusions and recommendations.
Final report on the Blackout in Turkey 31st March 2015 (V1.0)
Wide Area Monitoring – Current Continental Europe TSOs Applications Overview (September 2015)
The report reflects the current use of Wide Area Monitoring application and tools within the Continental European system. It can be expected that future cooperation and coordination between TSOs will lay the foundation of a more comprehensive system observability.
Download Wide Area Monitoring Report (V5)
Dynamic Line Rating for Overhead Lines (May 2015)
Based on the need to use more intensively the transmission system infrastructure TSOs have started to investigate which measures are suitable in order to reach this goal.
One of the possible options is the dynamic line rating. This technique allows to gain variable transmission line limits by using environmental cooling or heating conditions as one major input factor.
This report aims to provide an overview of the different ways that TSOs implement this technique in overhead lines.
Download the Dynamic Line Rating for Overhead Lines V6 - Continental Europe TSOs Current Practice
Compliance Monitoring
2016
Compliance Monitoring Program 2016:
2015
Compliance Oversight Report 2015:
- Compliance oversight report 2015
- REE Compliance Audit Report
- REN Compliance Audit Report
- TERNA Compliance Audit Report
- CREOS Compliance Audit Report
- RTE Compliance Audit Report
- ELES Compliance Audit Report
2014
Compliance Oversight Report 2014:
- Compliance Oversight Report 2014
- NOS BiH Compliance Audit Report
- APG Compliance Audit Report
- VUEN Compliance Audit Report
- Transelectrica Compliance Audit Report
- SEPS Compliance Audit Report
- ČEPS Compliance Audit Report
Compliance Monitoring Program 2014:
2009 - 2013
2013
Compliance Oversight Report 2013:
- Compliance Oversight Report 2013
- ELIA Compliance Audit Report
- ESO Compliance Audit Report
- MEPSO Compliance Audit report
- PSE Compliance Audit Report
- TenneT Compliance Audit Report
- TransnetBW Compliance Audit Report
Compliance Monitoring Program 2013:
2012
Compliance Oversight Report 2012:
- Compliance Oversight Report 2012
- Assessment on Credibility of Compliance Level Declaration Explanations
- REN Compliance Audit Report
- TERNA Compliance Audit Report
- RTE Compliance Audit Report
- ELES Compliance Audit Report
- REE Compliance Audit Report
- Creos Compliance Audit Report
Compliance Monitoring Program 2012:
2011
Compliance Oversight Report 2011:
- Compliance Oversight Report 2011
- Assessment on Credibility of Compliance Level Declaration Explanations
- TenneT B.V. Compliance Audit Report
- Energinet.dk Compliance Audit Report
- APG Compliance Audit Report
- HTSO Compliance Audit Report
- MAVIR Compliance Audit Report
- 50 Hertz Compliance Audit Report
Compliance Monitoring Program 2011:
2010
Compliance Oversight Report 2010:
- Compliance Oversight Report 2010
- Additional questions analysis of the compliance self-assessment questionnaire 2010
- CGES Compliance Audit Report
- ISO-BiH Compliance Audit Report
- Swissgrid Compliance Audit Report
- Amprion Compliance Audit Report
- JP EMS Compliance Audit Report
- HEP-OPS Compliance Audit Report
Compliance Monitoring Program 2010:
2009
Compliance Oversight Report 2009:
- Compliance Oversight Report 2009
- Overview of organisation of training at TSOs
- REN Compliance Audit Report
- PSE-O Compliance Audit Report
Compliance Monitoring Program 2009:
The Impact of Dispersed Generation on Continental Europe’s Security of Supply
Some European countries currently have large capacities on installed dispersed generation units. However, the frequency protection settings of these units for automatic disconnection from the grid are no longer in line with standard disconnection limits within the transmission system.
The ENTSO-E System Protection & Dynamics Subgroup, under the Continental Europe Regional Group, has carried out a study on this issue: “Dispersed Generation Impact on Continental Europe Region Security”.
Mostly of the renewable type, these generating units are as a rule, connected to distribution systems and have been subjected to connection requirements compliant with the historical planning and operating principles of distribution systems originally designed for passive loads. If simultaneously applied to a large number of units, such unique frequency thresholds can jeopardise the security of the entire interconnected system if there are frequency deviations.
Germany and Italy have undertaken large programs to retrofit the majority of their existing non-compliant units, which should be completed by end-2014. The results of this ENTSO-E study show that in case of maximum power production of dispersed units, and until the on-going retrofit programs are complete, the frequency gradient after massive disconnection of distributed generation is so high that the first step of under-frequency load shedding is not sufficient to prevent the frequency collapsing.
