Next-generation cable-lay vessels and technology6 September 2021 • 09:00-09:45 BST

#offshoreenergy

Part ofOffshore EnergyWebinar Week6-10 September 2021

Sponsored by

Panellist documentsPage 2: Gavin Rippe, MAATS TechPage 7: Bjørn Ladegård, NexansPage 13: Hakan Ozmen, Prysmian Group

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Bigger Cable Lay Projects• Longer ‘intercontinental’ lay distances• Deeper water - top tensions to 100t+

Nexans Aurora• Recently launched• 75t top tension; Ø10m capstan• 10,000t payload capacity; 200+km• Intelligent control system

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Advances on Inter Array CLV Technology

Van Oord ‘CLV 3’

• State of the art Inter Array CLV: launch 2023: succeeds Nexus

• 12 months concept design : Van Oord experience

• 2 carousels total 8,000t : innovative space payload utilisation

• The largest IAC vessel to date, HVDC capable

• Intelligent control system: speed, reliability, safety

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Floating Wind

• Very early stage - conceptual• Consensus is will be more prolific then fixed• Deepwater regions; Japan, Korea, Pacific

Challenges – Cable Lay

• Dynamic cables• Bouyancy modules, rigid connectors, joints

❖ Do not lend themselves to horizontal lay over chute• Mooring chain

❖ Significant quantities, more than FPSO project

• Can it be as efficient as fixed bottom installation?

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FRONT END DECK LAYOUTConcept Design Service

Assess the viability of your project and address any areas of technical uncertainty.

MAATS Support:• Advisory on array, interconnector, trencher equipment• Market analysis; competitive design• The latest trends, advances, and innovation• Budgets and stability data• Equipment and cable capability • Electrical analysis

B&T Northern

Next-generation cable-lay vessels and technology

Offshore Energy Webinar 6.9.2021

Bjørn Ladegård, VP Installation and Services

Bjorn.ladegard@nexans.com

222021 - Business GroupStrictly confidential

Main Capacities of next generation cablevessels – Deep vs Shallow water operations

P R O D U C T &

P R O J E C T

D R I V E R S• Dual turntable and

laying lines for

bundled DC

applications

• High capacity

payload

• Deepwater laying

and repairability

• Increased operability

/ Weather limits

• Large volume

turntable for bulky 3-

core cables

• High capacity

payload

• Shallow water

capabilites

• Integrated landfall

operations

EXPORT CABLES &

HVAC INTERCONNECTORS &

HVDC CABLES

INTEGRATED CABLE DESIGN AND INSTALLATION OPERATONS

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Date

3 I

Aurora : Integrated cable design and installation operations

Designed with 70 years experience in

installation of submarine power cables

Issue:

• High tensile load → high friction forces

• Tension + Bending + friction →poor combination for cable internals

• Worse for single core cables →typically in deepwaterapplications.

Solutions:

• 75 ton cable capstan OD 10m

• Ø10m overboarding wheels, 75t capacity, instrumented for load readout.

• 75t Active heave compensated constant tension winches

4 I

Aurora : Deepwater

Aurora: Landfall operations

Issues:

• Main risk driver → for cable, schedule, permits

• Shallow Seabed topography → long pull-in operations

• Through HDD → added complexity

• Weather sensitive → short and efficient operations

Solution:

• 5,5m draft → 7,5m water depth

• 8 x Integrated high capacity workboats

• Cradle and launch systems

• Dedicated float handling system with man riding baskets.

6 I

Next-Generation

Cable-lay Vessels

and Technology Milan – 6th September, 2021

Energy Transition | Offshore Wind Success Story

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MARKET EVOLUTION: THE LONG TERM PERSPECTIVE PRYSMIAN A CLEAR BENEFICIARY AND ENABLER OF ENERGY TRANSITION

As the cost of offshore wind has declined, installations have soared

2 4 7 1219

2745

77

113

150

207

151144

122

8673

6253

51 50 48 46

2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2030

Global installed capacity Offshore wind LCOE in Europe (€/MWh)

Offshore wind: Global installed capacity (GW, navy bars) vs LCOE in Europe (€/MWh)

Source: Goldman Sachs Global Investment Research, IRENA

From GW installed to € million cable value

INSTALLATION

15-20%

TURBINE

30-40%

TRANSMISSION &

INTER-ARRAY CABLING

20-30%

FOUNDATION

20-25% Prysmian Market

1 GW OF OFFSHORE WIND REQUIRES:

o Submarine Transmission cable (AC or DC)

o Land Transmission Cable (AC or DC)

o Inter-Array cables (MV 33 or 66kV)

o Installation for all

FACTORS THAT INCREASE CABLE MARKET:

o Distance from shore

o German legislation

Approx. value

for all these items

on average

300 € million

per Gigawatt

Indicative shares

of capital cost

by component

Split based

on historical figures

and projecting

the cost per GW

IEA ESTIMATE 1,3 TRILLION EURO TO BE INVESTED IN OFFSHORE WIND

from 2020 to 2040, implying 250 billion euro in cabling in the same period

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2

3

Energy Transition | Prysmian’s Advantages

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Champion in the energy transition

