Primary control - description of main technical and design characteristics

Transcription

1 Primary control - description of main technical and design characteristics Summary The purpose of this note is to give enough clarification on the needed requirements a market player has to respect to become a prequalified primary service supplier with assets with limited energy reservoirs so he can decide to start the implementation of such new technologies consecutively. Version V1.0 Date 29/06/2016 This note is one deliverable among others needed to make integration of new technologies with limited energy reservoirs possible. Status Draft Final Document creation and distribution Author Function File location Distribution Thibaut Gérard Market development Approval Version Date Name Function Signature Last version number Approval date First name + name Function Previous versions Version Date Author Summary of changes Version number Version date First name + name Description of changes

2 Contents 1 Context and scope Out of scope Definitions Main characteristics of primary control service Primary control service or FCR service description Existing services in Belgium Deadband around 50 Hz Activation rules Remuneration of primary control service Technical requirements specific for assets with limited energy reservoirs Minimal available energy Energy management strategy Power over dimensioning Prequalification Current principles New principles (coming into force in the next R1 GFA version, for both CIPU & non CIPU GFAs) Assets with limited energy reservoirs FCR reserve providing groups Simulation tests Organizational requirements Metering and combinability Metering Transmission of real time data Combinability with other products Conclusions Next steps Annex alert state definition of ENTSO-e Annex Frequently asked questions Version V1.0 Date 29/06/2016 Page 2 of 27

3 1 Context and scope Over the last years we observed the emergence of new type of technologies (renewable, storage, load ) into the production mix. These technologies are also able to efficiently provide services to the Transmission System Operator (TSO), such as the primary control reserves (R1). In order to integrate them into the primary control market, Elia has identified all required contractual, design and settlement changes and prioritized them among other R1 related developments into a R1 Roadmap, presented to market players during the Taskforce balancing of January 27 th 2016 and illustrated in the figure below: This note focuses on the third work package identified by this roadmap, the integration of new technologies into the primary control service. More precisely, this objective is divided into 3 streams with distinct deadlines and deliverables, as presented in the planning below. Each of these three steps has to be implemented before making the integration of a new technology (such as a battery) into the primary control service possible. Version V1.0 Date 29/06/2016 Page 3 of 27

4 As illustrated in the picture above Elia foresees 3 different steps: 1) Technical stream: explain the technical requirements which need to be respected when delivering primary control services. (Deadline June 30 th ) 2) Market Design stream: explain how in the settlement process the availability and activation control will be performed. A market design note shall be published for consultation on October 15 th. The final market design note shall be published on December 15 th. 3) Contractual stream: Translate the deliverables of the two previous steps into new Balancing rules and new contracts (GFAs). The present document concludes the technical stream and proposes an overview of the main technical requirements and the evolutions that will come into force in the next contracts (GFA) version. All presented changes will be applied for both existing contracts (CIPU contract and non CIPU contract) and are not specific to one technology. This note has as objective to explain the requirements for primary control services so market players know the conditions to successfully pass the prequalification tests and to respect the requirements during delivery. Hence present note should enable market players to start with the implementation of new technologies for the future delivery of primary control. To ease the reading, evolutions of the AS IS principles are identified with the symbol across the whole document, while references to obligations coming from the System Operation guideline are made whenever relevant. Please Version V1.0 Date 29/06/2016 Page 4 of 27

5 note that some requirements are still discussed at European level (ex: minimum available energy when alert state is triggered) and may be subject to future modifications. In such a case, Elia will adapt its principles to apply the new rule defined by ENTSO-e. The document is organized around 3 distinct chapters: o A reminder of the primary control service main characteristics and technical requirements; o The evolutions of the current prequalification procedure, compared to AS IS situation o The metering, combinability of services and real-time data exchange requirements; 2 Out of scope The market design stream identified in blue in the timing presented above will focus on the full review of the current settlement processes. This includes the availability control, the activation control and their related penalty principles. The contractual stream will focus on the implementation of the changes presented in both sub mentioned streams (technical and market design), following the usual consultation process applied for each GFA change proposal. New version of the GFAs will be published in Q Auction rules and bidding instructions on regional and local bidding platforms are described in the current GFA for primary control service (publicly available) and will therefore not be further described in this document. Version V1.0 Date 29/06/2016 Page 5 of 27

