Offshore Mariculture& Wave Energy A natural match? David - - PowerPoint PPT Presentation

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offshore mariculture wave energy a natural match
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Offshore Mariculture& Wave Energy A natural match? David - - PowerPoint PPT Presentation

Nov 24, 2023 249 likes •462 views

Offshore Mariculture& Wave Energy A natural match? David Campbell david.campbell@albatern.co.uk The Wave Energy Challenge Each articulated junction in a Squid allows it to follow the orbital particle motion of the waves, where the wave

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Offshore Mariculture& Wave Energy A natural match?

David Campbell

david.campbell@albatern.co.uk

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The Wave Energy Challenge

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Each articulated junction in a Squid allows it to follow the orbital particle motion of the waves, where the wave energy lies, and allows energy to be absorbed from any wave direction

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Aquaculture Experience

Aquaculture started in sheltered waters:

  • Close to shore
  • Easy to operate
  • Challenges with sea lice and disease
  • Little wave energy
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The Move Offshore

  • Enabled by more robust equipment
  • Cages, moorings, feed barges, nets
  • Giving better fish growth
  • Less issues with disease
  • Better spread of waste
  • More wave energy available
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Series 6 -The Design Brief

£800 £4,000 £300

Low Cost Maintenance Strategy

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Why blue power?

Fuel costs rising Meeting customer green pressure Lowering carbon costs of operation Making use of the available wave resource

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Green Genius (Greenius) Award

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  • UK Government program
  • Projects tackling 2 or more of water, food & energy
  • Listed as an example ‘wave powered fish farming’
  • In the UK farms moving further offshore
  • Feasibility 2012-13
  • Demonstration 2013 -2015
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The Wave Climate

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  • Mix of actual and

potential sites

  • Parameters for each site

modelled to calculate electrical output

  • Feasible output at

>0.3m waves

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Mooring Systems

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  • Challenges in the short term
  • Synergies in the longer term
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Site Electrical Load

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  • Load varies with farming activity
  • Main load is the feeding system
  • Also lighting, cameras, telemetry,

sensing & communications

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The solution –a hybrid

The hybrid solution maximises the initial savings and mitigates risks by maintaining the existing diesel systems on critical feeding task whilst system confidence is gained

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The Isle of Muck Project

  • New site in

2014

  • 3m waves
  • 3 unit array
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5 busy days……

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Muck Results

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  • Successful deployment
  • Good stationkeeping
  • Remote video surveillance
  • Recovery for maintenance
  • Redeployment into the grid
  • Good hydraulic pressure achieved
  • Measurement of data achieved
  • Hydraulic system improvements
  • Data link to office proven
  • Full site cleared on decommission
  • No electrical load available due to project changes
  • PTO linkage breakages
  • Last 500m data challenges
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Kishorn Revisited

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A larger array

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3 more units to site Hybrid power trailer to site Commissioning of 6 unit array and full hybrid system

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A working array

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Getting packed for a move

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6 Squid units stacked on deck

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Next …Mingary Bay Project

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THANK YOU

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Midlothian Innovation Centre Pentlandfield Midlothian Scotland EH25 9RE David Campbell Director AlbaternLtd T +44(0) 131 440 9025 M +44(0) 7739 429827 E david.campbell@albatern.co.uk www.albatern.co.uk