What wind turbine would produce more power? A blade diameter of 50cms or two at 25cm?

Are two wind turbines better than one big one?

Should I have lots or just one big one in the garden?

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  1. J S says:

    power goes as the area of the blade’s path.

    twice the radius, four times the power.

    it also goes as the square of the wind speed, so double the wind speed, quadruple the power

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Who am I ?

Erik

Hi, I’m Erik Astrand and the man behind this site.

My story?
I am about to be 50 and all my life I have been interested in technical things. Not sure if the special interest for the wind, and how to use the wind, started when I as a 5 year old boy and got my first sail dinghy.

Anyway, wind power and to build my own wind generator was a dream for several years. I studied many websites and also bought many courses before I finally built my own windmill. This site is about that journey and you will also find some more general articles about wind power.

Enjoy! and check out the about me page to read more.