400 watt wind turbine from aliexpress - installation, output test and review

These turbines look good but barely generate 10 % of their advertised output. I suspect the included charge controller being connected to the battery uses more power than the turbine can produce in an average month.
Waste of money, better off with another solar panel.
I plan to ditch the generator and bolt the blades to my own modified smartdrive permanent magnet generator, should make around 500 watts in a good wind.
To those assuming my cable is too light and complaining about tree top turbulence, please read the following to put your minds at ease -:
Turbine has no problem getting up to full speed, in fact I find the tree line ramps up and increases wind speed just above the tree tops in this location, sure there is some turbulence but when I see the blades spinning full speed I know its not a major issue. Cable loss is negligible with such a low output from the turbine -my wire gauge 4mm2, cable length 20m, max 20a advertised output from turbine 20a = AC energy loss of 20.78% worst case scenario with advertised output. Now from testing on the bench at recommended rpm with near flat 24v batt as a load, wired through the reg/rec as shown in the manual and experimenting with various loads including a 12v battery I know maximum output is more like 65w which would give me a cable loss of 3.1% not enough to worry about.

[@andyklyon]

Watching someone assemble something with small nuts and bolts on decking with gaps in it could be a new stress inducing genre for KZbin!

[@MrJohnMainwaring]

Been there done that, then used a little magnet n a string to find the *&^/# nut.

[@FlorentHenry]

Power delivered by wind turbine is a function of speed squared so a slightly faster wind might yield more power. Turbulences from the tree could cause losses. All that being said, windfarms yield an average 30% of installed capacity (maintenance, no or low wind).

[@benjaminpowell9758]

I like how you made use of the instructions, not to be read but to keep the stuff off the deck. I think a lot of us are alike! Appreciate the video.

[@fedeyoutub]

Maybe you did not read the manual, it's clearly written down to 400w, during a tornado 10 force! :-))

[@ghaithghazi6748]

fedeyoutub lol

[@blackroonney]

Make sense 🤔

[@param888]

fedeyoutub, conditions apply if the turbine survived the tornado :-D

[@dipak002]

Only if the wind turbine survives a tornado. :P

[@barrybreazynetete]

lol

[@markstevens1729]

I haven’t watched all the video yet, but based on comments, your device success rate has improved over the years. Less new crap, better results.

[@biggityboggityboo8775]

The performance is absolutely pathetic...I'm glad I saw this.

[@itubeyourass]

"performance" ? a BIG word :( thanks for the video !

[@biagmiro]

BiggityBoggityBoo k no no no one no

[@biagmiro]

it go by to no no. see seebn Co

[@highkicker11]

Well one reason the generator performs the way it does could be the feed cable length or foulty windings. He does have the basic parts now and with a bit of work might make it perform better

[@loopymind]

highkicker11 judging from how far away the turbine is to the house, it might well bee the wiring, having said that, 400watt is in the best of conditions very optimistic for this turbine

[@sneharthyadav9832]

I like the point where you said tree can be used as poles. Thank you for sharing this information

[@fernarias]

I bought four of these for my Tesla and it won't stop running. I drove all the way to Australia, whoo.

[@abdelmoumenbouhaouche303]

fernarias for a car?

[@Fallen_Angel17]

abdelmoumen bouhaouche yeah he put 4 of that on his car at last the car turn to be an aeroplane

[@nitinbalachandran7844]

U r high on meth or heroin?

[@isaactuscano7470]

I wonder how delivery guys found his house

[@williamwidener4282]

China can afford a postal service j/k lol

[@u.s.patriot3415]

GPS

[@josephking6515]

You go down the dirt track for 6km and turn left after the third macrocarpa tree. *SEMPLES!* 👍

[@frenchcreekvalley]

What were you using for a load? If you were charging a 24 volt battery that wasn't completely dead, that low amperage might be possible. I'd load it with a resistive load until the voltage dropped to 22 or 23 to really see what it can do. Besides, there will be a lot of turbulence up in that tree that might reduce the effectiveness of your 10 meter/sec wind velocity. I think that the power increases as the cube of the wind speed, so going from a 10m/sec wind speed to 12m/sec would make a huge difference in power.

