Key Economic Terms

Under the Electricity Regional Initiative France-UK-Ireland, RTE and National Grid, the UK Transmission System Operator, have developed a project to achieve the exchange of balancing services on the IFA interconnector.

The enduring phase of this project has been operational since December 1, 2010.

The settlement of the offers submitted and activated by RTE is described in Section 1 of the Rules relative to Programming, the Balancing Mechanism and the Balance Responsible Entity System.

Principle of TSO to TSO exchanges

Every hour, RTE and National Grid send their respective offers for the next hour. Each offer is a 50MW hourly block combined with a price in €/MWh and a direction (upward / downward). In each direction, RTE and National Grid may submit up to ten offers representing a total capacity of 500MW, provided that their own system is secured and that the interconnection capacity between France and the United Kingdom allows it.

Offers activated by RTE

Data related to the offers activated by RTE

Offers submitted by RTE

Every hour, for each direction , RTE draws up a capacty/price curve based on the offers from the Balancing Mechanism available for the next hour and respecting the adequate usage conditions. RTE generates its offers with the volumes available beyond its own needs, up to ten offers in each direction.

Pricing methodology for RTE’s offers

Each offer is given the price of the last offer from the capacity/price curve used to build the 50MW block