Watch this before you buy a wind generator, My personal experience, and what to look for
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- เผยแพร่เมื่อ 12 เม.ย. 2022
- Watch this before you buy a wind generator, My personal experience, and what to look for
In this video I will be sharing a few of the things I've learned from buying and using wind turbines. Like, what designs to stay away from and what designs to buy. Also how important is the tower, and how big of a wind generator should I buy? All these questions and more Ill answer on this video, be sure and like, subscribe, share, and comment. - แนวปฏิบัติและการใช้ชีวิต
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Catch me live every Sunday @5:00 mountain time
Its funny because I figured out how to make one without modifying much at all when I was a kid. I noticed when i took one of my toy cars that had those cheap little battery powered motors that if i pushed it manually across the floor, the lights came on. One of those small DC 1.5-3V motors. So I started experimenting and I took a couple of them apart and hooked the lights to the wires direct tot he motor and manually spun them and got the light to come on. So later on I went to an old radio shack and got some larger propeller blades, grilled out their center and glued the gear part to it and took it outside on a windy day which made the lights come on. I decided to try using several of the motors and did the same thing and got help from my friend's dad to make an amplification coil, a battery to store the electricity and the lights, as well as an on/off switch. Brought it to school as a science project and got an A+. Later I took an old home fan on the same principle and created an array of those. Had the same guy help me see if I could use that all to create safe lighting for a little club house in the back yard. Had it running for a couple years. Then "someone complained" about it despite the person being a licensed electrician and reps from the power company more or less ordered it be dismantled or face some hefty bogus fines. That's when I got my first introduction to the grid scam.
Where I live there is almost no wind. So I decided to grab it and spin it by hand while watching TV. At least I am not wasting my time!
Lol
Huh. I've already decided that wind doesn't make sense at this point at my house (hope it keeps getting better), but really appreciate the discussion here and the way you're approaching it. Much more useful than a lot of the videos online (and their armies of comments from people who have no idea what they're talking about but SURE they understand all the physics).
I agree 150% ! Wind turbines are very marketable because most of people are not engineers and dream of harnessing wind which "seems" so full of power and therefore provide a lot of energy .As you point out, the power output is the SQUARE of the diameter, and for this reason high power is achievable only with big diameters ! And this requires also to be exposed to strong wind which means you need to put your turbines quite "high" in the air. For all these reasons your little 300-800 USD chinese turbine at 3m at the end of your property will produce ... 30W, 50W max ?... and not the Watts anounced, which refers to peak power under a storm !
I'm looking at getting off grid. I have a cleared location close to a lake with high winds and a one story cabin. I was reviewing the choices and don't need planning as my home is central on the land without and trees etc and the wind blasts me from two sides. I'm not an electrician so thus was helpful.
I also started with the air-x modified it to a 6 blade and removed the internal electronics, gave me about 400w output in 30 mph winds
One thing that lingers in my memory about the AirX is that the neat looking aerodynamic housing was not designed to account for ingress of moisture and that any water should have a way to flow out resulting in unnecessary rusting corrosion and premature failure, now perhaps they have dealt with this issue since my experiences were over ten years ago.
I can recommend from much experience the PMA (permanent magnet alternator) type of wind generator such as are built by Hydrogenappliances i have encountered a good number of people who used them on boats or high locations for back up power of telecommunication repeater transceivers, many instances of extremely high winds and the small units put out easily 40+amps of current. i also personally installed one in the Philippines which continues to function even after several strong hurricanes over the years.
basically there is an aray of options for wind energy and the off grid use but its up to the user to be his own engineer so to speak.
extra coats of marine varnish on the stator coils and even magnets can help prolong their life by protecting from various weather extremes.
Hey thanks for the shoutout! Everyone is more than happy to ask me about the cheap Chinese turbines but I've mostly given up on them...I can order 5 identical turbines and 5 completely different results. I've had some awesome examples and some terrible ones that all looked the same on the outside but had different stators and magnets. That you can't tell what you're getting BEFORE you get it makes it too bothersome. iSta Breeze gets pretty much all of my turbine business now...China makes other neat trinkets but when I go back to them for another turbine it's probably going to be for a "big" one :D
Great video so glad I came across it, confirmed my suspicion of the claims of a lot of the products advertised on various sites. Ha 8kw for about £260, like the old adage, if it sounds to good to be true it normally is, but thanks I can now focus on making the right choices.
..aporeciate your honest input.
I have built VAWTs for over 50 years and they meet all my expectations. They all compress air, which I store and use for power when I need it.
