Elia Group SA/NV · EURONEXT:ELI
Elia Group SA/NV — Technical Presentation (January 2021)
35 slides from Elia Group SA/NV's technical presentation, Jan 8, 2021
Slide 1: TF CRM #21
TF CRM #21 8 January 2021
Slide 2: Agenda
Agenda Welcome Minutes of Meeting TF CRM #20 [Design] 11.12.2020 Elia – Additional explanations on derating factors (Rafael Feito-Kiczak) Next meetings TF CRM #21 - Agenda 2
Slide 3: Additional explanations on derating factors
Additional explanations on derating factors Rafael Feito-Kiczak 3
Slide 4: Background and context
Background and context • During the last TF CRM, several questions/remarks were raised concerning the derating factors for energy limited technologies • In order to better understand the results, this additional TF was set-up • The goal of this presentation is to explain how the derating factors are
Slide 5: Agenda
Agenda • Recap of scenario & methodology context • Didactic example on how derating factors are calculated • Share of energy limited technologies in Belgium and other countries • Similar observations in other countries/zones (IE/GB) • What if derating factors would be artificially increased ? 5
Slide 6: Recap of scenario & methodology context
Recap of scenario & methodology context
Slide 7: CRM reference scenario approved by the Minister in summer 2020
The scenario on which all the CRM auction parameters/input data were calculated is the one approved by the Minister during summer 2020 Reference scenario selection Reference Selection of the scenario’s reference scenario proposal from by the Minister CREG Scenario and sensitivities proposals made by
Slide 8: Derating factors calculated from scarcity periods of hourly market simulation
Derating factors are calculated based on the scarcity periods which are an outcome of an hourly simulation of the European electricity market such as defined in the proposed Royal Decree describing the methodology • The simulation is based on the CRM reference scenario as approved by the Minister •
Slide 9: Key take aways
Key take aways The scenario used for the calculations is the one retained by the Minister. Indeed, Elia has used the same scenario for all its calculations, i.e. the scenario being calibrated to the desired reliability standard. This ensures that all parameters remain a single coherent set. Elia ful
Slide 10: Didactic example
lia Didactic example
Slide 11: Let's assume a simple example
Let’s assume a simple example – Consumption over a day to be covered in a fictive zone – Different generation mixes will be applied to ensure security of supply (no outages but energy limitations will be taken into account) – The share of energy limited technologies will vary between the different s
Slide 12: Power system with only non-energy-limited capacities
Power system with only non-energy-limited capacities ENS 13 GW 12 GW Demand Installed capacity Installed capacity/peak load ratio Derating factor 12 GW of non-energy-limited capacity 12/13 = 92% 100% SUM = 12/13 = 92% 12 No outages assumed for all capacities Final volume contracted in CRM = 100% * 1
Slide 13: Adding a little amount of energy limited capacities (SLA type)
Adding a little amount of energy limited capacities (SLA type) ENS 13 GW 12 GW 11 GW Installed capacity Installed capacity/peak load ratio Derating factor 11 GW of non-energy-limited capacity 11/13 = 85% 100% 2x1 GW of SLA 1h 2/13 = 15% 50% SUM = 13/13 = 100% 13 No outages assumed for all capacities
Slide 14: Adding a larger amount of energy limited capacities
Adding a larger amount of energy limited capacities ENS 13 GW 12 GW 11 GW 10 GW Installed capacity Installed capacity/peak load ratio Derating factor 10 GW of non-energy-limited capacity 10/13 = 77% 100% 6x1 GW of SLA 1h 6/13 = 46% 33% SUM = 16/13 = 123% 14 No outages assumed for all capacities Fina
Slide 15: Further increasing...