LONGER CABLE CONNECTIONS

able to cover >200 km length to serve

ultra long interconnections

HIGHER DEPTS UP TO 3000m

thanks the combination of new

cable technology (synthetic armour which

is 30% lighter) & new state of the art cable

laying vessel Leonardo da Vinci

HIGHER POWER TRANSMITTED

with voltage up to 525 kV to enable more

efficient, reliable and eco-friendly

power transmission over long distances

INNOVATIVE & ECO FRIENDLY MATERIALS

like P-Laser, the first 100% recyclable,

eco-sustainable and high-performance cable

technology

o ±525 kV high power cable systems designed at a higher

voltage level and with large conductor cross-sections to

provide optimal technical solutions for long distance

o 66 kV cable system allows developers to reduce capital

expenditure by up to 15%

o Dynamic Cables for floating offshore application which

have an enhanced ability to withstand mechanical fatigue over

the entire expected life of a system

o Aramidic Armour which is 30% lighter than steel

ADVANCED TECHNICAL SOLUTIONto cover all ranges of applications, such as:

Impressive track record in submarine cables all over the world: HV interconnection (AC/DC), export and inter-array application

4 cable-laying vessels among our strategic assets: Giulio Verne, Cable Enterprise, Ulisse & Leonardo da Vinci

Widest range of high-tech installation capabilities and burial tools in the global market – from shallow to deep water

Complete control over the entire supply chain

from design, manufacturing, installation to testing,

monitoring and maintenance.

HIGH VALUE-ADDED SERVICES

for the installation of submarine

power connections both between grids

and for offshore wind farms

Burial tool

LDV Focus

on Export

Energy Transition | Offshore Wind – Prysmian Integrated Solution

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LEONARDO DA VINCI CABLE ENTERPRISE GIULIO VERNE ULISSE NEW SHALLOW WATER BARGE

LOAD CAPACITY 17,000 tons 7,300 tons 7,000 tons 7,000 tonsDesigned to approach nearshore

very-shallow water applicationsTRACK RECORD

Ongoing Operations on first project:

Viking Link

Extensive Track Record

on a variety of diverse subsea projects

Up to 3,000m water depth with a 90 days operation endurance.

Innovating in a Rapidly Changing World | Enabling Energy Transition

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Leonardo da Vinci | the most advanced and eco-friendly cable-laying vessel in the world

Offshore Wind | Recent Milestone Projects

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GRUISSANFLOATING WIND FARM

FOLLOWING THE KINCARDINE AND PROVENCE GRAND LARGE

PROJECTS, PRYSMIAN FURTHER CONSOLIDATES ITS POSITION

IN THE FLOATING OFFSHORE WIND MARKET,

by providing one 66 kV EPR three-core export submarine cable

for a total of 25 km and attached another 66 kV EPR submarine

dynamic cable for about 1 km connecting the shore to a floating

sub-station and additional 3 km of land cable 66 kV XLPE.

Sofia Project involves more than 440 km of ±320 kV

submarine HVDC export cables with XLPE insulation,

and 15 km of ±320 kV land cables with P-Laser.

IT WILL BE THE FIRST OFFSHORE WIND PROJECT

TO USE THE BRAND-NEW LEONARDO DA VINCI.

BACK-UPCorporate Information

Prysmian Group | A True Public Company

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World leader in the energy and telecom cable systems industry

Partner of the world's key players

A strong reputation for performance and innovation

A listed company without a controlling shareholder,

managed on a transparent basis (over 9,200 employees as investors)

+50 Countries

+100 Plants

25 R&D Centers

+ 28,000 Employees

+ 10 € BN annual sales

Data refers to 2020

Prysmian Group | Meeting the World’s Great Challenges

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Helping to meet

today’s great

challenges

The energy transition

From fossil fuels to renewable sources for low carbon

future

The digitalisation of our world

Channelling and transporting an explosion of big data

The electrification of society

Enabling the application of electrical power throughout

the world

The strength of climate change ambition

Achieving Net Zero between 2035 and 2040 for Scope

1&2 emissions, and by 2050 for Scope 3 emissions

The social ambition for greater inclusion

Strengthening Inclusion & Diversity, Digital, Local

Empowerment, Engagement & Upskilling, aligned with

the UN Global Compact