I'm currently working on my Tesup vertical and trying to find a inverter for grid tie, without batteries... I'm leaning towards Aurora PVI 6000
@@Themachinewon Just a heads up, Tesup is a trash company and brand; be very vary of them and their product, check everything. For one, their wind charge controller is the worst shit I've ever seen; super thin wiring for 5kw... Did you see their Trustpilot? Boycutted them over that, very far out practices. Loctite all little screws or their trash will disintegrate; even then it's probably still likely. Check the Growatt MIC series for your application though... MIC 2000TL-X or below for 50v start voltage. I'm sorry to shit on your turbine, but I wanted to tell the objective truth. Tesup might be the right choice for the right person, who knows how to do a thorough quality inspection of every little component, and how to fix the shortcomings and issues that will present themselves, but for anyone else it's definitely not.
would you tell me how you store your electrcity
@@TheMrTape ❤❤
You store compressed air for power?
I think the issue with drag-type VAWT like a Savonius is they cant generate velocity higher than the wind speed. I'd give them a wide berth from a capacity factor.
VAWT are about 40% efficient (a good one), whereas HAWT are about 60% efficient. However, on a VAWT, you can mount two sets of blades, set up to turn in opposite direction. One set rotates a tube, the other a shaft within the tube. The stator actually rotates in the opposite direction to the shaft, effectively doubling the speed of the generator. Another advantage is all the heavy equipment is at ground, so access is easy and the structure can be lighter. This approach is being trialled on offshore installations, whether it can work as well for off grid use remains to be seen
I am definitely going to explore the VAWT more in the future, I think the cheap knock offs have perhaps given these things a bad name as much as anything
It might be worth watching what Harmony Turbines is doing and just to be clear, I have nothing to do with this company whatsoever. Nearly everything you say about HAWT is called into question by this crowd and a lot of what they say makes absolute sense to me at any rate.
I read many of the NASA VAWT documents of the 70s, they stopped research. I would venture to say for commercial turbines the life time cost of VAWT is lower than HAWT. So why did NASA stop and no commercial company are selling VAWT farms. I don't count those trying to raise money and at best have proof of concept. VAWT is over a half century old well past proof stage. These are for cost v robustness and testing control.
I am amazed. You're not alone, in not shouting out why NASA stopped, lack of a robust means of control. Energy in the wind is a 3rd power of wind speed. Locking down is the only means NASA employed when the fixed frontal area and fixed blades were harvesting more energy than the generator could handle. Drag clutch/brake was their only means of control which they used to achieve lockdown. At the time speed set frequency so excitement current matched turbine to generator.
I think you have properly explain the VAWT that's good and what if you can also explain HAWT so that we can compare
The problem with VAWT is its height. The closer that you get to the ground, the wind gets much slower and much, much less powerful.
the major draw to ANY wind generator is they operate when there is wind no matter the availability of sunshine..i.e. my area gets almost no sunshine during the winter.
Went the rabbit hole of finding the best blade design and improvements for a HAWT and found through a lot of reading that DU 06-W-200 is the best airfoil with winglets similar to airplane wing tips bent towards the center of the turbine.
Quick calculations on how much will it cost to design and build one using carbon fibre filament or carbon fibre sheets and epoxy yielded a total cost of around 1500 to 1700 for a 700w wind turbine including charger, inverter etc.
Mean output over the course of a year - 100w/h, ROI - 7 years, not considering maintenance.
This is for a turbine designed to pull the most out of the wind available ( mean 5-6m/s for the whole year ) with good quality bearings, generator and very low rotor mass, those Chinese turbines are just slapped together hoping for the best.
I'll go solar, wind is too much of a headache!
I've actually built a number of turbines ranging from small to big. The axial flux builds are prolly the best bang for the buck and are surprisingly efficient even with hand carved wooden blades.
You make a lot of good points that many people don't consider. Adding a couple more points, 1- density of air at the location is a factor. If someone lives in the Rocky mountains like I do, the air is considerably thinner than at sea level, so molecules of air passing the blades aren't as dense, thus have less energy. Number two is something I might be mistaken on if standards have changed since I researched turbines... rated power. A decade ago, the rated output was standardized at something like 24 or 26mph wind speed. Very few locations have sustained winds that high. Some sellers have a chart showing theoretical output at different wind speed, and a more reasonable 14-15mph wind offers less than half of posted rating. No one will be happy with that without doing some research. Most of the 400-500w generators are useless in the most ideal conditions. ...I have one, made in the USA. It just doesn't charge batteries unless it's howling out there. Live and learn. If someone thinks they need 500w to do what they want, they will need perhaps a 2,000w generator, costing quite a bit more than they were prepared for (plus higher costs for peripheral items in the build). Anyway, thanks for your video. Well done.
It takes experience to learn some of these things. I can usually tell on the comments the ones who never lived off grid.I live in a community with literally 100s of others like yourself that live off grid and they echo the same sentiments.
