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In order to ensure a balance between supply and demand, RTE procure the reserves availability (power) with market players.

  1. Each generator must participate in the adjustments to the Frequency Containment Reserve and Automated Frequency Restoration Reserve according to the conditions laid down in the ancillary service rules. The Automatic Reserve Requirements issued by RTE give place to a fixed remuneration from RTE in accordance with Article 2.10.2.
  2. Contracting of the so called tertiary reserve is made following a tender each year with the balancing market players. Contracting guarantees a fixed annual volume of Manual Frequency Restoration Reserve adjustable in 13 min (1,000 MW) and Replacement Reserve adjustable in 30 min (500 MW) over a period running from 1 January to 31 December. In return for their contractual commitment to make capacity available on the balancing mechanism, the balancing players receive an annual bonus based on the offered volume and the activation time. The price displayed per half-hour corresponds to the average half-hour price for the month in question and paid to the contracting parties.

Balancing bids submitted and compliant with the Balance Responsible Entity/Balancing Mechanism rules are accepted by RTE.
Non-compliant offers are rejected. Any offer accepted may be called and thus the energy activated by RTE.

Accepted offers

Balancing bids submitted and compliant with the Balance Responsible Entity/Balancing Mechanism rules are accepted by RTE.
Non-compliant offers are rejected. Any offer accepted may be called and thus the energy activated by RTE.

Activated offers

Imbalance

Definition

The forecast imbalance published in this page corresponds to the difference estimated by RTE between :

  • the production program transmitted to RTE by those responsible for the programming corrected by exchanges at the interconnections (import)
  • the consumption forecast made by RTE corrected by exchanges at the interconnections (Exporting)

The publication is provided by RTE every hour over the next 10 steps.

A history of this publication is also available on this page. (Coming soon)

List of message(s)

Definition

The information message (called alert message in the scheduling, balancing mecanism and BRPs rules) is sent from D-1 as soon as the volume available capacity on the balancing mecanism usable, taking into account the forecasted imbalance on demand peak, is lower than minimum required margin. This message aims to inform the BRPs about the forecasted imbalance at the demand peak in order for the to compensate it and the balancing mecanism actors in order to submit complementary offers.

The message for potential need to activate comlementary offers (called downgraded mode in the scheduling, balancing mecanism and BRPs rules) for balancing is sent on the same criteria as the information message or close to real time in case of outage. The message aims, close to TSO opreating range, to inform the balancing mecanism actors that RTE may potentially activate complementary offers and the BRPs that in case of activation of more expensive offers there may be an impact on the imbalance settlement price.

Definition

Margins represent a volume of capacity available for RTE to be used to cope with generation or consumption contingency consequences. They are thus one of the essential components of system control under safe operating conditions.

RTE proposes on this web page :

  • To display the available upward capacities on the margin range without imbalance, as well as the forecasted imbalance on the demand peak.
  • To display the available upward capacities on the margin range if Balancing Responsible Parties take no action before the market closure for the demand peak.

RTE displays in the web page, one version of the margins calculated in D-1 and 3 versions of the actualized intraday margins based on the best hypothesis at our disposal for the morning and/or evening peak. An historic of these values can also be downloaded in this web page.

The shape of the consumption curve evolves during the year: in summer there is no consumption peak in the evening, the related margin is therefore no longer calculated.