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life in earth

Homemade wind turbine with Pic added

Hello, we made this wind turbine with parts we bought off of ebay and a local home improvement store for under $150 including the pole and all the wiring to the battery bank. It is a 700 Watt turbine, that we hooked up to a 24 volt battery bank using 2 12volt batteries. We have been using it as a test case for right now. It is powering all of our outdoor garden lights and has been doing a good job so far. At 10mph it is producing 12volts and at 20mph we get 24volts. Its just a start but for under $150 we are happy. We plan on putting plans and a video on how to make this turbine up on our site within the next month.

Thank you

Life in Earth

http://www.lifeinearth.com
RichardW

You must live in a very windy place. 20MPH is just under 9 Meters Per Second. Here wind speeds are averaging around 6mps.

Have you actually measured the amps or watts when its working?

To charge a 24v battery you really need 28.8v

Are they power lines in the pic?

Richard
resistance is fertile

I know where you are coming from Richard, but its messing about with bits and bobs like this that can open some peoples eyes to what is possible with micro renewables and also just how much of it you can do yourself.

Im all for it Very Happy and if it runns the garden lights then its doing its job.
jema

Anyone notice that the company doing the home wind turbines for B&Q went bust?

If you recall they didn't really work.
RichardW

They went bust a while ago. B&Q offered everyone their money back.

The thing is IF B&Q had listened (it on record that they were told) to the experts for wind power & not the sales bumf from the company they would never have sold them.


Dont mean to knock DIY efforts at all. Just design it for "your" situation not a book spec. It might be doing what it was made for (garden lights) but is it keeping the bats in good condition? Also no mention of any controller or dump load.

2 x 12 v bats linked to make 24v is prob about 80-140amph. That 700w turbine is nearly 30amps at full tilt. You could have some serious over charging with that set up with no controller. To have no controller you would have to have less than 10% of bat capacity whilst the OP has 21.4 to 37.5% ish.


Tell us more about the specs.
boisdevie1

Wind power is great. BUT. After you take into account the energy and time and money involved in making this wind turbine and battery setup just to power garden lights is it worth it? And I'm not trying to be a killjoy.
resistance is fertile

boisdevie1 wrote:
Wind power is great. BUT. After you take into account the energy and time and money involved in making this wind turbine and battery setup just to power garden lights is it worth it? And I'm not trying to be a killjoy.


Compared to what?

Mining for coal, transporting that coal to a power station, the build/running/decommissioning costs of that power station, the work involved in nationalising the grid and then delivering that little bit of energy to your house and the cost of providing, administering and maintaining that supply.

fair enough, it might not be the most efficient way to provide power to garden lights but its clean, independent and transferable/extendable.
RichardW

resistance is fertile wrote:


Compared to what?



Not having garden lights?

Not like they are essential is it?

Now if it was the house lights it would actually be offsetting some grid power.

Oh & as the OP is SELLING the instructions this is SPAM.

vegplot

Re: Homemade wind turbine with Pic added

life in earth wrote:
Hello, we made this wind turbine with parts we bought off of ebay and a local home improvement store for under $150 including the pole and all the wiring to the battery bank. It is a 700 Watt turbine, that we hooked up to a 24 volt battery bank using 2 12volt batteries. We have been using it as a test case for right now. It is powering all of our outdoor garden lights and has been doing a good job so far. At 10mph it is producing 12volts and at 20mph we get 24volts. Its just a start but for under $150 we are happy. We plan on putting plans and a video on how to make this turbine up on our site within the next month.

Thank you

Life in Earth

http://www.lifeinearth.com


This is a good example of what can be achieved on a budget. While the powering garden lights may not be considered to be highly relevant or practical it demonstrates what can be achieved for minimal financial outlay using off the shelf parts and a little ingenuity.
resistance is fertile

Re: Homemade wind turbine with Pic added

vegplot wrote:
[This is a good example of what can be achieved on a budget. While the powering garden lights may not be considered to be highly relevant or practical it demonstrates what can be achieved for minimal financial outlay using off the shelf parts and a little ingenuity.


This is exactly the point I was trying to make.

First stop garden lights next stop house lights, next stop off grid freedom Very Happy
boisdevie1

Re: Homemade wind turbine with Pic added

resistance is fertile wrote:
vegplot wrote:
[This is a good example of what can be achieved on a budget. While the powering garden lights may not be considered to be highly relevant or practical it demonstrates what can be achieved for minimal financial outlay using off the shelf parts and a little ingenuity.


This is exactly the point I was trying to make.

First stop garden lights next stop house lights, next stop off grid freedom Very Happy


So you can power your garden lights for almost 150 quid a year. Do you need garden lights? And going off grid is very very expensive if you have to buy batteries. To me spending 150 dollars (plus the time etc etc) on powering your garden lights seems very expensive.
jema

A one off cost of $150, is not £150 a year Rolling Eyes

What is the point of being so determinedly negative about someones experiments with alternative power?
vegplot

Re: Homemade wind turbine with Pic added

boisdevie1 wrote:

So you can power your garden lights for almost 150 quid a year. Do you need garden lights? And going off grid is very very expensive if you have to buy batteries. To me spending 150 dollars (plus the time etc etc) on powering your garden lights seems very expensive.


Don't get hung on the garden lights. That's just motivation for the project. The real result is the ability to build a wind generator for $150 with parts bought on eBay.

It is expensive compared to mains there no arguing that and if pure economics are your deciding factor then go mains every time.
alice

What's the problem here? Shocked
To quote the poster

'We have been using it as a test case for right now. It is powering all of our outdoor garden lights and has been doing a good job so far.'

I took that to mean something along the lines of - 'I've knocked this up, before I rush attach it to my kidney dialysis machine I thought I'd see what it could do.'

