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residential sized wind turbines
Posted by: Fritz
Date: September 29, 2023 03:32PM
[www.myskywind.world]

wish I had more reliable wind here and fewer NIMBYs.


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: bazookaman
Date: September 29, 2023 03:46PM
But what about the whales???


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Re: residential sized wind turbines
Posted by: Fritz
Date: September 29, 2023 03:52PM
and cancer


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: steve...
Date: September 29, 2023 04:12PM
We have lots of wind here but I can't seem to find the prices in US dollars.



Northern California Coast
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Re: residential sized wind turbines
Posted by: Fritz
Date: September 29, 2023 04:13PM
$2500 each.


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: ztirffritz
Date: September 29, 2023 05:21PM
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]


**************************************
MacResource User Map: [www.zeemaps.com]#



Edited 1 time(s). Last edit at 09/29/2023 05:21PM by ztirffritz.
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Re: residential sized wind turbines
Posted by: DeusxMac
Date: September 29, 2023 05:38PM
Quote
ztirffritz
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]

Curious; at a good operating speed, how loud is the mechanism; for example, how many decibels at say 20 feet away?
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Re: residential sized wind turbines
Posted by: Fritz
Date: September 29, 2023 05:47PM
[www.youtube.com]


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: pqrst
Date: September 29, 2023 07:06PM
Maybe roll your own wind farm.

[hackaday.com]
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Re: residential sized wind turbines
Posted by: Speedy
Date: September 29, 2023 07:35PM
Quote
Fritz
$2500 each.

That seems a bit hefty for one unit. But it is the type that would work on my roof whereas the Harmony might be too much for my roof to support.


Saint Cloud, Minnesota, where the weather is wonderful even when it isn't.
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Re: residential sized wind turbines
Posted by: Fritz
Date: September 29, 2023 07:43PM
That price is for the whole kit not just the turbine itself.


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: DeusxMac
Date: September 29, 2023 07:54PM
Very impressive. How about weather resistance? Heavy rain, snow, freezing rain (and maybe even hail)?
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Re: residential sized wind turbines
Posted by: Lew Zealand
Date: September 29, 2023 08:33PM
The blades look like bird-choppers with those speeds. I like wind power but its downside (other than HOA/neighbor acceptance) is its toll on birds. Maybe bats too?
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Re: residential sized wind turbines
Posted by: mattkime
Date: September 29, 2023 09:43PM
[www.sierraclub.org]


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Re: residential sized wind turbines
Posted by: mrbigstuff
Date: September 29, 2023 10:54PM
I watched a video maybe a year ago of a guy who made one with a disused washing machine motor


Hurts like a bastid...
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Re: residential sized wind turbines
Posted by: Lew Zealand
Date: September 29, 2023 11:58PM
Quote
mattkime
[www.sierraclub.org]

Looks good, thanks for that. Only 3.5 orders of magnitude fewer than cats, that'll be narrowed in no time.

Like 700 years.
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Re: residential sized wind turbines
Posted by: DeusxMac
Date: September 30, 2023 08:26AM
Quote
Lew Zealand
Quote
mattkime
[www.sierraclub.org]

Looks good, thanks for that. Only 3.5 orders of magnitude fewer than cats, that'll be narrowed in no time.

Like 700 years.

Layman’s opinion, but I believe it’s the turbines with airplane-style blades that kill the birds. The OP “blade” configuration is dramatically different.
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Re: residential sized wind turbines
Posted by: AllGold
Date: October 01, 2023 03:04PM
Quote
DeusxMac
Quote
ztirffritz
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]

Curious; at a good operating speed, how loud is the mechanism; for example, how many decibels at say 20 feet away?

[www.youtube.com]
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Re: residential sized wind turbines
Posted by: Fritz
Date: October 01, 2023 03:08PM
yea, but I'm pretty sure that frequency will cause cancer in whales.
or perhaps it's whales in cancer .....


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: Bill in NC
Date: October 01, 2023 03:52PM
Quote
AllGold
Quote
DeusxMac
Quote
ztirffritz
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]

Curious; at a good operating speed, how loud is the mechanism; for example, how many decibels at say 20 feet away?

[www.youtube.com]

That is a vertical-axis wind turbine, which frankly captures so little of the wind's energy versus the traditional horizontal-axis design that unless you can get and install one for free, forget it.

Horizontal-axis residential-scale wind turbines are usually loud as h**l.

And you never want them mounted on your house due to the vibrations they would cause.

Keep in mind to produce the power they advertise you need a sustained wind speed of 20 mph at your location.