As almost always only the physical efficiency of single turbines is compared. But in reality horizontal axis wind turbines (HAWTs) seldom stand alone and there is quite a radius around a HAWT where no other HAWT can be placed because of turbulences created by it. With vertical axis wind turbines (VAWTs) this radius is much smaller. But not only can VAWTs be placed much more closely also their energy output can be increased by using these turbulences when the VAWTs are placed according to main wind direction and speed.
Stanford did a field test on it [ th-cam.com/video/56xW2535obY/w-d-xo.html ] [ m.th-cam.com/video/RyOmwfH5GxA/w-d-xo.html ]
The energy output per squaremile seldom gets discussed.
Another aspect, the monetary efficiency, is also not looked at. Slow running VAWTs are less stressed and technically less complex and therefore much cheaper. Since VAWTs can be placed at lower altitudes the requitements for the subsoil and foundation are far lower which makes for additional cost reduction.
Sad part: Right now industry is making good money with HAWTs. Therefore there is no interest in changing production and not much money is invested in researching VAWTs.
Excuse me but there is a flaw in your theory. The colder air becomes, the more dense it is as well. You would be shocked by how many turbines operate on top of mountain ranges.
😊😊😊
If you live in the Rocky Mountains you ought to be perfect for a windmill. Because I live in the valley I have to put mine on the pole. If you live in the mountains up on the hill you don't even need a pole.
Engineering with Rosie - she get down to the equations (at times) and explains the dynamics of wind turbines. Well worth it if you want to understand the actual engineering (rather than "how good they look")
Every objective test shows that the cheap vertical turbines produce almost no useful power.
Suggest people put some sort of wind monitor at the location of their proposed turbine - and leave it for a year, at least.
Nice informative video - thanks.
When the wind speed doubles, it contains 8 times the energy. BUT ... spinning a wind turbine twice as fast, only generates 4 times as much energy. Wind Power increases by the cube of wind speed, but a Wind Turbine's output only increases by the square of the wind speed. If you understand TSR, then you will understand why this must be ...
As well as the entropy of the system going up as the CEMF at the discharge side of the transformer occurs.
All points very well explained! Thank you.
The reason for Horizontal wind generators is nor because they are more efficient. They are not. I live on the high Veld in South Africa, we have great wind here over August/September. The problem is that the direction of the wind is not constant. Everytime a VWG changes direction it loses it's centrifugal momentum and starts all over again. Those huge wind generators are placed where there is wind from a constant direction, mostly close to large bodies of water. But here, my best option is a vertical wind turbine.
Thanks for your thoughts on this stuff. It would be great to get some evidence and Physics into it. When charging batteries, the current flowing into the battery to charge it depends upon a number of things, a) the charging voltage - if the generator is not able to generate enough voltage to drive current through a discharged battery, no current will flow. b) the current capacity of the charging generator - if it can't supply more than say 5 amps, that's all that can be supplied to the battery. c) the state of discharge of the battery - a fully discharged battery will charge at a higher rate initially, drawing less current as it nears fully charged. However (and it's a big one) a lot depends upon the battery technology (lead acid, Li ion etc) and the degree of sophistication of the charging controller. Some old lead acid type (car battery) chargers just smacked out 15 volts @ 3 A and if you have a fully discharged 60AH battery, that would take approximately 60 / 3 = 20 hours to charge. In my observatory which is powered by a 12V 100AH lead acid battery, my MPPT contoller and solar panels struggle to keep it charged between november and february (51.5 Lat) so I'm thinking to get a wind turbine to supplement the charging, but to get anything more than an amp with a small scale wt is quite hard and charging a 100AH battery @ 1A takes 100Hours of daylight - about 15 days in winter ! Nothing is easy in off grid world....
The mention in the video was the first time I heard you need to consider overcoming the resistance of the battery bank to get some useful charging .
I'm not really that well versed in electricity ... but the first thing that popped into my mind was using capacitors collecting the lower amperage , then discharging that to charge the battery bank , err a system utilizing smaller batteries with capacitors ... IDK .
Am I way off base with that being possible ... or is it simply to cost prohibitive ?
You seemed well versed in the subject , so thought I would ask you .
Wow, only one amp from your panels? They're not from harbor freight, are they?
Actually, this sounds like a great place for a wind generator since at 51.5° latitude you probably have a harsh winter where the trees lose their leaves and the wind can come ripping through. Especially at night.
If not, do you have a nearby stream??
Back in the 70s I built a Savonius turbine (vertical axis) out of plywood, pipes, sections of a couple of 50gal plastic fruit-juice barrels, power take-off via pulley, belt, and an automotive generator I got from the junkyard. Generators were a bit uncommon then as cars had mostly switched to alternators - but I wanted low speed performance. It didn't generate a lot of power (enough for 12VDC lights in the barn) - but it cost me well under $30 (70s dollars). I now know that I should have attempted a Darius turbine. The Savonius was, essentially, 'scoops' that wind could push against. The Darius is quite different: it has wings on struts, much more efficient. These days, of course, solar is the easiest choice.
