New wind turbine for Newcastle sitePosted: Thursday, 25th October, 2012
The winds of change have passed over our site (yes, I do bad wind power puns too). In August a new wind turbine was installed and we’re pleased to report it’s been working well and is supplying power to our buildings.
As has been mentioned before on the blog, our original turbines supplied electricity to CSIRO Energy Technology here in Newcastle for several years despite having had a bit of an (ahem) turbulent run. Installed when the site was first developed in 2003, the three 20 kW units endured a run of bad luck including two separate lightning strikes, mechanical problems, and changes to the supplier’s market support which was moved from Australia to a location 17000 kilometres away.
The northernmost turbine was removed in 2010 to make way for Solar Field 2. The remaining two were removed from their poles last year awaiting repair.
After consultation and much research CSIRO decided the best way forward was to change to a completely new turbine, which was installed on 9 August.
The new 5 kW unit has been installed on one of the existing footings and is mounted on a hydraulic tilt pole that’ll make maintenance a breeze (ba-boom). We’ve also been able to engage one of the several wind power companies that exist now and have solid track records and local backing.
The new turbine was up and running just in time to make use of the windy weather we had the following weekend (which of course, as we love to point out on this blog, gets its power from the sun).
Our new wind turbine isn’t just useful for helping power our building. It’s also part of an experiment carried out by our Smart Grid group. They use it, and all the other on-site generators (such as our many solar PV systems and our two gas microturbines), to investigate grid stability, distributed generation and intermittency management – in other words, how to make sure a region can have a constant, reliable energy supply, even when it’s coming from multiple varying sources.
I’m glad to see the new turbine up and running. When it comes to wind power, we’re huge fans.
Addendum (1.11.2012): since publishing this post I’ve been reminded by others that the three ‘original’ turbines in the photo were actually the second lot to be installed, not the first. Before them came a different set, installed by a different company, that experienced problems in a storm not long after the site opened. The supplier went out of business and was unable to maintain the turbines, which we subsequently replaced with the three shown at the top of this post.
One of the main factors leading to these problems has been that the wind market has become polarised into either supplying small units of 1 to 5 kW, or big ones of 1 to 10 MW. Our size preference of about 20 kW is in the middle – an area that’s less robustly covered by the market. This has contributed to our decision to size our newest turbine at 5 kW.