John Ward's Conscience
Mon, 27 Oct 2008 21:26:00 GMT
Re: Offshore Windfarms
Ok...some information for all the sceptics not loving the offshore placing for these turbines.
Following are direct quotes, if you want the site itself I'll post the address at the bottom of this blurb ;)
"Offshore wind energy has the added attraction that it has minimal environmental effects and, broadly speaking, the best resources are reasonably well located relative to the centres of electricity demand. Moreover, higher wind speeds at sea mean an increased energy production, as energy output is a function of the cube of the wind speed. Average offshore wind energy increase ranges from 10-20%."
"The environmental impact of offshore wind farms is considerably reduced compared with those onshore; both noise and visual impact are unlikely to be issues."
"Studies on existing projects have shown that some foundations can act as artificial reefs with a resultant increase in fish populations from the new food supply. It has been suggested that the noise from the turbine travel underwater and disturb sea life. Nonetheless ships, boats and engines have been a fact of life for over a hundred years."
"There are several factors which suggest the development of an offshore wind energy industry. The resource is extremely large, the energy costs, although initially higher than for onshore, are cheaper than other renewable technologies and the risks are low, as several demonstration projects elsewhere have shown."
"Siting wind turbines at sea will reduce the constraints that can be found on land, such as the visual impact and planning challenges."
"There is some scope for reversing the whole way we look at power supply, in its 24-hour, 7-day cycle, using peak load equipment simply to meet the daily peaks. Today's peak-load equipment could be used to some extent to provide infill capacity in a system relying heavily on renewables. The peak capacity would complement large-scale solar thermal and wind generation, providing power when they were unable to. Improved ability to predict the intermittent availability of wind enables better use of this resource. In Germany it is now possible to predict wind generation output with 90% certainty 24 hours ahead. This means that it is possible to deploy other plant more effectively so that the economic value of that wind contribution is greatly increased."
Er yeah...so offshore wind energy is pointless.
http://www.oceanenergycouncil.com/