I'm looking into adding wind generation to my 100% off grid system. Currently I have 2 - 12,000 watt EG4 inverters (24,000 watt total output). 12 - 48 volt lithium 100ah batteries (61,44 KWH total), 72- 460watt to 575 watt bifacial solar panels (33,120 watt to 41,400 watt total). I live in So Ca in Valley Center and have a nice early morning and evening breeze daily and would like to produce power to help my battery banks maintain charge. I find your videos very informing.
Thanks for the info!
hello my friend.thank you for sharing your knowledge and experience.you've possibly saved me wasting money on something unsuitable.I am very minimalist and am just keeping two of the decor solar battery banks,which are performing well,running off two 90w panels.I'm 650 ft up a mountain so most days we have a good stuff breeze.my finances are limited,so I will do some more research into points you've raised.I'm buying six 8yr old 100w panels.from my research I think they will still produce around 80% output,but I can get them for 50euros per unit,so I will get those,and have checked output on them in various levels of sunshine.so thanks again for sharing you're thoughts.subscribed to your channel,as you seem an honest man,and doing your best to assess the suitability of what I will purchase.stay safe and lucky and may you and yours be blessed with health and happiness.with sincerity and respect.maddog.off grid,and I run a small animal rescue centre.I play piano accordion,so between the tree surgery and busking in the street I manage to scrape by,depending on how many animals I'm looking after to rehome.onward and upwards.love and light.maddog
Very good video.
I find it amazing that people go out and buy junk, just based on the lure of advertising rhetoric and don't watch videos like this before they even think of spending any money at all.
My answer to them is to buy an anemometer that records wind speeds/data logger, that itself costs less the $40. Check how often wind speeds near you are fast enough and how often they blow, before even contemplating buying any wind generator.
Good advice
Rad video man. Thinking of putting a wind generator up for winter just to run heat and wasn't really sure what all to consider. This video saved me from a lot of bullshit I'm sure. Thank you.
I think the draw, for me anyway, for vertical generators is that mechanically they are simpler. They don't need to point any specific direction, they dont need the commutation required to steer a horizontal generator, etc. However, it's obvious that horizontal generators have had MUCH more R&D and even though they are more complex, they seem to be the better choice.
I bought a 325 watt wind turbine & installed it on my top floor 12 story apartment balcony to subsidise my solar panels. I was quite impressed to see around 12 amps being generated 15 volt max. It is capable of a bit more upto 15-16 amps. I am a Ham Radio operator & do know how to measure correctly. It was not expensive either. Only £149.95. It works for me.
What brand was it?
@@veggitarianredneck Sorry but there is absolutely no brand name either on the turbine or the manual. All I can say is that it has 5 blades instead of 3. The manual says horizontal axis wind turbine. On the converter unit it has a voltage break, generating & battery LED & is black in colour. I saw the same charge unit on ebay sold separately for £60 rated 400 watts & also does something to the magnetic field to physically slow the turbine down in excessive winds. Late Xmas day we had strong winds & it end stopped my 10 amp analog amp meter.
@@davidmorris-jones210 The channel toys for watts has purchased and reviewed alot of Chinese no name turbines and has found a few good ones. Problem is there's no repeatability if one was to purchase another. INW there's no way to tell if you get a good one or not. Sounds like you have a good one
@@davidmorris-jones210 The braking in high winds is done by literally shorting the output of the alternator, which sounds bad, but the turbine can't generate enough current to damage its own wiring so it works fine. It's simpler and less trouble-prone than a mechanical brake.
@@paulplack490 Yeah Paul I come to the same conclusion but I thought perhaps a low value a few ohms reasonable high wattage resistor would be involved. If I also switch off the battery supply to the charge unit I can hear the turbine slightly shudder as it slows.
You need to look at county regulations. Where I'm located max height of any structure is 32 feet. No obstacles to block the wind. Modeled 2 vertical axis turbines, both work. One uses a modified airfoil, and the other is the cut pvc pipe with some slight modifications. Both are self starting, which I've heard is a problem for some vertical axis turbines. I 3d printed the airfoil turbine, which blew itself apart at 35mph winds. Not bad for a 3d printed model.
Hi! Great video, thank you. I'm currently working on getting power on an off grid farm in Iceland. Would you be able to link the websites that you recommend using for buying these generators? Cheers!
There is no vertical wind turbine that really works as advertised, and small horizontal ones with fixed blades (aka without the possibility to change the angle of attack of the airfoil) are limited in energy production, as they have a too small envelope to use wind speed before they have to “swivel” out of the wind direction in order to survive.
Thank you OffGrid406 for your candid and grounded video on wind generators. I am in the pole-shift survival business and will recommend your video to my clients.
Worked , thanks a lot!
