SMA Windy Boy Status [RE-wrenches]

Jeff Clearwater clrwater at earthlink.net
Wed May 14 11:23:37 PDT 2003


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Hi Kent,

That's great news.  Thanks for the good work.  Now can we work with 
Harris and ES&D and others to make it work for micro (nano/pico) 
hydro?  Seems like that constant source would be even easier to 
provide a constant non-spiking DC power input.

Best,

Jeff C.


>Jeff, I'll let John answer the Sunny Island question, but I'll take the
>Windy Boy question since it has been my baby for some time.
>
>INRE: Windy boy: They are available! We have been shipping Windy Boy
>inverters to various wind turbine distributors. These are actually Sunny
>Boy 2500U/1800U inverters with special turbine software installed at our
>factory. I know that Southwest Windpower, African and Proven are all
>flying their turbines in the US with WB2500s. In order to maintain one
>hardware design for many turbines, we have taken the approach that it is
>the responsibility of the turbine manufacturer to protect the DC input
>to the inverter. This places the burden upon the turbine manufacturer to
>limit the DC current and voltage within the nameplate ratings on the
>inverter.
>
>At this time we are only selling this version of the Sunny Boy to
>turbine manufacturers or their primary distributors. The inverter has
>software configuration parameters that need to be set to optimize the
>power curve with the turbine alternator. Therefore, we only want these
>inverters to be sold as a kit with the turbine they are configured to
>work with.
>
>I am personally very excited to finally provide a truly grid tied wind
>turbine that does not have to be connected to a battery inverter system.
>Removing the batteries from the system, as well as providing a high
>efficiency inverter will result in 40-50% greater energy capture from
>the wind. This, of course, greatly improves the financials of the
>system, as well as the reliability. And you don't have to deal with the
>lead.
>
>Please contact your turbine distributor or myself offline for further
>information. Regards,
>____________________________________________
>Kent Sheldon
>Projects Manager, Industrial Power Systems
>SMA America
>ksheldon at sma-america.com
>530 271 1821 Office
>
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-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village

877-SOLARVillage
PO Box 115
Boonville, CA 95415

61 Baker Rd
Shutesbury, MA 01072
413-256-6777, 413-825-0372 (Fax)
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