Wind Maps for California [RE-wrenches]

[Bob-O Schultze, Electron Connection]

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Amigos,
IMO, the whole program of taking wind data readings from a 10m tower 
and extrapolating it for higher (but not actually recorded) tower 
heights is hopelessly flawed.
As David points out, there is still some turbulence at 10m even where 
the measurement site is ideally situated. In reality, the data sites 
are rarely so situated. I can show y'all pictures of all five of the 
wind data sites here in Siskiyou county. One, maybe two give 
semi-accurate data. the others are in the trees, right next to the 
freeway where turbulence from trucks affect them, on and on. If your 
10m data is flawed, then any mathematical extrapolation from that 
data is bogus. Garbage in, garbage out.
Bob-O

>Yes, the wind increases with height above the ground. These are 
>estimates of the
>windspeeds based on the assumed wind shear that is expected. I 
>consider 30m to be
>the minimum height for good wind energy. Wind turbines mounted at 
>10m generally do
>not work and if they do have very low energy production and much 
>shorter life due to
>turbulence.

-- 
Bob-O Schultze, Electron Connection
PO Box 203, Hornbrook, CA 96044
800.945.7587 or 530.475.3402
fax 530-475-3401
www.electronconnection.com

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