Common use of FRR Clause in Contracts

FRR. Frequency Restoration Reserve At present includes Tertiary Operating Reserve 1 (TOR1) and Tertiary Operating Reserve 2 (TOR2) as defined in the EirGrid and SONI Grid Codes45. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. RR – Replacement Reserve At present includes Replacement Reserve (RR) as defined in the EirGrid and SONI Grid Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. Reference incident for the purposes of dimensioning FCR In IE/NI this is typically referred to as the imbalance that may arise from the loss of the largest single infeed (or outfeed) when determining the requirements for reserve scheduling. Reserve providing unit Any provider that has the technical capability to provide reserves, FCR (POR, SOR), FRR (TOR1, TOR2) and RR, having met the applicable Network Code requirements including the additional properties specified in article 4 of the SAOA and having successfully completed the required performance tests. Demand Unit Demand Side Unit as defined in the EirGrid and SONI Grid Codes and in the ESBN and NIE Distribution Codes; or An Individual Demand Site or Aggregated Demand Site with a Demand Side Unit MW Capacity of at least 4 MW. The Demand Side Unit shall be subject to Central Dispatch. Table 1: SOGL Interpretation 4 SONI Grid Code, 5 EirGrid Grid Code Existing products mapping table DS3 balancing Service Existing Scheduled and Dispatched products SOGL EBGL specific product EBGL standard product balancing capacity EBGL standard product balancing energy SIR Inertia N/A N/A N/A N/A FRR MMS Reports On N/A N/A N/A N/A POR (5-15sec) POR (5-15sec) FCR N/A FCR N/A SOR (15-90sec) SOR (15-90sec) FCR N/A FCR N/A TOR1 (90sec-5min) TOR (90sec-5min) FCR and FRR N/A N/A N/A TOR2 (5-20min) TOR (5-20min) FRR and RR aFRR (7.5 min FAT) RRS (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RRD (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RM1 MMS Reports On N/A N/A RM3 MMS Reports On N/A N/A RM8 MMS Reports On N/A N/A Table 2: Existing Products Mapping Table Network Code Definitions PGM - Power Generating Module means either a synchronous power-generating module or a power park module Demand Unit means an indivisible set of installations containing equipment which can be actively controlled by a demand facility owner or by a CDSO, either individually or commonly as part of demand aggregation through a third party; Demand Facility means a facility which consumes electrical energy and is connected at one or more connection points to the transmission or distribution system. A distribution system and/or auxiliary supplies of a power generating module do no constitute a demand facility; Cross border sharing and exchange of reserves categories FCR, FRR and RR. ‘exchange of reserves’ means the possibility of a TSO to access reserve capacity connected to another LFC area, LFC block, or synchronous area to fulfil its reserve requirements resulting from its own reserve dimensioning process of either FCR, FRR or RR and where that reserve capacity is exclusively for that TSO, and is not taken into account by any other TSO to fulfil its reserve requirements resulting from their respective reserve dimensioning processes;  ‘sharing of reserves’ means a mechanism in which more than one TSO takes the same reserve capacity, being FCR, FRR or RR, into account to fulfil their respective reserve requirements resulting from their reserve dimensioning processes; 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, FRR or RR;

FRR. Frequency Restoration Reserve At present includes Tertiary Operating Reserve 1 (TOR1) and Tertiary Operating Reserve 2 (TOR2) as defined in the EirGrid and SONI Grid Codes45Codes. With 5 EirGrid Grid Code 6 SONI Grid Code ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. mFRR – Manual Frequency Restoration Reserves Means FRR with manual activation. aFRR – Automatic Freque Restoration Reserves Means FRR that can be activated by an automatic control device. aFRR activated by a load frequency controller are at present not used in the IE/NI synchronous area. This is subject to a cost benefit analysis being carried as required by SOGL (Article 145(2)). RR – Replacement Reserve At present includes Replacement Reserve (RR) as defined in the EirGrid and SONI Grid Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. Reference Dimensioning incident for the purposes forthe purpose of dimensioning FCR FRR In IE/NI this is typically referred to as the imbalance that may arise from the loss of the largest single infeed (or outfeed) when determining the requirements for reserve scheduling. Reserve providing unit Any provider that has the technical capability to provide reserves, FCR (POR, SOR), FRR (TOR1, TOR2) and RR, having met the applicable Network Code requirements including the additional properties specified in article 4 of the SAOA and having successfully completed the required performance tests. Demand Unit In the LFCBOA we are only referring to a subset of Demand Units which are defined as Demand Side Unit as defined Units in the EirGrid and SONI Grid Codes and in the ESBN and NIE NIEN Distribution Codes; or An . The definition of a Demand Side Unit is;An Individual Demand Site or Aggregated Demand Site with a Demand Side Unit MW Capacity of at least 4 MW. The Demand Side Unit shall be subject to Central Dispatch. Table 1: SOGL Interpretation 4 SONI Grid Code, 5 EirGrid Grid With the implementation of the Demand Connection Code Existing products