1826 What Is MPPT And PWM And What To Do With A DIY Wind Turbine

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[@reallycrafty5276]

If only School Teachers today were like you.

[@reallycrafty5276]

@ab c I was talking more with regards to this gentleman's style of explaining. He makes learning fun and very engaging. What do you mean?

[@MerwinARTist]

I couldn't agree more .. Robert deserves the "Teacher of the Year" award .. every year!! 🙂

[@HtwoHH]

TRUE

[@cathere9631]

@ab c "immigrant teacher"?! WTF?!

[@MrMassivefavour]

There are some brilliant and gifted teachers, who mansge to inspire every day...DESPITE being hamstrung by a stupid curriculum devised by posh boys and despite struggling to make ends meet and despite working 12 hours a day, despite working in classes of 36/40, despite their workplace falling down and full of asbestos and despite being required to be a social worker, mental health specialist. Give the job a go... its a real laugh!!!

[@shortbuslife3440]

I'd say 90% correct as I sell them for Victron, only point I'd add is if your battery voltage is very similar to generator voltage then go with pwm if there is a large or frequent difference then go with mppt unless you're happy to lose alot of the power you generate.

[@unicornadrian1358]

Victron gear is great! I have been building off grid systems for almost 12 years and Victron is my favourite.

[@richardsandwell2285]

One thing to remember is always have the charge controller energized and connected to the battery or bank of batteries before switching on or connecting inputs like solar panels and turbines.

[@hoofheartedicemelted296]

Thanks Mr Sandwell for this very important piece of information. I'm new to this, so I'm going to write this bit of info down on a post it and hang it somewhere I keep bumping into it to keep this in mind.👍

[@richardschofield2201]

Can someone explain why. Easier to remember if you know the consequences.

[@Engineerd3d]

I had a very decent PWM controller on my solar panels. I got somewhere in the 150w range due to running a 12v system. I upgraded to MPPT and now get somewhere in the 200-280w range. It cost 100USD to buy the controller. VS the PWM controller that was name brand cost in the same neighborhood price. -150usd. If your running modern panels, which run in the 30-40v range and try to charge 12v batteries your leaving allot on the table.

[@Bigman-hi2ne]

Awesome video. Believe it or not finding this info on the internet is a total pain in the neck.

[@objection_your_honor]

I built my own using a 555 timer, a 78L05 regulator, 2 GP transistor, 2 mosfets and a handful of passive components. I needed one for my DIY wind turbine asap, and didn't want to wait months ordering one from China. Adjusted the potentiometer to stop charging at 14V, charging a 12V SLA battery. If it goes over 14V, the power is diverted to the 10 Ohm 100W dump resistor. Works like magic! MPPT is for systems > 1KW. Otherwise, you're wasting your money.

[@canberradogfarts]

Uhhhhh FALSE! Get an Arduino and learn It is literally easier than what you did. Plus, what you did is so 1976. I hope who ever is grading you project is a social studies instructor and not a competant science instructor. Really. You should be using the best, least tech thats been around for two decades, not six decades.

[@objection_your_honor]

@@canberradogfarts I was using Microcontrollers when you were in diapers little man. How old were you back in 1982?

[@mememan2344]

@@canberradogfarts what he did cost pence and works exactly like you'd want it to.

[@TheInsultInvestor]

You're both wrong. Also, take your new fall apart phone controlled gen z 'tech' and shove it@@canberradogfarts

[@foxabilo]

I design custom MPPT systems for solar and wind, it really can improve performance a great deal.

[@ThinkingandTinkering]

I really don't doubt it does mate - but it does that at a cost and that cost is not always needed

[@unicornadrian1358]

The other bonus is that the higher voltage from the panels in series, keeps the amps low and reduces the wire sizes needed.

[@foxabilo]

@@ThinkingandTinkering :D cost is not always a problem when you know a guy who designs them ;)

[@foxabilo]

@@unicornadrian1358 Precisely, if your panel voltage and your battery voltage are very similar then PWM is absolutely fine, but as soon as your solar/wind voltage is significantly higher than your battery... then you can be loosing large %'s of your power, over 50% in many cases, and MPPT will intelligently buck that down and find the sweet spot knee on the power curve.

[@larsbueb137]

@@ThinkingandTinkering well than do your research better ..... mate !

[@ericblenner-hassett3945]

You mentioned the 555 Timer IC and reminded me that there is another open source use. The 555 timer for 12V battery charger. It will work with solar, wind, or other inputs as long as you add rectification with smoothing. The NE556 dual single-chip timing circuit can be used to have both the charge controller and an output controller in one chip and be done on a breadboard.

