WindFloat Atlantic ProjectA step change towards commercial Floating Wind

Head of Floating Windtiago.duarte@oceanwinds.comApril 6th, 2021

Agenda

2

OW

The WindFloat Atlantic Project

Conclusions

WHO WE ARE

Ocean Winds ( OW ) is the result of a Joint Venture between two of the biggest players in Energy:

o Engie, French multinational energy and services company andglobal leader of zero-carbon transition and

o EDPR, global leader in the renewable energy sector and theworld's fourth-largest wind energy producer

born to lead the Offshore Wind Energy Business.“ In an industry where size matters,

relevance is critical. Only elephants play this game. Together

we are one.”

An investment framework announced to market May 2019 with ambitious growth targets…

…paving the way for a greener future, by strengthening offshore growth, increasing efficiency and returns

OW selective investment criteria

Sound market fundamentals

Stable regulatory frameworks

Contracted NPV (i.e. cash-flows visibility)

Compliance with target risk return profile

Maximize projects self-funding

2025 E

5-7GW

5-10 GW

1.5GW

Today

4.0GW

OW Growth Targets announced

Gross MW

Operational& Under construction

Under advanceddevelopment

California (floating)

100-150 MWStatus:

DevelopmentOW Stake: 35,0%

Mayflower1.300 MW

Status: Development

OW Stake: 50,0%

WFA (floating)25 MW

Status: OperationOW Stake: 79,4%

Moray East950 MWStatus:

ConstructionOW Stake: 56,6%

Moray West800-860 MW

Status:Development

OW Stake: 100%

SeaMade487 MWStatus:

CommissioningOW Stake: 17,5%

OW will have as of inception presence in 7 countries, in which it will continue to develop current projects as well as create new growth opportunities

B&C Wind400 MWStatus:

DevelopmentOW Stake: 100%

Leucate (floating)30 MWStatus:

DevelopmentOW Stake: 80,0%

Korea FloatingWind

3x500 MWStatus:

DevelopmentOW stake: 61%

Tréport & Noirmoutier

992 MWStatus:

DevelopmentOW Stake: 60,5%

Agenda

6

OW

The WindFloat Atlantic Project

Conclusions

Agenda

TOTAL INVESTMENT ~120 M€ 25 YEARS OF OPERATION FABRICATION STARTED IN Q1 2018 OFFSHORE INSTALLATION AND COMISSIONING

COMPLETED IN Q2 2020 OPERATION & MAINTENANCE BASE IN VIANA DO

CASTELO

WindFloat Atlantic Project

LOCATION20Km of the coast of Viana do Castelo, in ~100m water depth, in aarea of sand and sediments, suitable for mooring

TECHNOLOGY3 wind turbines of 8.4 MW eachFloating Platforms66kV Dynamic cables for the collecting system

INTERCONNECTIONConstructed by PT TSO allowing a direct connection at 60kV to anexisting onshore substation operated by DSO EDPD

FINANCINGEIB: 60 M€EU FUNDING - NER300 18 M€PT Fundo Ambiental 6 M€

Fact Sheet

- 79% ~20% ~1%

Windfloat Atlantic Project7 Main Contractors giving us a multi-contract experience

Wind Farm Configuration

150kV, 3x1000mm2 Static cable66kV, 3x150mm2 Dynamic cable Dry-Mate Connector

DBM

Bend-Stiffener

Touch down Protection

Lazy-wave configuration

Wind Farm and Inter-array Cable Installation

11

Turbine Installation Onshore

Towing

Hook-up

Cable Installation

Floating wind farm – New requirements for Inter-array cable system

12

Mooring Line Failure Tow to Port Strategy

If a three mooring line system is required, the mooringline failure case needs to be accommodated by theplatform and cable connection systems.

To enable a tow-to-port strategy, a solution needs to beemployed to keep the cable system connected, allowing forquick connection / disconnection and reliability.

Agenda

13

OW

The WindFloat Atlantic Project

Conclusions

Agenda

Conclusions and take-aways

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• 66kV cable technology and dynamic cable design has mature inthe last years and were demonstrated on the WindFloat AtlanticProject;

• Floating wind farms require a new interface between foundationand mooring designer, cable and hardware supplier and offshorecontractor. The allocation of each scope of work and the use of amulti-contract approach require skills and resources tomanage;

• The construction program brings the IAC cable installation andtermination towards the critical path. Optimizing the installationprocess and the cable termination is key to achieve first powerquickly. Furthermore, installation process needs to be inline withthe floater and turbine installation rates.

• The lessons learned and experience from the WindFloat Atlanticproject will be transferred for the future commercial projects ofOW around the world.

Tiago DuarteHead of Floating Wind

tiago.duarte@oceanwinds.comThank you!