What is Renewable Energy?
Renewable energy is energy which comes from renewable natural resources such as sunlight, wind, rain, tides, and geothermal heat. About 16% of global final energy consumption comes from renewables, with 10% coming from traditional biomass, which is mainly used for heating, and 3.4% from hydroelectricity. New renewables (small hydro, modern biomass, wind, solar, geothermal, and biofuels) account for another 3% and are growing very rapidly. The share of renewables in electricity generation is around 19%, with 16% of global electricity coming from hydroelectricity and 3% from new renewables.

The use of wind power is increasing at an annual rate of 20%, with a worldwide installed capacity of 238,000 megawatts (MW) at the end of 2011. The alternative form of energy is widely used in Europe, Asia, and the United States, gaining popularity at a rapid rate. Since 2004, photovoltaics (solar power) passed wind as the fastest growing energy source, and have more than doubled every two years since 2007.

What is wind power?
Wind power is the environmentally-friendly conversion of wind energy into a useful form of energy. Examples include using wind turbines to generate electricity and windmills for mechanical power.

What is wave power?
Wave power is the transport of energy by ocean surface waves, and the capture of that energy to do useful work — for example, electricity generation, water desalination, or the pumping of water (into reservoirs). Machinery able to exploit wave power is generally known as a wave energy converter (WEC).

What is an Oscillating Water Column (OWC)?
An oscillating water column uses a large volume of moving water as a piston in a cylinder. Air is forced out of the column as a wave rises and fresh air is drawn in as the wave falls. This movement of air turns a weir turbine at the top of the column.

What is a Power Platform?
The Power Platform typically comprises of six OWC (Oscillating Water Column) wave energy generators and a wind turbine. A typical configuration consists of:

  • 6 x  1 MW OWC wave generators
  • 1 x 3 MW wind turbine

The Power Platform structure is positioned one to three kilometres offshore and fixed on the seabed in a minimum water depth of 20 to 40m, thus avoiding the controversy and community dissent typically associated with onshore renewable wind energy.

What is a 
Power Platform Array?
An offshore array installation would include six or more Power Platforms, with a single umbilical power cable to shore. Each Power Platform has a total installed capacity of 9 MW, with an Energy Array of six islands generating up to 54 MW depending on wind and wave conditions – the equivalent of supplying more than 30,000 Australian houses with power for one year.


Latest News

GRSI attend MaREI open day
22 February 2015

GRSI attended the MaREI open day in Cork which was attended by Minister Alex White. GRSI annouced its plans to deploy in the 1/4 scale site with the assistance from SEAI and Galway Smart Bay.  ...
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GRSI Energy becomes a MaREI partner
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GRSI are delighted to annouce that the have successful become an industry partner, collaboaretively working with leading researchers within the renewable sector. The MaREI Centre provides a one-stop-s...
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GRS Linkedin
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You can now follow our up to date progress on ...
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GRSI Energy Ltd
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Global Renewable Solutions this month have established its Irish entity GRSI Energy Ltd ahead of its growing operations and developments on the West coast of Ireland. GRSI are looking forward to worki...
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GRS Attend Global Marine Renewable Energy Conference Seattle
18 April 2014

GRS attended the the 2nd Annual Marine Energy Technology Symposium in Seattle Washington. The GMREC was attended by a large industry body within the US. GRS are interested in expanding into the growin...
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