Korea (Republic)

• What are novel features of the Shim wind-wave energy scheme?

The Shim wind-wave energy scheme has been developed in cooper­ation with Baek Jae Engineering of Seoul. It has many novel features, including a floating, lattice structure fabricated from plastics and com­posites, as well as incorporating an array of small wind turbines.

Section II. Supplementary Reading

C. Wave Energy

The design is at an early stage of development and, as such, there are several aspects that need further development. However, an indepen­dent assessment has been carried out which indicated that, if research in these areas is successful and the device lives up to its early promise, it is likely to be economically competitive with a range of electricity generation technologies, if deployed in energetic wave climates such as those of Western Europe. Baek Jae Engineering are continuing to develop the design and are intending to progress to testing a prototype in the near future.

Netherlands• What can you say about the Archimedes Wave Swing?

Teamwork Technology bv and a consortium of Dutch companies have been working to develop the Archimedes Wave Swing over the last four years. It is a heaving buoy device consisting of an array of three or more point absorbers. These are like hollowed-out "mushrooms", which contain air to achieve neutral buoyancy and are tethered' below the surface of the sea. As waves pass over the top of the mushroom, they alter the pressure of the air inside the mushroom and hence its buoyancy. This causes the system to move up and down, which acti­vates heave² compensators connected between the mushroom and its sea bed mounting. These pump oil to an hydraulic motor to supply mechanical power to an electric generator. All the mechanical and elec­trical equipment is contained within a single detachable³ unit sealed from sea water. The system is undergoing modification prior to begin­ning installation of a pilot plant in the waters off Portugal.

1 - связаны; 2 — набегание, накатывание волн на берег; 3 — отделяемый

Norway

• What is a centre of excellence for research into wave energy in Norway?

In the 1980's Norway deployed two of the largest, commercial wave energy schemes: a 350 kWe Tapchan and a 500 kWe OWC. Following a prolonged period of successful operation, both these schemes have ceased to function. However, opportunities for exporting the Tapchan

system have been pursued first by Norwave AS and now Groner AS (see Indonesia). Trondheim University remains a centre of excellence for research into wave energy.

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