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 energy lies, and allows energy to be absorbed from any wave direction 2
Aquaculture Experience Aquaculture started in sheltered waters: • Close to shore • Easy to operate • Challenges with sea lice and disease • Little wave energy 3
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 4
Series 6 -The Design Brief £4,000 £300 £800 Low Cost Maintenance Strategy 5
Why blue power? Fuel costs rising Meeting customer green pressure Lowering carbon costs of operation Making use of the available wave resource 6
Green Genius (Greenius) Award • 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 7
The Wave Climate • Mix of actual and potential sites • Parameters for each site modelled to calculate electrical output • Feasible output at >0.3m waves 8
Mooring Systems • Challenges in the short term • Synergies in the longer term 9
Site Electrical Load • Load varies with farming activity • Main load is the feeding system • Also lighting, cameras, telemetry, sensing & communications 10
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 11
The Isle of Muck Project • New site in 2014 • 3m waves • 3 unit array 12
5 busy days…… 13
Muck Results • Successful deployment • No electrical load available due to project changes • Good stationkeeping • PTO linkage breakages • Remote video surveillance • Last 500m data challenges • 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 14
Kishorn Revisited 15
A larger array 3 more units to site Hybrid power trailer to site Commissioning of 6 unit array and full hybrid system 16
A working array 17
Getting packed for a move 6 Squid units stacked on deck 18
Next …Mingary Bay Project 19
THANK YOU David Campbell Midlothian Innovation Centre Director Pentlandfield Midlothian AlbaternLtd Scotland EH25 9RE T +44(0) 131 440 9025 M +44(0) 7739 429827 E david.campbell@albatern.co.uk www.albatern.co.uk 20
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