mapping table DS3 balancing Service Existing Scheduled and Dispatched products SOGL EBGL specific product EBGL standard product balancing capacity EBGL standard product balancing energy SIR Inertia N/A N/A N/A N/A FRR MMS Reports On N/A N/A N/A N/A POR (5-15sec) POR (5-15sec) FCR N/A FCR N/A SOR (15-90sec) SOR (15-90sec) FCR N/A FCR N/A TOR1 (90sec-5min) TOR (90sec-5min) FCR and FRR N/A N/A N/A TOR2 (5-20min) TOR (5-20min) FRR and RR aFRR (7.5 min FAT) RRS (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RRD (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RM1 MMS Reports On N/A N/A RM3 MMS Reports On N/A N/A RM8 MMS Reports On N/A N/A Table 2: Existing Products Mapping Table Network the HVDC Connection Code Definitions PGM - Power Generating Module means either a synchronous power-generating module or a power park module Demand Unit means an indivisible set of installations containing equipment which can be actively controlled by a demand facility owner or by a CDSO, either individually or commonly as part of demand aggregation through a third party; Demand Facility means a facility which consumes electrical energy and is connected at one or more connection points to the transmission or distribution systemfuture refinements are possible. A distribution system and/or auxiliary supplies of a power generating module do no constitute a demand facility; Cross border sharing and exchange of reserves categories FCR, FRR and RR. ‘exchange of reserves’ means the possibility of a TSO to access reserve capacity connected to another LFC area, LFC block, or synchronous area to fulfil its reserve requirements resulting from its own reserve dimensioning process of either FCR, FRR or RR and where that reserve capacity is exclusively for that TSO, and is not taken into account by any other TSO to fulfil its reserve requirements resulting from their respective reserve dimensioning processes;  ‘sharing of reserves’ means a mechanism in which more than one TSO takes the same reserve capacity, being FCR, FRR or RR, into account to fulfil their respective theirrespective reserve requirements resulting from their reserve dimensioning processes; 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, FRR or RR;.

FRR. Frequency Restoration Reserve At present includes Tertiary Operating Reserve 1 (TOR1) and Tertiary Operating Reserve 2 (TOR2) as defined in the EirGrid and SONI Grid Codes45Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. mFRR – Manual Frequency Restoration Reserves Means FRR with manual activation. aFRR – Automatic Frequency Restoration Reserves Means FRR that can be activated by an automatic control device. This device might be a load frequency controller which continually monitors the area control error ( the difference between scheduled cross border exchange and the actual cross border exchange) corrected for frequency and sends setpoints to FRR providers to increase or decrease their output, based on a merit order, to return the area control error to zero. aFRR activated by a load frequency controller are currently not used in the IE/NI synchronous area. This is subject to a cost benefit analysis being carried as required by SOGL (Article 145(2)). RR – Replacement Reserve At present includes Replacement Reserve (RR) as defined in the EirGrid and SONI Grid Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. Reference Dimensioning incident for the purposes purpose of dimensioning FCR FRR In IE/NI this is typically referred to as the imbalance that may arise from the loss of the largest single infeed (or outfeed) when determining the requirements for reserve scheduling. Reserve providing unit Any provider that has the technical capability to provide reserves, FCR (POR, SOR), FRR (TOR1, TOR2) and RR, having met the applicable Network Code requirements including the additional properties specified in article 4 of the SAOA and having successfully completed the required performance tests. Demand Unit Demand Side Unit as defined in the EirGrid and SONI Grid Codes and in the ESBN and NIE Distribution Codes; or An Individual Demand Site or Aggregated Demand Site with a Demand Side Unit MW Capacity of at least 4 MW. The Demand Side Unit shall be subject to Central Dispatch. Table 1: SOGL Interpretation 4 SONI Grid Code, 5 EirGrid Grid Code Existing products mapping table DS3 balancing Service Existing Scheduled and Dispatched products SOGL EBGL specific product EBGL standard product balancing capacity EBGL standard product balancing energy SIR Inertia N/A N/A N/A N/A FRR MMS Reports On N/A N/A N/A N/A POR (5-15sec) POR (5-15sec) FCR N/A FCR N/A SOR (15-90sec) SOR (15-90sec) FCR N/A FCR N/A TOR1 (90sec-5min) TOR (90sec-5min) FCR and FRR N/A N/A N/A TOR2 (5-20min) TOR (5-20min) FRR and RR aFRR (7.5 min FAT) RRS (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RRD (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RM1 MMS Reports On N/A N/A RM3 MMS Reports On N/A N/A RM8 MMS Reports On N/A N/A Table 2: Existing Products Mapping Table 1 Definitions 1 Network Code Definitions PGM - Power Generating Module means either a synchronous power-generating module or a power park module Demand Unit means an indivisible set of installations containing equipment which can be actively controlled by a demand facility owner or by a CDSO, either individually or commonly as part of demand aggregation through a third party; Demand Facility means a facility which consumes electrical energy and is connected at one or more connection points to