[@donniewatson9120]

Quote, "If you're getting a half of a percent for a couple of thousand dollars, you can keep it." Here, Here, I totally agree!

[@ThinkingandTinkering]

lol - cheers mate

[@EastBayFlipper]

Put the dump load resister into a sand battery and get the extra heat over an extended time.

[@JohnSmith-ih1ic]

I never run my inverter from the load side of the charge controller, I always connect direct to my battery bank...as had issues in the past of smoke escaping 😆

[@jimdaly5077]

Hi not being part of the electronic community, this video is extremely useful to me, informative & handheld information. Thank you. 👍🐝🌞

[@ThinkingandTinkering]

Glad it was helpful!

[@jimdaly5077]

@@ThinkingandTinkering you always are. 👌🌞🙃

[@rossbixley3173]

@@ThinkingandTinkering Why can't we use regenerative braking. Doesn't it make sense to add a freewheeling generator into the system ?

[@marcfruchtman9473]

Great video and the diagrams are very helpful..great stuff. It is interesting how you explain MPPT vs PWM. My limited experience with MPPT has always been associated with Solar power and trying to maximize it, and PWM has always been with controlling motors (things like VFD' etc_...) or things like dimming circuits etc... Thanks for a new viewing angle!

[@chiperchap]

Great informative video rob.

[@SLCTheElk]

Sir, Thank you so very much for the work you do! Found your channel 2 days ago and you've helped me SOO much! Love your enthusiasm and emphatic nature!

[@ThinkingandTinkering]

Great to hear!

[@angelusmendez5084]

Thanks for the master class! 👏

[@unicornadrian1358]

The interesting difference between pwm and mppt is that pwm, as you said simply switches on and off. The current can never exceed the panel current. MPPT on the other hand when it drops the voltage to match the batteries, is able to increase the current and allow more total power through. I didn’t catch this aspect in the video, so I apologise if you already covered it Rob.

[@bwfrench2616]

Please explain how power needs are determined. Say I have a 2000 watt computer running 24/7. How to calculate battery needs and generation needs. I love how simply you make it.

[@dominicmogridge3920]

thank you sir for providing us with all your knowledge and information.you've taught me a lot.stay safe and lucky.maddog.off grid,horse drawn survivalist.West cork.eire

[@ourkilkennyhomestead2006]

Great video Rob, the clearest and most concise explanation I've seen so far.

[@stewiex]

Very interesting! Thank you for this video!

[@karlmyers6518]

Nice explanation and makes it fairly simple

[@LaudCranium]

thank you for your level-headed and pragmatic advice. you have really clarified controllers for me. ta me duck!

[@PVflying]

I’d like to see more on how to make a working electrical system which is charged from a generator or PV panel. Maybe you could show us your workshop’s battery setup and how it is charged.

[@wherami]

Excellent video

[@kreynolds1123]

MPPT is about the neither the power source, or the load. It's about setting the load's apparent resistance to the source such that the maximum power flows out of the source and into the load battery and other electronic equipment. MPPT adjust the apparent resistance of the load as it appears to the source. Here is the theory. Take a solar panel, Let's say in full sun, it's unloaded output is 20 volts, and its short circuit currentb is 5 amps: 1) 20 volts/practically infinite resistance = 0 amps, and 20v × 0amps = 0 watts. 2) Or when we short it and the pannel outputs 5 amps. Then 5 amps × nearly zero resistance = 0 volts. And 0 volts × 5 amps = zero watts. At these two extreme there is no power transfered. But there is a resistance in between between ware the maximum power flows from the source and through the MPPT controller. MPPT adjust the apparent resistance of the load as it appears to the source.

[@aware2action]

Also almost all regulators involving wide range of input and output voltage/current use high efficiency switching regulators. One case PWM would work well is, if the output of the solar cell is matched to the battery voltage. The loading effect of increasing duty cycle tries to bring down the output voltage of the solar cell to the desired charging voltage. MPPT on the other hand boost/buck the voltage levels (through high freq switching regulators) to maintain optimal loading by the battery being charged. PWM is simpler and more reliable in general, but a little bit less efficient and cost effective. The same cannot be said for MPPT controllers on the market(esp. the cheaper ones).

