Task Force Balancing - Elia System Operatorpublications.elia.be/upload/UG_upload/Z2GZWH5G0H.pdfAgenda Task Force Balancing – 20/11/2014 2 Status Update Ancillary Services 2015 o

Task Force Balancing

20/11/2014

Agenda

Task Force Balancing – 20/11/2014 2

Status Update Ancillary Services 2015

o Contracting

o STAR 2015

Qualitative common comparison study on the subject of a

BE-NL-DE Coordinated Balancing Area

Status update project R2- wind

Solar eclipse 20/3/2015

Planned Enhancements Balancing Publications 2015

Feedback Expert Working Group

Short Term Sourcing R3

STAR – 2015

Short Term Auction Reserves & new bidding instructions 2015

TF Balancing 20/11/2014

Short Term Auction R1 & R2 - Introduction

Changes resulit in new Bidding Instructions & auction rules which can be

found on the Elia website

http://www.elia.be/en/grid-data/extranet-for-customers/STAR

• Status presented last taskforce Balancing :

• Second consultation Elia: 100% short term tendering for all R1 and R2 products

• Evolutions since last taskforce Balancing:

• 100% of the volume will be proccured via Short term auction:

• 83MW Primary Control Power (R1) – entso-e defined (200mHz)

• 140MW Secondary Control Power (R2) – Up and Down

• Multiple R1 types

• Small updates in the process/timings

• Update publications results on Elia website

Task Force Balancing – 20/11/2014

• Primary Control Power (R1) – entso-e defined (200mHz)

• R1 100mHz from generators + R1 Load + R1 Down

• R1 200mHz R1 Down from Generators

• R1 200mHz from France (see next slide)

• 1MW R1 200mHz = 0,5MW R1 100mHz + 0,5MW R1 Load + 0,5 MW R1 Down

• R1 from Generators can be combined with Secondary Control Power (R2) – Up and

Down

Short Term Auction R1 & R2 – Multiple R1 types

5 Task Force Balancing – 20/11/2014

R1 France

• Same product as R1 200mHz in Belgium

• In order to make a fair trade-off between domestic and cross border offers, Elia must

currently pay reconstitution costs applied by & agreed contractually with RTE on the

FR-BE border, which equal 1,025€/MW/h and which are taken into account during the

optimization of the total reservation procurement costs.

• Capped op 70% R1 need and 70MW (58MW for 2015)

Short Term Auction R1 & R2 – R1 France


Short Term Auction R1 & R2 – minor changes to

process

7

Gate 1 open: introduce

offers

Gate 1 closed: second gate

trigger

Gate 2 open: reply to Elia’s request for new offers

Gate 2 closed: Elia selects the offers

Auction is closed, results are published

Gate 1:

Tuesday of the week in

which the 15th takes

place in month M-1 at

14h00

Gate 2:

Wednesday of the week

in which the 15th takes

place in month M-1 at

14h00

24hours after final

gate closure time

Trigger Gate 2

Criteria 1: Offered volume satisfaction

Criteria 2: Selected volume satisfaction

Criteria 3: Selection Price satisfaction


Short Term Auction R1 & R2 – Calendar 2015


EU regulation on transparency requirements on submission and publication of data in

electricity markets, will become obligatory from January 2015 onwards and which was

published by the Commission Regulation (EU) No 543/2013 on the 14 th of June 2013.

• Elia will publish per product- type, the overall retained volume & average price of

each monthly selection.

• By aggregating results are anonymized & give sufficient transparency towards the

market parties for each product type

http://www.elia.be/en/suppliers/purchasing-categories/energy-purchases/Ancillary-Services-Volumes-Prices/

Short Term Auction R1 & R2 – Publications

9

Tendering &

Contracting Period Delivery Period Reserve Type

Reserve

Product

Total

Contracted

Volume [MW]

Average

Price

[€/MW/h]

Tariff Period

[PEAK/L-OFFPEAK/BASE] Symmetry Type

Generation

Load type

December 2014 Januari 2015

R1

R1-200mHz XX 1,11 BASE SYM Generation

December 2014 Januari 2015 R1-dow n XX 1,11 BASE ASYM-DOWN Generation

December 2014 Januari 2015 R1-load XX 1,11 BASE ASYM-UP Load

December 2014 Januari 2015 R2

R2-up XX 1,11 BASE ASYM-UP Generation

December 2014 Januari 2015 R2-dow n XX 1,11 BASE ASYM-DOWN Generation



















Minor Change:

• Granularity is set to 1MW

Bidding instructions – no change: Highlights of important principles in order to create a well

functioning market:

• Number of bids (minimum 25% - 50% - 75% - 100%, based on economical logic) –

details can be found in the bidding instructions

• Offer maximum technical capacity

• Not obligatory

Short Term Auction R1 & R2 –Bidding instruction


1. Become a Qualified Supplier:

- Application forms to be requested at [email protected]

- The deadline for application is the 1st of month M-2 to participate in delivery of

month M

2. Sign the General Framework (the same for all suppliers)

- The deadline for application is the 1st of month M-1 to participate in delivery of

month M

Supplier can be reassessed at all times

Short Term Auction R1 & R2 – How to participate


Status procurement R3 – R3DP – ICH

2015


Status procurement R3 – R3DP – ICH 2015


Qualitative common comparison study on

the subject of a BE-NL-DE Coordinated Balancing Area


Content

• Context

• Feedback results XB Balancing comparison study between BE-

NL –DE


Context: Objective of Network Code on Electricity Balancing

• The core goal of the Network Code on Balancing is to establish an European wide

integrated cross-border balancing market where TSOs balance the system in a

coordinated way in order to use the most efficient balancing resources taking into

account transmission capacities.

• Current way of balancing

R2 requested by RTE

R3 requested by RTE

• Future way of balancing

R2 requested by RTE

R3 requested by RTE


A. Imbalance Netting (IN)

B. Replacement Reserve (RR)

C. Manual Frequency Restoration (mFRR/R3)

D. Automatic Frequency Restoration

(aFRR/R2)

E. Frequency Containment Reserve (FCR/R1)

A B C

D E

AESAG - 9 July 2014

Pilot iGCC

Pilot GCC

Pilot AUT-CH Pilot BENL

Pilot BENL

• Currently 8 different pilot projects investigate the implementation of the NC on EB

2

1 2

2 3

Pilot GCC

Pilot Nordic Pilot eGCC

Pilot UK-NL

Pilot Terre

Context: Pilot Projects on XB Balancing


Potential cross-border balancing cooperation between

TenneT, Elia and German TSOs

Study between the members of pilot BE-NL and pilot GCC


The study was conducted in two steps:

Detailed comparison of the existing balancing market design of all three countries

Detailed analysis to evaluate any potential cooperation model and their impact on the existing balancing market design.

Objectives of the study

The German, Belgian and Dutch TSOs have, together with E-Bridge and the Institute of

Power Systems and Power Economics (IAEW) of RWTH Aachen University, completed a qualitative common comparison study on the subject of a BE-NL-DE Coordinated Balancing Area (CoBA)

This study was published on the website of Elia on 17/10/2014

The goal of the study was to analyse the options for cross-border cooperation in

balancing between the Belgium, Dutch and German TSOs taking into account the requirements of the relevant draft European Network Codes and Framework Guidelines.

19

2

1


Detailed comparison shows large differences

between countries

20

Product FCR Automatic FRR Manual FRR

Product definition

Procurement period

(capacity)

Bid selection

(capacity)

Remuneration

(capacity)

Product resolution

(activation energy)

Bid selection

(activation energy)

Bid activation

Settlement

(activation energy)

Detailed comparison

shows large differences

between countries

Detailed comparison

shows large differences

between countries

Detailed comparison

shows that DE and NL are

(almost) same, BE is

different


Cooperation for FRR reserve capacity

There are multiple ways to achieve benefits in terms of reserve capacity procurement:

• All options require available cross zonal capacity: either reservation of capacity (proof of socio-economic welfare required) or application of a probabilistic approach as suggested in the Framework Guidelines on Electricity Balancing.

• Exchanging FRR reserve capacity (and taking additional bids into account) requires cross zonal cooperation for FRR energy.

• Exchanging reserve capacity will not be the first step for cooperation, but may make business case for implementing ‘cooperation on activation of FRR energy activation’ positive.