Excellent review good advice thank you
Kenny, I was a moderator on Navitron for over 12 years and we got more complaints about Ista breeze than any other lump
They were a joke. I remember them starting off in Turkey and our members buying these pieces of junk with only one bearing on tbe front. We has some good laughs but you Kenny are doing yourself no favours pushing ista breeze.
Xmork and Yenzhou Shenzhou are excellent Chinese 2kw lumps. I have been flying Yenzhou Shenzhou since 2005 and the same 2kw x 120vdc model since 2008 24/7.
As for AirX, They are pretty toys, I have tbe Marine model with silly point blades on a box in my shed for years. Try a 2kw x 48volt Xmork Kenny. Tbe furling mechanism is brilliant and very safe.., ,
Fieldlines are a very good forum.
Good luck.
Re istabreeze, surely they've improved a lot since startup 12 yrs back. My i1500 runs really well. Toysforwatts the gets great results too. Interesting that you mention exmoor. These look like really nice machines. Very conservative ratings with heavy generators, simple fueling. Cant see any reviews though?
I keep coming back to biogas as what I want to invest in . I’m glad I saw this video.
Very informative thanks for the video
Great video. Keep on. I have solar system and I would to add wind turbine. Will that possible and how.
I woud appreciate if you can provide me with diagram how that is done.
Thanks again for your informative videos
From whole incoming wind flow the HAWT uses at most 15%, the rest just pass thru it. The VAWT could use 50% but the other 50 turn into a drag. With various weird blade shapes the "engineers" try to counter that. The only VAWTs that work at best are with wind deflectors. No drag and the output is even maximized. You could even put solar on top of it.
Here’s a thought you could install a horizontal generator at the highest point of a roof. In the same way that you would have a vent for the roof and the vents that are along the soffit will let air in and out to the very peak of the roof. So through convection you’re always guaranteed a certain amount of movement or rotation.
I had installed a linear rim vent along the peak of a roof for a house I built.
It is the maximum efficiency for letting air ventilation through. Why not capitalize on it.
You could easily retrofit a whisper cool (rotary roof vent) to funnel the air into a vawt, but there isn’t much force behind convection only
@@Natedoc808 Although it doesn’t only work with convention. Even a small breeze will spin it and draw air.
@@nzs316 wouldn’t you need to have blades pitched in the opposite direction to capture flow from an external breeze as you would the internal convection driven breeze? Or would need adjustable pitch to utilize whichever was stronger.
A couple of houses down they have three standard wind turbines on masts (similar to the marine one you showed). Two are broken and the third may be. Maintenance is an issue no matter what type.
Very true, I've seen similar where I live. People definitely neglect basic maintenance.
Lucky you. I can’t wait till my Nieghbor’s 15KW HAWT breaks down
Way too noisy. Doesn’t belong in a residential area
I already have a solar system with 20 marine batteries and 1200 watts of panels. I'm adding a home baked wind charger using a 90 volts half horse DC motor. It says the amps are 5.5. When I put a cord around the 3 inch pulley and pulled, I got 79 volts three times in a row. So I figure it can make 400 watts maybe. I live almost at the top of a hill on the South side. I have a 3 foot aluminum propeller off of an industrial fan, high speed. I may try it on the motor, just to see if it will turn it. If not I will have to build a blade. I don't trust any of the wind generator products yet. There are too many people that say they don't get any power out of them. I think I can get this one to work. My uncle gave it to me to make a wind generator out of. I need to watch the video about making the pole. Well it's a start at least.
If you want output at low speed, look at the New Zealand F&P smartdrive brushless motor, it is just a large permanent magnet alternator. Unaltered they develop up to 500 volts at 1000 rpm,three phase rectified. Then use an ex AT computer power supply or commonplace SMPS battery charger for a regulated low voltage output. We lived off grid for 10 years with these plus some solar. The now plentiful dead scooter motors also make good alternators, just lower voltage and awkward to re-engineer.
What I like is a savonius in the middle of a Darius with a hawt on top on the one pole simples!!!!
Super helpful thank you
What would you recommend for a 48v system with 600ah lithium batteries? I'm just looking to add some extra to offset dark stormy days. When the weather is dark here, we have excellent wind. Thanks!
Im interested in the horizontal "ridge blade" turbines for rooftops.
Let me know what you think for northern wisconsin.
The problem with VAWTs is that in the very concrete situations where they make sense (turbulence, can't lift it a lot, migratory bird pathway, etc) most of the time you'd really have to consider if wind power makes sense for you at all. And then again it's just some very specific ones that make sense. For the vast majority of people, a proper three blade design is the way to go.
how do you get lift from a wing thats vertical? in fact, no, they dont lift at all.
@@harleyme3163 I mean that you can't lift it a lot, the system itself. In such cases the three blade design edge can lessen as they are much more sensitive to turbulence.
