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Get Powered Up! Certified Energy Manager Jeff Yago answers your alternative energy questions

Wondering about a great new energy-saving device
you found on the Internet? Then CLICK HERE!

Sorry. Jeff no longer answers questions online.
This will remain as a searchable
resource for all BHM website visitors.



Archive for the ‘Converter’ Category

 

DC/AC Converters

Monday, March 30th, 2009

Jeff,

Thanks for offering this service.

I am building my own wind turbine for the home. This will be a grid-tied system that will plug into an outlet to supplement the grid. Can you recommend an affordable converter? I saw the Smart Sine Wave Inverter, but that costs $300. Is there a less expensive alternative?

Thanks,

Mark

Mark,

I think its great that you want to tackle a project like building a wind turbine. If you are going to use it to charge a set of batteries for a backup power system then that would be the way to go, but you will not be able to connect it to the grid.

Just a small point, a “converter” is used to convert AC to DC, and “inverter” is used to invert DC to AC.

First, the voltage and current output from a wind turbine is all over the chart as the wind keeps changing by the minute, which requires a very special DC to AC inverter designed for this type power input, plus be certified to feed power back into the grid. The lowest cost inverter I have seen that is designed for this type application and certified for grid connection costs around $2,500.00, plus circuit breakers and wiring. Your local utility will not allow you to feed power back into the grid unless the inverter has these UL and IEEE certifications, and you will not find this level of quality in any $300 inverter..

Sounds like you are on a tight budget, so I would stick with charging batteries and powering some emergency DC lights.

I will point out that many who ask me these type questions totally ignore my advice and go on and waste a lot of their time and money to find out the hard way, so either way, good luck with your project.

Jeff Yago

 
 


 
 

 
 
 
 
 
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