Blimey! Why is everyone being so negative?
resistance is fertile

alice wrote:
What's the problem here? Shocked
To quote the poster

'We have been using it as a test case for right now. It is powering all of our outdoor garden lights and has been doing a good job so far.'

I took that to mean something along the lines of - 'I've knocked this up, before I rush attach it to my kidney dialysis machine I thought I'd see what it could do.'

Blimey! Why is everyone being so negative?


Amen.

Off grid can be cheap to set up, is very cheap to run and frees from more than just dependence on easy to use power, as you go along it frees you from the need for most of it.
ksia

I think that's quite impressive life in earth.

It makes me want to have a go.

I've got a motor from an electric loo - I'm wondering if I could wire it up to generate, fix it to a windmill .....
RichardW

jema wrote:


What is the point of being so determinedly negative about someones experiments with alternative power?


When the purpose of the post is to sell his "how to" guide (thats grossing him $2.3 MILLION per year at the discounted price & $9.5 MILLION at full price) not to spread the word about off grid living.

Maybe my spam alarm setting is a little sensitive lately as all the off grid forums I am on are currently FULL of this sort of stuff.



Richard
ksia

RichardW wrote:
jema wrote:


What is the point of being so determinedly negative about someones experiments with alternative power?


When the purpose of the post is to sell his "how to" guide (thats grossing him $2.3 MILLION per year at the discounted price & $9.5 MILLION at full price) not to spread the word about off grid living.

Maybe my spam alarm setting is a little sensitive lately as all the off grid forums I am on are currently FULL of this sort of stuff.



Richard


Maybe it's time for a "how to + off grid" booklet?
RichardW

ksia wrote:


Maybe it's time for a "how to + off grid" booklet?


I would rather give the info away.

Richard
resistance is fertile

If people are online anyway there is no need to pay for such information, but anything that helps spark general interest is Ok with me.
life in earth

The garden lights are just what we are testing it on. I have plans to set up 2 larger wind turbines along with some solar panels when we start building our house next summer. We will be relying on producing 100% of our own electricity. We have this little set up going and it is working great. We have had a few bugs to work out and that was the purpose of doing this. Next I will be adding a 175watt solar panel that I am working on. The system is set up with a charge controller, Dump load, Blocking diode, Battery bank, and an inverter.
My plan is to have all the plans up on my site for FREE as well as do a video on it. It has been quite fun and hope to help inspire others who would like to generate their own electricity even if its just a small portion. I am a firm believer in every little bit we can do helps.
ros

So are you greenDIYenergy or an affiliate getting commission?

do you plan on giving away the info in those booklets or your own copies? Sorry, I'm confused Confused
ksia

RichardW wrote:
ksia wrote:


Maybe it's time for a "how to + off grid" booklet?


I would rather give the info away.

Richard


A not-for-profit booklet? Although stuff might be available on-line, sometimes it's just nice to have everything in a book - even if it's only to have something you can throw across the room when your 20th fuse fizzles.
shadiya

Or if you already live off grid and can't connect to the internet all the time anyway.....

I really like the internet but books are better! Very Happy
JB

For another homemade windmill ...

Malawi windmill boy with big fans

Actually I quite like the idea of a home made windmill from junk. Small turbines are not cost effective, nor even recover their energy costs in many cases but if it's built from junk I could quite fancy knocking one up and using it to charge a couple of car batteries in the shed. (wouldn't pay someone else for online plans though)
RichardW

See now thats spreading the word & pushing forward the issues without trying to make loads a dosh.
Liz in Ireland

Wish I was clever enough to make one. Haven't replaced any of my original outside lights, and have a little wind-up torch instead, but it is often pitch black here at night, and on my own outside I'd like the comfort of a garden light sometimes!
arvo

Liz in Ireland wrote:
Wish I was clever enough to make one. Haven't replaced any of my original outside lights, and have a little wind-up torch instead, but it is often pitch black here at night, and on my own outside I'd like the comfort of a garden light sometimes!


I reckon that's the point of the conversation though. I reckon its like knitting, you don't have to be clever to do it (though the results often look fantastically clever), but there is a knack, and if a friend can give you a head-start, it's surprising what can be achieved.

Theres a project I've seen somewhere with a cut up drain-pipe as blades! That kind of testing and tinkering round level is what motivates me to have a punt.

The 'have a go' thing is my favorite aspect of Downsizer.
RichardW

I did a test turbine using cut down drainage pipes. Surprisingly good even though they were cut rough as free hand after looking at a pic of one. Oh & if you are going to make one dont use an vehicle alt. Get a PMG (perm magnet genorator) or a elec motor with magnets.
arvo

RichardW wrote:
I did a test turbine using cut down drainage pipes. Surprisingly good even though they were cut rough as free hand after looking at a pic of one. Oh & if you are going to make one dont use an vehicle alt. Get a PMG (perm magnet genorator) or a elec motor with magnets.


Do you reckon the Scoraig ones where the alternator is made from car parts are any good?
RichardW

Car parts as in the brake disk & bearings?
Then yes.
(but the web site is just to messy now & its hard to find stuff any more)

Just avoid the car alternator ones. They need to rotate far to fast, use power to make the power etc. You can get them rewound to work at lower speeds but its costly.
arvo

RichardW wrote:
Car parts as in the brake disk & bearings?
Then yes.
(but the web site is just to messy now & its hard to find stuff any more)

Just avoid the car alternator ones. They need to rotate far to fast, use power to make the power etc. You can get them rewound to work at lower speeds but its costly.


My late grandmother used to work making alternators in the war. I often think when I'm in a toying with turbines mood whether I could be a***d to make an alternator hard core style. I guess you'd need thousands of turns to make it work?
RichardW

On an alt then yes but those on that site have quite low numbers on each coil.
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