[@canberradogfarts]

Mmmmm Yes and no. Rob isnt an EE. Heʻs a ChemE. So, you just allotropically phase transformed his stoiciometry past the vapor, triple point.

[@aware2action]

@@canberradogfarts But Rob is spot on in most cases, simple and elegant, being one of the reasons I subscribed. His conversational style, is also soothing and helps overcome sporadic dopamine deficit.

[@canberradogfarts]

@@aware2action I almost completely agree with you 100%. Which is why this was such a dissapointment. This video was too clever by half and completely wrong in fundemental concepts. Which he could have prevented had he done more homework. MPPTs are VERY old, the technology, circuitry and theory go back to at least the 1950s. Ampldynes and mag amps are still in manufacture today that were originally designed during, WWII, USING MPPT. Its old, its mature, and it is SIMPLE. Yet Rob missed the mark. Not out of malice or incompetance. He got ahead of himself, he got, for lack of a politely British word, lazy. Robs not an Electrical Engineer. He is a Chemical Engineer. He should have done a week or two of expl8cit homework on the subject and written a script, IMHO. fin

[@Infinion]

@@canberradogfarts he only made this video because someone in the comments was complaining that he only covers energy generation and not the portion concerned with connecting the battery/energy storage. So Rob said Okay I'll do a video. The guy is spread thin with managing the fan's whims and he is committed to daily videos covering wide ranges of topics. This topic of charge controllers for energy harvesters is widely covered on KZbin BECAUSE it is a mature technology, this is just a summary in the style of his videos and it was fine for that purpose. What this community needs isnt the most clever ideas but some form of self-organization so RMS can juggle less responsibilities. I prefer a forum, myself.

[@UndergroundLiving]

If you were using it to heat a sand battery couldn’t you hook it up directly to the heat element?

[@justtinkering6713]

If I were using it to heat a sand battery, I would take advantage of the Lenz effect and just heat a copper plate and use a heat exchanger to extract the heat.

[@ibme8359]

Dump Load (5:45) I'm gonna dump my extra into a chiller and cool my beer! Why waste that power!

[@seelenschlucht]

The video was very much interesting to me since i have very little clue how electronics work. It was also the point where i was stuck. I didn't know what to do with all that windpower on the roof of my gardenshed.

[@John_B55]

Or for a small wind turbine, just use the AC directly by connecting it to a resistive load like a heater (in a sand battery) and cut out the rectifier/charge controller completely.

[@adamoshea2793]

Cool idea I am currently working on a project at the moment that needs constant 35 degree water for the system to operate and wondering would a small wind turbine with a sand battery be a good alternative instead of just heating it up with electric from the grid. Once the sand is at its max temperature that it can store how efficient is blowing cold air through pipes in terms of what percentage of energy is transferred from the sand into the cold air each second. Would this system be an effective way of keeping water at 35 degrees c 24/7

[@mfr58]

The other good thing about mppt is that you don't have to match your battery voltage to your input voltage, which can be quite useful. I've got 67volt of solar module with a 24V battery, which I couldn't do with PWM charge controllers.

[@cymacymulacra2301]

So let me just ask - if you ONLY had a PWM controller, would you have to shunt excesses to a power dump, like a heating element?

[@atomicsix]

here is a simple basic program for an arduino nano, to make it into a MPPT charge controller, lithium battery charger. const int voltagePin = A0; // Pin to read the voltage of the solar panel const int currentPin = A1; // Pin to read the current of the battery const int pwmPin = 9; // Pin to control the voltage/current of the solar panel const int chargingPin = 8; // Pin to control the charging of the battery float panelVoltage, panelCurrent, batteryVoltage, batteryCurrent; float batteryTargetVoltage = 4.2; // Target voltage for a fully charged lithium battery void setup() { pinMode(pwmPin, OUTPUT); pinMode(chargingPin, OUTPUT); } void loop() { panelVoltage = analogRead(voltagePin) * (5.0 / 1023.0) * (19.0 / 3.0); panelCurrent = analogRead(currentPin) * (5.0 / 1023.0) * (19.0 / 3.0); batteryVoltage = panelVoltage; // Calculate the duty cycle of the PWM signal based on the panel voltage and battery voltage float dutyCycle = panelVoltage / batteryVoltage; analogWrite(pwmPin, dutyCycle * 255.0); // Turn on the charging pin when the battery voltage is below the target voltage if (batteryVoltage < batteryTargetVoltage) { digitalWrite(chargingPin, HIGH); } // Turn off the charging pin when the battery voltage reaches the target voltage else { digitalWrite(chargingPin, LOW); } } this is just a starting point, and will need more attention to the power handling, but it is probably better than a simple 555 timer

[@TimeSurfer206]

Well, Pulsating Direct Current IS actually "Going in a straight line," it just changes the pressure behind the continuous direction periodically.

