Enabling low cost tidal energy.

#FloTECThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 691916.

Company incorporated:

2002

First major investment:

2006

Further major investment:

2008

World’s first grid connected

floating tidal turbine: 2011

Further major investment:

2012, 2014 and 2015

Awarded flagship

Horizon 2020 funding

World’s largest tidal turbine

starts operation: 2016

Company Headquarters: Kirkwall,

Orkney

Edinburgh office

Grid connected test facility: European

Marine Energy Centre 15 years focused on engineering and testing the worlds most

advanced floating tidal technology.

100 years+ accumulated engineering and operational experience.

26 staff covering technical, commercial and administration. Targeted patents granted and filed on key controlling IP.

£30 million invested to date (including c.£6 million grant funding).

World’s largest operating tidal turbine – 2MW. 2 x 1MW nacelles with 16m rotor diameters. Stall regulated control. 500T turbine mass.

Standard Tidal Turbine Designs

Increase generator yield by positioning rotors in fastest flow regions near the surface.

50% depth

Power distribution (P ∝ V3)

2/3 of total power in upper half of water column

1/3 of total power in lower half of water column

Current velocity profile

Greater turbulence and less power available closer to seabed

No dependency on high cost specialist construction vessels.

Manufacturing process analogous to ship building.

Simplified offshore operations involving moorings and cable installation.

Maximise generator uptime by enabling fast response maintenance interventions.

Minimise cost of repairs and service vessels via turbine design and marine operations.

Inverter module failure.

Turbine shut down.

Swapped out via RIB access within 24hrs of intervention decision whilst turbine remained on site.

Turbine re-commissioned and generating within 36hr.

Electrical drive and control faults.

Most commonly occurring generic fault category resulting in most downtime for offshore wind turbines.

Demonstrated time to reset/resolve for SR1-2000: less than 12hrs turbine downtime using RIB style vessels.

Dynamic cable re-splice.

Non-standard cable repair requiring turbine shut down.

Single multi-cat vessel intervention to cut and re-splice subsea cable joint.

Completed in less than 48hrs from vessel mobilisation in up to 1.5m Hs sea conditions. Total costs under £50k.

SR1-2000 DEMONSTRATED MAINTENANCE CASE STUDIES

Majority of turbine equipment and auxiliary systems located in hull.

Hull accessible quickly via RIB at low costs (crew transit time <1hr @ EMEC).

Hull accessibility demonstrated in up to 2m significant wave height (therefore accessible 90%+ of the year @ EMEC).

Ultimate mooring loads driven by controllable thrust generation (i.e. highly survivable in storm conditions).

Loading variation due to surface waves manageable for generation across wide range of conditions.

2.2MW peak output. Best single tide = 6.3MWh. 21.7MWh+ in 24hrs generation =

45% capacity factor. 130MWh in 7 days of continuous

generation = 39% capacity factor.

2.2MW peak output. Best single tide = 6.3MWh. 21.7MWh+ in 24hrs generation = 45%

capacity factor. 130MWh in 7 days of continuous

generation = 39% capacity factor. Provided 7%+ of entire Orkney

electricity demand over 1 week of continuous generation.

2.2MW peak output. Best single tide = 6.3MWh. 21.7MWh+ in 24hrs generation = 45%

capacity factor. 130MWh in 7 days of continuous

generation = 39% capacity factor. Provided 7%+ of entire Orkney

electricity demand over 1 week of continuous generation.

Predictable source of generation.

2.2MW peak output. Best single tide = 6.3MWh. 21.7MWh+ in 24hrs generation = 45%

capacity factor. 130MWh in 7 days of continuous

generation = 39% capacity factor. Provided 7%+ of entire Orkney

electricity demand over 1 week of continuous generation.

Predictable source of generation. 450+ days on moorings. 380 days onsite in current install. 6,000hrs generation per nacelle. 3.2GWh+

Concept Design (FEED) ObjectivesLessons Learned

Business Strategy

Product Specification

Target Lowest Levelised Cost of Energy

FloTEC target = <£200/MWh

1st Arrays target = £150 - £180/MWh100MW target = £120 - £150/MWh

0

50

100

150

200

250

300

350

£/ M

Wh

Awarded contracts Scotrenewables forecast

Worldwide CfD Strike Prices Cost reduction trajectory rapidlytowards cost parity with otherrenewable generation sources.

100MW built capacity brings costs toa level comparable with currentlyoperating offshore wind capacityawards of c.£150 / MWh.

1GW build out that lands theScotrenewables technology at £100 /MWh.

The industry partners that deliverthe initial projects will be best placedto capture long term benefits fromrapidly expanding global markets.

Enabling market for low cost tidal energy.

#FloTECThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 691916.

Generation

#FloTECThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 691916.

Manufacture

Legs attached above thewaterline with all hullpenetrations and leg actuationsystem above the waterline.

Legs hinged axially to presentnacelles and pitch hubs tosurface for servicing at sametime as improving structuralload-paths.

360⁰ blade pitching allows forsimplified forward and aftmooring arrangement andimproved yield.

Key Innovations

www.flotectidal.eu

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 691916.