Developing Underwater Cable Infrastructure

utilizing Synergies from the Oil and Gas

Industry and UK Marine Renewables

Rasmus Bonde

Business Development Manager

MacArtney Inc.

The MacArtney Group

• Group headquarters Esbjerg, Denmark

• Subsidiaries and sales offices 12 locations in Europe, North America, Asia,

Oceania and the Middle East

• Sales representatives 18 locations around the world

Founded in 1978 by Martin and Winnie MacArtney

280+ employees in group companies

100+ employees in associated companies

Marine Renewable Energy – Underwater Infrastructure Solutions

Underwater infrastructure in O&G and MRE – Differences and Synergies

• Customized O&G field developments

– One off solutions

– Reliability, redundancy and life expectancy

– Focus on choice of materials

• Offshore O&G is an establish industry with proven solutions and products

– Offshore structures

– Cable and connector systems

– Moorings

– Swivels

– Cable protection and distributed buoyancy

• Developed standards and norms

– Certification and classification agencies

– Industry associations

Challenges

• Different environment

– Deepwater/Shallow water

– Short weather windows

• 120+ different device solutions within wave and tidal energy

– Continuously develop connectivity solutions tailored MRE requirements

– Develop standard solutions

• Early engagement

– Device technology, deployment, down to sealings poses a challenge as a cost

trigger

Developing MRE solutions based on O&G experience

Connecting MRE devices - Export and dynamic cable

- Cable protection

- Bend limiter/stiffener

- Stress termination

- Connectors

1st Generation In-Line Stress Termination

• Designed for OPT

• Weak link for controlled break

• Use 1 pin Subconn power

connectors

• 1kV/250amps or

• 3kV/90amps

• Use Optolink fibre optic

connectors

2nd Generation In-Line Stress Termination

• Designed for Solidal in

Portugal

• Use Pfisterer Connex

power connectors inside

• 6.6 kV/150amps

3rd Generation In-Line Stress Termination

• Designed for EDF at

Paimpol-Brehat tidal

farm

• Use Pfisterer Connex

power connector inside

• 36kV +/- 5kV/max

630amps

Case Study: Andritz Hydro Hammerfest at EMEC

• August 2013 at EMEC

site

• Floating crane used to

deploy 1MW tidal

turbine, HS1000

• 50m water depth, 3km

from shore

• 4-5 m/s currents

Case Study: Andritz Hydro Hammerfest at EMEC • MAC provided 2 x ½ In

line terminations, 2

bend stiffeners,

termination work on site

and installation

• Dynamic cable was

100m long

• Terminated into 3km

11kV electrical and fibre

optic export cable

• 80 hours for 2

technicians to conduct

termination work on

land

Case Study: Andritz Hydro Hammerfest at EMEC

• Crane barge used as

deployment vessel

• Tight working space

• < 2 hours to connect

two halves offshore

• No diver support

needed

Recommendations

• Develop standards and norms

• Standardize on device technology, output voltage, grid requirements Standardize on infrastructure solution, products and components

• Early engagement – from preferred solution providers with offshore/subsea experience – O&G supply chain to rethink solutions

• Continuously develop underwater infrastructure solution with industry – No easy fix for the pilots

– Need industry ready solutions for commercialization

Next Steps in MRE

Wet Mate Connectors

Subsea hubs

Subsea Hubs

• Higher voltage and higher output from devices

• Smaller 4-10 Array solutions – Power export and interconnect optimization

• Still premature for wet mate (tidal and wave)

• Increased focus on monitoring performance and integrity of assets

• Next generation connectivity solutions – experiences from O&G

– Test requirements, FITA (Flooded tech) – API standards

– Increased importance of reliability, redundancy and life expectancy

Next Steps in MRE

Thank you for your attention

Rasmus Frøkjær Bonde

Business Development Manager

MacArtney Inc.

Tel: +1 713 266 7575

Mob:+1 713 292 3613

E-mail: rfb@macartney.com

Website: www.macartney.com