Definitions

FCR: Frequency Containment Reserve.

aFRR: automatic Frequency Restoration Reserve. The volume and BEWAP are those activated for French scheduling area.

Specific mFRR: Specific manual Frequency Restoration Reserve - specific balancing bids with manual activation having a mobilization lead time of less than 13 minutes. The volume and the specific mFRR BEWAP contain activations for balancing only.

Specific RR: Specific Replacement Reserve - specific balancing bids with manual activation having a mobilization lead time of more than 13 minutes. The volume and the specific RR BEWAP contain activations for balancing only, including those of exchange point entities where applicable.

Non balancing activation: volume of energy activated on the balancing mechanism for the purpose of congestion, frequency ancillary services or reconstitution of reserves. (including activation of exchange points entities where applicable).

Unintended exchanges (DeltaPi): Difference between scheduled exchanges and measured physicals flows at interconnections.

Imbalance Netting (IGCC): Imbalance Netting (International Grid Control Cooperation) - Volume of energy transferred at interconnections by implementing the remainder of imbalances.

Countertrading & XB Redispatching: Volume of activated energy resulting from countertrading and cross-border redispatching mechanisms.

TSO emergency contracts (MEAS – Mutual Emergency Assistance Service): TSO emergency contracts Balance of energies exchanged between TSOs under emergency reserve-sharing agreements. The volumes and the associated prices are included in the imbalance settlement price only when requested by RTE.

Imbalance: Sums of activated energies listed above (upward activations/imports counted negatively; downward activations down/exports counted positively)   

Trend: Upward if the overall imbalance of the French power system is negative or zero and downward in the opposite case.

ISP: Imbalance Settlement Price.

BEWAP: Balancing Energy volume Weighted Average Price.

BEMP: Balancing Energy Marginal Price. 

Standard mFRR SA Satisfied Demand met by MARI Platform: Standard Manual Frequency Restoration Reserve demand expressed by RTE and fulfilled by the MARI Platform through a Scheduled Activation (SA).

mFRR: Manual Frequency Restoration Reserve.

Standard mFRR DA Satisfied Demand met by MARI Platform: Standard Manual Frequency Restoration Reserve demand expressed by RTE and fulfilled by the MARI Platform through a Direct Activation (SA).

Clearing Price SA: Clearing Price fixed by MARI Platform as part of the scheduled activation mecanism.

DA Upward Settlement Price - Starting Activation: Settlement price determined by MARI Platform for direct upward activations during the first quarter-hour of a DA activation.

DA Downward Settlement Price - Starting Activation: Settlement price determined by MARI Platform for direct downward activations during the first quarter-hour of a DA activation.

DA Upward Settlement Price - Ending Activation: Settlement price determined by MARI Platform for direct upward activations during the second quarter-hour of a DA activation.

DA Downward Settlement Price - Ending Activation: Settlement price determined by MARI Platform for direct downward activations during the second quarter-hour of a DA activation. 

Definitions

Energy volume activated for electric system balance: Sums of specific balancing bids activated for P = C balance reason and the standard RR need satisfied by TERRE platform.

Energy volume activated for congestion: Specific balancing bids activated to resolve congestion.

Energy volume activated for SSY: Specific balancing bids activated to reconstitute frequency ancillary services.

Energy volume activated for Marge: Specific balancing bids activated to reconstitute reserves.

Definitions

Energy volume activated, injection point: Energy volume activated by PTS or PDS injection balancing entities

Energy volume activated, extraction point: Energy volume activated by remotely-read and profiled consumption balancing entities

Energy volume activated, exchange point: Energy volume activated by exchange point balancing entities

Energy volume activated, Inter-TSO Balancing Exchange: Energy volume exchanged between TSOs under balancing energy exchange contracts. This mechanism was discontinued in March 2022.

Definitions

Minimal price : Lowest price of balancing energy bids activated downward on the balancing mechanism for P=C balance.

Maximal price : Highest price of balancing energy bids activated upward on the balancing mechanism for P=C balance.

DMO : Mobilisation lead time of the specific balancing bid activated on the balancing mechanism.

DOmin : Minimum duration of use of the specific balancing bid activated on the balancing mechanism.

Definitions

aFRR need requested by RTE : Average value of the French scheduling area control error at 4 second intervals before correction from the IGCC and PICASSO platforms.

aFRR activated for French scheduling area : Average value of aFRR activated at 4 second intervals in France or abroad to cover French aFRR demand.

Volume weighted average price of aFRR activated for French scheduling area : Average of the aFRR activation prices to cover French aFRR demand, calculated based on the Cross-Border Marginal Price (when connected to PICASSO) or the Local Marginal Price (in Merit Order France) at 4 second intervals, and weighted by the volume of aFRR activated for France.

aFRR submitted volume in France : Aggregated aFRR energy bids submitted in France.

aFRR activated volume in France : Average value of the aFRR activated in France at 4 second intervals, regardless of the beneficiary TSO.

aFRR unavailable volume in France : Not Applicable (the concept of unavailable bid does not exist for French aFRR).

Volume weighted average price of aFRR submitted bids in France : Average price of aFRR bids submitted in France, weighted by the submitted volumes.                                                                                                     

Definitions

mFRR Demand expressed by RTE to MARI Platform: Balancing energy volume sent by RTE to MARI platform.

Clearing Price SA: Clearing Price fixed by MARI Platform as part of the scheduled activation mechanism.

DA Upward Settlement Price - Starting Activation: Settlement price determined by MARI Platform for direct upward activations during the first quarter-hour of a DA activation.

DA Downward Settlement Price - Starting Activation: Settlement price determined by MARI Platform for direct downward activations during the first quarter-hour of a DA activation.

DA Upward Settlement Price - Ending Activation: Settlement price determined by MARI Platform for direct upward activations during the second quarter-hour of a DA activation.

DA Downward Settlement Price - Ending Activation: Settlement price determined by MARI Platform for direct downward activations during the second quarter-hour of a DA activation.

Volume of Activated Standard mFRR SA Bids: volume of Bids activated in France for a scheduled 15-minute gate, regardless of the beneficiary TSO.

Volume of Activated Standard mFRR DA Bids: volume of direct activation Bids activated in France for a scheduled 15-minute gate, regardless of the beneficiary TSO.

Volume of Submitted Standard mFRR Bids: Aggregation of the volumes of mFRR Bids submitted in France.

Restrained Bids: Aggregation of the volumes of standard mFRR Bids  not transmitted to MARI platform because of compliancy reasons.