Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Powers that be


Your news feature ( N C E 2 5 October) regarding wind energy would indicate that turbines on masts are the only form of harvesting wind power.

Unfortunately these wind turbines are unable to utilise all the power available and, like the windmills of old, are restricted by not being able to rotate beyond about 30rpm while pitch control is required to avoid structural failure.

More wind efficient designs are available that are yet to be developed and are based on wind collector arrangements which allow the use of smaller diameter turbines operating at higher speeds of 500-1,000 rpm. This eliminates the need for pitch control and gearing for electricity generation.

The winds that blow over the west of Scotland will not be fully used by the present design of wind turbines.

HD Osborn (M), 15 Cowal View, Gourock, Renfrewshire, PA19 1EX

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.