Further increasing... ENS 13 GW 12 GW 11 GW 10 GW 9 GW Installed capacity Installed capacity/peak load ratio Derating factor 9 GW of non-energy-limited capacity 9/13 = 69% 100% 13x1 GW of SLA 1h 13/13 = 100% 23% SUM = 22/13 = 169% 15 No outages assumed for all capacities Final volume contracted in C
Slide 16: Non-energy-limited capacities and storage: small amount of storage
Power system with non-energy-limited capacities and storage Adding a small amount of storage to the system ENS 13 GW 12 GW 11 GW Installed capacity Installed capacity/peak load ratio Derating factor 11 GW of non-energy-limited capacity 11/13 = 85% 100% 2x1 GW of storage 1h 2/13 = 15% 50% SUM = 13/13
Slide 17: Non-energy-limited capacities and storage: adding storage
Power system with non-energy-limited capacities and storage Adding a small amount of storage to the system ENS 13 GW 12 GW 2 4 11 GW 1 1 3 5 10 GW 1 Installed capacity Installed capacity/peak load ratio Derating factor 10 GW of non-energy-limited capacity 10/13 = 77% 100% 5x1 GW of storage SLA 1h 5/
Slide 18: Non-energy-limited capacities and storage: even larger amount of storage
Power system with non-energy-limited capacities and storage Adding an even larger amount of storage to the system ENS 13 GW 12 GW 11 GW 10 GW 9 GW Installed capacity Installed capacity/peak load ratio Derating factor 9 GW of non-energy-limited capacity 9/13 = 69% 100% 13x1 GW of storage SLA 1h 13/13
Slide 19: Storage/DSR: small amount of storage and DSR
Power system with non-energy-limited capacities and storage/DSR Adding a small amount of storage & DSR to the system ENS 13 GW 12 GW 11 GW Installed capacity Installed capacity/peak load ratio Derating factor 11 GW of non-energy-limited capacity 11/13 = 85% 100% 1x1 GW of storage SLA 1h 1/13 = 8% 50
Slide 20: Storage/DSR: larger amount of storage and DSR
Power system with non-energy-limited capacities and storage/DSR Adding a larger amount of storage & DSR to the system ENS 13 GW 12 GW 2 1 11 GW 1 1 3 2 10 GW 1 Installed capacity Installed capacity/peak load ratio Derating factor 10 GW of non-energy-limited capacity 10/13 = 77% 100% 3x1 GW of storag
Slide 21: Storage/DSR: even larger amount of storage and DSR
Power system with non-energy-limited capacities and storage/DSR Adding an even larger amount of storage & DSR to the system *Note that in the optimization, storage or SLA could be providing energy during ENS moments, in this example storage would be first dispatched, but this is not always the case
Slide 22: Key take aways on share of energy limited technologies and deratings
Key take aways on the share of energy limited technologies and the impact on the derating factors – The deratings of energy limited technologies are lower when increasing their proportion in the system/country. – Indeed, with large shares of such technologies, their contribution is not only seen dur
Slide 23: System with different storage round trip efficiencies and SLA
System with 2 different storage round trip efficiencies and SLA ENS 13 GW 12 GW 11 GW 90% 10 GW 90% 75% 75% 90% 90% 9 GW 90% 90% Installed capacity Installed capacity/peak load ratio Derating factor 9 GW of non-energy-limited capacity 9/13 = 69% 100% 90% 2x1 GW of storage 1h – 90% 2/13 = 15% 25% 75%
Slide 24: Storage versus SLA and round trip efficiency in the model
Storage versus SLA and round trip efficiency: what is the difference in the model ? • Storage could have lower derating than a SLA (as it will be most probably used more outside of scarcity) or higher deratings then SLAs (if multiple scarcity per day and enough margin between both events to ‘recharg
Slide 25: Assumptions taken for PSP units
Assumptions taken for PSP units • The derating is given for the PSP units without distinction between Coo or Plate Taille. • The ‘amount of hours’ at full capacity assumed was around 4 hours being the division between: - Total reservoir for economic dispatch: 5700 MWh - Total capacity for economic d
Slide 26: Share of energy limited resources in Belgium compared to other countries
What is the share of energy limited resources in Belgium compared to other countries ?
Slide 27: Belgian proportion of energy limited technologies is highest in CRM countries
Belgian proportion of energy limited technologies is the highest in countries with a CRM Belgium has the highest share of energy limited resources when comparing it to other countries with a CRM and this will further increase according to the CRM reference scenario (30% in 2025 versus <10% in FR, GB
Slide 28: Impact of energy limited share on deratings in other countries
How does the share of energy limited technologies impact the deratings in other countries ?
Slide 29: SoS contribution of energy limited technologies decreases with penetration (1/2)
SoS contribution of energy limited technologies decreases with the penetration of those technologies (1/2) • The graph shows the evolution of deratings for storage technologies: • from 0 GW installed (0% penetration) Derating factor • to 5 GW installed (8% penetration) • The storage deratings decrea
Slide 30: SoS contribution of energy limited technologies decreases with penetration (2/2)
SoS contribution of energy limited technologies decreases with the penetration of those technologies (2/2) • The graph shows the evolution of deratings for storage technologies: • from 0 MW installed (0% penetration) • to 200 MW installed (2-3% penetration) • The derating factors decrease by 5 to 10
Slide 31: Key take aways
Key take aways • The trend (i.e. the higher the share of energy limited resources, the lower the derating factor) is also confirmed (already with significant smaller proportions) in other countries/zones like IE or GB • It can be observed that the drop in derating factors can be important (about -20
Slide 32: The contribution to security of supply should not be artificially increased
The contribution to security of supply should not be artificially increased.
Slide 33: What if derating factors would be 'artificially' increased?
What if derating factors would be ‘artificially’ increased ? The whole methodology is built around a global equilibrium being that: - the sum of derated installed capacities assumed in the reference scenario; and - the average load during scarcity (increased by the balancing requirements and decreas
Slide 34: Next meetings
Next meetings
Slide 35: Next meetings
Next meetings TF CRM #22 : Tuesday 19 January 2021 TF CRM #23 : Tuesday 2 March 2021 TF CRM #24 : Thursday 1 April 2021 TF CRM #25 : Tuesday 20 April 2021 TF CRM #26 : Friday 21 May 2021 TF CRM #27 : Friday 11 June 2021 TF CRM #28 : Tuesday 29 June 2021 TF CRM #29 : Friday 3 September 2021 TF CRM #3