Le cluster TWEED a eu le plaisir de vous proposer un webinaire dédié aux stockage et la flexibilité de l'énergie, en analysant deux projets aboutis : Estor-Lux et PEPS. Le premier, Estor-Lux, est le fruit d'un modèle technico-économique novateur pour le stockage de l'électricité à grande échelle permettant d'offrir des services de stabilité au réseau, tandis que le second, le projet PEPS, représente un concept innovant de mini stockage électrique par pompage/turbinage.

1. Gros titre
Sous-titre
Cluster TWeeD -- 2021
1

2. Cluster TWeeD -- 2021
2
Scope
Mapping Stockage
Répondants
PME
Grande entreprise
Université
Association
Centre de recherce
Autre
Haute école
Fédération
73
SWOT analysis
Prévisions emploi
Acteurs wallons
Stockage
ACIT
CECOTEPE
CITIZEN’S
RESERVE
COMPAGNONS
ENERGIES
RENOUVELABLES
ENERGY4ME
HARMELING
HENNALUX
KESSLER MIDEO
SINK FLOAT
SOLUTIONS

3. Cluster TWeeD -- 2021
3
Stockage
L'objectif de TWEED sur ce volet Stockage sont :
• Création d’une roadmap stockage pour la Wallonie, à l’instar de la roadmap
réalisée pour la filière hydrogène
• L’animation de GT spécifiques (stockage et flexibilité, stockage hydrogène,
développement de capacités de stockage, transports, …)
• Le soutien au montage et suivi de projets industriels et de R&D
• Stimuler les synergies entre acteurs / projets / plans : fonds Feder, lien EU,
plan de relance,…
• Création d’un centre R&D virtuel rassemblant les infrastructures wallonnes lié
au stockage, de manière similaire au centre virtuel d’EnergyVille

4. Applications Stockage
Cluster TWeeD -- 2021
4
Stockage
4
Ex :
Virtual
Power
Plant

5. Titre
Scope

6. Titre
Scope

7. Titre
Scope

8. Cluster TWEED
Rue Natalis 2 • 4020 Liège • Belgique
Contact : Cédric Brüll • Director • cbrull@clustertweed.be
www.clustertweed.be

9. | Page 1
&
ESTOR-LUX 10MW/20MWh
battery park in Bastogne
Lessons learnt and opportunities for
Batteries on industrial premises
Cluster TWEED - 15 June 2021

10. CentricaBusinessSolutions
CentricaBusinessSolutions

11. CentricaBusinessSolutions
CentricaBusinessSolutions
We support our client in
their energy transition
objectives enabling them
to makeeconomically and
environmentally balanced
decisionsaroundfuture
energytechnology
Present technologies
Legend 1–4 year technologies 5–9 year technologies

12. | Page 4
SRIW-Environnement
• SRIW-Environnement
• Investment vehicle of the Walloon
Region in the environment and
energy sector
• Twofold axes in the energy sector:
• Services and technology companies
• Energy infrastructures:
• Financing and ownership of assets using
mature technologies
• Development, financing, ownership and
operation of innovative energy assets
(Storage, Energy communities, smart
grid…)
75,75%
20,00%
4,25%

13. | Page 5
RAP-Green
• RAP-Green
• Created in 2006
• Rent-A-Port:
• Development of port facilities & industrial
“as a service”
• Large industrial zones projects in Viet Nam
(4500 ha) and Oman (900 ha + port
operation)
• Rent-A-Port (Green) Energy
• Offshore wind concessions
(~GW pipeline co-originated)
• Development, financing, ownership and
operation of innovative energy assets
(energy atolls, pumped hydro, plugs at sea,
waste-to-power and corporate PPA driven RES)
• In 2019: entry Bruno Vanderschueren in the
capital, focus on batteries in BE  CWE

14. | Page 6
• It is technologically perfectly feasible to
“store electricity” through conversion to
electro-mechanical energy.
• Li-ion technology enables storage for
typical power between 1 kw and 1 GW,
typically capacity of 30 min to 12h, and
within day/week storage duration
• It provides for an economically viable
alternative to fossil generators:
• For time-shifting wind/solar on small/isolated
systems
• For balancing the grid on larger systems
Myth-busting electricity storage

15. | Page 7
ESTOR-LUX Project

16. | Page 8
• Initial project in Bastogne industrial park:
• Financial close October 2020, operational by June 2021 (~3 year development)
• 10 MW / 20 MWh
• Novel aspects
• No subsidy, no long term TSO contract
• Non recourse-financed
• Longer storage duration than
most projects in the EU
• Unique positioning on energy
intensive services
• Largest project (MWh) in the Benelux
• First project on Belgian HV grid
• First Fluence Gridstack project
in continental EU
ESTOR-LUX Project

