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galeforce
New Member
United Kingdom
73 Posts |
Posted - 11/12/2007 : 19:37:58
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Yes definitely one but need help to make my mind up, anyone help?
Galeforce Wind today, gone tomorrow. |
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Del
Junior Member
United Kingdom
368 Posts |
Posted - 11/12/2007 : 20:14:10
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Hi galeforce,
Help to make up your mind on whether to have one or not or just which particular voltage option?
Cheers
Del. |
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galeforce
New Member
United Kingdom
73 Posts |
Posted - 11/12/2007 : 20:18:52
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Hi Del,
yes I want one but its the voltage option that is throwing me a bit?
Galeforce Wind today, gone tomorrow. |
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Del
Junior Member
United Kingdom
368 Posts |
Posted - 11/12/2007 : 20:34:30
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Hi galeforce,
Have a read of what Chris psmith and i wrote late last week on the previous page as to our thoughts. The 12v cuts in really early (230rpm) and will produce up to 660W. The 24v cuts in a smidge later (258rpm) and produces up to 1142W. Then it's the 36v and the 48v units. The higher voltage unit needs a teeny 9rpm more than the smaller one and produces up to 140W more. The 48v unit also has the flexibility of being able to be connected to a grid inverter.
However, you need to be sure you have enough wind to blow these higher voltage PMG's up to their 370 / 380rpm cut in speeds. Horses for courses.
You should also consider the costs of the associated equipment (controller & inverter).
Cheers
Del. |
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galeforce
New Member
United Kingdom
73 Posts |
Posted - 11/12/2007 : 20:40:11
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Del,
Have you seen keithw2112 set up in his shed? he runs a turbine with solar panels, connected to 3 105ah batterys, via an inverter. Runs the upstairs and downstairs lights from this setup, this is what I want to do.
Galeforce Wind today, gone tomorrow. |
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Del
Junior Member
United Kingdom
368 Posts |
Posted - 11/12/2007 : 20:49:53
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Ok, I'd go for either the 12v or the 24v.
You can actually calculate the energy you need if you multiply the wattage of each bulb in the house by the hours they are on each day, add them all together and you'll get the total watt-hours you consume.
If you're familair with Ohms law (Ben has a good daigram and explanation somewhere on the site) then you can work out what you need to produce to slightly exceed your demand (to account for losses and a safety margin when there's no wind.
Remember that Winter is windy but summer is sunny so you can balance your turbine and solar PV production.
As to whether to go for the 12 or the 24 I'd be guided by the average wind you have where you are, but I recon the 24 is the better bet with only a slightly higher cut in.
Comments from anyone else?
Cheers
Del. |
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donniedingle
Junior Member
United Kingdom
101 Posts |
Posted - 11/12/2007 : 20:51:24
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Hi Del, can you put me down for one of these pmg's please, just to let you you all know, i'm up in the scottish highlands and running 2 x 200W chinese cheapies, and to me the best you can get, although you need to tune the blades to reduce the noise,and their only other failing is there tower, its a brittle the steel and soon cracks,around the mountings, but 12 months on and never had a flat battery bank, just looked in my diary and i reckon over the year they have produced roughly a steady 18A each,one here supplies my needs, and the other at the croft supplies lights in the cattle shed and water pumping. and thats into my 800A battery bank, and thats all my lighting my fridge freezer me electric blanket tv video, and even this pc, just spend a bit more on a good used upc, it sure levels out the peaks and spikes from the invertor, i also have a beewind 12 volt and the biggest dissapointment ever, 3 burnt out stators to date due to the gales, and 1 bent tower...lol. have tried every combination of blades on them and they just don't give what they claim, unless you live in a hurricane area. the last gales bent the blades that far back they hit the tower, i even bought different stators from blue wind early in the year and no better (these are based on the AC Delco alternator). just bought one of those 2200W stepper motors from ebay,now unless i drive it with the tractor...lol, but it is sure hard to turn, so i'm planning on a 8.1 reduction, and use 5' blades. but if you look at them a 2" wide toothed timing belt around the whole casing and then driven from the prop shaft via a 40mm toothed sprocket, but some where i read about a maximum speed for these stepper motors, so i think just let the blades go for it and gear the output down to the stepper.