I don’t know how involved you are in micro wind generation.. I’ve been involved in the design of wind generators for about 25 years and there are significant advantages to vertical action, wind generators. The first being noise and the second being very often in built-up areas. It’s very difficult to put in a horizontal wind turbine because of disturbing your neighbours. In fact, there are strict planning guidelines on locating wind generators, certainly in the UK. Horizontal wind. Turbines are really only functional up to about 1.5 kW above that you need to get into cleaner air. But if you want an example, that’s a brilliant video of an Atlantic Lighthouse which is being powered by vertical action, wind turbine not only does it charge the batteries for a lighthouse. It also copes with being hit by the spray from waves.
okay as I live under the approach path of my local air port roof top mounting is out but I also have un obstructed frontage along a busy main N.S. road so both of these contribute to my non linear wind flow so I've been thinking of building a series of small ground based units along my fence line which is wire type fencing so it will not cause much if any obstruction to those currents. My only concern is the periodic turbulent caused by air traffic. Any thoughts and or suggestions ?
great info to no and learn ,thanks and true!!
I'm building my own ,
It's a 55 gallon tank cut into 5 sections , I also built my own P.M.A. ,
It makes 1200 to 1800 watts depending on how fast it spins ,
My Montana Friend ,
V.A.W.T.
Well now that you have me intensely interested in what you are doing, please, please send some pictures of the final product. If it does well for you I will gladly retract my statements regarding VAWTs, and I will include your example in a video.
I had a neighbor of mine building one just like your describing but he moved out before finishing it and I didn't get to see it.
@@veggitarianredneck , you have a EMAIL address ?
@@jimthomas777 glowbugmartin@gmail.com
Can i get the Photo too?
Video!
Thanks very good video with a lot of good information.
My Sunforce 750 watt hawt is rated at 12 volt, 25amp, at 25mph wind. I have it on my 48 foot boat and it will put out continuous 25 amps when the wind is blowing 25mph. It starts charging at 5mph but only puts out 2amps. at 10mph it puts out 10 amps. After 10 it puts out at par amps to mph. to 27 mph. when the brake engages. The rotor diameter is 56 inchs, it comes with a mppt. controller and all the bolts & bearings to rebuild it after 5 years I have had mine for over 10 years and haven't needed to rebuild mine yet, and it's on 90% of the time. When you order it you have a choice of 12 or 24 volt system and high or low wind speed, I picked low.
Stellar info my man!
Hi, thank you for the great feedback. Have you heard about Liam f1 wind turbine? What's your take on them?
Great video. It's clear you made this one as a public service. Liked and subscribed.
Thanks for the sub!
VAWTS do make sense in some situations - Wind speed is plentiful where i live but everything over 3m requires planning permissions. VAWTS can be placed at head height.
What is alluring about vertical wind generators? Overall, they don't have huge blades forward on an armature subject to great stress and blow up. Vertically, they are much more stable and should last much longer.
My preference is a vertical wind turbine that I make myself. Among other advantages, if something goes wr ong with it I can fix it because I made it in the first place and know exactly how to do so, and where to get the part(s) needed, and what tools to use. If I can make something I do not like to buy it.
Same here bro
Yes, the horizontal generators are what is used in wind farms, but that's because they can build them to be used in ideal situations: very high up with high wind speeds and more laminar flow.
When the highest you're willing to go is the top of your roof, and you live somewhere that DOES create a lot of turbulence, vertical ones are better. You might still get higher outputs from a HAWT, but you'll get more consistent output from a VAWT.
They're easier to do maintenance work on because you can keep the actual generator closer to you and they're build is generally simpler, since there's only one point of rotation.
They're also easier to make safe. A light metal mesh "fence" around it is enough to keep kids and birds away.
Lastly, it doesn't matter what kind or turbine you get, the rated power output is under ideal, high-speed conditions.
Vertical generators are just inherently safer. Horizontal spinning blades have to get high up away from people. It would also appear the vertical generators chop up less birds.
In the process of buying a home in Alabama. The utility company has charges against you using solar panels so that you are actually paying full price, but using almost none of their electricity. I realize it will not be an instant thing, but we want to go as far off grid as we possibly can and discovering your channel is helping us. Thank you!!
What options are you thinking about? Because I'm looking for a solution for my off-shore cabin on an island with low/never existing electricity...
That’s the other problem wit H wind gens. They have more pressure on them at high winds. So the mounting cost more.
The VAWT has the advantage of being aesthetically less obtrusive. You can stick the blades up in the air on a shaft, then the shaft turns the gears at the base to spin your generator. You can make it barely noticeable to the HOA Nazis and tattle-tale neighbors, while a HAWT is sure to attract unwanted attention.
I am working my way toward COOHMP, but I gotta do what I gotta do for now.
