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Treacodactyl Downsizer Moderator
Joined: 28 Oct 2004 Posts: 25795 Location: Jumping on the bandwagon of opportunism
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gz
Joined: 23 Jan 2009 Posts: 8792 Location: Ayrshire, Scotland
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dpack
Joined: 02 Jul 2005 Posts: 46052 Location: yes
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Posted: Tue Dec 20, 22 3:47 am Post subject: |
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home electric is a splendid idea
getting a system that works for a reasonable cost with a reasonable break even point to lifespan ratio is important
there are a variety of wind based systems
there are a huge variety of wind conditions, by which i mean not only the windyness that day but the amount of turbulance from a combo of wind speed, wind direction and the landscape
unless you have a huge open flatish landscape the propeller bladed sort are problematic as they cannot adjust well to swirly wind and gustyness
if there are trees, buildings and assorted slopes etc the vertical rotor type are thought better, such as the type gz mentioned
size matters, it needs small enough to fit the landscape and be big enough to be worth the effort and expense
location matters, not just for the wind quality but for ease of transfer from generator to point of use, long wires eat energy
wind is intermittent, so deciding on storage style and use should be planned in
in a domestic setting with a few kw at max harvest grid storage might not be the best option, battery storage has become more practical and hot water options are fairly good
i do not have the landscape at the mo but have followed microgeneration stuff for many decades and have played scrapheap challenge with wind a few times
re cost effectiveness compared to pv , heat pumps etc in a domestic setting i have no idea
re style if there are trees, buildings, multiple slopes etc a propeller type will be a nightmare, the rotor type will be better but may still struggle in some conditions
running too fast can be worse than running too slowly, what ever style it needs a governor(centrifugal clutch) to prevent burn out in high winds
from scrap heap challenge stuff, what feels like a strong and steady wind is probably too unsteady and not strong enough to be useful with small scale kit
as with all micro generation, energy storage, energy conversion and energy transfer are usually the tricky bits, making leccy is fairly easy making the type of leccy you need when needed and getting it where you need it often isnt.
for a domestic setting i would probably consider pv rather than wind
for wind a rotor based system will probably be the best option
the issues of energy harvest, storage, transfer, conversion etc apply to both
cost-effectiveness ie outlay and payback time vs life span needs to be a major criterium
as does "will this thing harvest enough energy in the place i can put it to make the system effective ?"
these are all tricky as the folk who might know how such things apply to your needs will be trying to sell you their kit
also "typical" or "tested" outputs etc will be different for every site
there are good reasons to put huge ones in huge flat places and small ones in lumpy places seem rare |
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jema Downsizer Moderator
Joined: 28 Oct 2004 Posts: 28202 Location: escaped from Swindon
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gz
Joined: 23 Jan 2009 Posts: 8792 Location: Ayrshire, Scotland
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Mistress Rose
Joined: 21 Jul 2011 Posts: 15834
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Treacodactyl Downsizer Moderator
Joined: 28 Oct 2004 Posts: 25795 Location: Jumping on the bandwagon of opportunism
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tahir
Joined: 28 Oct 2004 Posts: 45612 Location: Essex
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dpack
Joined: 02 Jul 2005 Posts: 46052 Location: yes
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dpack
Joined: 02 Jul 2005 Posts: 46052 Location: yes
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Treacodactyl Downsizer Moderator
Joined: 28 Oct 2004 Posts: 25795 Location: Jumping on the bandwagon of opportunism
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tahir
Joined: 28 Oct 2004 Posts: 45612 Location: Essex
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Treacodactyl Downsizer Moderator
Joined: 28 Oct 2004 Posts: 25795 Location: Jumping on the bandwagon of opportunism
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tahir
Joined: 28 Oct 2004 Posts: 45612 Location: Essex
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dpack
Joined: 02 Jul 2005 Posts: 46052 Location: yes
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