Ar skaitei mano duotą nuorodą? Ten realūs testai su skaičiais, o ne 
vadybininkų pasakaitės.
http://www.lowtechmagazine.com/2009/04/small-windmills-test-results.html

A real-world test performed by the Dutch province of Zeeland (a very 
windy place) confirms our earlier analysis that small windmills are a 
fundamentally flawed technology (test results here, pdf in Dutch). 
Twelve of these much hyped machines were placed in a row on an open 
plain (picture above). Their energy yield was measured over a period of 
one year (April 1, 2008 - March 31, 2009), the average wind velocity 
during these 12 months was 3.8 meters per second (note: update on the 
wind speed). Three windmills broke. Find the disappointing results of 
the others below.

Help rašė:
> Turiu dilema ir bandau spresti. Ar geriau vertikali ar horizontali vejo 
> jegaine?
> 
> Turiu pasiulyma issigyti kinietiska 500 w horizontalia 
> http://www.chinahummer. cn/eng/product.asp
> 
> ir vertikalia vejo jegaine, panasia kaip si http://www.generator. 
> lt/index.php?p=katalogas&do=2&gr=126&id=295. Ji yra 2 kw. Tik va tada 
> stieba reik daryti minimum 8 metru ir ji pati didziule.
> 
> Pinigai panasus, tik va efektas idomu koks. Imponuoja vertikali vj, nes 
> nesukelia didelio triuksmo. Bet didziausias klausimas del efektyvumo. 
> Nes kur as gyvenu (prie Kauno), vidutinis vejo greitis 4-6 m/s. Ka 
> pasirinkti?