[@bradleyale]

Why not use a diode or two "in-line" between the generator and battery being charged (to prevent drainage when the wind stops)? Then, adding another pair of leads from the battery to whatever device, appliance, switch, etc you'd like to energize would complete the arrangement. This is a serious question even though I obviously don't know what I'm talking about. By the way, I love your videos- really

[@k.toddweaver6584]

That's the exact same thing I was thinking. Send the power out from the inverter, running through my entire motorhome so I will not need the brake, or dumping excess. Why not dumb it into 2 saltwater batteries to store electricity, and use when needed? QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd

[@toml.8210]

Will we be tested over this material next week?

[@BalticHomesteaders]

Great video. I’d love to see some of your ideas installed and actually powering someone’s home. Is there a way to get viewer’s installations somehow? I know for one I’d love to have a windwall or 2 about the place :)

[@SeaforgedArtifacts]

One nice thing is that MPPT can modulate your voltage from a 12-24v generator to a higher voltage like 48v and also reduce the risk of damage to lipo and li-ion batteries

[@StratRider]

This would be the perfect spot to also show the differences between pure sine waves vs modified sine waves. Modern electronics prefer the pure sine but many items don't.

[@Laser2120]

I haven't really played about with wind generation I was under the impression you needed a different type of charge controller to let the blades spin up before applying the load and also varying the load depending on wind conditions

[@cymacymulacra2301]

Great overview of basic power controllers!!! Starting to get into senior-year engineering economics, tho. Sounds like an awesome application for your ultra-robust AC carbon bacitors configured to the desired voltage range with your fractal relay array. Wouldn't that be cheap, powerful, and safe?

[@ChristieNel]

That's a nice summary. Charging can be a bit more involved, though. You may get away with just turning on and off charging to a lead-acid, but especially with lithium polymer, you typically have separate high current and voltage float modes as a minimum, to extend your battery life.

[@rcbran]

Great video content! Any chance of a DIY CO-safe tent heater?

[@jamest.5001]

With solar I prefer mppt, so the solar panel voltage. Can be much higher, for less losses in the wiring,. Pwm is fine if the voltage is close to the battery voltage, I like 2x battery voltage, atleast, or up to 3x for mppt, with pwm say 16-18v for a 12v , and 32-36v for 24 v systems, any more and the losses just multiply, most charge controllers have limits, if the voltage of the PV is pulled down much below the max power output, the efficiency falls fast, a decent mppt will keep it at a decent level, and there is good affordable mppt out there,. We need more mppt that will track turbines, a solar mppt will keep the voltage pulled down stalling the turbine !

[@Spiritman597]

Can you do something else with the extra power that your sending to the dummy load to save the power that your getting versus just dumping it ?

[@wocookie2277]

Could you hook up an electric stove element in a sand battery directly to a wind turbine?

[@jamiecleeves7921]

rob do a video on lead acid and ni cad batteries which is better your the man for it thanks

[@RCUFOinterceptor]

Can you do video: Wind to grid, with no battery system. Best buy product ans so one. 🖤

[@LifelongExperience]

Is there any easily obtainable source for charge controllers, for instance in a car or an old battery charger? I'm constructing a Darwin wind collector - mainly as a means of developing my 3D printing skills, but it would be nice if it would charge an old car battery or a couple of rechargeable torches!

[@unicornadrian1358]

Most car alternators have a regulator on the back. It might work.

[@aronbraswell1589]

now you have the 3d printers could you make a toroidal coil winder?

[@bretthorwood9396]

I've played around with wind power in Sydney Australia and most of the time the blades don't spin, due to the fact minimum wind speed is required to overcome the internal things going on in the generator. So I get much better and consistent power from solar panels in a built up area like Sydney. MMPT IS actually a buck /boost inverter eg it will incerase the voltage when below change voltage and decrease the voltage when above charge voltage.

[@larsbueb137]

no ,better wording than decrease would be translate the voltage as the voltage is allowed to rise in an Mppt idea and that is important for a turbine

[@SecretState]

Many years ago on Dragon’s Den (UK) there was a man who had developed a gear system that increase the end upturn to a 8x the out put of a normal gear system ….I wonder what happened to him he wouldn’t sell out to the dragons and decided to walk away 💚✌️

[@D-B-Cooper]

He died a trillionair by inventing over unity.