21

Reduce the reserve capacity volume in

the system

Reduce procured volumes:

Reserve capacity sharing

Reduce volume needs

Common dimensioning LFC&R Block subject to XZ capacity

Ensure efficient procurement to ensure

the availability of required reserve capacity

Exchange of reserve capacity

Procure less reserve capacity by taking

(local and cross border) additional bids into account (no total reserve capacity volume reduction).


Conclusion: low hanging fruit for cooperation

has been picked… … but further potential benefits are still available


Proposed next steps

1. Fully implement the “less complex” options for cooperation:

• Analyse the participation of Belgium into the existing common procurement for frequency containment reserves between Germany, the Netherlands and Switzerland

• Increase the amount of frequency containment reserve exchange for the Netherlands and Germany (within the security limits set by the draft Network Code Load Frequency Control & Reserves)

• Analyse further potential in sharing manually activated frequency restoration reserves (within the security limits set by the draft Network Code Load Frequency Control & Reserves)

2. Start the discussion on harmonisation of the “more complex” products for cooperation:

• Start the discussion on the harmonisation of the automatic and manual frequency restoration reserves products for cooperation with the aim of establishing a common merit order list

• Investigate the cooperation possibilities for frequency restoration reserves capacity by common dimensioning, the consideration of additional balancing energy bids and the exchange of reserves

23

Partially implemented implemented


Downward R2 by windmills:

status update

•TF Balancing 20/11/2014

R2- Wind project: Purpose

25

Project

• Technical pilot project (no commercial product)

• Ancillary Services Research project

• R2 down only

Wind

farm

• Estinnes wind farm (2011) of Windvision

• 11 x E-126 Enercon turbines of 7,5 MW

Involved

parties

• WindVision: owner

• Enercon: manufacturer

• Eneco Energy Trade (NL): ARP / signs R2 contract

Main

challenge

• Loss of Green Certificates (for pilot only: compensated by Elia)

• How to determine production of windmill without curtailment

(determined by wind conditions)?


R2 wind project: Available Active Power (AAP)

2 different ways to deliver secondary control on windmills:

• Continuous de-rating towards a guaranteed lower power level (left graph)

• Inefficient; opportunity loss

• Estimate in real-time the Available Active Power (right graph)

• No opportunity loss; however is AAP calculation accurate?


Objectives (high level)

27

• Communication

• Wind farm response

Level 1 Technical

• AAP* accuracy

• Reliability of R2 nomination

• Accuracy & reliability of R2 delivery

Level 2 Performance

• Insights for sustainable integration of R2 on wind farms

(procurement timeframe, costs…)

• Insights into bidding behavior

(how, risk, penalties…)

Level 3 R2 framework simulations

*AAP = Available Active Power Task Force Balancing – 20/11/2014

Communication

Limited # tests on:


• AAP accuracy under

curtailment

Test duration

28

Phase 1: pre-

liminary tests

Phase 2: Participation to R2-

delivery

1 month (not fulltime) 2 months (fulltime)

2 months testing / parallel analysis


• AAP accuracy under curtailment

• Reliability of R2 nomination

• Accuracy & reliability of R2 delivery

Limit impact on market parties

• Only impact: NRV • No impact selected R2 volumes or

imbalance price

• First results satisfactory

• Decision to start phase 2

• Phase 2 started on 6/11

• Technical communication issue


Goal of preliminary tests

Ability of windfarm to follow continuous setpoint: positive test results

AAP quality of the windfarm under curtailed and non-curtailed conditions

• Test show relative good quality of AAP of the windfarm

• Imperfections in AAP calculation and/or wind fluctuations,… result in more fluctuations

on the delivered R2-test signal than for conventional (CCGT) units

• At first sight not problematic; to be confirmed in phase 2

• General: AAP algorithms will further improve towards the future

Ramp sufficient to provide R2? What is minimum stable power?

• Tests showed high ramping capabilities and very low (~ 0 MW) minimum stable power

First results relatively positive for the AAP method to deliver R2

• No need for continuous de-rating method (less efficient)

However limited number of tests performed yet; need for longer test periods to

cover all conditions and to confirm the results of the preliminary tests


Ability to follow setpoint: test 1

Windfarm able to follow a control signal in case of continuous de-rating?