An alternative is to turn the wind direction vertical with a Darwin wind turbine. A HAWT can then be mounted at the top to spin from the air going upward. The whole thing can be disguised as a storage shed, with the louvre panels made to look like vinyl siding, and no one has to see the turbine that is spinning in the roof.
The disadvantages greatly outweigh the advantages. They need a lot more hardware than HAWTs and, since they are not supported at the top, there is a huge bending moment which has to be resisted.
Charging batteries is all about configuration and voltage. Batteries that are in a series configuration increases output voltage but has lower current capacity, the same batteries configured in a parallel arrangement have a lower voltage but higher current capacity eg; 4 x 12Vdc x 200 Ah batteries configured in a series arrangement will be 48Vdc x 200 Ah, parallel configuration will be 12Vdc x 800 Ah. Wattage = E x I= W. You simply divide the voltage into wattage ie; 120 watts divided by 12 volts = 10 amps. So, when buying a wind turbine VAWT or HAWT the output rating maybe 12volts dc @ 600 watt output = 50 amps. It is important that you should consider purchasing a wind turbine with a much higher output voltage ie; 24vdc or 48vdc, the turbine will operate more efficiently simply because it requires less torque to turn the generator and output current is a lot lower and your battery rate of discharge (load discharge) is much lower. A typical 60 watt load @ 12volt uses 5 amps, 60 watt load @ 24 volt uses 2.5 amps.
Also the vertical type is known as a Savonious Rotor.
Good video. Thank you for staying on the subject. Some yt videos are unwatchable because they beat around the bush or talk about stuff unrelated to the subject in the click bait. I'm not a patient man when it come to getting information, but I had no trouble watching your video at all. Thanks.
The future is VAWT, organized like a row of trees. Maintenance mostly at ground level. These that you are recommending, I have watched for many years, all of them are parked. They are a maintenance nightmare.
They work at night when wind is at its peak and the sun is down so you cant get a solar charge...
also in Canada winter days there are low sun days and high wind days...
Saskatchewan is the wind capitol. wind turbines are fine if your int he right climate.
My critical use case here in New Orleans is the ability to handle hurricane-force winds as well as normal wind speeds. Resiliency to hail would be next. To your point, battery storage is the next most critical consideration. Until there's a real breakthrough in battery technology, this kind of solution is hard to consider.
Well batteries are just so expensive still. In my situation it's necessary. But maybe you cam grid tie and thus use the grid like a big battery. Might at least consider a small battery system for backup in the event.
@@veggitarianredneck Batteries are absolutely necessary here in New Orleans. And the utility company is fighting against taking on excess.
I found a wind generator that I like. I'm ordering the Hurricane Vector diy wind generator kit after ten days. 24 volts, 1kw. I don't have a controller yet. I guess I will have to save up for that too. My twenty thirsty batteries will suck up every extra watt. Like pushing a herd of cows back off the fence. Lot of resistance.
Lol, let me know how the new wind turbine works for you.
Have you reviewed any smaller ones that go on to a house /building? You mention you have a large battery system…. What size is it and what do you call a small battery bank please?
I am curious about your thoughts on heat battery storage for home use?
The Archimedes Liam F1 Urban Wind Turbine????
Have you looked at this one?
Or
The Icewind made in Iceland.
I live outside of Tulsa, OK in one of the most constant wind locations.
Love to do a joint product reviews with you.
Hi. Thanks for the tutorial.
I’m wondering what kind turbine would be best on top of a thermal chimney? If you have a circular tube pointing up, with hot air coming out the top.
I have trouble picturing what the turbine blades would look like, or how to calculate their efficiency.
Thanks,
Paul
Look at the thermal fans made for wood stoves, that should give you a few ideas
lenzs 2 design
@@harleyme3163
Not sure I understand. Odd though because I’m a lens designer.
Thanks, your video just saved me a lot of time and money. I am retired and make knives. A couple of years ago I got interested in solar. So I built a system consisting of 13 Ecoworthy 100 amp 12 volt panels in parallel with a Chinese wind generator. I decided to keep it simple and use two Ecoworthy 60 amp controllers along with a Rock controler for the wind generator all wired to a bus bar which goes to the battery bank. Everything worked well until I replaced my sealed led acid batteries with 5 100 ah hr lithium iron phosphate batteries wired in parallel. I have removed the wind generator from the system.
Your video told me a couple of things I didn't know. One is how little the wind generator is contributing to my system. And the second thing I didn't know was how battery bank size affects charging difficulty. Thank you.
Now after making a second twin system which is almost done I can go back to making knives. By way of thanks you have a full time subscriber.
I routinely get sustained 20-30mph winds being right on the water of the Chesapeake bay. I was considering a Vertical axis because I thought it might be less likely to kill birds. I have lots of Bald Eagles and Osprey flying low hitting the water fishing so I'd hate to take them out with the horizontal blades. Any experience with this?