[@Lardzor]

I know this is a very late comment, I just wanted to point out that resistance increases over distance. I longer the run between generator and charger, the greater the resistance. Also, thinner wires have more resistance than thicker wires.

[@silverismoney]

Looks cool, nice video. I loved your idea of pruning the trees and putting it between, very stealthy.

[@ronr4728]

Yeah no council DA required

[@trislynd1]

Nice tree climbing skills! Beautiful place!

[@MartyT]

Thanks Jess, its our little slice of paradise

[@ranjitf1]

Absolutely breathtaking view ! And surrounded by trees!

[@richardpaulson8954]

TheCuriousOne AC transmission won't help unless a transformer is used to boost voltage, but not worth it for such a pathetic output and likely is china broken or just not meeting spec. It's likely the latter, they are crooks. Five blades means rpm are lower, this means the low speed genset is expensive and large. Doesn't look big enough. Look for 3 blade if you got 10m/s 22mph wind. btw, I'm an bsee.

[@chrispi3141]

Dmitry Nechaev no you actully See that there is little loss as 25 volts reach the point of measurement. you might loose voltage but you never loose current!

[@NechaevDmitry]

You can only find it by measuring resistance of the line or the voltage on the generator and consumer, right? As I saw there was only one measurement, which I remembered as on the consumer, so what voltage is on the generator is unknown. It might be 40 volts. It is the same as Chinese 12v charger can give you all 20, assuming you'll get around 12 under average loading.

[@AnonYmous-qg4ph]

You bought a really bulky phone charger...

[@MartyT]

Lol yeah I would have been better off with a 10w solar panel

[@MRrwmac]

Marty, I hope you work on “your generator” to this tree top propeller and record it for us? BTW, great idea putting the propeller in a tree!!!!

[@KalpeshPatel78]

I thought you were going to takeoff at 3:29 Nelson. Great video. Thinking of buying myself these turbines.

[@jandevries6660]

you should buy it, install it in the right way and it will work...

[@CyberMacGyver]

The tower was 'built' years before the turbine was invented.... i love it! 👍

[@nixxonnor]

A 24V battery requires that the regulator outputs ~28 VDC @ 14,3A to generate ~400 Watts. The total resistance in the wires and load should be the equivalent of 1.96 ohms to dissipate 400 Watts at 28 Volts. If you use 2 x 20 meter gauge 17 (1.04mm^2) Copper wires between the regulator and the load, you introduce an extra 0,64 ohm resistance to the system that will steal 130Watts of the total 400Watts, leaving only 270 Watts for the actual load (32.5% loss of power in the wires). The cables would also drop the voltage by ~9Volts, leaving only ~19 Volts to reach the destination (i.e. a flat 24V battery). Such a setup would be less than optimal. The moral is use short cable runs using copper wire with a big cross section.

[@95TurboCivic]

I love your answer brother But what is the best way to set this up to realize the best bang for you buck when going with this product if I decided I want to do it my self?

[@nixxonnor]

@@95TurboCivic Place the turbine up and free of obstacles where the wind speed is the highest. Use short cable runs using copper wire with a big cross section. Tighten cable terminals well. That is to reduce power loss in the cables.

[@chrisbunch3190]

I purchased a 3kw wind + 2kw solar panels. Hybrid system. the solar panels outperform the wind all the time (we are 30 deg south near the coast west Australia) The 3 blades were not balanced and destroyed the bearings, Tanfon, the Chinese manufacturers would not believe that at least the 3 blades should all be the same weight!