17. | Page 9
• ESTOR-LUX credo:
• Battery storage has hit “grid parity” on intraday flexibility markets and can be
developed without public support on those markets to provide a necessary
alternative to thermal generators to stabilize the grid.
• With increasing share of renewables and decreasing battery costs, batteries
will hit parity on day-ahead flexibility markets and provide a necessary
alternative to thermal generators for peak, then base-load supply
• ESTOR-LUX Ambition :
• Establish and demonstrate a viable technical-economic-financial model for
front-of-meter, merchant battery storage development
• Replicate and scale up the model to unleash the potential from battery storage
to support a successful and affordable energy transition in Belgium
ESTOR-LUX Project

18. | Page 10
ESTOR-LUX Project

19. | Page 11
Next frontiers
70 - 100 MW closed by 2023
* 2/3 front-of-meter
* 1/3 behind the meter
Ready for multi 100 MWh
projects by 2024-2025
(halfway towards 50% RES)
• Target: two steps approach

20. | Page 12
Next Steps
Feasibility & Sizing
EPC & O&M
procurement
Revenue &
Financing
structuration
Constr., Ops. &
asset lifetime
mgmt
Value sourcing, structuring and stacking, both
front and behind the meter
Asset design, supply and O&M procurement,
demand syndication & credit towards suppliers
Management of the contractual puzzle:
• Closing the iterative loop
• Appropriate risk allocation
• Independence
Feasibility enhancing financing solutions:
• Debt gearing maximization
• Willingness to take merchant risk
• Equity with adequate payback expectations
• Financing as ESCO model
Value proposition: battery storage offered « as a Service »

21. | Page 13
• Battery options that do not create value
• Time-shifting PV or wind injection
• Time shifting off-take
• Reserves/arbitrage on intraday/imbalance when full grid fees apply to off-take
Creating value with storage @ C&I premises

22. | Page 14
• Battery options that do create value
• Maximize self-consumption of locally produced / corporate PPA sourced
wind & solar (40-50% realistically feasible with battery)
• Avoid cost increase sourcing of residual consumption due to profile risk
(spot and imbalance)
• “Smart” reserve/intraday arbitrage delivery to avoid excessive grid fees
• Secondary value creation
• Peak shaving residual profile
• Peak shaving/smart, local & green electricity sourcing for EV-chargers
• Uninterrupted power supply, power quality, reactive compensation
Creating value with storage @ C&I premises

23. CentricaBusinessSolutions
Strictly confidential
Flexible
energy
Aggregated
flexible energy
Extra EBITDA Payments
Less CO2 No black outs
C&I consumers / Battery owner ELIA Reserves
Society
Steering a battery, Centrica Belgium will share flexibility revenues with the battery owner
VPP of Industrial flex & Batteries

24. CentricaBusinessSolutions
CentricaBusinessSolutions 16
As a Balancing Service Provider (BSP) for Elia, Centrica operate a real-time multimarket
optimisation of these assets over electricity markets & Elia Demand/Response Programs
R1: primary reserve
(Frequency Containment
Reserve)
R2: secondary reserve
(automatic Frequency
Restoration Reserve aFRR)
R3: Tertiary reserve
(manual Frequency Restoration
Reserve mFRR)
Strategic Reserves &
CRM
50.0 Hz
50.2 Hz
Electricity generation Electricity demand
49.8 Hz
European largest VPP with
2.3 GW+ of peak capacity
Consistently meeting
commitments to utilities with
99.5% reliability
200 commercial and
industrialcustomers across
industries
*BSP: Balancing Service Provider

25. CentricaBusinessSolutions 17
Added-value of Centrica as a “battery optimizer”
Minimizing penalty risk while maximizing revenue via pooling (VPP)
1
2 BE capability to source “supporting assets” to the battery (C&I portfolio)
3 100% BE Based trading desk of 5 expert traders anticipating market changes
4 ‘Self-Learning” algorithm: available track record of BE-steered battery

26. CONFIDENTIAL
RESTRICTED
PUBLIC INTERNAL
15/06/2021
1

27. PUBLIC
17
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage
Pourquoi du stockage hydroèlectrique ?
1 à 10 MWh
Impact environnemental
Valorisation de sites
industriels
Critère de sélection
Δh > 50 m
Box “standardisée”
(<1M€/MWh)
Réservoir
~30 000 m³
Robuste
Longévité > 50 ans
avec
Intégration Standardisation
La puissance de l'eau pour un avenir plus vert