I'm not really a fan of the vortical as you might have figured.
My personal experience with HAWTs, and I've 5 of them is that I've never killed a single bird with them in 12 years.
While it's true that the virtical generators are lower to the ground thus less likely to interfere with birds. I also think that the small home style HAWTs tend to prolly frighten the birds away due to the noise they generate.
IMO there would be issues with a small residential HAWT with birds, and you would be much happier with the results.
Anybody know which of these could function in frequent 100mph wind and extreme cold?
What is the rated mph for overwind? Does it have or need a wind break feature? I had one that would tilt back on springs during extreme winds
Yes the better ones have them
enjoyed your video, thanks !
Your welcome
Hey thanks for this helpful video! I’m building a home in Rollinsville, CO and we have super strong winds of 130mph every winter. Any particularly strong HAWTs you’d recommend?
I would definitely get a wind charger with a really reliable furling system. Tower strength in those kinda winds becomes really important. Stick with the higher end brands. I don't think the cheaper models would hold up to such abuse.
Your situation cries out for VAWT.
HAWT turbines would have to furl just to survive.
It’s been discovered that VAWT turbines are more efficient in groups.
You know, rethat Helical blade doesn’t HAVE to point at the sky.
If I had your wind resources I’d build a helical blade with a wind deflector.
Most windmill will break at 60mph wind. Especially plastic prop
One only need off-road down Kingston Peak with all of the sideways trees growing out of the ground to understand the wind in Rollinsville.
I am interested in these iSTA -BREEZE on GRID , All configuration and Control boxes , MMPT cope with variable speed winds and over voltage protection , Bridge Rectifier … 3 x cost of US $480 = $1440 !
Answer this question placing the HAWT below 10m is possible to generate good output which and harmful more and cannot be implemented urban areas but thr VAWT does this even generate low voltage it can be used for street lamps or some stuffs at the end it going to save huge power now you which is best below 10m VAWT or HAWT at low wind conditions
Such good news you have, good to know, because mine turbine will make me wealthy.
Ty so very much for sharing your experience and knowledge.
It's very valuable. It's news of great public concern and importance.
God-bless you and your family Brother 👪 ❤️ 🙏 🤲 🕍 ✝️
Chief
You are very welcome, I am glad to help
Lower outputs from a charger may not charge the batteries, but it will flow to the load, so worthwhile when solar generation is low.
Why can’t you use a tractor prto type 110/220 generator with a horizontal turbine for 220 /110 on demand ? I have great unblocked wind that is very constant
Ha ha - you delivered on your promise…except I didn’t follow your directions. Already bought 3 blade horizontal Pensacola or whatever it is called (400W 13 m/s rating). I am worried about taking out neighbor or neighbor’s house with my fiberglass flagpole. Waiting to put up with 4 paracord anchors 10 feet below top unit reinforced with 2”PVC (stuffed with foam snug against pole) inside 4” PVC for 6’ mount housing on flagpole. I fear pole break so extending the load on the flagpole (or mount connection in super reinforced PVC end cap backed by extra layer of PVC set with construction adhesive). I never wrote this note if anything bad happens. It goes up tomorrow.
We don't have 45 degree roof in our country. The solar panels occupy whole roof which we can't use in summer to sleep in fresh air. I think wind turbine generator is better solution to get 24 hours eclectic. It is cheap than solar panels. What do you think about it??
Great man
Can you make a video where you talk about the VWT that you used for your title image? You showed 1 type but focused on a completely different type. I feel duped
What about town zoning that says,no tall towers,would the dirty air be the way to go,maybe 2 or 3 or 4hooked together? 🙉
Amazing video
If you integrate the power curves, you'll find that a quality vawt will outproduce a hawt if your typical wind speed isn't near the peak power output for the hawt. If you have high, consistent wind hawts are tge way to go. As a bat lover, vawts are bird and bat friendly
It is interesting to listen to you. Can you suggest me how to measure the wind flow in the most simple way before I decide to go for a house top vertical wind turbine?
I would suggest an anemometer
What's wrong with using a car alternator which produces an AC current which is rectified and regulated to a battery or batteries.
Small VAWT'S only produce small wattage.
But, large VAWT's can produce upwards of 3000 watts and getting that wattage depends on how your turbine is constructed and in an area with Gale force winds, like in the high elevations of the desert West.
Have you tried using several smaller units? It would solve the problem of getting virtually no production below 15 mph wind. Obviously, you then have to deal with multiple systems. Just curious.
the problem is that most people don't do any wind frequency measurements and expect that wind turbines will work or be economical but mostly not in most cases.
even if you think your place is windy it's worthwhile to do a preliminary measurements using local weather data in tandem with an anemometer
that's if the goal is producing energy and not just to try your hands on a small wind turbine to play with
Good stuff.