[@MartyT]

If they put a bit more time and effort into their design they could make a very good product, I would love to give a good review on this turbine but it is hopelessly under powered

[@michaelvanallen6400]

*1) All small wind turbines actually achieve only 5-15% of the advertised power.* *2) All practical tests show that small wind turbines hardly generate any electricity. And only at costs above 1$/kWh!* There is hardly any wind near the ground. And it is also very gusty, which extremely reduces the service life of the systems. *With solar systems, you can reliably generate electricity for about 3-10 cents/kWh over a period of 25 years!*

[@nixxonnor]

The wind turbine/regulator combo seems to be the "Morning Group" model S2-400W at aliexpress. It is stated in the specs (graph) that the system should generate 400W at wind speeds above ~10.8 m/s. The regulator's nominal voltage is selectable 12 or 24 VDC. It seems that you have not put enough load on the DC output from the regulator. If you did, the voltage should have dropped way below 25 VDC, which is actually a higher voltage than the max nominal 24V output. Next time try connecting a battery that is not close to fully charged :D You could try to connect a 2 ohm power resistor and then measure the voltage drop across the load while measuring the amperage going through the wires at the same time.

[@jacobdavis000]

You said what I wanted to say, way better. I commented about the batteries having low load current too. lol. If the voltage is up then it's a problem with the load.

[@ohger1]

Right across the street from my house, the backyards of those homes have a pretty good moving stream running through them. Boy, would I love to tap all that wasted energy..

[@MartyT]

Yeah hydro is the way to go if you have access to a stream, power 24/7 means less expense on storage batteries

[@eugenepohjola258]

Howdy. My suggestion only. Throw the regulator at a flock of mallards. Three phase rectify the output and use a car stereo power capacitor to filter the output. Finally use a power step up/down voltage booster and adjust for an output voltage of 14 V for a 12 V battery. During stronger winds the generator output will be way over 14 V. The step down booster will transform the surplus voltage into current. In weaker winds the step up will provide some charging though the generator output is under 12 V. It will transform some current into extra voltage. As said. My thinking only. Regards.

[@GadgetAddict]

Such a big generator for just 32.5 Watts. A shame because you went through the effort of getting it all setup.

[@danman4426]

and I was about to buy one of these. thanks

[@BirdWhisperer46]

I usually pass these videos by. I read 30 years ago that any wind generator will never, in it's mechanical life span, ever generate enough power to pay back what it costs to build them. LOL

[@MartyT]

Sounds about right, better off with solar these days

[@GlennLittleford]

to small to make 400 watts. maybe 150 in a gale. A lot of the cheap turbines use false advertising.

[@user-jh6vt8vx4v]

Glenn Littleford True, I see tons of these wind turbines near the coast of my home town. They are used to power the LED street light. From the light intensity of the street light, I figure is at 50 W ball park. So, There is no way to squeeze out 400W from a generator with this size and I don't care how you tweak it. I will say, the 400W claim shall be 40W. The problem of some seller on Ali express or alibaba is, they themself have no ideal what their product capable off...

[@quincyberman5629]

You could probably get more if you moved it away from the tree. The airflow should be laminar for optimal performance.

[@yves2075]

The output in watt is typically on a par with musical watts from cheapo products: divide by ten, you have reall watts. Nothing new! Sail on; buy ten of those and you'll have 400Watts.

[@crazzylee]

It might because of the wiring. Leave in 3 phase all the way up to the battery bank then convert it from 3 phase to D.C. I'll bet that's what the problem is. It's a common mistake. Remember rectify at the battery bank.

[@MartyT]

rec/reg Controller is at the battery bank

[@SedatedByLife]

That's not typical for wind turbines unless they have bad blade configurations or pitch. It was an AliExpress purchase so that doesn't shock me. How far is the tree from the house? You could be losing voltage from distance and size of cables as well as if it's a DC turbine or ac turbine. Just some ideas. It's disappointing to see that you didn't get good performance though but that's not indicative of wind turbines :-/

[@crazzylee]

Sedated By life he needs to covert from 3 phase at the battery bank to D.C. That's why it's such a low read out.

[@ImmortalShiro]

Also he didn't show how did he measured the current.. :/

[@EGGINFOOLS]

He says in other comments that he measured at the coils before the wire run.

[@ianwilson8759]

Sorry, a bit late for a comment. I love your videos and can't understand why so many posters are mocking your efforts rather than offering constructive help, but I guess that's to be expected. I think installing it within a group of trees is a big mistake. The wind would begin to divert around the trees well before it actually got to the trees. So your turbine would never function that well. Plus, you would have a very disrupted airflow. There would be lots of air pockets, which would also cut down your wattage.

