Whats the difference in harassing wind vs solar energy?
I would imagine that wind turbines needs more maintenance and do not have as high of longevity when compared to solar. I believe this because of moving parts.
Or am I wrong because the Sun Lord burns your panels and wires and batteries
Well A you have to live in an incredibly windy place, and B where are you going to put one? and C I'd imagine there are laws against building things that are very tall on your property in most places
Yes wind isn't viable to DIY. Because of the economics of scale, and also the way wind works, you need a fucking huge rotor that's very, very tall to get usable power out of it. And that's assuming you have a constantly windy location to put.
Unless you mean windmills for ex grinding wheat. Those have been used for centuries.
Yo, you can make one of those vertical turbines, also you dont NEED to live in a mountain, desu, I live in a mountain ( 30 min away from the valley) and the wind blows really not that often, thing is, where there is no forest or trees, there is good wind. And there is this one place like 5 km away from the valley, it blows every night from 5-6 pm to at least 2-3 am EVERY DAY ALL YEAR. So there is this sweet spots that you can find and place one.
Otherwise, solar is good only if you live down south I guess, or you have huge land
more money initially
more maintenance, unless you somehow never plan to get them dirty
bigger wires to transmit the dc, since even a single array can put out
something like 24v @ 29A
inverters to inter-operate with most domestic wiring
batteries, lots of them
you will need to do an azimuth track to find out where the best area
is and which area within there has the most sunlight
if your not in the tropics you will need to get some seasonal data
even then, night time
basically, solar if you're in near the equator, otherwise just putting a
panel up might not bring the returns you want.
less complex wrt solar, yes, i said less complex
can rewind a generator easily if damaged, can even salvage other damaged motors for the raw materials if ghetto,
Tesla level tech, even your retired ee granddad can fix this shit
can build them to produce ac\dc (even 3 phase)
**vawt** are much better than hawt, they are less complex, require no mechanics to
adjust them into the wind since any wind in any direction can be harnessed and the mechanical stress is lower overall,
they are just better eng designs, thank you aerospace industry!
the vawt i am planning to build only has the wind capture portion above the installation,
the actual generator and brake will be in a housing on the ground, no more climb to repair or maintain.
***wind requires braking***, i'm working on this right now for my own water pumping vawt
you do not need a HIGH wind, you just need to understand gear ratios and how lift is achieved in an airfoil
(if your gonna build it might as well take the time to build it right)
wind uses existing technology (Cu wire and either a permanent magnet or a field coil) and you can get a motor that can be
used for a gen for much less than a comparably powerful array
no moving parts != no maintenance.
dat braking tho
windmills have mechanical and noise issues but generate pretty well if you can get them elevated enough. you really want them at least 10 meters above any surrounding ground features, and the higher the better. the higher up you go, the more-constant and higher-speed the wind is.
solar is less maintenance issues (if you buy commercially-made panels!) but more outlay costs. Also, solar power drops off a LOT on a cloudy day; you may only see 10% of the power you'd get on a clear-skies day. Solar panels tend to have 20 or 25 year warranties but also tend to suffer corrosion much sooner in very-humid environments.
generally speaking in terms of small-scale/DIY generating,,,,, in a desert/arid environment, solar is better. everywhere else, wind power is better. The reason is because clouds and wind are positively interrelated, the same climate conditions cause both. And in a desert environment--a lack of clouds also generally means a lack of wind.
There's not very much different between solar panels. However, there is a huge difference between various types of wind turbines. There are even two main categories, VAWT and HAWT. And a few subcategories within that. Then there's manufacturing and design after that.
The thing is, you should pair solar and wind together. Any power generating system should have overlapping methods of generating power. This allows for quite a bit of energy buffering. If there's no wind, solar will work, if there's no sun, wind will work. If there's neither one, maybe you'll have enough energy stored or be using a 3rd type of energy generation.
Because he has no clue at all for what he's talking about. DIY wind turbines are pretty easy. The hard part and cost for small DIY systems is just energy storage being very expensive.
Living in Vegas for the last 4 years, I can say that every night we have wind for at least 2-3 hours, sometimes it's strong, sometimes not.
It has nothing to do with clouds, it has to do with hot/cold airflow and geographical position of the place, if there is woods nearby, if you are in the valley or some elevated place and so on.
Who cares? On a dead calm day I can still get my 4-feet Dopero kite up into the air and fly it high in the sky. I just have to get it x feet up where the wind is actually blowing and that requires a little bit of running, but not much really. Then I can literally stand there all day long and fly the kite until I get board.
The point is, you can't judge how windy an areas is by your own ground-level wind detection. You have to look at wind charts online. Like this for instance, http://earth.nullschool.net/ lets you see some pretty neat things about global wind currents. But, that still isn't enough for you personal local area. For instance I live in one of those very dark blue areas where there looks like there's no wind at all. Yet, everyone's tall wind turbines and my kites spin fast and pull strongly. It is great for DIY power, but shitty for politics and local government because some aspie anti-wind or ignorant fellow says "but there's no wind!"
>holy fug look at greenland's coast on that map
>Living in Vegas for the last 4 years, I can say that every night we have wind for at least 2-3 hours, sometimes it's strong, sometimes not.
>It has nothing to do with clouds, it has to do with hot/cold airflow and geographical position of the place, if there is woods nearby, if you are in the valley or some elevated place and so on.
Wind and clouds are caused by the same thing--temperature differences in the regional climate.
