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Aquamarine’s Oyster wave energy converter
comes into action
Priyanka Kanwar | May 2 2009
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Aquamarine Power, a multi-technology company, specializing in marine energy conversion,
has come up with a new technology to produce electricity from deep waves of the ocean.
Aquamarine Power recently confirmed that it has successfully tested Oyster wave energy
converter to pump and export electricity into the grid at the New and Renewable Energy
Centre (NaREC) near Newcastle. Ediburgh-based Aquamarine power (half of which is owned by
Scottish & Southern Energy) is now confident that the Oyster can deliver electricity on a
commercial scale. It is expected that by this summer the full-scale machine will be installed at
the European Marine Centre in Orkney. A single Oyster can deliver up to a half megawatt of
power. However, a farm of Oysters is capable of hundreds of megawatts of output.
How the Oyster works
An oscillating Wave Surge Converter is placed offshore in a depth of about 10-12 meters.
When the waves move, the double acting pistons pushes the seawater upwards at a very high
pressure where it is converted into power with the help of hydroelectric generator. Due to its
location, it is easily accessible for maintenance. The coast of Orkney will have the first
prototype deployed this summer and that will confirm whether high tides and the abnormal
weather patterns can be transformed into power.
How green is the Oyster
Oyster can deliver more than 170 KW of electricity from a single pumping cylinder, proving
that a full-scale device can produce more than 350 KW of electricity with two pumping
cylinders. The uniqueness of this device lies in the fact that it can generate electricity in still
sea conditions, with no waves in the ocean as such and even continues to generate electricity
in the worst sea conditions. According to the company, the highest point to hit the power
should be around 300-600 KW, depending on the unit’s configuration and location.
Benefits
Aquamarine is developing a technology that is eco-friendly in terms of it design, maintenance
and operation. Further, it is silent, contains no toxic substances and does not require any
other substance apart from the sea around it. Aquamarine, along with Airtricity, the renewable
division of Scottish and southern energy, is looking forward to deploy the Oyster at sites
capable of hosting 1,000 megawatts of marine energy by 2020.
Via: Greenbang
Tags: Aquamarine Power, Oyster, NaREC, Hydroelectric, Orkney, Airtricity, configuration,
Environment, United Kingdom
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