The
point absorber is a wave energy device that could potentially provide
ample quantities of power in a relatively small device as compared to
other technologies. Although there are strategies and numerous
designs for using these devices, mostly they all work in the similar
manner. They are small in size as compared to the wave length and
have bottom mounted structures. Power conversion takes place in
various forms depending on the conformation of the device. Vertical
movement of the buoy is used for alternate the compression of fluids
in various forms of container. The relative motion between the seabed
structure and the activated wave that float on the sea surface
activates the power system.
PB150
is the best known point absorber device manufactured by Ocean Power
Technologies. It is a floating type structure with a low surface
profile and inside it is a piston like structure which oscillates as
the device bobs with the wave movements. The wave motion drives a
generator to produce electricity which is sent to the shore by an
underwater cable. Ocean power technologies are currently in the
process of developing power tower, a system with a 500 kW capacity
which when completed is expected to drive the OPT system into a
higher level of commercial and utility scale product capability. The
US Department of Energy in partnership with the British Government
has started funding various stages of the development program of
PB500 power tower. In Coos Bay region, Ocean Power Technologies plans
to install a PB500 wave farm system in the near future. It is
expected that if the Coos Bay project is completed within time, it is
projected to be the largest wave energy park across the globe,
capable of supplying 275,000 MW of power to the grid every year.
Point
absorbers are designed according to the depth and location where they
have to function such as offshore, near shore and shoreline. The
First type of point absorber is called as Ocean Power Technology’s
Power Buoy. This type of point absorber floats on the surface of the
ocean. The rise and fall of the wave swell cause the buoy to rise and
fall. The floating buoy comprises two rods that are coupled with
devices which are similar to that of a piston within a cylinder. As
the buoy rises and falls the vertical motions cause the pistons to
rise and fall. The turbine is connected to the generator which
produces electricity. The second type of point absorber is Carnegie
Wave Energy’s (CETO). This CETO utilizes the energy of the waves
passing by to pull the buoy away from its structure. This in turn
creates a power within a cylinder. It consists of small individual
buoys that are anchored to the seafloor with buoyant buoys. As the
waves pass through the device the wave pulls the buoy with it. This
repeated motion creates power.
Some
of the key players in the point absorbers market are Pelamis Wave
Power Ltd, AWS Ocean Energy Ltd, Ocean Navitas Ltd, Carnegie
Corporation, Ocean Power Technologies Inc, Wave Bob LLC and Wave Bob
Ltd among others.
This
research report analyzes this market on the basis of its market
segments, major geographies, and current market trends. Geographies
analyzed under this research report include
- North America
- Asia Pacific
- Europe
- Rest of the World
This
report provides comprehensive analysis of
- Market growth drivers
- Factors limiting market growth
- Current market trends
- Market structure
- Market projections for upcoming years
This
report is a complete study of current trends in the market, industry
growth drivers, and restraints. It provides market projections for
the coming years. It includes analysis of recent developments in
technology, Porter’s five force model analysis and detailed
profiles of top industry players. The report also includes a review
of micro and macro factors essential for the existing market players
and new entrants along with detailed value chain analysis.
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