Elia Group SA/NV · EURONEXT:ELI
Elia Group SA/NV — Technical Presentation (June 2018)
28 slides from Elia Group SA/NV's technical presentation, Jun 14, 2018
Slide 1: EU Netcode Emergency & Restoration
EU Netcode Emergency & Restoration Users group WG SO EMD – Market interactions workshop 14/06/2018
Slide 2: Agenda
1. Legal requirements 2. Market suspension and restoration rules 3. Rules for imbalance settlements during market suspension 4. Case study – From blackout to market dispatch 5. Case study – Activation of the load shedding plan NC Emergency and Restoration 2
Slide 3: Legal requirements
Legal requirements
Slide 4: Legal requirements
Legal requirements By 18 December 2018: • each TSO shall develop a proposal for rules concerning the suspension and restoration of market activities. [Art 36(1)] • each TSO shall develop a proposal for rules for imbalance settlement and settlement of balancing capacity and balancing energy which sha
Slide 5: Rules for market suspension and restoration
Rules for market suspension and restoration
Slide 6: E&R - Whereas (9)
E&R - Whereas (9) TSOs should ensure the continuity of energy transactions during emergency, blackout or restoration state and only suspend market activities and market's accompanying processes as a last resort.
Slide 7: Art. 35.1 – Markets could be suspended when
Art. 35.1 – Markets could be suspended when A TSO may temporarily suspend one or more market activities laid down in paragraph 2 where: (a) the transmission system of the TSO is in blackout state; or (b) the TSO has exhausted all options provided by the market and the continuation of market activiti
Slide 8: Art. 35.2 – Market activities that could be suspended
Art. 35.2 – Market activities that could be suspended Art. 35.2: The following market activities may be suspended: (a) the provision of cross zonal capacity for capacity allocation on the corresponding bidding zone borders for each market time unit where it is expected that the transmission system s
Slide 9: Communication procedure
Communication procedure Article 38 of NCER: • 1. Rules for suspension and restoration of market activities shall also contain a communication procedure detailing the tasks and actions expected from each party in its different roles during the suspension and restoration of market activities. • 2. The
Slide 10: Application field of the NC ER: different operational system states
Application field of the NC ER: different operational system states • Normal activation of reserves. Criteria system states in Normal • Strategische reserve System Operation • Normal topological control actions Guidelines (SOGL) art 18 • Remedial actions to bring the system back to normal Alert • Ex
Slide 11: Interpretation of "market suspension"?
Interpretation of "market suspension" ? A clear distinction must be understood between: - Transmission system state: normal, alert, emergency, blackout, restoration - Responsibility of BRP to endeavor a balanced portfolio: active or suspended - Status of market places (e.g. Epex Spot/Nordpool platfo
Slide 12: General principles: full black-out in Belgium
General principles : full black-out in Belgium Central dispatch Day D-1 Day D Day D+1 Day D+2 ARP responsible ARP responsible • Stop publication of imbalance prices • Stop ID market
Slide 13: General principles
General principles Central dispatch Day D-1 Day D Day D+1 Day D+2 Restoration activities : BRP responsible Connect generation units BRP responsible & connect load
Slide 14: General principles
General principles Central dispatch Day Ahead Market coupling results for Day D Day D-1 Day D Day D+1 Day D+2 settlement needed for BRP imbalances due BRP responsible: to Blackout BRP responsible : Normal imbalance Normal imbalance tariff applicable tariff applicable
Slide 15: General principles
General principles Central dispatch Day Ahead Market coupling results for Day D+2 for Belgium Day D-1 Day D Day D+1 Day D+2 NO Day Ahead Market coupling results for Day D+1 for Belgium Continuity of capacity calculation processes. Possible capacities following known procedures: default values, flow
Slide 16: General principles
General principles Central dispatch • Start publication of imbalance prices • Start ID market Day D-1 Day D Day D+1 Day D+2 Decision by Elia BRP responsible BRP responsible Communication phase : From central dispatch towards normal market
Slide 17: General principles for market suspension rules (1/2)
General principles for market suspension rules (1/2) Market Putting on hold the responsibility of BRPs to suspension strive to have a balanced portfolio in real time • Keep the BRP responsibility the longest time possible as they have a positive impact on grid stability due to the financial incentiv
Slide 18: General principles for market suspension rules (2/2)
General principles for market suspension rules (2/2) Market suspension in case of: • Full blackout : No transport of electricity is possible, the markets cannot be used; BRP responsibility is put on hold • A full blackout is defined as zero voltages in the entire control area, except some small isla
Slide 19: Rules for imbalance settlement during market suspension
Rules for imbalance settlement during market suspension
Slide 20: Constraints regarding rules for imbalance settlement
Constraints regarding to rules for imbalance settlement Art. 39.3: The rules shall: (a) ensure the financial neutrality of each TSO (…) ; (b) avoid distortions of incentives or counterproductive incentives to balance responsible parties, balance service providers and TSOs; (c) incentivise balance re
Slide 21: Imbalance example: normal operation
Control area = bidding zone 180 MW BRP1 20 MW ~ ~ BRP3 100 MW 200 MW 120 MW BRP2 Exchange price for 100 MW hour h = 40€/MWh BRP 100 MW 120 MW BRP 1 PX 2 20 MW implicitly allocated on border 120 MW BRP 3 180 MW 200 MW PX = Power eXchange NC Emergency and Restoration 21
Slide 22: Imbalance example: blackout
Control area = bidding zone 180 MW BRP1 0 MW ~ ~ BRP3 0 MW Blackout 180 MW 0 MW BRP2 0 MW Long BRP 100 MW 120 MW BRP 1 PX 2 20 MW Short 0 MW BRP 3 180 MW 200 MW NC Emergency and Restoration 22
Slide 23: General principles
General principles Central dispatch Day D-1 Day D Day D+1 Day D+2 Settlement needed for BRP imbalances due BRP responsible: to Blackout BRP responsible : Normal imbalance Normal imbalance tariff applicable tariff applicable Restoration activities : Connect generation units & connect load
Slide 24: Example of imbalance settlement mechanism after blackout
Control area = bidding zone 180 MW BRP1 0 MW ~ ~ BRP3 0 MW Blackout 180 MW 0 MW BRP2 Exchange price for Example of imbalance settlement 0 MW mechanism after blackout hour h = XX€/MWh Long 100 MW 120 MW Elia settles 120 MW with BRP2 and pays BRP BRP 1 PX 2 120 MW x XX€/MWh = XX € 20 MW Elia settles 2
Slide 25: Imbalance settlement – General principles during market suspension
Imbalance settlement – General principles during market suspension A distinction is to be made between: • Imbalance tariff : Regulated tariff BRPs pay/receive depending on their short/long position during market suspension periods The “normal imbalance price” is not applicable during central dispa
Slide 26: Australian reference
Australian reference: Two price sets for producers and consumers: one Pre-calculated prices for weekday days and one for weekend days Market Market suspended restored Historical average of prices over 28 day period Possible simplifications: e.g. peak and off peak prices NC Emergency and Restoration
Slide 27: Activation of the load shedding plan – case study
Activation of the load shedding plan – case study NC Emergency and Restoration 27
Slide 28: Activation of the load shedding plan
Activation of the load shedding plan • System is in emergency state as long as frequency is outside range 49,8 – 50,2 Hz • During activation of one or more steps of the automatic load shedding plan, BRP positions might be (heavily) distorted, resulting mainly in LONG positions. Assuming incident is