2
Aquaculture Experience
Aquaculture started in sheltered waters: • Close to shore • Easy to operate • Challenges with sea lice and disease • Pollution
• Little wave energy
3
Scottish Salmon Farm Sites
4
Scottish sites – a closer look
5
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
The Wave Energy Challenge
6
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
7
Series 6 - The Design Brief
€900 €4,500 €340
Low Cost Maintenance Strategy
8
Why blue power?
Fuel costs rising Meeting customer ‘green’ pressure through lowering carbon costs of operation Making use of the available wave resource
Generation Costs
9
Different markets have different cost bases The objective is to reach parity with other generation in a market without revenue support
Green Genius (Greenius) Award
10
• 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
The Wave Climate
11
• Mix of actual and potential sites
• Parameters for each site modelled to calculate electrical output
• Feasible output at >0.3m waves
12
Varied Wave Resource
Modelled results from an Albatern / IDCORE project showing energy yield. Red bigger – blue more sheltered – smaller waves matching with arrays of smaller sized units But need to watch for extreme conditions
Mooring Systems
13
• Challenges in the short term • Synergies in the longer term
Site Electrical Load
14
• Graph comes from a project with a Chilean university funded by CORFO- Govt R&D arm
• Load varies with farming activity
• Main load is the feeding system
• Also lighting, cameras, telemetry, sensing & communications, predator scarers and net cleaning
15
Salmon Farm Projects
Isle of Muck • - new site in 2014 • 3m waves • 3 unit array
Mingary Bay • - risk mitigated site
operating with fish • 2.7m waves • 6 unit array + grid
MINGARY BAY
16
5 busy days……
A working array
17
Getting packed for a move
18
6 Squid units stacked on deck
Next …Mingary Bay Project
19
Mingary Bay Site Plan
20
Illustrative Examples
21
45 kW
• 6 modules
• Surface footprint: 860m2
• Capture Width: 40m
• Single cable to customer
• 20m minimum depth
135 kW
• 18 modules
• Surface footprint: 2,615m2
• Capture Width: 80m
• Single cable to customer
• 1kV DC transmission voltage
Offshore Aquaculture where next?..........
22
THANK YOU
23
Midlothian Innovation Centre Pentlandfield Midlothian Scotland EH25 9RE
David Campbell Director Albatern Ltd
T +44(0) 131 440 9025 M +44(0) 7739 429827 E [email protected] www.albatern.co.uk