The ENTSO-E study’s simulations also demonstrate that while completion of the German and Italian retrofit programs significantly reduces the likelihood of load shedding, the probability of triggering load shedding remains significant. Therefore, additional retrofit programs in other European countries are needed to avoid reaching the load shedding threshold.
Download the last report update through the link below. The next update will be published in 2015
Dispersed Generation Impact on Continental Europe Region Security
Earlier Reports
Dispersed Generation Impact on Continental Europe Region Security
ENTSO-E Initial Dynamic Model of Continental Europe
The model describes the general dynamic behaviour of the ENTSO-E Continental Europe power system and is suitable for transient analysis. The model is able to represent the main frequency response of the system as well as the main inter-area oscillation modes.
The use of this model is recommended exclusively under the supervision of ENTSO-E dynamic experts. A party wishing to access the Initial Dynamic Models provided by ENTSO-E will be required to sign a Request Form that inlcudes non-disclosure provisions. If you are a University use The Request Form for Universities.
Please note that the model cannot be delivered to private persons. A legal entity has to sign the The Request Form and take over the responsibilities stemming from it.
Please send the filled-in and signed Request Form to the following address: ENTSO-E, Initial Dynamic Model, Avenue de Cortenbergh 100, 1000 Bruxelles, Belgium.
The validity of the The Request will be checked. Please expect that ENTSO-E dynamic experts will contact you to discuss the usability of the model for your project. It is expected that the model will be used for research. It will be delivered by mail containing a link for downloading the requested proprietary format of the model.
Initial Dynamic Model Technical Description
In order to simplify the model and be able to make the network data available to third parties, a few simplifications and anonymisation steps were performed. However, all these adjustments were done in such a way that the dynamic behaviour of the power system is not affected. More details can be found in the Initial Dynamic Model Instruction manual.
The model is currently available in PowerFactory, Netomac, Eurostag, and PSS/E proprietary formats.
[Paper] Dynamic Study Model for the Interconnected Power System of Continental Europe in Different Simulation Tools
This paper presented at PowerTech Eindhoven 2015 conference (Towards Future Power Systems and Emerging Technologies), describes the development process of the Dynamic Study Model (DSM) for the synchronously interconnected power system of Continental Europe in different simulation tools.
Continental Europe Synchronous Area Framework Agreement
Since its entry into force the 14 April 2019, The Synchronous Area Framework (SAFA) for the ENTSO-E Regional Group Continental Europe replaces and supersedes the 2005 Multilateral Agreement Operation Handbook. It develops the Synchronous Area Operation Agreement according to Article 118 of the Guideline on System Operation, one of the eight European network codes and guidelines, and includes also necessary agreements among the TSOs of Continental Europe not bound by EU law.
Policies
ID | Title | Status |
---|---|---|
P1 | Load-Frequency Control and Reserves | Version 1.5 |
P2 | Scheduling | Version 1.5 |
P3 | Accounting and Settlement | Version 1.5 |
P4 | Coordinated Operational Planning | Version 1.5 |
P5 | Emergency and Restoration | Version 1.5 |
P6 | Data Exchanges | Version 1.5 |
Appendices
ID | Title | Status |
---|---|---|
A1 | List of Definitions | Version 1.5 |
A2 | List of Parties | Version 1.5 |
Nordic
The below reports and publications concern ENTSO-E’s Nordic region.
Nordic System Operation Agreement (Nordic SOA)
The new Nordic system operation agreement (Nordic SOA) entered into force on 14th August 2019. The new Nordic SOA supersedes and replaces the previous SOA.
Nordic System Operation Agreemen
- Main Agreement
- Annex Load-Frequency Control & Reserves
- Annex Electricity Balancing
- Annex Operational Planning
- Annex Operational Security
- Annex Emergency and Restoration
- Annex Capacity Calculation and Congestion Management
- Annex Forward Capacity Allocation
Nordic Balancing
Guidelines
Mid-term adequacy forecast
Reports
2020-2021
2019-2020
2018-2019
2017-2018
2016-2017
2015-2016
2014-2015
2013-2014
2012-2013
2011-2012
2010-2011
- Nordic summary of the winter 2010-2011
- Nordic winter power balance 2010-2011
- Evaluation of the ramping restriction in the energy market (PDF, 379KB)
- ENTSO-E’s views on the offshore grid development in the North Seas (PDF, 1.42MB)
- Impact of increased amounts of renewable energy on Nordic power system operation
2009-2010
Studies on frequency stability in the Nordic system
The Nordic Transmission System Operators (Energinet, Fingrid, Statnett and Svenska kraftnät) have through the Nordic Analysis Group (NAG) carried out several parallel projects within the domain of automatic frequency control with frequency quality and stability as the main objective.
