Wave EnergyTechnologies

San Jose State University

FX RongèreMay 2008

Technology

Three major concepts Attenuator Point Absorber

Terminator

Technology

Finavera AquaBuOY

Technology

Test in Newport Oregon (Sep-Nov 07) Each buoy generates 250 kW Anchored by 110 feet of water

A 4 unit test planned in Makah bay (WA)

Technologies

Ocean Power Technology

Tests planned in Hawaii, Spain an Oregon for 40 kW units and 150 kW units

Technology

Permanent Magnet Linear Generator Buoy in development at Oregon Sate University

Oregon State University Research

Hinsdale Wave Research Lab (HWRL) Dimensions:342ft long,12ft wide, 15ft

deep Wave period range: 0.5 to 10 seconds Max. Wave: 1.6 m (5.2 ft) @ 3.5 sec

Technology

Technology Archimedes Wave Swing (AWS Ocean

Energy) Secured an investment from Shell in Feb 2008

Technology

New 250 kW prototype to be installed in Orkney (Scotland)

Technology

Technology

Power absorber joint

Technology

Pelamis performance

About 30-50% of conversion rate

Technology

Pelamis has been tested at sea in January 2007

It has been anchored to Orkney (UK) at the Marine Energy Test Centre

Technology

Wave Dragon

Technology

Funneling increases wave energy

TechnologyNissum Bredning

prototype0.4 kW/ m

Weight, a combination of re-inforced concrete, ballast and steel

237 t 22,000 t 33,000 t 54,000 t

Total width and length 58 x 33 m 260 x 150 m 300 x 170 m 390 x 220 m

Wave reflector length 28 m 126 m 145 m 190 m

Height 3.6 m 16 m 17.5 m 19 m

Reservoir 55 m3 5,000 m 8,000 m3 14,000 m3

Number of low-head Kaplan turbines

7 16 16 - 20 16 - 24

16 - 20 x 16 - 24 x350 - 440 kW 460 - 700 kW

Rated power/ unit 20 kW 4 MW 7 MW 11 MWAnnual power production/ unit

- 12 GWh/ y 20 GWh/ y 35 GWh/ y

Water depth 6m > 20 m > 25 m > 30 m

Permanent Magnet Generators

7 x 2.3 kW 16 x 250 kW

Wave Dragon key figures 24 kW/ m 36 kW/ m 48 kW/ m

Source:www.wavedragon.net

Technology

Source: G Hagerman Virginia Tech – EPRI “The Role of Advanced Hydropower and Ocean Energy in Upcoming Energy Legislation” Washington DC June 8th, 2007

Shallow Water

The sea bottom influence the wave shape and particle motion

Source: J Floor Anthoni, Oceanography: waves theory and principles of waves, how they work and what causes them

Technology

Oceanlink Water goes up and down in the cavity pushing and pulling air through the turbine

Prototype of 450 kW tested in Port Kembla (Aus) (2007)

Technology Port Kembla (New South Wales, Australia): a Power Purchase

Agreement (“PPA”) has been signed with Australian utility Integral Energy for the supply of electricity from the prototype 450kW unit.  This will be the first offshore wave energy company to be connected to the commercial grid (expected November 2007).

Portland (Victoria, Australia): in advanced permitting stage for the deployment of eighteen 1.5MW units, giving a total capacity of 27MW.  This will be the largest wave energy project in development in the world.

GPP (Namibia): a signed contract with GPP, part of the listed Southern African Utility SELCo for a 1.5MW unit.  Once this unit reaches its agreed performance criteria, it will be followed by a further 10 units, equivalent to 15MW.

South West of England Regional Development Agency (SWRDA, Cornwall, UK): a signed Letter of Intent (“LOI”) with SWRDA for a 5MW facility as part of the Cornwall Wave Hub.

Rhode Island (USA): a Memorandum of Understanding (“MOU”) with Rhode Island State authority for a 1.5MW unit, followed by a 15 to 20MW electricity generating facility off the mainland.

Hawaii (USA): a signed MOU with an island in Hawaii for up to 2.7MW.

Wavegen Oscillating Water Column concept on-

shore

Technology

75 kW prototype on Islay Island (UK)

Source: Boyle, Renewable Energy, 2nd edition, 2004

Companies to follow

WavegenOceanlinxOcean Power DeliveryOcean Power technologyWave DragonFinavera