28. PUBLIC
Objectifs : économiquement compétitif
➢ Brique technologique innovante
➢ Opération et maintenance 4.0
➢ Exploitation dynamique Stockage/REN/Réseau via un EMS
Pilote :
⚫ Stockage PEPS 1MW + PV sur site
⚫ Site : Carrière en activité
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

29. PUBLIC
19
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage
Tractebel
ENGIE
Sun4Business
Finance/PV
SPV
PEPS
Customer
Lepage I-Care
Région
Wallonne
Pôle compétitivité :
Mecatech
Consortium RW
Subside
COOPILOTE
Coordinateur / Design
Assemblage
éléctromécanique
Maintenance 4.0

30. PUBLIC
Equipements divisés en 2 catégories :
⚫ Equipements standards :
• Turbine
• Alternateur
• Pompe
• Vantellerie
• Contrôle commande
⚫ Equipements spécifiques :
• GC
• Chemin d’eau (conduite forcée, prises d’eau, …)
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

31. PUBLIC
Turbine + pompe
⚫ 1 Turbine 1MW
⚫ 1 Pompe 1 MW + VFD
➢ Contrôle commande plus compliqué
➢ Maintenance simplifiée ( + standard)
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19
600m
4 m
4 m

32. PUBLIC
⚫ Stockage PEPS : 1MW / ~ 4MWh
⚫ PV : ~ 6.5 MWc
⚫ Niveau du bassin sup (BS) : 168 m
⚫ Niveau du bassin inf (BI) : 110 m
⚫ Conduite forcée (CF) : ~ 600 m
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19
PV
PV

33. PUBLIC
⚫ Limiter utilisation du réseau → Puissance utilisable = Surplus PV
⚫ Puissance pompe : 𝑃𝑢=𝐻𝑀𝑇×𝑄×𝜌×9,81
➢ Pour une puissance d’environ 1MW → 𝑄 = 5400 m³/h
⚫ Choix d’une pompe simple étage à joint axial
⚫ Puissance PV variable : ajout d’un VFD
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

34. PUBLIC
⚫ Puissance : 1,18 MW
⚫ Productible moyen : ~ 1,1 MWh
⚫ Débit : 2,22 m³/s
➢ Choix d’une turbine Francis
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

35. PUBLIC
⚫ Simulation NOVO PRO - Puissance PV consommée par la pompe :
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

36. PUBLIC
⚫ Simulation NOVO PRO – Bilan :
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19
→ ~ 65% PV autoconsommé
(43% sans PEPS)

37. PUBLIC
INTERNAL
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

38. PUBLIC
⚫ Choix d’une conduite en PRV (Polyester Renforcé de fibres de Verre)
➢ Leger
➢ Installation par emboitement
➢ Résistant à la corrosion et aux UV
➢ Pression admissible suffisante : PN 10
➢ Nécessite un grand nombre de support (pilote : ± 50)
➢ Diamètre : 1200 mm
⚫ Alternative : Acier
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

39. PUBLIC
⚫ Relie :
• Usine PEPS
• Centre photovoltaïque
• Consommation du client
• Interconnexion réseau public (15 kV de l’AIEG)
⚫ Fonctions :
• Gestion en temps réel
• Prévision
• Archivage
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

40. PUBLIC
⚫ Défi majeur : rentabilité économique
➢ Réduction du CAPEX
➢ Réduction OPEX
➢ Réduction risque financier (petites puissances, technologies éprouvées)
⚫ Optimisation des revenus :
➢ Autoconsommation PV/stockage « behind the meter »
➢ Gestion temps réel grâce à l’EMS
➢ Option : Services auxiliaires
⚫ Rendement : ~ 69% sur l’ensemble du cycle
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

41. PUBLIC
⚫ Dénivelé de min 50 m
⚫ Surfaces disponibles et suffisantes pour les bassins ET le PV
⚫ Distance entre les bassins
⚫ Distance entre l’usine PEPS et la zone PV
⚫ Distance entre l’usine PEPS et le point de connexion réseau
⚫ Autoconsommation sur site suffisante (min 15 ans)
⚫ Profil de consommation du client
⚫ Capacité du réseau au point de raccordement
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 19

42. Q & A time
15/06/2021 PEPS - Cluster TWEED - Innovative solution of small pumped hydro storage 17