Draft Framework Guidelines on SYSTEM OPERATION Public Workshop 24.08.2011, ACER/Ljubljana Dr. Christine Materazzi-Wagner Project Manager, E-Control

Draft Framework Guidelines on SYSTEM OPERATION

Public Workshop24.08.2011, ACER/Ljubljana

Dr. Christine Materazzi-WagnerProject Manager, E-Control

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FG System Operation, Public Workshop, 24.08.2011, ACER/Ljubljana

Content

.General scope of System Operation

.Existing and expected problems

.Objectives for SO

.Structure and levels of harmonisation

. The draft FG document

.Consultation questions

.Next steps

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Content



.Objectives for SO




.Next steps

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Scope

. Special focus on the interoperability among all TSOs connected to the synchronous areas. . All TSOs actions with regard to System Operation within a synchronous area or between them bear cross-border character due to law of physics. . Rulebooks already exist in the different synchronous areas, but the debate with the Expert Group revealed problems that have not been tackled by these rules. Hence, a more coherent framework is needed.

Technical operation of the interconnected grid, including generation control, performance monitoring and reporting, reserves, security criteria and specific operational measures.

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Scheme of Topics

1y 1m 1d real-time aftertime

Operational Security

Emergency & Restoration

um

bre

llad

etai

ls

New Applications

Operational Planning & Scheduling

Staff Training & Certification

Load-Frequency-Control

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Content



.Objectives for SO




.Next steps

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Background

Originally, European transmission networks have been developed on a national basis.

Their increasing interconnection has largely been carried out to provide the power systems with better operational security and to pool power reserves.

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General Context

. Existing agreements. Increase of flows and transactions at interconnections. Opening and integration of the electricity markets and increased number of electricity market participants. Integration of variable energy resources and demand side response

Safe and secure technical operation of the electrical network is a prerequisite to develop an efficient energy market, without creating any barriers

(1) Security of Supply(2) Integrated Energy Market(3) 2020 Targets on RES, CO2 and energy efficiency

3 main drivers on EU level

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Problems

Need for more — and better — information exchange

• Misunderstan-dings in system planning and operation

• Hard to forecast power flows

• Lack of real-time information

1Increasing interdepen-dence of control areas

Growing amount of distributed and variable gene-ration capacity

Lack of rules between synchronous areas

2 3 4

• Lack of aware-ness of the roles

• Gaps and overlaps in existing rules

• Severe system failures due to not matching requirements

• Uncoordinated trippings and reconnections

• Generation connected at distribution level Limited observability and control Differing rules

• Lack of reliable generation information

• Integration of DC lines

• Equivalent rules do not exist for interconnectors

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Content



.Objectives for SO




.Next steps

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General Objectives

. Safe and secure system operation has highest priority to ensure full integration of the energy markets. To develop a harmonised system operation regime that does not compromise the security and stability of the power systems, enabling at the same time the proper functioning and technical evolution of the European electricity market and transmission network through coordinated action from TSOs, DSOs and grid users. Achieving and maintaining normal functioning of the power system with a satisfactory level of security and quality of supply, as well as efficient utilisation of infrastructure and resources.

Safe operation of the European electrical systems: From agreements to binding codes

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Specific Objectives (1)

To operate the electrical system in a safe, secure, effective, efficient manner

• Maintain and improve system safety and security

• Operate the electrical system in a safe and secure manner within normal operation limits including cooperation between TSOs and DSOs and grid users

• Reduce the number of critical incidents, avoid major incidents and limit the consequences when they occur

• Provide conditions for specific, ongoing human resources development

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To enable the integration of innovative technologies

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• Enable the integration of renewables, especially regarding variable generation

• Prepare the network for integrating distributed generation

• Make efficient and effective use of smart grid applications

• Provide conditions for exploiting the demand-side potential

• Enable the integration of advanced power electronic systems and meshed DC-lines concepts

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Specific Objectives (2)

To apply the same principles for different systems

• Apply same principles ensure strict rules within synchronous areas have modified rules across asynchronous systems

• Improve alignment of European rules (technical standards) in third countries connected to ENTSO-E systems

3To make full use of information and communi-cation technologies

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• Provide conditions for improved data collection, handling and exchange

• Provide framework for compatibility of e.g. forecast, simulation and modelling tools

• Strengthen the TSOs and DSOs in terms of auditing and monitoring capabilities and performances of generation units and consumers

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Content



.Objectives for SO




.Next steps

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FG Structure

Key Challenges Objectives Topics

Security Criteria

TSOs‘ Roles, Methods

Data Exchange

To operate the electrical system in a safe, secure,

effective and efficient manner

To apply same principles for different

systems

To make full use of information and communication technologies

To enable the integration of innovative

technologies

The key challenges are identified to highlight existing and expected future problems within system operation.