[@MartyT]

The site or cable length is not the problem, It gets up to very high speed in a fresh breeze. The cheap turbine is the problem, tested on the bench I get the same abysmal results with a very short cable run

[@stylusrowm]

Nelson Bomber , I like that you are testing these import products. But I would not recommend putting a turbine in front of any object, be it a tree or a building or to close to the ground would never product good results because of air turbulence. This is why large wind turbines make more power out at sea than on land. Not as much turbulence in the airflow. 12m/s and above is the point to aim for in wind, anything below the generator will just not turn quick enough. That blade design is for whats call clean air, take it as fair away from any object as possible will create better results like high up in a pole on a ridge line for example. I am not say this will solve your issue, maybe have a read up on air flow over turbine blades and vertical vs horizontal. Coming from a engineering researcher who lives in the windiest county in Europe, wind turbines are only good if you have the right place to put them. Other wise they are totally useless waste of money. In my case a 1kw turbine in mind of a field with no tree line produces more than it advertised and it was a cheap Chinese product. The only fault I found if the generator quality is bad so it would not last long. Wish you all the best to get it working.

[@MartyT]

Air turbulence was not a problem, I ended up spinning the generator with an electric motor to see if I could get more out of it, it peaked at around 60 watts, still only 10% of the advertised output

[@THEfromkentucky]

If that's the case, then it sounds like it's just a bad generator. Would replacing the crappy generator with a good one still be worth it?

[@thangchaguite5321]

Nelson Bomber Can TV work?

[@JoeReid53]

Have you a link to your turbine?

[@MartyT]

Here's the link, www.aliexpress.com/snapshot/7306407399.html?orderId=72734064884289&productId=32284759136 would expect all those cheap chinese turbines to have similar output, I've heard similar stories about turbines from other suppliers and a confession from one supplier saying these smaller chinese turbines are just toys, better off getting a few solar panels

[@CrankyPantss]

Came over from the angry ram channel. Congrats on your success there and the new baby. Am looking forward to following this channel, too.

[@MartyT]

Thanks for subbing, all sorts of random vids planned for this channel. Hopefully there's something you find interesting :)

[@John_Smith__]

Measuring the distance between tips of the blads is not enough to ensure balance. You have to Balance the blades After they're setup correctly with correct distances. that means hanging the assembled blade with a string in the middle of the blade axis and check to see if the blade leans on either side ..then if that is the case you have to add some plumb and stick to the opposite side ..there is a video online that shows how it's done ...I've forgot the link.

[@kathleenwhite9234]

Hi Marty T can you recommend an alternative home wind turbine? Thanks for the video btw.

[@MartyT]

No sorry I don't know of any good ones, solar panels are so cheap these days that would be my recommendation

[@kathleenwhite9234]

@@MartyT That's cool thanks man :)

[@callmeshane303]

Yeah a basic mental calculation is that IF a pedestal fan can "screw" through a cylinder of air, giving X volume (swept area) by Y velocity, using volts x amperes = watts, then then to reverse it with say 20 or 30% losses, then 4 skinny little blades, being pushed around by a wind, through a wind tunnel, kind of like, even in ball park figures - sort of guesstimating, a BIG 60cm / 2' diameter pedestal fan will use say 50W..... to blow a strong breeze, then if I was to put that wind turbine in that air stream, I reckon it would be lucky to get 15W of that back out as power.... however if you bolted it to the front of a jet aircraft doing 900Kmh at 12,000 meters, SURE no doubt that you would get 400W out of it then....

[@todaywefly4370]

Yeah I figured there was an extra zero in the somwhere. 40 W not 400

[@wilfredokaw756]

Good for you. You recieved what you ordered. I once ordered the same from them last November 2016. Until now I ddnt get the item and no refund was made. You better think again when you wanted to order.

