Wind Working Group

Comment

Comment by Ian Graham on January 7, 2010 at 1:59pm

(Pre-Commissioned turbine - hence the large accumulation of ice; we dont see this kind of build-up while in operation, but shows how big big of a punch it can throw. Dec 08)

Some of the fun stuff we are now able to tackle in terms of keeping the tip brakes working optimally. The solutions we are currently working on and joint problem solving with Kotz:
- Eliminating the spring mechanism for a retractable cable. (Currently under testing at both Kotz and Banner) Initial promise but more data is needed.
- Using inorganic and organic coatings on aluminum surfaces. Theoretically recuding ice adhesion up to 90% (we will see). Coatings motly deveoped by NASA for shurttle re-entry. Blade tepholon basd coatings are showing inclredible results in Nome.
- Replacing constant force spring with linear force spring; thus adding more holding strength while in operation and not comprimizing braking process/streses.
- Using dual purpose electro magnets; both creating magnetic field and thermal heat. Hope is to boost connectivity issues between electromagnet and holding plate in certain enviormental conditions like ice and frost by breaking ice adhesion bonds in certain conditions

Comment by Ian Graham on January 7, 2010 at 1:54pm

Wind Turbine Maintenance: Bottom Line for Regional Success

Hope to post some nuts and bolts comments soon involving Ice, Corrosion, and Communications but figured I'd start my comments with a fluffy mission statement.

As having the first (as I know) full time wind technician in Nome Maintenance has always been a part of our future/present development. To assist our full time person we need a network of part-time technicians to execute specific tasks when needed. Up unit this point we have spend an above average amount of time with the system at Banner Ridge and will continue to do so until we begin to modify existing issues.

With the reduction of maintenance time and energy spent with Banner coupled with the expanding mature local workforce we are now looking at providing expanded services within the region. Our scope can involve one time immediate work, or up to full Asset Management.

We believe it will begin to capture efficiencies in O&M costs, primarily leveraging the proximity of a knowledgeable workforce and economies of scale. Ultimately leading to lower cost, higher reliability wind energy with strict responsibilities to ensure we do everything within reason to keep the blades turning.

Comment by Katherine Keith on January 5, 2010 at 9:57pm

Wind Working Group Meeting tomorrow at APA from 1:00-3:30 AK time.
Call in number: 877.903.2255
Conference ID: 4182175