TECHNOLOGY: Wave EnergyApril 23rd, 2009
APPLICATION: Electricity Production
DESCRIPTION: There are three approaches to capturing wave energy: These are:
• Floats or Pitching Devices; these devices generate electricity from the bobbing or pitching action of a floating object. The object can be mounted to a floating raft or to a device fixed on the ocean floor.
• Oscillating Water Columns (OWC); these devices generate electricity from the wave-driven rise and fall of water in a cylindrical shaft. The rising and falling water column drives air into and out of the top of the shaft, powering an air-driven turbine.
• Wave Surge or Focusing Devices; these shoreline devices, also called “tapered channel” or “tapchan” systems, rely on a shore-mounted structure to channel and concentrate the waves, driving them into an elevated reservoir. Water flow out of this reservoir is used to generate electricity, suing standard hydropower technologies.
COUNTRIES WHERE TECHNOLOGY IS UTILIZED: Australia, Japan, UK
? Energy: Catching the energy in waves
iii. Internet site (s):
? The Australia Renewable Website (Austria Greenhouse Office)
? US Department of Energy
? Australian Renewable Energy Website
? European Wave Energy Research Network
? Wave Energy Research and Development at JAMSTEC (Japanese Marine Science and Technology Centre) Website
? Norwegian Wave Power Group Website
i. Capital or initial costs:
ii. Operation and maintenance cost:
iii. Fuel energy costs:
INPUTS / RAW MATERIALS UTILIZED TO PRODUCE:
ORGANIZATION (S) PROMOTING TECHNOLOGY:
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