[@justtinkering6713]

Just remember, the more output gears you have the harder it is to turn the input gear. Its like trying to get your car rolling in High gear.

[@reeferbeleafer9912]

@@justtinkering6713 Best way to ruin your bike.. Leon Hatems' cogging effect comes to mind.. He claimed to overcome said friction with the effect, Interesting and worth checking out.

[@SecretState]

@@reeferbeleafer9912 that’s the guy 🤔 thanks for that I though I was going mad 😂😂💚✌️

[@reeferbeleafer9912]

@@SecretState Leon was French and died some years ago I think - was never on DD tmk. I think I know the guy you're talking about though, Richard Willis? Who knows if anything on TV is real .. at least with the internet you can compare the narratives given.. for now at least.

[@nocturnmidnight]

Awesome video. I have a pwm solar charge controller. Can I also connect a wind turbine to it? Do I have to get one specifically made for wind turbines?

[@borium]

Yes you can use pwm on wind turbines but you have to make sure you have a dump load like a heater or somthing when the batteries are full as the wind turbine needs to have a constant load on it to keep it from spinning out of control and causing damage.Some of the larger turbines will just shut down but that is a much more complicated system.I think an mppt controller is a better fit for a wind turbine as it will ajust to the power output of the wind turbine in varying wind speeds as it will ajust to a wide range of varying voltages and covert it to the voltage system you are using be it 12 24 or so on.

[@petevenuti7355]

Is there any reason you can't imagine why I shouldn't use a wind turbine charge controller with a solar system? Because I was thinking of connecting my grid tie inverter to the dump load... And drawing my power directly from the battery system. Do you see any problems with that configuration?

[@VacuumTube88]

Question: I've made a small zinc-bromine battery, put it in parallel with a small supercapacitor (made following one of your videos) and connected to a small solar stirling (is a glass tube with steel wool and partially painted black, closed with a ballon with a linear generator and a diode to rectify the output). It seems to be fine as it is, it charges during the day and lights a small led the whole night (never measured how long it would last). In the small scale I did not use a charge controller, if I want to upscale the project, do Ineed a charge controller for the zinc-bromine batteries?

[@unicornadrian1358]

If the generator voltage greatly exceeds the battery voltage, yes. Also need to make sure the current going in is not excessive, otherwise your batteries will use a lot of water due to gassing.

[@VacuumTube88]

@@unicornadrian1358 thanks

[@guywhoknows]

I had to watch twice to make sure. But if you have a full bridge rectification the battery can't back feed. Also with pwm and mppt , you missed the bucking. Volts to current.. I think that makes more sense when picking either.

[@ThinkingandTinkering]

it didn't m make sure - I said if you connect the battery straight to the wind turbine you would have problems - hence no rectifier - you are just making the point I made in the video - badly it would seem since you missed it - oh and I didn't miss bucking - this is just a guide not an instruction manual

[@guywhoknows]

@@ThinkingandTinkering I was following along at silly o'clock... I won't be watching it again to check why I got that impression ... :) I think it (buck) would be worth a mention as that is the consideration between the two. I know you said about the current v voltage tracking. But I have more people who don't understand this part of charging and types.

[@k.toddweaver6584]

QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd

[@DIYGUY1-2-3]

Hi, So..... I have an old VW Beetle generator and its VW voltage regulator.... am I good to go? Plan on fitting a fan on the generator and mounting it on a pole, will I need to gear it or work it through pulleys to increase the speed?

[@richardschofield2201]

If you have multiple chargers connected to a single battery bank, how do you prevent one charge as it raises the voltage from making another charger think the bank is full when it isnt.

[@Rcrdo072]

For wind generator wc is better pwm or mppt?

[@takyrdai2432]

diy charge controller with dump load to sand battery?

[@David_Mash]

A good brain teaser is how can we generate DC without rectification?

[@davidhartland8307]

Are y going to make a pwm?

[@brendon6589]

Now if I could just figure out how to draw energy from the Thames underneath my boat…

[@offgridwanabe]

Forget all that with a sand battery but you may need to know it when the sand battery is full.

[@jamesemery1]

much better picture quality today was yesterday just an aberration?

