Capturing the energy of waves could provide more than 20 per cent of the UK's electricity needs by the year 2025. There would be no environmental damage and no use of finite fossil fuel resources. This is a clean, renewable and non-damaging power source. This book explains how it could work, how experimental stations do work and the politics and vested interests that have hindered and continue to hinder it. This text is for environmentalists interested in alternative energy and as background reading on environmental engineering, offshore engineering and renewable energy courses.