6 3 Definitions The following definitions used in this document come from the last version of System Operation guideline or from the current GFA for primary control. Please note that some of these definitions: Can still evolve as the System Operation Guideline has not come into force yet; May not exactly correspond to the current terms used in Elia s R1 GFA. It will be further harmonized in the next GFA release. Delivery Point : A point on an electricity grid or within the electrical installations of a grid user connected to TSO or DSO Grid where the primary control service is delivered. This is associated with a metering system that enables ELIA to control and assess the delivery of the service. FCR : Frequency containment Reserve (FCR) or primary control service means the active power reserves available to contain system frequency after the occurrence of an imbalance; FCR reserve providing unit : means a single or an aggregation of power generating modules and/or demand units connected to a common connection point fulfilling the requirements to provide FCR; FCR reserve providing group : means an aggregation of power generating modules, demand units and/or reserve providing units connected to more than one connection point fulfilling the requirements to provide FCR; Asset with limited energy reservoirs : this can designate a FCR reserve providing unit as well as a FCR providing group. It concerns all assets that can be emptied or filled within a certain period of time (ex: batteries, pump / storage units ) and that are not combined with assets without limited energy reservoirs. Alert state : means the system state in which the system is within operational security limits, but a contingency from the contingency list has been detected and in case of its occurrence the available remedial actions are not sufficient to keep the normal state. The thresholds triggering the alert state mode are detailed in the annex of this document. Version V1.0 Date 29/06/2016 Page 6 of 27

7 4 Main characteristics of primary control service 4.1. Primary control service or FCR service description As defined in Policy 1 of ENTSO-e operational handbook, the objective of primary control is to maintain a balance between generation and consumption (demand) within the synchronous area. By the joint action of all interconnected parties / TSOs, primary control aims at the operational reliability of the power system of the synchronous area and stabilizes the system frequency at a stationary value after a disturbance or incident in the time-frame of seconds, but without restoring the system frequency and the power exchanges to their reference values Whatever the technology behind, any equipment offered by a supplier to deliver primary control must reserve at all time during the delivery period a capacity band (MW) equivalent to their contractual obligation for the unique use of primary control reaction. By doing so, Elia can respect its obligation to always have power available to be physically used to compensate a frequency deviation after its occurrence, within the margins defined by ENTSO-e. In order to enable a monitoring of this requirement, a reference power setpoint [MW] will be sent in real time to Elia via the SCADA 2 SCADA connection (see also chapter 6) This obligation can be illustrated as on the graph below, for equipment contracted for 10 MW R1 200 mhz: Rules organizing the FCR service are defined at European level as well as FCR volume yearly allocated to each TSO, and can be found in published documents on ENTSO-e website. Version V1.0 Date 29/06/2016 Page 7 of 27

8 4.2. Existing services in Belgium Over the years, in addition to the Primary control service defined by ENTSO-e in its operational handbook Policy 1, Elia has developed 3 specific R1 service type to increase competition and market liquidity: 2 asymmetrical products, R1 down and R1 up, for which the supplier needs to react to any frequency deviation bigger than 100 mhz (from nominal frequency : 50 Hz), as illustrated below: 2 symmetrical products, R1 100 mhz and R1 200 mhz, for which the supplier needs to react to any frequency deviation from nominal frequency (50 Hz), as illustrated below: The combination of the first 3 services (R1 upward; R1 downward and R1 100 mhz) gives Elia an equivalent effect to the R1 200 mhz defined by ENTSO-e Deadband around 50 Hz For the symmetrical products R1 100 mhz and R1 200 mhz, a deadband of 10 mhz around 50 Hz (in which no primary control reaction is allowed) is authorized, as illustrated in the graph below. Version V1.0 Date 29/06/2016 Page 8 of 27