[@MartyT]

Yeah by the time this arrived it was too late to return it, the return window had expired

[@markbrown3587]

- If the item does not arrive before the return window click the ask the vendor to extend button and if they don't cancel the order and AliExpress will refund your money no questions asked. It helps to learn how the system works as it is a little complex but super safe. - AliExpress holds the money until the return window or you click the accept button then they give it to the vendor. Think of AliExpress as the international version of Amazon except its all vendors and nothing directly from AliExpress.

[@jackm6307]

Just a general thanks for going to the trouble to save people form getting conned.

[@nunyerbeeznaz2906]

With that style of blade,the return is minimal due to rotational torque needed to transmit power. A Savonius turbine is about 40% effective. Transporting power like than,your'e better off controlling,storing,then inverting to AC power,as it "Travels" better. DC drops a crapload over a short span,where 110vac loses very little unless the wire is tiny. I put my panels in the yard,instead of on the roof,and had to seriously think whether to invert across the yard and travel the 110vac,versus 40 feet of #2 copper. We went copper.

[@BenderBendingRodriguezz672]

i think the wire diameter is to smal for the long distance. you cant transport low voltage without losing energy .

[@MatHelm]

You can if it's AC. Relatively speaking of course.

[@BenderBendingRodriguezz672]

@@MatHelm yeah everybody knows it but the generator in the video is dc

[@skoto.power.systems]

@@BenderBendingRodriguezz672 please no it a 3phase AC alternator then the converter converts it to DC

[@kotysoft]

Maybe they used chinese units in power. Try to convert them to SI units (simply divide by 10) :) Chinese 400 = global 40. Just like in every other products and measurement units. 20Mpixel chinese camera = 2MPixel real. etc... :)

[@MartyT]

Haha That sounds about right

[@dmd8552]

That applies to clothing as well. XXXXXL is equal to a US Large.

[@Headcase0570]

Don't forget those miracle powerbanks, 50000 MAh for $2!

[@TigerLeadFont5]

Power banks are the exception to that rule, you divide by 100.

[@TheKarabala]

Hahahahahhah

[@laoluu]

The 1.3A @ 25V are the DC output for charging a battery, right? But - - you still have the 3-phase AC from the turbine. Did you connect anything there, aside from the battery charger? You'd probably get extra power from there.

[@metou3072]

You can add more resistance to the wind turbine by increasing the voltage being used by the batteries to generate the electricity... the more resistance to turn the blades equals more electricity made..your increasing the strength of the magnetic field being used to produce electricity

[@coachwilson5967]

Thanks for the post. These might charge a cell phone but that's about it. Still looking for a 3500-4000W unit to assist the powerwall at night for my off grid home.

[@coachwilson5967]

@@MrSummitville up on this hill SE of Reno it's pretty good. 15-30 mph

[@mauriceupton1474]

Hope you put a one star feed back for the sellers, and to warn other buyers

[@jeremywestern7067]

So you need a constant hurricane for that thing to power the light bulb in your refrigerator???

[@MartyT]

Pretty much yep

[@misiumaniak6796]

It is not disappointing, this is the well known truth about wind turbines. May be some days in the year it gives the nominal power.

[@bobsugrue2983]

I was about to buy one of those but I won’t be now thanks for the video but I do need one hope you find a good one

[@DKTAz00]

How long and thick was your conductor wire? could create considderable losses

[@sajidashraf7059]

DKTAz00 pric

[@smellysam]

Yup, DC does not like to travel, the inverter should be as close to the source as possible (in the tree?). In any case, this turbine is better suited for experimenting than actually depending on it.

[@MartyT]

Plenty thick enough. Generator output is so low, cable thickness is irrelevant. I have tested generator output at the windings on the bench with same results.

[@shawnio]

you're an idiot

[@greenidguy9292]

“Long and thick” 😂😂😂

[@alimakbuz5929]

To get 400 watt in 12 Volts, you need around 17 Ampers ! That means you need a cable as thick as your wrist to carry it properly outdoors without much loss. If you convert it to 110 Volts close to the trubine, you'll only have 3,6 ampers max and normal household wiring will do ok. In fact, all types of outdoor wiring has significant losses so its better to produce power as close as possible to the point you use it.

[@MartyT]

Lol, a cable the size of a babys little finger would be plenty to carry 17amps over a 12 metre run.

