Dutch Delta Works
Wave Power source is unlimited
Why Wave Power?
Unlike solar and wind energy which, due to their intermittent nature, are primarily suited to peak power supply, a number of factors favor wave energy as part of an energy portfolio including:
- the inherent high availability, reliability and predictability of wave activity
- the fact that any variability in wave activity happens gradually and with significant warning, making issues of grid interfacing manageable
- the proximity of favourable wave energy sites to ultimate end users, thereby minimising transmission issues. Notably, approximately 60% of the world’s population lives within 60 kilometres of a coast; and
- the energy density of the wave resource (water is 800 times more dense than air).
In addition, this can operate efficiently in swell in the 1 to 2 meter wave height range, greatly increasing the number of potential base-load sites globally. For example, much of Australia receives significant wave heights in excess of 1 meter 100% of the time.
The worldwide resource of this kind of energy has been estimated to be greater than 2 TW. Locations with the most potential for wave power include the western seaboard of Europe, the northern coast of the UK, and the Pacific coastlines of North and South America, Southern Africa, Australia, and New Zealand. The north and south temperate zones have the best sites for capturing the power of the oceans. The prevailing wester lies in these zones blow strongest in winter.