9 This requirement is described in Annex V of System Operation Guideline and is in line with other TSOs partners of the regional auction platform. The introduction of this deadband reflects the evolution of technologies capable of FCR delivery and will benefit to all market parties (limit the losses on the FCR asset, use as part of the energy management strategy ) 4.3. Activation rules A FCR reserve providing unit or group must automatically react (linear and proportional reaction) to frequency deviations measured from local frequency meters. Furthermore, as described in Art.154 of system Operation guideline, a FCR supplier will respect the following activation rules: (a) The activation of FCR shall not be artificially delayed and begin as soon as possible after a frequency deviation (b) In case of frequency deviation equal to or larger than 200 mhz, at least 50 % of the full FCR capacity shall be delivered after 15 seconds (c) In case of a frequency deviation equal to or larger than 200 mhz, 100 % of the FCR capacity shall be delivered at latest after 30 seconds (d) In case of a frequency deviation equal to or larger than 200 mhz, the activation of the full FCR capacity shall at least rise linearly from 15 to 30 seconds and ; Version V1.0 Date 29/06/2016 Page 9 of 27

10 (e) In case of a frequency deviation smaller than 200 mhz, the related activated FCR capacity shall be at least proportional with the same time behavior referred to in points (a) to (d) above A concrete example on how to interpret the above described rule on proportional and linear reaction is shown hereunder: In this example, the FCR supplier is contracted for 1 MW of R1. The upper limit of his reserved R1 band is shown by the red line, while his initial program is illustrated by the orange line. After the occurrence of a first frequency deviation of 100 mhz (in red), the supplier must deliver a linear reaction for a volume of 0.5 MW (proportion of his contractual obligation of 1 MW for 200 mhz). The green line shows the supplier s correct behavior. If a supplier deliver more than a proportional reaction (behavior represented by the blue curve), the full FCR capacity will already be used (over delivery) in reaction to a frequency deviation of only 100 mhz. In such a situation, a second frequency deviation in the same direction would not generate additional FCR delivery, which is not compliant with the service description. Version V1.0 Date 29/06/2016 Page 10 of 27

11 4.4. Remuneration of primary control service The remuneration of primary control service consists only in the remuneration of reservation of the contracted primary control power. It is calculated on a monthly basis in function of the unit prices ( /MW/h) obtained in the local FCR auction and /MW in the regional auction. There is no remuneration foreseen for the energy supplied (upward or downward) Technical requirements specific for assets with limited energy reservoirs Article 156 of System operation guideline requires from all FCR provider with FCR providing unit or FCR providing group with an energy reservoir that does not limit its capability to provide FCR to activate as long as the frequency deviation persists. For assets with limited energy reservoirs, more specific requirements are described in Art and : (a) FCR providing units / groups with limited energy reservoirs are continuously available in normal state; (b) For a FCR providing unit with limited energy reservoir, the provider shall activate FCR for as long as the frequency deviation persists unless its energy reservoir is exhausted in either the positive or the negative direction. (c) As of triggering the alert state (stage 1 or stage 2, see definition in 4.5.1) and during the alert state, each FCR provider shall ensure that they are able to fully activate for at least 15 minutes, and maximum 30 minutes. (d) A FCR provider shall ensure the recovery of energy reservoirs as soon as possible and within 2hours after the end of the alert state Minimal available energy The reading of the System operation guideline requirements described in Art 156 gives the following minimal available energy constraints: Version V1.0 Date 29/06/2016 Page 11 of 27

