Talk:Germany/Wind Turbine

Several issues withn small size VAWT haven't been mentioned yet:

The power output per square meter wind farm may be higher for small VAWTs, but the disadvantage is, they use the area exclusively. With large HAWTs spaced 400ft apart, the area can be used for farming with a minimum area lost for wind power, VAWT spaced at 20 ft don't allow any use.

Higher weight per power (kg/kW) means also higher costs per kW as materials don't come for free.

In the OSE wiki I found some requirements for wind turbines: <<>> I am very curious if its possible to achieve this goal with small turbines.

Bastelmike 25/03/2012

Both VAWT & HAWT are on poles or towers that you have to avoid running into with the tractor. But that is more of a secondary question where you put them and not the construction the thing we are trying to do here first. Just make room for a tractor to pass between them and you are done. It is dependent on where you are so I wonder if you have this problem or if you try hard to think of problems that do not exist yet. In that case take a look at the tasks that need help and do something more constructive instead. Regarding cost it will be interesting to see what we come up with. If we don't reach the goal we can hopefully improve. That is what this is about./Johan

"The power output per square meter wind farm may be higher for small VAWTs, but the disadvantage is, they use the area exclusively. With large HAWTs spaced 400ft apart, the area can be used for farming with a minimum area lost for wind power, VAWT spaced at 20 ft don't allow any use."

- Bastelmike

We are not aiming for large industrial wind farming combined with agriculture, but rather a densely packed energy sourcing, such as in an urban environment on the limited space of a roof - In addition to that, the grid matrix may be spaced large enough to accommodate the use of industrial farming machines just as Johan mentioned.

Is it possible to make the VAWT more or less height independent with modularity? I could run it on the ground or I can attach it on a tower/post. (— Nikolayhg 22:29, 26 March 2012 CEST)

Yes it is, in a certain range. (— Alex Shure 2012-03-26 2358 CET)

"Higher weight per power (kg/kW) means also higher costs per kW as materials don't come for free."

- Bastelmike

This point is not yet confirmed and has to be proven. However, I think we should definitely accept a trade-off at this point due to the overwhelming advantages of a smaller form factor.

"In the OSE wiki I found some requirements for wind turbines: <<>> I am very curious if its possible to achieve this goal with small turbines."

- Bastelmike

I guess my aims and outlines are more realistic and thus I excluded parts of the OSE core values from the requirements. Consider this OSEE project independent from OSE and FeF/GVCS - up to today, this is an OSEE project and not part of the GVCS and neither funded by the OSE organization. (Although I am not against it - with the newly gained wealth of OSE in the US ;))

(— Alex Shure 2012-03-26 1804 CET)

elecronics
found this video, thought i might add it here: http://www.youtube.com/watch?v=-xSEmgJ57JA --Dorkmo 01:02, 11 April 2012 (CEST)

Thanks, Dorkmo. We already incorporate a buck converter in the design, have a look at the TiVA electronics. Additionally, the coil layout is switched from serial to parallel at higher rpm. The latter will give a much better electrical efficiency than any buck or boost converter. However, the concept is entirely new and the hard- and software will have to be developed. --Alex Shure 20:10, 11 April 2012 (CEST)