And the issue is not that "there's no wind in the desert", but that "there's probably more than 2-3 hours of sunlight in the desert". So for this reason--assuming that you could only afford to do one system--the solar panel setup would (probably) be the better of the two.
the above link is hardly an authority, but anyway: note that none of the claimed areas are a desert
Wind has a few issues right now. One is the market for pre built windmills is a giant mess. Three major manufacturers (outside of china and professional jobs, the later costing to much to be viable) basically lie and shit on each other and pay companies to do false reviews, comments and generally shit up the place. I have no idea who is better than who, its a right shit mess. Regulation is the hardest part. Midnite classic is the only one with a real charge controller and a dump load set up but its 2000-3000 dollars. Missouri wind and solar is the only one to figure it out yet on the cheap. They hook it straight up and have a programmable voltage sensing circuit that activates a relay. Run that to a dc heating element and you dont have to worry about it over charging. The windmill will remain under load at all times and keep it from over speeding. Do both if you can and if you live in a remote region, tall as you can. Top of a hill, tall tower. In my area there is no restriction until 200 ft. Every 30 feet increases wind speed about 20-25% on average. So a 5 mph breeze at ground can be 30 mph at 200 feet. Build the tower strong. A pipe mount is fine for 30 foot windmills but an actually triangle heavy duty radio tower with guide wires is better, much better. Hing the bottom and put a hand crank so you can easily lower it during bad storms.
I live in a semi-shitty non-wind place. The best wind turbines we have are VAWTs. They work really well and don't need high towers at all. And man do they have torque to spare. They normally never have wind speed issues.
Thanks, useful info.
But yeah if I am about ot do something it would be sunlight here in vegas, and btw have u seen the reflecting towers outside of prim, I wonder if someone could do something like that in smaller scale
>>harrassing wind vs solar energy
"Those who have been told the truth should not be taken for those who have been scorned."
Im imagining a modern day Don Quixote charging a solar panel...
Anyone who says /diy/ wind is not possible. Please stop posting on /diy/ and LURK MORE
Solar works great, you just actually need 3x as much as your napkin math indicates. If you overbuy then it is a dream. Seems like magic, like an infinite battery. You plug in, power comes out, simple as that.
If you buy exactly what your calculations say you need it is a miserable nightmare of never quite having enough power.
>video not available in US ( Just why )
It was a few years ago. Unless that isn't the original uploader or something. Also, just use youtube proxy.
You mean heliostat tracking? There are many DIY stuff on line showing how to make your own. If you plan on using a Fresnel lens on a solar panel you'll need to seriously cool the panel off, if you are using a small panel and have the focus the same size.
Really? That is really hard to believe. Here's a strange funky designed one that does just that,
Though this is over engineered as fuck. Still cool. You can do far better with a cheap motor, proper gearing, and some PVC pipe. Also, 150watts is like nothing. Most "expensive" large VAWTs I've seen are 2KW.and 3mx4m in size. That's as low as $1400. 5 feet diameter ones are around 500watts no problem for around $250-$300..
You can get 1KW with a DIY easy enough if you have the skills. The cost would be around $200 if you had to buy most of the stuff. You'll need to make your own generator though which is electronics 101 type stuff.
I suggest slapping stuff together ASAP in any size just to learn the basics quick and dirty.
Wind up some coils, make rotor and hub assembly with monster bearings, add some huge neo magnets, use pvc pipe to make fan and add charge controller.
You can get 500 or so watts pretty easy in a small package, if you don't care about your neighbors you can scale it up to 10kw or so.
There are several ways to achieve this but one example is pic related. The part with all the wires never actually moves. Coils of wires are arranged on a plate. The part that moves is second plate full of permanent magnets. As the plate full of magnets move over the plate of copper coils electricity is produced.
With a HAWT there are 2 Ways. One is splitting the motoar into two parts like in >>923134 where all the wires are on the bottom side and the magnet on the top side.
The other way is to use a slipring like in this image which allows free spinning around the metal contacts as >>923103 states with "brushes" in a DC motor.
With either method there are no wires crossing over from spinning side to non-spinning side.
With a VAWT there's no need for a slipring or split generator because the device does not need to track the wind since it is vertical instead of horizontal.
What i'm gonna do is ask a retarded question. Just follow my thought and maybe you will realize what i'm trying to ask. H-here i go.
I know that power output of the turbine mostly depends on rotational velocity of magnetic field relative to the coil. So here comes the retarded question.
Can you generate more energy via magnetic field by increasing resistance between two magnets? Like, if wind is too strong or too fast, magnets would be closer to each other thus providing more resistance for wind turbine?
A: I don't and people use them all over. You don't need mach 5 winds for VAWTs. HAWTs only need a bit higher wind speed. Frequency for wind is just a bit lower. Overall most places can have a fair amount of power generation from wind. You need to design the wind turbine for the area.
B: Do you live in an apartment or something?
C: Small wind turbines don't go above that height. they can't reach the zone where planes fly and you need light beacons and stuff. If they did, all you need to do is get a permit which is easy enough to do. Plus, you can always just use a VAWT instead of a HAWT so you don't need a tall mast.
Basically a mechanical magnetic clutching system? I've never seen, read, nor heard anything like that before. Normally, wind turbines like HAWTs will turn away from the main force of the wind when the wind gets too high. That reduces their speed. Both VAWT and HAWT normally employ electrical loads called a "shunt" used to help break the speed to a certain point or if the battery array is fully charged. Increasing the electrical load will increase the resistance and make the turbine spin slower. The shunt can be used to heat water or anything else really.
Shunting doesn't use extra moving mechanical parts. Your idea would require quite a bit of extra moving mechanical parts. The more parts you have that move in machine the higher the chance of breakdown and the more waste there is of energy.
But, it can be done, fyi.