30

Windfarm was asked to

perform continuous de-

rating to 14 MW

Red line shows potential

output of windfarm

without this curtailment

Elia sent out following

setpoint to be followed

by the windfarm

Windfarm produced the

blue output (compared to

black)

Good performance in following a setpoint from an ex-ante constant de-rated output


AAP quality (2)

31

Windfarm able to follow a control signal compared to real-time calculated AAP?

• Good AAP quality throughout the test (3 hours); AAP close to measured output

• Relative good performance in delivering the setpoint sent out by Elia

• No evidence of structural bias of AAP during regulation


Next steps

Phase 2: continuous testing

• Confirm results of preliminary tests

Start reflections on integration of windfarms in R2 market (changes needed)?

Publication of report on Elia website (~project planning)


Solar Eclipse – March 20th 2015


The solar eclipse will pass through the European power system

• between 07:40 and 11:50 UCT (08:40-12:50 CET)

The reduction in solar radiation will directly affect the output of the photovoltaics

• Expected PV capacity in Continental Europe : 90 GW

• Eclipse may potentially cause a reduction of the PV infeed by more than 30 GW during clear sky

conditions

This is expected to have a serious impact on the secure operation

• The current primary reserves amounts to 3 GW.

Solar Eclipse – 20 March 2015

34

Serious challenges

• To BRPs in terms of forecasting and respect of balance obligations

• To TSOs in terms of secure operaton and imbalance management

But solar eclipse is perfectly predictable


Report prepared by Subgroup System Protection and Dynamics (SG SPD) and Subgroup

Coordinated System Operation (SG CSO)

Assumptions

• Installed PV capacity : in Belgium, 3.245MW

• PV generation is concentrated in one spot per country : Brussels

• The duration of the eclipse is considered in each country from its beginning on the western border to its end on the

eastern border of the country : in Belgium, start 08:27 UCT (09:27 CET) – end 10:45 UCT (11:45 CET)

Results

Solar Eclipse – Study

elia presentation template / City, 19.11.2013 / Firstname Lastname 35

Expected power gradient in MW per minute from solar power

during clear sky conditions with and without solar eclipse

Comparison of expected infeed from solar power during clear sky

conditions with and without solar eclipse

34 GW @ 9:43 UTC (10:43 CET) [-400 MW/min ; +800 MW/min]

Belgium max reduction 1.383 MW (4%) Belgium gradient [-17MW/min ; 40MW/min]


• The infeed from PV is highly depending on cloud coverage. The results presented

assume clear sky conditions which may not appear.

We would like to request BRPs to carefully and proactively analyse this special

event and take all necessary preventive measures (e.g. in relation with the behaviour of

their solar forecasting tools) to be able balance their portfolio during the eclipse.

• Elia and European TSOs within ENTSO-e are jointly analysing the consequences and

defining measure to be taken.

• We will keep you informed via TF Balancing and WG System Operations

Solar Eclipse - Next Steps


Enhancements Balancing Publications

2015


Publication of minute values

Current publication

Current 2-minutes values of SI and NRV

Proposals

Separate NRV values: ‘Volume R2 + IGCC’ and ‘Volume R3’

Graph with 1-minute values of the last hour

Download of 1-minute data

Frequency data

Current publication

No publication of the frequency

Proposal

Download of data for each month

Enhancements Balancing Publications 2015


System Warnings

Current publication

No system warnings (IT system failures, information unavailability, problems with ACE calculations, …)

Proposal

Messages published by the TSO to inform all involved parties

SMS services

Current publication

RSS Feed for balancing warnings (request for regulation capacity, inter-TSO activation) and strategic

reserves

Proposal

SMS service in addition to RSS Feed



Forecasting tools

Current publication

Proposal

ID Wind forecasting



Feedback Expert Working Group

Nov 14th


Agenda

• Product design principles SDR from DSO-grid

• Submetering

• Baselining

• Prequalification

• Contract DSO- SDR DSO provider

• R3DP 2016

• STS R3DP

Expert Working Group – 17/11/2014 42

Feedback @TF iSR

Feedback @TF iSR

Submetering

Important principles :

Ownership of meter (allow private meter)

Accuracy/precision of meter data (certification of meter)

Authenticity of transferred meter data

Liability in case of missing/erroneous/false data

Hierarchy: submetering results are not opposable to headmeter results

43

Improves accuracy of determination activated flexibility service/volume

Provides extra liquidity by allowing diversification in offered flexibility services at 1 customer site