but the fun and pleasure is trying and experimenting and using pooled idea's. but i'm dependent on wind for where i live, and my other croft and out buildings are all wind powered.
and another good buy are those 6V 100A deep cycle batteries on ebay, 12.50 each and 10.00 postage, 25Kgs each battery, and i swear buy them, even up here in the frost and snow. well dam i got carried away here,so i hope i have given you an insight in my hobby.and once i learn how to post picturs i'll post some.
and A HAPPY XMAS TO ONE AND ALL.
just keep her spinning.. |
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galeforce
New Member
United Kingdom
73 Posts |
Posted - 11/12/2007 : 20:53:08
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OK Del its the 24v for me then, thanks very much for helping me make my mind up del you a star. The ametek 38v I have only produces 0.5 v when I spin it by hand, any ideas?
Galeforce Wind today, gone tomorrow. |
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Del
Junior Member
United Kingdom
368 Posts |
Posted - 11/12/2007 : 21:07:58
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Ooh it's shaping up,
That means we have:
Chris psmith
BS85
Galeforce
Donniedingle
Myself
And a maybe form Victor.
We only need 5 to get the deal so we're definetely there. I suggest we leave it until mid January (Chris will have been paid then and it gives another month for anyone else to stick their paw in the air), and I'll sort out with Futurenergy the details of how we'll all place our orders.
Nice one everyone
Cheers
Del. |
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donniedingle
Junior Member
United Kingdom
101 Posts |
 Posted - 11/12/2007 : 21:13:05
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quote:
Originally posted by Del
Ooh it's shaping up,
That means we have:
Chris psmith
BS85
Galeforce
Donniedingle
Myself
And a maybe form Victor.
We only need 5 to get the deal so we're definetely there. I suggest we leave it until mid January (Chris will have been paid then and it gives another month for anyone else to stick their paw in the air), and I'll sort out with Futurenergy the details of how we'll all place our orders.
Nice one everyone
Cheers
Del.
just keep her spinning.. |
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donniedingle
Junior Member
United Kingdom
101 Posts |
Posted - 11/12/2007 : 21:15:20
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thats great del, maybe get another few and screw them down on the pricequote:
Originally posted by donniedingle
quote:
Originally posted by Del
Ooh it's shaping up,
That means we have:
Chris psmith
BS85
Galeforce
Donniedingle
Myself
And a maybe form Victor.
We only need 5 to get the deal so we're definetely there. I suggest we leave it until mid January (Chris will have been paid then and it gives another month for anyone else to stick their paw in the air), and I'll sort out with Futurenergy the details of how we'll all place our orders.
Nice one everyone
Cheers
Del.
just keep her spinning..
just keep her spinning.. |
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Del
Junior Member
United Kingdom
368 Posts |
Posted - 11/12/2007 : 21:31:36
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I've already asked them,
I'm actaully a buyer by trade so if there's any angle to negotiate anything further you can be assured I'll get it.
Cheers
Del. |
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gotwind
Forum Admin
United Kingdom
843 Posts |
Posted - 11/12/2007 : 21:54:44
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Hi donniedingle
Great to have an experienced wind power user here.
Sounds like your experience will be of great use to us lot.
Inserting images is done like this;
Cheers
Ben. |
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BushWhacker
Junior Member
Canada
276 Posts |
Posted - 12/12/2007 : 04:35:30
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I guess I should have posted this link here.
http://www.homepower.com/files/featured/HP122_pg28_Woofenden.pdf
It gives a rundown on a whole bunch of "off the shelf" wind turbines.
I hope this helps.
Cheers!
BW
Everything should be made as simple as possible, but not one bit simpler. - Albert Einstein |
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chris_psmith
New Member
United Kingdom
74 Posts |
Posted - 12/12/2007 : 06:58:03
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Also got a mate at work interested in a 24v. Del, can you confirm the price for collection instead of delivery as he is interested in one for about £120 (which is about the price without postage) and we live close to where they are based (stratford from memory), if they won't do that he will probably go for it, but saving an extra £36 between the two of us is easily worth the petrol!
Galeforce, are you doing a hawt or a vawt?
Regards
Chris |
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Topic |
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Which "off the shelf" option to go for?