[@alimakbuz5929]

@@MartyT you'll lose power with a cable that tick. Cable gets heated by the energy turbine produces. You may not realize the heating since the air outside will cool it back. Thinner the cable, more the heating, and more power goes into the air before reaching the end of the cable.

[@MartyT]

I know all about cable loss, I've been living off grid for over 15 years using solar and hydro power. Cable loss was calculated to be 3.1% Read the video description for more info.

[@FigJamRu]

I have been experimenting with wind turbines for the last year ,and i will say i thought my turbine was no more than a wind chime until i changed the really cheap charge controller for a high quality hybrid and right now my computer which i am on and the rest of the house is running on only 8 panels and the wind generator,and so my guess is you need a quality charge controller and then you will have no problems. Its easy to get off grid 12x 2 volt batteries 8 panels and a wind generator im loving it no bill!!!

[@alexbilenkin3418]

what controller you use?

[@FigJamRu]

I am using an unbranded hybrid charge controller which will handle up to 600 watts of input from the wind generator side but importantly it is an MPPT controller . My first controller was a solid state controller just like the one in this clip on the floor at 105 ,and now my opinion of these solid state controllers is that they make good fishing sinkers, I will make a clip soon of my vertical axis turbine and controller cheers

[@jacobdavis000]

I know this is an old video, but I just thought that it sure doesn't look like a very good propeller shape. The blades don't look much like airfoils. Also, whatever the power rating depends on the load amps and those can't really be controlled by the supply side. So if the amps are low then it's possible that the load is not taking enough, for whatever reason. Maybe batteries need higher charge voltage.

[@ripprind]

"Now from testing on the bench at recommended rpm with near flat 24v batt as a load, wired through the reg/rec as shown in the manual and experimenting with various loads including a 12v battery I know maximum output is more like 65w"

[@raoulman1]

the indicated power is almost every time for a wind's speed of 50 Km/h = 13,9 m/s. it is enormous. People don't realize. This speed is the maximum speed of your turbine, if bigger, the controler regulate turbine's speed, (brake function) if not, it's electrical annihilation of your setup, it's overcharge. I believe than if wind's speed double, his power is 4 times more, it's not proportional. these informations need to be confirmed.

[@metalwood7225]

Hi there Nelson, thanx for the video review on the product... did u manage to find any other turbines that suited your needs? or DIY? am looking one for myself

[@MartyT]

Hi Dennis, No I came to the conclusion that solar is the way to go, much more reliable, less maintenance and lower installation cost.

[@metalwood7225]

thanx for your info Nelson, appreciate it!

[@radekfedyk4588]

What load you have used? I see that the rpms picked up massively! What was the actual voltage when you had 1A?

[@robjonas9047]

Exactly! If you're trying to charge a full battery the controller will shut it right down

[@sc1212able]

I have the same wind turbine on my sailboat and its output daily is around 270 up to 378 watts, my cables are only 30 feet long going into a mppt controller.....

[@derekaegerter9172]

The total theoretical power in the wind at 10 m/s (assuming you're at sea level and that's a 1m diameter turbine) is only ~600W... and with a top of the line turbine you can at best expect 40% efficiency.

[@CuttingEdgePowerLLC]

How much power does a 400 watt wind turbine produce? How much power does a 400w wind turbine produce per day? Is it safe to install it on the tree? Does the tree cuts the wind? Did you solve the low current output problem? How much was it? How big of a wind turbine is needed to power a house?

[@hmax1591]

one of the problems I have is that these wind turbines are advertised by watts. Watts are a unit of electrical consumption not production. these generators are being falsely sold on the pretense they can run electrical appliances that consume up to 400 watts and a steady wind. most if not all consumers buy these generators to charge batteries not to directly hook on a load. they should be sold by how much amps they can generate to charge a battery. DC generators need to be real close to the batteries, long distances of wires can really hamper the voltage that arrives at the batteries or load. That's why we used A/C in our homes. Buy wind a/c alternators not dc, convert the a/c to d/c and the end of the run.

