The Renaissance of Renewable Energy by Gian Andrea Pagnoni & Stephen Roche

Author:Gian Andrea Pagnoni & Stephen Roche [Pagnoni, Gian Andrea]
Language: eng
Format: epub
Publisher: Cambridge University Press
Published: 2015-03-30T21:00:00+00:00

The Benefits and Costs of Ocean Energy

Although more than 100 different technologies are under development in more than thirty countries, ocean energy systems are at a very early stage and will not have much impact on energy markets for many years. Some governments, particularly in countries along the northeastern Atlantic, are promoting ocean energy technologies.

With the exception of tidal power, which basically adapts the technology of hydroelectric dams to estuarine situations, most ocean energy technologies have not yet progressed beyond the prototype stage.32 Even tidal power is in its infancy. A small conventional coal plant generates more electricity than the world’s total installed capacity of tidal power of roughly 600 megawatts (end of 2011). However, many projects are in development all over the world, some of them with very large capacities, including in the UK (Severn Estuary), India, Korea and Russia. The total capacity under consideration is 43 gigawatts (64 TWh per year), the equivalent of roughly thirty conventional coal-fired power plants.

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