Wind turbine basics

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Discussion

audi321

Original Poster:

5,435 posts

218 months

Tuesday 3rd September
quotequote all
Hi all, bit of a hypothetical question, but just to dumb things down to my basic understanding of things.

Assuming I had sufficient wind speed to run a small wind turbine capable of producing 400w at 12v. Using an invertor, would this produce 20w at 230v? ie is it as simple as 12/230*400?

Thanks all

RizzoTheRat

25,808 posts

197 months

Tuesday 3rd September
quotequote all
You swap amps for volts, but the power remains the same

So 400W at 12v is about 33A (quite a lot!), through an inverter to 240V you'll get 400W but it only needs about 1.6A. Of course in reality the inverter isn't 100% efficient so you'' probably get more like 350W

I'm guessing a bit here but I'm assuming the generator bit is similar to the generator/alternator on a car or bike, which usually 3 phase with regulator/rectifier to get it DC and chop it off at 14v or so. If you get something that's being limited to 12v DC and then step it up to 240v AC it's going to be pretty inefficient I'd have thought.