12 1. A FCR provider with assets with limited energy reservoir must always guarantee enough energy to be able to fully activate for 15 minutes, once the alert state is triggered. 2. A FCR provider with assets with limited energy reservoir must be continuously available in normal state. This signifies, in terms of energy delivered equivalent to a full FCR reaction and for the worst case scenario an additional 10 minutes (for R1 200 mhz). Important note: These 10 minutes can be covered by the supplier s energy management strategy, if proven valid after Elia s prequalification process. These 2 requirements will be verified during the FCR providing unit or the FCR providing group prequalification, along with the supplier s energy management strategy (as detailed in 4.5.2) Please note that the first minimal availability requirement described above is not definitive yet and maybe subject to change. This will depend on a cost-benefit analysis that must be performed by ENTSO-e members within 12 months after the entry into force of the System Operation guideline. As it only concerns the energy requirement when in alert state 1, this might mean in the worst case scenario a combined requirement of 30 minutes (first constraint for alert state situation) and 10 minutes (equivalent energy constraint for the worst case scenario of normal mode operation), namely 40 minutes Energy management strategy FCR s main principle is to deliver proportional and linear reaction (physical reaction at delivery or connection point) after the occurrence of a frequency deviation while being available continuously in normal state. To be able to respect this obligation, a FCR provider using assets with limited energy reservoirs must always have determined a valid charging strategy (ex: use of other assets from his portfolio, intraday electricity market ). Because there are many technologies capable to deliver FCR service, each of them being specific, and because each supplier s portfolio is unique, Elia will not limit the energy management possibilities to a predetermined list but: 1 See Chapter 9 Annex on Alert States as currently defined by ENTSOe Version V1.0 Date 29/06/2016 Page 12 of 27

13 Elia will request the details of the supplier s proposed energy management strategy; Elia will verify the feasibility of the proposed energy management strategy during the prequalification process and in its settlement processes (availability control); Elia will monitor the activation of the service to make sure the linearity and proportionality of delivered primary control is respected and that over delivery is not used as energy management strategy (as explained in 4.3); and Elia does not consider the use of the imbalance market as a valid charging strategy Power over dimensioning The example below illustrates that for in some situations, with specific energy management strategies, the prequalified power for FCR must be lower than the assets installed capacity. In this example, the supplier has one battery of 1MW installed capacity, and decides to use the ID electricity market as charging strategy. The deal made on the intraday market for 15 minutes is illustrated by the orange line. Let s assume the supplier wants to offer 1 MW of FCR power. In some situations, with this configuration he will not be able to respect its full FCR obligation, as illustrated by the green line (expected FCR reaction). Version V1.0 Date 29/06/2016 Page 13 of 27

14 The supplier is responsible for the correct sizing of his assets, knowing the energy management strategy he will apply and the other useful assets he might have in its portfolio. Elia will verify the feasibility of the supplier s proposal during the prequalification and availability controls to validate the asset s sizing. Version V1.0 Date 29/06/2016 Page 14 of 27

15 5 Prequalification 5.1. Current principles Even though the activation is portfolio based; the existing prequalification process is applied by Elia on each technical unit (CIPU) or access point (non-cipu). To better reflect the recent evolution of technologies and processes capable of delivering primary control and to align its prequalification processes with the other TSOs members of the common regional auction platform and the obligations of article 155 of System Operation Guideline, Elia has identified 3 areas for improvement in the existing prequalification process: A supplier shall be able to directly prequalify a pool of FCR reserve providing unit to benefit from the portfolio effect ; A supplier shall be able to prequalify a FCR reserve providing group; Elia s simulation test must assess the energy management strategy of a supplier delivering primary reserve with asset with limited energy reservoirs New principles (coming into force in the next R1 GFA version, for both CIPU & non CIPU GFAs) Assets with limited energy reservoirs To prequalify assets with limited energy reservoirs, the supplier will provide Elia with a detailed description of the energy management strategy he will apply to fulfill its obligation to always be available in normal state mode. Elia will verify the feasibility of the energy management strategy and confirm the proposed prequalified volume for FCR. The energy content level [MWh] (ex: State of charge for a battery) in addition to the reference power set point [MW] - will be sent in real time for informational purposes and monitoring needs to Elia via the SCADA 2 SCADA connection (see chapter 6) Version V1.0 Date 29/06/2016 Page 15 of 27

