The document discusses the opportunities for marine renewable energy, specifically wave and tidal energy, in Ireland. It outlines that wave power alone could produce five times the global electricity consumption and notes Ireland has significant wave energy potential. The document also describes a wave energy technology called the oscillating wave surge converter, or Oyster, which is designed for simplicity and has advantages like being easy to build, install, operate and maintain. It argues marine energy could provide clean energy, energy security, jobs and economic benefits for Ireland.