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Balancing Update Stakeholder Group Meeting - 4 November 2009

Balancing Update Stakeholder Group Meeting - 4 November 2009. Experiences of Interim CBB Arrangements. More discrete pricing (6 prices) has allowed more cost reflective pricing Useful for offsetting longer runs on expensive GB BMUs particularly over demand peaks

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Balancing Update Stakeholder Group Meeting - 4 November 2009

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  1. Balancing UpdateStakeholder Group Meeting - 4 November 2009

  2. Experiences of Interim CBB Arrangements • More discrete pricing (6 prices) has allowed more cost reflective pricing • Useful for offsetting longer runs on expensive GB BMUs particularly over demand peaks • Cannot readily use for GB energy balancing as not fully integrated into dispatch tools • Active constraints on GB system potentially exacerbated • Flexibility of product i.e. windows currently allow for longer duration product and also for product shaping • NGET and RTE can indicate requirements ahead of gate closure through Early Notification Process • Greater refinement could be delivered with more pricing periods e.g. across current periods often selling and buying in different hours within the window

  3. NGET and RTE Offer Prices £/MWhe

  4. NGET and RTE Bid Prices £/MWhe

  5. NGET Offer Price and Synchronised GB Offer Price (GB gate closure)

  6. NGET Cross Border Balancing Prices vs. GB Wholesale (APX)

  7. RTE Cross Border Balancing Prices vs. France Wholesale (Powernext (EPEX))

  8. Accepted Offer Volumes by TSO by IFA Gate

  9. Accepted Bid Volumes by TSO by IFA Gate

  10. Overview of Development of Enduring Solution • Key concerns have been identified • Ramp management – some manageable solutions identified • Shaping flexibility – some manageable solutions identified • Potential problems relating to 1-hour product • UK demand/energy position can vary considerably across periods • Demand triggers frequently occur on the hour: TV Pick-Ups; demand tele-switching; price-sensitive demands; pumping deload etc • Need to minimise concurrent generation deloads or IFA ramp deloads – frequency control considerations • Longer duration products could help avoid high cost or inappropriate actions • IS issues • The enduring solution have to be fully integrated to NGET BM Systems • Twice yearly IS releases (Baselines)

  11. NGET Proposes a 2-Hour Product • In addition to 1-hour products • A 2-hour CBB product would mitigate many of the identified risks. • Overcomes the major risk of failing to secure a second hourly product on demand peaks • Reduces uncertainty associated with potential system events and secures additional time to put alternatives in place if required • Helps preserve critical STOR (short notice / short duration plant e.g. OCGTs • Can also be used to resolve ‘ramp management’ issues as part of an integral energy/system transaction

  12. Common NGET / RTE Working Programme • Revision of the target date for enduring solution to November 2010 • NGET and RTE work together to analyse in depth the possibility to secure a 2-hour product • Target : conclusion by February 2010 • Whether a solution is found, costs and planning re-evaluation will allow to define a target date for implementation, as far as possible implemented simultaneously with go-live • Both Operators are today working towards the implementation of the enduring solution for UK-FR CBB solution • Target Go live : achieving go-live in November 2010 • On the basis of the one hour duration product and the already agreed adaptations, augmented with the result of the study when available

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