Use: subject to product design, submeter is used for

- activation and availability control only or

- for correction of BRP-perimeter

If submeters @ELIA grid baseline is needed to perform activation control

ELIA is currently investigating submetering options @ELIA-grid

Rapport Forbeg dd. 3/2/2014 Expert WG 14/10/2014

Expert Working Group – 1711/2014

44

Sub-meter

EG ELIA 17/11/2014

DSO understands the potential need of sub-meter

When a sub-meter is needed for the market processes, the DSO (as neutral party) must

Place, collect and validate sub-metering data

Calculate flexibility data : cf. base-lining

Facilitate the Settlement: sum of flexibility data per EAN

Control of wipe out effect, correlation between head and sub-meter

Legal framework is missing

Submetering

45

CREG/Cwape:

o submetering, both @TSO-grid and @DSO-grid, must be facilitated in as

from Winter 2015-2016.

o DSOs do not play a role in installing meters, reading nor validating of meter

data as this is a purely commercial activity between 2 parties (ELIA and FSO

acting on behalf of DGU) under the assumption of no correction of BRP-

perimeter.

Febeg

o submetering = pure commercial activity without DSO-involvements

Aggregators

o advocate to at least use the installed private submeters for the purpose of

activation control, and not to impose an additional, equivalent submeter from

the DSO

ELIA and DSOs will continue to investigate how submetering can be facilitated


46

Pre-qualification

EG ELIA 17/11/2014

Concerns SDR 2015/2016 & R3DP2016 ”together”

Clear distinction between the client installation and impact

of FSP flexibility on the network (NFS):

Content

Responsibilities

Timing

Process

47

Pre-qualification

EG ELIA 17/11/2014

Proposition of a DSO document (name to be found) describing client installation

Extract of the connection contract

Helps the client to understand the content of his connection contract

Informs the client on what he can offer to an FSP (and what not)

In the context of flexibility but independent from flexibility product

Reduces NFS duration

Provided by the DSO to the client, then by the client to the potential

FSP: pre-requisite for the client to be included in an FSP pool for NFS

Timing must be in line with tendering ELIA SDR 2015/2016

DSO will proactively deliver this document to clients proposed in

R3DP2014 & R3DP2015. Other clients can contact the DSO, directly

or via an FSP

48

Pre-qualification

EG ELIA 17/11/2014

Update of C8-01 :

Limitation to NFS process

Independent of the ELIA product (for instance R3DP & SDR)

Timing must be in line with tendering ELIA SDR 2015/2016

49

DSO/FSP contract

EG ELIA 17/11/2014

Update of DSO/FSP contract :

Unique contract for the ELIA products, for instance R3DP & SDR

Contracted EAN’s by an FSP for an ELIA contract: living annex

Replaces the existing contracts

Proposition (market consultation and approval by regulators) begin

2015, deadline signature (SDR 2015/16) 1/11/2015

More detailed proposition will follow

R3DP 2016

Expert WG 14/10: stakeholders call for stability, i.e. prolongation of existing R3DP 2015 product design while maintaining 100MW volume cap.


Expert WG 17/11: ELIA proposes to continue with current product design.

However,

CREG requests ELIA to investigate increase of volume cap to 150MW

CREG requests FEBEG to provide technical motiovation in case this increase is not acceptable.

FEBEG calls for investigation of “equivalence” between one MW R3DP and one MW R3Prod

FEBEG requests transparent and non-discriminatory rules for “partial activation

Feedback @next TF Balancing

Short Term Sourcing R3 Prod & R3DP


STS R3DP & R3Prod

52

Link to SDR: transition to STS as from 1/1/2016 also favors load to participate to SDR tendering and monthly to R3DP for those months outside of SDR period (Apr – Oct)


Expert WG 17/11: subject to CREG approval and related consultation , ELIA envisages to source R3 Prod and R3DP on a monthly basis as from 1/1/2016

However,

ELIA will align with stakeholders on how to modify product design accordingly (# activations/month)

Feedback @next TF Balancing

Thank you !


Documents

Task Force Balancing - Elia System Operatorpublications.elia.be/upload/UG_upload/Z2GZWH5G0H.pdfAgenda Task Force Balancing – 20/11/2014 2 Status Update Ancillary Services 2015 o