Edited 1 time(s). Last edit at 10/01/2023 03:55PM by Bill in NC.
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Re: residential sized wind turbines
Posted by: ztirffritz
Date: October 02, 2023 09:49AM
That's not true. That common misconception came from incorrect data collected a long time ago. From Harmony's website:

>Everyone says that Savonius turbines have terrible efficiency compared to other designs. Why are you wasting time and money on this?

Quote
Harmony Wind Turbines
It’s understandable that there’s a lot of confusion surrounding this topic. When you do an internet search for “wind turbine efficiencies,” 85% of the time you find this incorrect graph, showing Savonius turbines with the lowest ratings. This graph is wrong and has unfortunately been published for several decades. The magic of the internet makes people think just because they found a quick answer that it’s the RIGHT answer.

However, if you dig deeper, you’ll find that this was a “mistake” (maybe deliberately done?) made back in the 1950’s or 60’s in some key publications.* That mistake simply got propagated and multiplied on the internet.

Click this link to see the graphs and explanations of the discrepancies: Incorrect Graphs Savonius Design

[cdn.shopify.com]

Quote
Bill in NC
Quote
AllGold
Quote
DeusxMac
Quote
ztirffritz
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]

Curious; at a good operating speed, how loud is the mechanism; for example, how many decibels at say 20 feet away?

[www.youtube.com]

That is a vertical-axis wind turbine, which frankly captures so little of the wind's energy versus the traditional horizontal-axis design that unless you can get and install one for free, forget it.

Horizontal-axis residential-scale wind turbines are usually loud as h**l.

And you never want them mounted on your house due to the vibrations they would cause.

Keep in mind to produce the power they advertise you need a sustained wind speed of 20 mph at your location.


**************************************
MacResource User Map: [www.zeemaps.com]#
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Re: residential sized wind turbines
Posted by: macphanatic
Date: October 02, 2023 11:44AM
These would be good for the rooftops of high rises. Constant wind and would be easier to install than blade type units.
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Re: residential sized wind turbines
Posted by: Fritz
Date: October 02, 2023 12:09PM
there's a number of res houses shown on their site.

Think it just depends on where one is in the wind path.

[globalwindatlas.info]

don't say I never gave you nuthin'


!#$@@$#!

never do yesterday or today what you can put off til tomorrow or next year.

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Re: residential sized wind turbines
Posted by: Bill in NC
Date: October 02, 2023 02:59PM
Quote
ztirffritz
That's not true. That common misconception came from incorrect data collected a long time ago. From Harmony's website:

>Everyone says that Savonius turbines have terrible efficiency compared to other designs. Why are you wasting time and money on this?

Quote
Harmony Wind Turbines
It’s understandable that there’s a lot of confusion surrounding this topic. When you do an internet search for “wind turbine efficiencies,” 85% of the time you find this incorrect graph, showing Savonius turbines with the lowest ratings. This graph is wrong and has unfortunately been published for several decades. The magic of the internet makes people think just because they found a quick answer that it’s the RIGHT answer.

However, if you dig deeper, you’ll find that this was a “mistake” (maybe deliberately done?) made back in the 1950’s or 60’s in some key publications.* That mistake simply got propagated and multiplied on the internet.

Click this link to see the graphs and explanations of the discrepancies: Incorrect Graphs Savonius Design

[cdn.shopify.com]

Quote
Bill in NC
Quote
AllGold
Quote
DeusxMac
Quote
ztirffritz
I've invested in a company called Harmony Wind Turbines that makes vertical stack turbines that can open and close depending on conditions. It allows them to make more consistent amounts of energy over a wider range of conditions.

[harmonyturbines.com]

Curious; at a good operating speed, how loud is the mechanism; for example, how many decibels at say 20 feet away?

[www.youtube.com]

That is a vertical-axis wind turbine, which frankly captures so little of the wind's energy versus the traditional horizontal-axis design that unless you can get and install one for free, forget it.

Horizontal-axis residential-scale wind turbines are usually loud as h**l.

And you never want them mounted on your house due to the vibrations they would cause.

Keep in mind to produce the power they advertise you need a sustained wind speed of 20 mph at your location.

VAWT remain a joke because in a residential application there's no easy way to get away from ground-induced turbulence which kills the usable wind energy.

Which is why even HAWT need to be installed on top of tall poles.

One of the latter installed above a house roofline as pictured isn't going to work worth jack either.



Edited 6 time(s). Last edit at 10/02/2023 03:05PM by Bill in NC.
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