Challenges of New Significant Seabed User & Market - - PowerPoint PPT Presentation

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Challenges of New Significant Seabed User & Market Technologies

Rod Seville

HAi Limited

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A New Century – A New Offshore Technology Industry Arrives

European governments agree that 20% of national energy generation should be produced from all renewable energy sources ! The result: New technologies generating energy from Wind, Tidal/Current & Wave motion are evolving / being deployed in the offshore marine environment to meet this commitment.

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Near shore & along coast lines Between islands & islands / mainland Further Offshore Probable impacts to telecommunications systems could/will be in the following areas: Cable Routings System Costs Cable Landing Approaches Cable Crossings Cable Maintenance Activities Decommissioning

Development areas will be located:

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Sources of Offshore Renewable Energy

Current Current Wave / Tidal Wave / Tidal Water Column Fixed Wind Floating Wind

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Offshore Renewable Technology Factors

Technologies = Evolving, Wind the most advanced More Power = Larger seabed footprint Locations = Various – d epending upon the energy source Network Connectivity = All directly to shore Future Connectivity = Networked Offshore & becoming complex.

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Installation water depth Distance Offshore Wind - Static tower ≤ 50m ↑ 100km

• Floating tower

120m – 700m variable Wave ≥ 50m ↑ 20km Tidal / Current ≤ 50m variable

Current Offshore Technology Parameters

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Projected number of Wind turbines to be installed in UK waters up to 2020

Courtesy of BVG associates

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What does this really mean for the UK in Wind development?

• Investment of c £100 billion up to 2020
• Installation of up to 6000+ wind turbines
• Creation of 30+ Gigawatts of power by 2020

from offshore wind alone

• 28,500 km of sea area allocated for development

up to 2020

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Annual & Cumulative UK & European Wind Construction up to 2020

Courtesy of BVG associates

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And Europe?

• Comparable Investment c £100 billion
• Installation of up to 5500 wind turbines (ex.UK)
• Creation of 20+ Gigawatts of power by 2020

from offshore wind alone

• c.19,000 km of Sea area allocated for

development up to 2020

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European Wind Developments to 2020

Courtesy of EWEA & Le Tene Maps

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Alternative Technologies

• Wave, Tidal/Current are currently 2-5 years

behind wind technology but are developing rapidly

• Whilst Wind technology is moving further
• ffshore, Wave, Current/Tidal technologies will

likely remain relatively close to shore or on shallow continental shelves

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Future Network Evolution?

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European Super-Grid Concept Configuration

Courtesy of Mainstream RP

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2 x 500MW 2 x 500MW 2 x 500MW 2 x 500MW 2.4GW 2.4GW 2.4GW 2.4GW 400kV Converter Station ±320kV ±320kV

Supernode Concept

Courtesy of Mainstream RP

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Areas of potential impact

Telecom cable systems will/could be affected by Offshore Energy in several areas :

• Cable Routing
• Cable Landings
• Cable Crossings
• Cable Maintenance Methodologies / Procedures
• System Decommissioning

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Considerations for the Industry

Development & Innovation

• Cable Corridors?
• To suit the industry
• Retain OOS routes?-

Retain Shore End Landings as priorities

• Collaboration?
• Joint developments of cable routes?
• Offshore Hubs?
• Multiple system Hubs to Shore links

(high fibre unrepeatered systems?)

• Energy Tapping?
• Longer System Lengths
• Diversification?
• Energy fibre to diversify/enhance systems?

Drivers

• Costs &/or issues of access/re-routing cables?
• Benefits of collaboration on network diversification?
• Decommissioning Costs?

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Courtesy of IET media & information

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Thank You

Rod Seville HAi Limited

Rod.Seville@hai-ltd.com

• Tel. +44-1277-375180
• Mobile. +44-7768-157308