16 FCR reserve providing groups Elia will prequalify individual FCR reserve providing unit (as it is currently done) as well as FCR reserve providing groups or pools. A concrete example of a FCR reserve providing group requesting prequalification for the service R1 200 mhz is shown in the illustration below, where 3 distinct assets connected to 3 different access points are grouped together to deliver the service. Please note that for FCR providing groups there will be no specific product requirements per individual delivery point. In the illustration above existing products are used at delivery point level just for informational purposes. In such a situation, Elia will request from the supplier a definition of the group / pool concept: Which assets are part of the FCR reserve providing group ; Where are they situated (behind which access point, TSO or DSO connected, electrical schemes ); The dependency between those assets ; How will the supplier distribute the needed primary control reaction between these assets, which type of metering device will be used, where are these devices situated on the electrical grid, meter s certification ) The information collected will allow Elia to identify: The FCR reserve providing group as asset with limited energy asset if needed (it is the case in the example above as the battery is the only asset capable of delivering R1 100 mhz); Possible congestion constraint; Version V1.0 Date 29/06/2016 Page 16 of 27

17 If the FCR reserve providing group is identified as asset with limited energy reservoir, Elia will apply the rules described in The qualification of the FCR providing units or FCR providing groups shall be reassessed as described in article 155 of System operation guideline: At least once every 5 years and maximum once a year In case the technical or availability requirements or the equipment have changed, In case of modernization of the equipment related to FCR activation Note: the above mentioned example of the FCR providing group uses 3 access points where 3 existing services R1 (R1 100 mhz, R1 up and R1 down) can be delivered. The supplier has also the possibility to differently distribute the required primary control reaction depending on the flexibility he has gathered in his portfolio Simulation tests Simulation test to assess the minimal available energy The following simulation test will be applicable to both FCR reserve providing unit and FCR reserve providing group. Service type R1 symmetric 200 mhz R1 symmetric 100 mhz R1 asymmetric upward R1 asymmetric downward Frequency deviation of (in Minimal requirement for Worst case scenario (energy equivalent to full activation) for mhz, from 50 Hz): alert state mode: normal mode 2 : 200 mhz 15 minutes 10 minutes 100 mhz 15 minutes 15 minutes 200 mhz 15 minutes 10 minutes 200 mhz 15 minutes 10 minutes For symmetrical R1 services, the same simulation test will be applied twice: in upward and in downward direction. In case a provider want to prequalify FCR providing units or FCR reserve providing groups for the delivery of different products at the same time, a combined simulation test shall be performed. 2 See the thresholds from normal state to alert state defined by ENTSO-e in annex of this document Version V1.0 Date 29/06/2016 Page 17 of 27

18 For assets with limited energy reservoirs, a reconstitution time of 2 hours is authorized after the first simulation test completion. To verify the energy management strategy proposed by the supplier, Elia will do the abovementioned simulation test twice in the same direction (upward or downward), with 2 hours interval between the end of the first simulation test and the beginning of the second. Example of prequalification test for R1 Symmetric 200 mhz: After the test realization, Elia will verify the asset s correct reaction between zero and 30 seconds (linear reaction) and its ability to deliver full primary reserve capacity over a pre-determined duration. Simulation test to assess the energy management strategy The supplier will follow an historical frequency signal selected by Elia over a period of time 3 long enough to assess the energy management strategy and the correct dimensioning of the installation (ratio Power prequalified for R1 / Power installed) as described in Portfolio effect and combined simulation tests When a supplier wants to add FCR reserve providing unit or FCR reserve providing group to an existing portfolio, he can specify whether the entire 3 The duration of this historical frequency deviation is not determined yet. It will last long enough (few hours) to allow Elia to validate the prequalified volume and related energy management strategy. Version V1.0 Date 29/06/2016 Page 18 of 27

