Roger asked about wind conditions, “I’d like to see the output from the site anenometer so we knew what windspeeds were up there when it went down.” … can’t do that but I can dig…
A question arises on whether the rotor assembly was damaged during icing conditions, later failing under relatively simple conditions. Water ingress into composite blades is also possible.
SNOW, dated 11th December 2014 at a Met Office site not far away. The Met Office communications failed, quite common with Met Office sites. The wind at the 300 metre ground altitude Screggagh wind farm will have been faster, more so at hub height. Other met sites had snow and rain, wet conditions with a wind.
The earlier snow event was before some rain followed by a hard freeze then the wind storm where the machine failed.
Wind gust, note the wind speed scales are different. These are nothing dramatic, well exceeded earlier during the year. (not shown here) A minor low pressure area cross the region around 17 to 18 hours just before the failure, with minor evidence of wind shift, nothing dramatic. (not shown here) Icing
Graphic from Nordex (the manufacturers) PDF about anti-icing designs. I suggest it is not so much cold as wet cold.
Promotional PDF about icing
This web site will raise some smiles over photos and content
Fintona celebrates £1 million windfall FINTONA is celebrating news that the area is to receive a £1 million windfall which will be spread over the next 25 years. The Fintona Community investment fund is being provided by the owners of the relatively small eight turbine Screggagh wind farm, built in 2010-11, which is located in the townland of the same name just outside Fintona. The investment will be £40,000 per annum, (£5,000 per turbine), index linked to keep in line with inflation for a minimum of 25 years or the lifetime of the wind farm, and result in a minimum of £1 million investment at today’s value in local community initiatives.
Post by Tim