[@questforfreedom5962]

could you try this also with a much shorter wire ? to see if you have great losses in your long cable

[@oooodanieloooo]

Wan't green energy, cut down a tree I must... WTF?

[@MartyT]

Kanuka's love a good prune, the tree is alive and thriving

[@grizzly9960]

If you said this like Yoda its the best comment on here lol

[@schwartz664]

Wood is renewable energy, I supplement my heating, with a wood furnace/boiler.

[@SuperJlonergan]

oh no he trimmed a tree......

[@95SlideNissan]

He sacrificed Clean Air the tree makes and Shade just for 32 watts what a fool

[@tigress63]

I'm just a girl who took physics and most people should know from a high school EM that the wire will cause resistance the longer and thicker the wire, the more resistance - you may wish to put the device on your roof closest to your battery storage.

[@MartyT]

You are correct about the cable resistance, however with such a low output from the turbine, cable loss is minimal, not enough to worry about.

[@cocospops9351]

@@MartyT Are you sure you aren't getting it backwards and the output is low because of the cable?

[@dtsdigitalden5023]

This one of the coolest wind-powered fans I've seen yet! :) Only Ali Express makes it possible.

[@wtbofnc7880]

How long was the power cable? You lose a significant amount of power over long distances.

[@homayounshirazi9550]

A note of caution about balancing the blades. It is not enough to ensure that the tips of the blades are equally spaced from each other. You must make sure that when your blades are suspended by a string that all blades are in the same plane. Any minor variations in the weight of each blade or imperfection in the manufacturing would make it unbalanced. You would need to adjust for this by attaching small weights until all blades are in the same plane. Using a tree branch or trunk to hang your wind turbine from is not a good idea. This is because the nearby branches create sufficient turbulance to diminish the efficiency of your turbine. Nice beach area, though! Was it Costa Rica?

[@androgabisonia2003]

Right. I have similar toy from China, but with 6 blades, 500 watt. Two years gone, but still waiting tornado, may be will get that power.

[@indigodragon7129]

Add a rewired drum motor generator with magnetic bearings with a vacuum spark gap to increase the electrical generation of a single windmill like the one in this video. ; )

[@the_hate_inside1085]

Things you buy from aliexpress, tend to be rated in Chinese watts... 400/32=12.5, so one regular watt, equals 12.5 Chinese watts, now you know for future reference.

[@philipkeiser4442]

Looks like a very efficient bird killer

[@MersyyLife]

Have you seen the wind turbine Kris Harbour Natural building made? He can get something crazy like 1300w in high winds and about 500w in average winds, the mast failed and it dropped down and hit something and exploded the blades catastrophically, but, the power he got was insane, it was an axial flux generator

[@electronicdiy3738]

nice vidéo and expérience and landscape . Try to put turbine Wind on house roof with a long bar to get max speed and try to connect the device to a gear motor in porpose to amplify the low speed to high speed and in result the motor generates high electrical energy .

[@MartyT]

I'm not wasting any more time with it.

[@matthewellul1259]

Worth assembling on the decking? I would be concerned about screws falling between the boards

[@soyo]

Tree as Tower?! It bends (you loss energy with the swinging), block your Wind and generate turbulence around...

[@mightymap007]

how do u block/generate turbulence?

[@jandevries6660]

exactly... better to put in the living room and blow with the whole family... 😂🙈

[@mariobondanza5149]

W.T.F.!!!! How much did you pay for it? Good to know, thanks. At least you have saved a lot of us from wasting their money.

[@jon4x4]

appreciate, your honest description....

[@samratdeb]

Just use a ceiling fan and add some magnets around the coil. You will get awesome volts.

[@shirazenema3228]

So ive seen many of these turbines bearings fail due to excessive wind, is there a clutch of some sort for this situation?