19 portfolio will be prequalified (to benefit from his portfolio effect) or the unique additional delivery point. In any case, if a supplier wants to prequalify a same delivery point for more than one service, Elia will verify the possible combinability by doing a combined prequalification. Furthermore, Elia can choose if this combined prequalification applies for the concerned delivery points or for the supplier s entire portfolio Organizational requirements The graph hereunder summarizes the main steps of the prequalification process. Each step will be fully described in the next version of R1 GFA. The establishment of the real time Scada to Scada connection between Elia and the supplier s systems (data exchange is described in 6.2) is part of these organizational requirements and is also verified during the prequalification process. Version V1.0 Date 29/06/2016 Page 19 of 27

20 6 Metering and combinability 6.1. Metering The following metering rules are currently applicable and described in the FCR GFA: The supplier must install local frequency meter for each FCR reserve providing unit. Accuracy of frequency measurements must be better than 10 mhz. The setpoint of frequency is 50,00 Hz. Local frequency meter must be calibrated accordingly. Elia uses its own frequency measurements for its settlement processes (when available). The accuracy of the metering device must be at least class 0.5. Elia accepts the use of the real time measurements available at the delivery point (in other words : behind the access point), coming directly from the Supplier s own metering devices if its characteristics and physical location respects the standards set by Elia and have been verified and accepted during the prequalification process. Supplier may propose aggregated measurement data to ELIA. After analysis, ELIA will approve or reject Supplier s measurement proposal. In any case, for such a situation the Supplier must at least distinguish for its aggregation: - Service Type concerned, - The meter direction (injection or offtake); At ELIA s request, the Supplier will also give (ex-post) additional measurement data per Delivery Point pre-qualified to deliver the Service Version V1.0 Date 29/06/2016 Page 20 of 27

21 6.2. Transmission of real time data In addition to the metering requirements described above in 6.1 and as described in article 47 and following of System operation guideline, Elia will request the following data to be transmitted real time through the SCADA connection using TASE 2 protocol (IEC or ICCP standard): - Tele measures (min. 2second resolution) on each delivery point prequalified to deliver the service; - Delivery signal (primary control power / Contracted primary reserve power for the concerned delivery period) supplied at delivery point level; providing Elia with the information on which delivery point is in real time participating to the primary reserve; - Delivery signal (available primary reserve power / contracted primary reserve power for the concerned delivery period / Service type) aggregated at portfolio level. A change of protocol may only be done after coordination and mutual agreement between the two parties Combinability with other products Elia will authorize the combination of R1 service with any other services (R3, SDR, ICH ) under the following conditions: - There can only be one FSP (supplier) per delivery point; - No combination possible between headmeter (example: R1) and submeter behind (ex: R3 on a delivery point) or with 2 submeters with hierarchy (1 delivery point above another one) Version V1.0 Date 29/06/2016 Page 21 of 27

22 - 2 different FSPs can deliver distinct ancillary services behind an access point only if it concerns 2 independent Delivery point (proven by electrical scheme) Version V1.0 Date 29/06/2016 Page 22 of 27

23 7 Conclusions The purpose of this note is to give enough clarification on the needed requirements a market player has to respect to become a prequalified primary service supplier so the implementation of new technologies such as batteries can start consecutively. To achieve this objective, Elia clarified the existing requirements and fixed the following new principles, based on the rules set in the System operation guideline of ENTSO-e: A deadband of mhz is authorized around 50 Hz, whereas no primary control reaction is allowed. Assets with limited energy reservoirs must comply with : o o o A guarantee of 15 minutes of available energy at full reaction once the alert state defined in the System Operation guideline is reached; A guarantee to remain continuously available while the system frequency remains within the thresholds of normal state mode. This signifies an additional 10 minutes of available energy at full reaction for R1 200 mhz that must be covered by the supplier energy management strategy or by constituting an additional (to the 15 minutes requirement) energy reserve. A valid energy management strategy presented to Elia and approved by Elia during the prequalification process; including the asset valid over dimensioning (in power) if needed; Synthetic primary control service can be constructed from assets part of the supplier s portfolio; each of them delivering part of the needed service. Prequalification simulation tests will verify the energy content of the FCR reserve providing unit or FCR reserve providing group to confirm the minimal available energy level fixed above and; Prequalification simulation tests will verify the feasibility of the supplier s energy management strategy; Additional information exchanged in real time via the Scada to Scada connection is requested to improve the real time monitoring of primary service by the national dispatching and as input for the settlement processes. Version V1.0 Date 29/06/2016 Page 23 of 27

