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: [email protected]
Website: www.macartney.com