[@mepanousispanousis6784]

You have to provide us the material and diameter of the wire you used , and also the distance of the wire. Ex. Distance = 100 feet , Wire Material = Copper , Wire diameter = 26AWG (0.4 mm) , Voltage = 25v , Phase = DC , load current = 1.3 Amps Results Voltage drop: 10.61 Voltage drop percentage: 42.44% Voltage at the end: 14.39 You should not use a battery as load because the resistance of the battery is changing when you change it. Imagine if you want to transfer 25v and 10 amps (250watts) you need a wire fat as you finger to achieve 1% voltage drop. Practically we dont transfer low dc voltage energy for more than 1 to 3 meters . Do the test again close to your house and use car bulds as load .

[@Admiralhall2000]

The problem with wind turbines is you need u=11 m/s for 75% of the time and clean air flows. Forests are unsuitable

[@SpaceMusicOutofWorld]

Environment-friendly energy by cutting a part of a tree! Nice!!!!!!

[@MartyT]

Kanukas love a good pruning.. the tree is doing well ;)

[@SpaceMusicOutofWorld]

@@MartyT Thank you for your reply. :) It's clear now.

[@macrumpton]

400 watts probably in a 40mph wind. Keep in mind the power available in the wind goes up the square of the wind speed. 3mph is 9x and 5mph is 25x and 10mph is 100x

[@UCreations]

Force goes up by the the square of the speed. Power goes up by the third power. With such a small wind turbine you'll get 100W max at 10 m/s if it is very efficient. Higher wind speeds can lower the efficiency.

[@indigodragon7129]

Construct a support pole and fill the inside with organic carbon power cells connected in series. Then have solid state graphite power cell bank in the base. Then you will not need a battery bank and you can always have electricity with wind or without wind.

[@jeffarp7409]

I guess you would have to have hurricane force winds to get the 400 watts it said it was capable of . Was that a harbor FREIGHT wind mill? Because I was wondering about them myself.

[@pcamanagementservicessrl2564]

the same happened to me with a 500 watt 24vdc it is really disappointing and frustrating web market should make sure product they place on their webpages have a true output, I bought a Happy wind turbine and requested to be refunded I have a piece of junk with no use, I will keep searching for a working one, the worst is that they even place false review on their product line.

[@ExperienceCN]

Many street lamps in china have this wind turbines. They all broke down after a few weeks

[@pcamanagementservicessrl2564]

I couldn't agree more Marty.

[@MrBobWareham]

Looks very nice but the bolts look small for the blades and I didnt see any Loctit for the threads will they come loose later on

[@liamhoanzl2920]

Hi is it still working ?

[@amazingvidguyz]

Before we talk about the performance, we need to know what cabling etc was used. It could be much of it gets lost in the cable ? what wire size and length do you have ? Not hating, would just like to know if the turbine is ok or its today with wire size / length etc. Ideally measure it at the turbine end to rule out loss.

[@dguy-xk4fc]

WOW now that is a good test i almost bought one of these.. i did not expect it to work that bad this is rediculous! Thanks a lot this is some gold info man.

[@tristynleetl]

looks cool, ineffective in functional. how do you expect to put out any voltage with that long of a cord?!

[@fatboy19831]

Thanks......lets me know what to expect.

[@tonybalm1513]

Long cables = Resistance = Voltage drop + Current (Ohms Law)

[@MartyT]

Read video description, cable loss was calculated less than 5%

[@f450fpv7]

Thanks for letting me know. I was almost buying.

[@doomman700]

Did you check the output at the turbine? How many feet of wire loss do you have?

[@debendragurung3033]

The only electronic u should buy from AliExpress is mobile Phone cases. By the way how can you expect 400watts from blades that size.? Besides, the cost of installing wind turbine generator of capacity 1kw or lower, isn't justifiable enough to even exist except for experiments and hobby. Wind turbines doesn't scale up linearly, but exponentially with increase in diameter.

[@takeomarcio]

Hello... congratulations to your chanel... i see this vídeo and i Have a question: do You use a pwm converter? If use , i recomend to use a real mppt converter... think about this... tks

[@Luong_Thien_Hung1988]

Thank you. Your video is very cool and useful. My name is Thien Hung, I am in Vietnam. Glad to be friends with you.

[@myspace5671]

Lol bro, you that lonely...!.?..

[@mickbmx]

Thanks for the vid. Guess solar is better if you don’t have land or a stream.