France, UK, Ireland Regional InitiativeStakeholders Meeting

3rd December 2008

Nick FullertonSONI Commercial Manager

Areas of presentation:-

• SONI Interconnector Roles• Interconnector Administrator

Responsibilities• Access to the Moyle Interconnector

SONI Interconnector Roles

SONI wear quite a number of ‘hats’ in relation to the Moyle Interconnector:-

1. System Operator & Operational Agent – managing all aspects of the Moyle Interconnector operation including capacity auctioning, scheduling, agreeing the ATC, real-time operation and System Operator Trading

2. Externally Interconnected System Operator (EISO) in the GB BETTA market

3. Interconnector Administrator (IA) and Interconnector Error Administrator (IEA) in the GB BETTA Market

4. IA in the SEM5. Meter Data Provider (MDP) in SEM

Interconnector Administrator Responsibilities

1. In both SEM & BETTA the IA is responsible for the management of the ‘error account’ (the difference between the total of the calculated interconnector energy and the actual metered)

2. Auctioning capacity on behalf of Moyle3. Calculation of the ‘Modified Interconnector Unit Nominations’

in SEM. (Taking into account ramping/deadbands etc)4. Calculating and sending the active capacity holdings to SEM.5. Submission of the ‘Physical Notifications’ (PNs) in BETTA. 6. Informing the System Operators of the interconnector schedule7. Sending and agreeing System Operator trade volumes.8. Settling the finances!

IA RESPONSIBILITIES – Basic data flows

MITS(‘Trading’ System)

Nominations‘P/Q pairs’

Interconnector (modified) Unit NominationsATCSO Trades

OperationalSystemsSchedule

Trading volumesPN’sSchedule

Access to up-to-date positionsLive notification of ATC changes

Nominations to BETTA (may be through another party)GB settlement

SEM BETTA

Interconnector users

SEM Interconnector Forum

Access to the Moyle Interconnector

In the GB BETTA Market Interconnector Users must:-

• Have acceded to the UK Balancing & Settlement Code (BSC)• Signed the Connection & Use of System code (CUSC) if required.• Registered for interconnector ‘BM Units’

In the SEM Market Interconnector Users must:-

• Be a Party to the Trading & settlement Code (TSC) and be bound by Agreed Procedure 2

• Have Registered an Interconnector Unit

SEM Interconnector Forum

Access to the Moyle Interconnector

To have access to the Moyle Interconnector Users must additionally:

• Have signed a Moyle Interconnector Framework Agreement with Moyle Interconnector Limited

• Be bound by the Moyle Interconnector Procedures (BETTA side procedures required by the IA)

• Have signed a Moyle Interconnector Framework Deed with SONI

• Have completed registration for access to the Moyle Interconnector Trading System (MITS)

• Have signed a TUoS Agreement if required and have the necessary security requirements in place.

Access to the Moyle Interconnector

Moyle Interconnector Capacity

Framework Agreement

MoyleInterconnector

FrameworkDeed

MoyleInterconnector

Procedures

InterconnectorUsers

SEM

Trading &Settlement Code (TSC)

Agreed Procedures

BETTA

Balancing &Settlement Code (BSC)

Connection & Use of System Code (CUSC)

Operation Agency AgreementCollection Agency Agreement