the transmission or distribution system. A distribution system and/or auxiliary supplies of a power generating module do no constitute a demand facility; Cross border sharing and exchange of reserves categories FCR, FRR and RR. ‘exchange of reserves’ means the possibility of a TSO to access reserve capacity connected to another LFC area, LFC block, or synchronous area to fulfil its reserve requirements resulting from its own reserve dimensioning process of either FCR, FRR or RR and where that reserve capacity is exclusively for that TSO, and is not taken into account by any other TSO to fulfil its reserve requirements resulting from their respective reserve dimensioning processes;  • ‘sharing of reserves’ means a mechanism in which more than one TSO takes the same reserve capacity, being FCR, FRR or RR, into account to fulfil their respective reserve requirements resulting from their reserve dimensioning processes; Reserve providing unit means a single or an aggregation Table 2 – Definitions 2 TITLE 2 Methodologies, Conditions and Values jointly developed by XxxXxxx and SONI to satisfy the needs of power generating modules and/or demand units connected the SOGL within the LFCBOA for IE/NI, which are subject to a common connection point fulfilling the requirements to provide FCR, FRR or RR;regulatory authority approval

FRR. Frequency Restoration Reserve At present includes Tertiary Operating Reserve 1 (TOR1) and Tertiary Operating Reserve 2 (TOR2) as 6 EirGrid Grid Code 7 SONI Grid Code defined in the EirGrid and SONI Grid Codes45Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. mFRR – Manual Frequency Restoration Reserves Means FRR with manual activation. aFRR – Automatic Frequency Restoration Reserves Means FRR that can be activated by an automatic control device. aFRR activated by a load frequency controller are at present not used in the IE/NI synchronous area. This is subject to a cost benefit analysis being carried as required by SOGL (Article 145(2)). RR – Replacement Reserve At present includes Replacement Reserve (RR) as defined in the EirGrid and SONI Grid Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. Reference Dimensioning incident for the purposes purpose of dimensioning FCR FRR In IE/NI this is typically referred to as the imbalance that may arise from the loss of the largest single infeed (or outfeed) when determining the requirements for reserve scheduling. Reserve providing unit Any provider that has the technical capability to provide reserves, FCR (POR, SOR), FRR (TOR1, TOR2) and RR, having met the applicable Network Code requirements including the additional properties specified in article 4 of the SAOA and having successfully completed the required performance tests. Demand Unit In the LFCBOA we are only referring to a subset of Demand Units which are defined as Demand Side Unit as defined Units in the EirGrid and SONI Grid Codes and in the ESBN and NIE NIEN Distribution Codes; or An . The definition of a Demand Side Unit is;An Individual Demand Site or Aggregated Demand Site with a Demand Side Unit MW Capacity of at least 4 MW. The Demand Side Unit shall be subject to Central Dispatch. Table 1: SOGL Interpretation 4 SONI Grid Code, 5 EirGrid Grid With the implementation of the Demand Connection Code Existing products mapping table DS3 balancing Service Existing Scheduled and Dispatched products SOGL EBGL specific product EBGL standard product balancing capacity EBGL standard product balancing energy SIR Inertia N/A N/A N/A N/A FRR MMS Reports On N/A N/A N/A N/A POR (5-15sec) POR (5-15sec) FCR N/A FCR N/A SOR (15-90sec) SOR (15-90sec) FCR N/A FCR N/A TOR1 (90sec-5min) TOR (90sec-5min) FCR and FRR N/A N/A N/A TOR2 (5-20min) TOR (5-20min) FRR and RR aFRR (7.5 min FAT) RRS (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RRD (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RM1 MMS Reports On N/A N/A RM3 MMS Reports On N/A N/A RM8 MMS Reports On N/A N/A Table 2: Existing Products Mapping Table Network the HVDC Connection Code Definitions PGM - Power Generating Module means either a synchronous power-generating module or a power park module Demand Unit means an indivisible set of installations containing equipment which can be actively controlled by a demand facility owner or by a CDSO, either individually or commonly as part of demand aggregation through a third party; Demand Facility means a facility which consumes electrical energy and is connected at one or more connection points to the transmission or distribution systemfuture refinements are possible. A distribution system and/or auxiliary supplies of a power generating module do no constitute a demand facility; Cross border sharing and exchange of reserves categories FCR, FRR and RR. ‘exchange of reserves’ means the possibility of a TSO to access reserve capacity connected to another LFC area, LFC block, or synchronous area to fulfil its reserve requirements resulting from its own reserve dimensioning process of either FCR, FRR or RR and where that reserve capacity is exclusively for that TSO, and is not taken into account by any other TSO to fulfil its reserve requirements resulting from their respective reserve dimensioning processes;  ‘sharing of reserves’ means a mechanism in which more than one TSO takes the same reserve capacity, being FCR, FRR or RR, into account to fulfil their respective reserve requirements resulting from their reserve dimensioning processes; 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, FRR or RR;.