24 8 Next steps This document concludes the first stream presented in the planning hereunder. The annex Frequently asked questions will be updated whenever an additional clarification is judged necessary, based on remarks and comments Elia will receive from market parties. If a significant clarification must be done, Elia will inform the market parties via the Task Force Balancing. By mid-october 2016, Elia will publish a similar document summarizing the new settlement principles, among others: - Availability mechanism; - Penalty mechanism; and - Activation control. These principles will be presented to market parties (via Task Force balancing) and proposed for consultation. Once the rules are finalized and after consideration of the market s reactions and questions, Elia will adapt both contracts for primary reserve (GFA CIPU and GFA non CIPU) and follow the usual consultation and signature process. Version V1.0 Date 29/06/2016 Page 24 of 27

25 9 Annex alert state definition of ENTSO-e The following stages both correspond to alert state defined by ENTSO e. Please note this definition comes from the draft version of the appendix of system operation guideline and has not been validated yet. It is therefore subject to change. Stage 1 Continuous Frequency Deviation of more than 100 mhz over a time period of more than 5 minutes; or Continuous Frequency Deviation of more than 50 mhz over a time period of more than 15 minutes. Stage 2 Continuing Frequency Deviation of more than 100 mhz over a time period of more than 10 minutes; or If triggered manually by one or more Coordination Centers after Stage 1 took place. Version V1.0 Date 29/06/2016 Page 25 of 27

26 10 Annex Frequently asked questions Q: Can a battery be part of Elia s GFA R1 CIPU? A: Yes, a supplier can decide whether he includes his asset in the GFA R1 CIPU or in the GFA R1 non-cipu. Elia will adapt the presented changes of this document in both contracts without distinction. Q: Can I combine my CIPU portfolio with my non CIPU portfolio? A: No, this combination is not possible yet as it requires to develop complex temporary solutions at Elia s side. Elia is aware of the added value of such a combination and has therefore foreseen in their road map a work package generic GFA R1. Work shall start on this package once the deliverables of the work package new technologies has been implemented. Q: Can I participate to R1 service with a single asset with limited energy reservoir (ex: battery), using the intraday electricity market as energy management strategy? A: Yes, under the condition that the requirement on over dimensioning the asset (prequalified R1 power < installed capacity) is respected (see 4.5.3) and that the capacity left is dedicated to the energy management strategy. Q: Can I combine my FCR obligation with another activity (example: the balancing of my portfolio) on the same asset with limited energy reservoir? A: Yes, as long as the reserved power band allocated to FCR service is not used for this another activity (see 4.3) and when applicable the minimum available energy requirements (see 4.5) are respected. Q: Can I distribute the technical reaction requested by service definition on assets from my portfolio in another way than a combination of R1 up R1 down and R1 100 mhz)? A: Yes, synthetic primary control service can be constructed from assets part of the supplier s portfolio; each of them delivering part of the needed service (see 5.2) Version V1.0 Date 29/06/2016 Page 26 of 27

27 Q: If my charging strategy guarantees the continuous activation while the frequency remains in normal state, what is the minimal energy requirement I must respect? A: If the concerned charging strategy has been approved by Elia during prequalification and effectively guarantees the continuous activation requirement in normal mode, the minimal energy requirement is 15 minutes (1 st criteria described in 4.5.1) Version V1.0 Date 29/06/2016 Page 27 of 27