[RE-wrenches] Wind machines

[August Goers]

We installed a total of six different small vertical axis wind turbines in
San Francisco at Crissy Field starting over 10 years ago. I'll paste a
screenshot of the street view below. The systems were very well monitored
but unfortunately the webpage is now down. Long story short, the inverters
used more power (just standby loads) than the turbines produced. The best
turbine produced annually about what a single 200 watt PV module would
produce. So, don't install VAWT if you want any energy!

[image: image.png]

August
Luminalt

On Thu, Aug 17, 2023 at 12:42 PM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Im curious if anyone has actual measured data on a VAWT.
>
> It just seems like they are meat for the end of the worlders
>
> Jay
>
> On Aug 17, 2023, at 12:50 PM, Dan Fink via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
> Jay, as Roy mentioned, the small wind situation in the 1-2 kW range right
> now is pretty grim - Tons of awful imported products with vastly inflated
> "ratings" flooding the market on Amazon, Ebay and AliBaba. I was
> particularly impressed (NOT) by a 900mm diameter VAWT that seems very
> popular there....rated at 8000 watts! (face palm).
>
> There's the Superwind 1250 out of Germany that looks legit:
> https://www.superwind.com/superwind-1250/
>
> The AirForce 1 out of the UK looks possibly legit, though with 1.8m rotor
> they are counting on a cP of 0.33, which seems kinda high to me.
> https://futurenergy.co.uk/feshop/airforce-1-wind-turbines/
>
> I have no experience with actually flying these products however.
>
> Good luck! Solar is cheap but boring!
>
> Dan Fink
> Owner, Buckville Energy Consulting LLC
> IREC Certified Instructor for PV and Small Wind Installation
> NABCEP Certified PV System Inspector
> NABCEP PV Associate
> d <dan.fink at greendustrialtraining.com>anbob88 at gmail.com
> 970-672-4342
>
>
>
>
> On Thu, Aug 17, 2023 at 9:11 AM Jay via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Hi all
>>
>> Is anyone making a good quality 1-2kw wind machine?
>>
>> All of my searches come up with nothing.
>>
>> Thanks in advance
>> Jay
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