FRR. Frequency Restoration Reserve At present includes Tertiary Operating Reserve 1 (TOR1) and Tertiary Operating Reserve 2 (TOR2) as defined in the EirGrid and SONI Grid Codes45Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. mFRR – Manual Frequency Restoration Reserves Means FRR with manual activation. aFRR – Automatic Frequency Restoration Reserves Means FRR that can be activated by an automatic control device. This device might be a load frequency controller which continually monitors the area control error ( the difference between scheduled cross border exchange and the actual cross border exchange) corrected for frequency and sends setpoints to FRR providers to increase or decrease their output, based on a merit order, to return the area control error to zero. aFRR activated by a load frequency controller are currently not used in the IE/NI synchronous area. This is subject to a cost benefit analysis being carried as required by SOGL (Article 145(2)). RR – Replacement Reserve At present includes Replacement Reserve (RR) as defined in the EirGrid and SONI Grid Codes. With ongoing implementation of Network Codes, in particular Electricity Balancing, future refinements are possible to ensure alignment with Network Codes. Reference Dimensioning incident for the purposes purpose of dimensioning FCR FRR In IE/NI this is typically referred to as the imbalance that may arise from the loss of the largest single infeed (or outfeed) when determining the requirements for reserve scheduling. Reserve providing unit Any provider that has the technical capability to provide reserves, FCR (POR, SOR), FRR (TOR1, TOR2) and RR, having met the applicable Network Code requirements including the additional properties specified in article 4 of the SAOA and having successfully completed the required performance tests. Demand Unit Demand Side Unit as defined in the EirGrid and SONI Grid Codes and in the ESBN and NIE Distribution Codes; or An Individual Demand Site or Aggregated Demand Site with a Demand Side Unit MW Capacity of at least 4 MW. The Demand Side Unit shall be subject to Central Dispatch. Table 1: SOGL Interpretation 4 SONI Grid Code, 5 EirGrid Grid Code Existing products mapping table DS3 balancing Service Existing Scheduled and Dispatched products SOGL EBGL specific product EBGL standard product balancing capacity EBGL standard product balancing energy SIR Inertia N/A N/A N/A N/A FRR MMS Reports On N/A N/A N/A N/A POR (5-15sec) POR (5-15sec) FCR N/A FCR N/A SOR (15-90sec) SOR (15-90sec) FCR N/A FCR N/A TOR1 (90sec-5min) TOR (90sec-5min) FCR and FRR N/A N/A N/A TOR2 (5-20min) TOR (5-20min) FRR and RR aFRR (7.5 min FAT) RRS (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RRD (20min-1hr) RR (20min-4hrs) RR mFRR (12.5 min FAT) RR (30min FAT) RM1 MMS Reports On N/A N/A RM3 MMS Reports On N/A N/A RM8 MMS Reports On N/A N/A Table 2: Existing Products Mapping Table Network Code Definitions PGM - Power Generating Module means either a synchronous power-generating module or a power park module Demand Unit means an indivisible set of installations containing equipment which can be actively controlled by a demand facility owner or by a CDSO, either individually or commonly as part of demand aggregation through a third party; Demand Facility means a facility which consumes electrical energy and is connected at one or more connection points to the transmission or distribution system. A distribution system and/or auxiliary supplies of a power generating module do no constitute a demand facility; Cross border sharing and exchange of reserves categories FCR, FRR and RR. ‘exchange of reserves’ means the possibility of a TSO to access reserve capacity connected to Table 1 Definitions 1 another LFC area, LFC block, or synchronous area to fulfil its reserve requirements resulting from its own reserve dimensioning process of either FCR, FRR or RR and where that reserve capacity is exclusively for that TSO, and is not taken into account by any other TSO to fulfil its reserve requirements resulting from their respective reserve dimensioning processes;  ‘sharing of reserves’ means a mechanism in which more than one TSO takes the same reserve capacity, being FCR, FRR or RR, into account to fulfil their respective reserve requirements resulting from their reserve dimensioning processes; Reserve providing unit means a single or an aggregation Table 2 – Definitions 2 TITLE 2 Methodologies, Conditions and Values jointly developed by XxxXxxx and SONI to satisfy the needs of power generating modules and/or demand units connected the SOGL within the LFCBOA for IE/NI, which are subject to a common connection point fulfilling the requirements to provide FCR, FRR or RR;regulatory authority approval