The project portfolio has consisted of evaluating the performance of and requirements on
- Frequency containment process (FCP)
- System inertia
- Frequency quality
- Under frequency load shedding (UFLS)
The goals, results and next steps for each of the individual projects are presented in a high level executive summary.
The individual project reports can be downloaded here:
- Reports on Frequency containment process
- Reports on System inertia
- Reports on Frequency quality
- Report on Under Frequency Load Shedding
Reports on future system inertia
Fault Statistics
Nordic and Baltic HVDC Utilisation and Unavailability Statistics 2019
- Nordic and Baltic Grid Disturbance Statistics 2018
- Nordic and Baltic HVAC Disturbance Statistics 2018
- Nordic HVDC Utilisation and Unavailability Statistics 2018
- Nordic and Baltic HVAC Disturbance Statistics 2017
- Nordic and Baltic HVDC Disturbance Statistics 2017
- Nordic and Baltic HVAC Disturbance Statistics 2016
- Nordic and Baltic HVDC Utilization and Unavailability Statistics 2016
- Nordic and Baltic HVAC Disturbance Statistics 2015
- Nordic and Baltic HVDC Utilization and Unavailability Statistics 2015
- Nordic and Baltic HVAC Disturbance Statistics 2014
- Nordic and Baltic HVDC Utilization and Unavailability Statistics 2014
- Nordic HVAC Grid Disturbance Statistics 2013
- Nordic HVDC Utilization and Unavailability Statistics 2013
- Nordic Disturbance Statistics 2012
- Nordic Disturbance Statistics 2011
- Nordic Disturbance Statistics 2010
- Nordic Disturbance Statistics 2009
- Nordic Disturbance Statistics from 1999 to 2008 (Nordel)
Workshop Material
- Nordic System Operation Workshop 1.12.2016
- Nordic System Operations Workshop 10.12.2014
- Nordic Automatic FRR Workshop 9.5.2012
- Nordic System Operations Workshop 28.9.2011
- Nordic System Operations Workshop 13.4.2010
Technical cooperation with third-country TSOs
This document provides recommendations for the cooperation of ENTSO-E with third-country TSOs and is adopted in accordance with Article 8(3)(c) Regulation (EC) No 714 / 2009. In this document, the role of ENTSO-E is to facilitate the cooperation and coordination between TSOs to ensure effective and transparent access to the transmission networks and to provide coordinated and forward-looking planning. Supporting the technical evolution of the transmission system, including the creation of interconnection capacities with third-party TSOs, is a fundamental aspect of ENTSO-E’s remit. Sharing best practices on traditional and new issues will help all involved parties on their way towards a sustainable energy future.
In maintaining and continuously improving these recommendations, ENTSO-E will continue to review and update these recommendations, taking into account practical experience of their implementation. In addition, ENTSO-E intends in the future to consult with third-country TSOs with the intention of making changes that would be beneficial to this framework for technical cooperation.
Managing critical grid situations - Success and Challenges
The report looks at the consequences on systems and markets in the most impacted countries. If the report shows good cooperation notably through Regional Service Coordinators in Western Europe, the cooperation in South East Europe seems to have suffered from a lack of policy and regulatory alignment.
The report lists a series of recommendations like the enhancement of the methodology used in Outlooks to cover more adequacy risks. Today the methodology is not able to forecast situations like the South East Europe January 2017 cold spell. ENTSO-E is committed to make these improvements in time for the next winter outlook.
On net generating capacity, the decrease of fossil fuel (except gas) and the increase in wind and solar is confirmed compared to last summer.
Read Managing critical grid situations - Success and Challenges
Annex - A market analysis of the January 2017 cold spell in Europe
Further Reports and Studies
Dispersed Generation Impact on Continental Europe Region Security (November 2014)
Analysis of CE Inter-Area Oscillations of 19 and 24 February 2011 (September 2011)
January 2019 CE Significant Frequency Deviations
Deterministic Frequency Deviations Report
Read the Deterministic Frequency Deviations Report
Archive
If the report you are looking for is not contained in the page above, you should try the system operations reports archive.