The objectives go one step further and translate the diffuse challenges into bounded target statements, which subsequently provide base for policy option analysis.

A final modification spreads the objectives on core processes of system operation, in order to enhance both, execution of the selected policy option in the Framework Guidelines and operational implementation as Network Codes.

Flo

w






New Applications

Pri

ori

ty

high

low

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Levels of Harmonisation

(A)

(A)

(A)

(C2)

(C1)

(B)

To operate the electrical system in a safe, secure, effective and efficient manner

To apply same principles for different

systems

To make full use of information and communication

technologies

To enable the inte-gration of innovative

technologies

Ope

ratio

nal

Pla

nnin

g &

S

ched

ulin

g

Load

-F

requ

ency

-C

ontr

ol

Sta

ff T

rain

ing

&

Cer

tific

atio

n

Em

erge

ncy

&

Res

tora

tion

New

A

pplic

atio

ns

Ope

ratio

nal

Sec

urity

Policy Options:

(A) Standardisation at synchronous area level

(B) Partly standardisation at EU level

(C1) Full EU-wide harmonisation with detailed framework

(C2) Full EU-wide harmonisation with a structured process

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Content



.Objectives for SO




.Next steps

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General

. Providing comprehensive definition section

. Key content is organised in tables, based on common properties:» Scope & Objectives» Criteria» Methodology & Tools» Roles & Responsibilities» Information Exchange» Implementation Issues

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. Ensuring - on a high level - coherent and coordinated behaviour of bulk transmission networks and power systems in each control area under normal operation, in alert (disturbed) operating states as well as in critical (emergency) operating states.

. Achieving and maintaining a satisfactory level of operational security allowing for efficient utilisation of the power system and resources, including, but not limited to, the necessary inputs to congestion management and balancing.

. Avoiding further deterioration of operational security in cases, where security constraints are violated and systems are not in normal operating state.

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. Ensuring coherent and coordinated behaviour of transmission networks and power systems in preparation of real-time operation.

. Achieving and maintaining a satisfactory level of operational security and efficient utilisation of the power system and resources.

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. Real-time operation of an electric power network requires a balance between generation and load, whereas deviations impact the system frequency. Hence, load-frequency-control is a core task of System Operation, with the main features:

» Ensuring coherent and coordinated behaviour of transmission networks and power systems in real-time operation.

» Achieving and maintaining a satisfactory level of frequency quality and efficient utilisation of the power system and resources.

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. The transmission system operators working at control rooms must be properly trained to make decisions in ensuring secure and efficient network operation. The aim is to develop and maintain the transmission system operators’ skills adequately.

. Common training principles and standards - and finally certification - shall ensure smooth cooperation and coordination up to European level.

. The certification shall extend primarily to the TSO organisation and lead transmission system operators in charge (e.g. shift engineers).

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. The remedial actions may include e.g. the activation of active or reactive power reserves, automatic load shedding or any other emergency measure.

. Recovery or restoration from the alert or critical, to the normal operating state shall occur as fast, effective, reliable and efficient as possible in order to avoid new disturbances and/or further deterioration of system security.

. Ensuring that all efforts in restoration after a major disturbance or a blackout are well coordinated and led by the TSOs within a synchronous area and that no individual measures or attempts to restoration of supply adversely affect the overall common goal of the re-establishment of System Operation as soon as possible.

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New Applications

. Addressing new requirements and future needs for respective consideration in the System Operation framework of the issues listed below should be covered by Network Codes. » Integration and operation of DC bulk-power-transport lines, for

“collecting” the massive wind power and solar-thermal generation.

» Methods and tool enabling high-level and efficient TSO coordination during the operational planning and real-time system operation, like adequate operational observability.

» Dynamic rating of power cables and overhead transmission lines.

» Close interaction of the future integrated electricity balancing markets of Europe with the intraday trade and manually activated (tertiary) reserves.

» Coordinated usage of phase-shifting transformers and/or FACTS for active load flow control and system stability augmentation.

. The Network Codes should also address the issues of integration of any other new technology that could be beneficial and have an influence on System Operation.

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Content



.Objectives for SO




.Next steps

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Consultation questions

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Content



.Objectives for SO




.Next steps

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Next steps

. End of consultation period by 15th of September

. The Regulators evaluate the feedback provided and amend the FG document, if appropriate

. Evaluation document will be published

. Final document by ACER expected for November 2011

. EC will review and appoint ENTSO-E to develop the NCs

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Thank you for your attention

www.acer.europa.eu

Documents

Draft Framework Guidelines on SYSTEM OPERATION Public Workshop 24.08.2011, ACER/Ljubljana Dr. Christine Materazzi-Wagner Project Manager, E-Control