[@jordanbaker3148]

Hi there I have a question does a mains supply battery charger have a charge controller built into it

[@jordanbaker3148]

Could I integrate a plug into my power source

[@brad0nja]

I know that my question is not related with current video, but I have to ask... Are you assembling a Dalek? ;)

[@ibme8359]

Mechanically, How about drive a water pump directly. No worry about "Power Failures"!

[@garrylarkin433]

what about mppts ability to changr volts to current?

[@k.toddweaver6584]

That's true with MPPT a friend told me about. That it will take any extra Voltage and convert it into Amps. QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd

[@Istandby666]

The other difference between an MPPT and a PWM is their efficiency. MPPT is around 90% and the PWM is around 70%.

[@k.toddweaver6584]

QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd

[@keithfloyd1178]

Could you clarify something for people? I've live off grid for 8 years and I have 2 charge controllers for my solar panels 12 total and I have a load controller and load coil for the battery bank. My permanent magnet alternator wind generator is wired direct to the batteries. I have 2 Outback 60 amp solar charge controllers and a Xantrex C40 40 amp charge/load controller, the load controller doesn't connect to the wind generator like the solar controller does so mine is wired to the battery and to the load coil..... 4 wires.

[@tlangdon12]

Does the wind turbine alternator have a built-in rectifier? Some do.

[@keithfloyd1178]

@@tlangdon12 yes

[@tlangdon12]

@@keithfloyd1178 So you don’t a separate rectifier because there is one in the generator, and the c40 charge/load controller is act as a dump load controller to divert excess wind power from the battery terminals to the dump load. It does this by monitoring the voltage at the battery terminals. It is normal to connect the turbine directly to the batteries and then take the dump load from the battery terminals. The alternative would route the power through the dump controller, but this would create higher loses unless the controller could be located on the shortest route from the turbine to the batteries.

[@keithfloyd1178]

@@tlangdon12 exactly. I also have had a solar panel hooked direct and the load controller keeps the panel from over charging the system. I'm planning on making a sand battery heater to capture the heat from the load coil and use it at night for hot water or a room heater.

[@mattg6472]

Hey Rob have you seen these new ground battery commercials on you tube . There are a bunch of replica commercials with different people saying the same thing about this "new" power source from the ground making you independent , and emergency safe

[@petevenuti7355]

I understand high efficiency monocrystalline solar cells have a rapid drop in efficiency when used in off angle and defuse (cloudy) light, however lower efficiency amorphous cells have a slower drop in efficiency under the same conditions. Does ANYBODY test solar cells in those less than optimal conditions ? I want to know under what circumstances an amorphous cells will outproduce a high efficiency monocrystalline cell‽ If there is no consistent testing, can we start a site that would show test curves? If you are into that, we will have to come up with a plan for the "standard test condition" What do you recommend?

[@hommerdalor6301]

Hello. mr carlson’s lab did that kind of tests. Cheers.

[@reeferbeleafer9912]

Varies wildly by spec and make..

[@hommerdalor6301]

Sorry, it’s not mr carlson’s lab, I’m still searching for the video. 😅

[@petevenuti7355]

@@reeferbeleafer9912 yes it does, and by testing conditions how do you define the diffused lighting condition at what angle do you test indirect lighting at. What ever is done for rating a solar panel has to be done at some standard condition. And I would like that condition to resemble more like real life, then at a 90-degree angle on the equator on the sunniest day possible. I'm hoping some of us KZbinrs can come together define a standard and test what we have, plus we may be willing to get, and upload the results, both to KZbin and a specific website for collecting all the results. In that way benefiting all from the knowledge that the manufacturers would never be willing,or even able to coordinate, to get results on. Are you with me‽

[@petevenuti7355]

@@hommerdalor6301 if you find it, that would be great, especially if he already has a database and a standard testing condition. Hopefully he will join the bandwagon.

[@Trefuckor963]

I wish it was this easy. I tried connecting my wind turbine to my portable power station and it didnt work.

[@k.toddweaver6584]

QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd

[@canberradogfarts]

You're making this sooo much harder than it needs to be.

[@De_Raaf]

Why?

[@canberradogfarts]

Power conversion losses are what steal our hard earned (electrical) energy. Resistance, reluctance, impeadance, et. al., create heat in components. How do we minimize these losses? Carefully, with due considersation.

[@mookiemorjax]

Or if you're in a heating climate, can you just put these components indoors and utilize the waste heat as a space heating offset?

[@canberradogfarts]

pps I have loved your content since I found you in 2018. Chin up, fix it.

[@grazianoturbogas]

As always: "NOT SO FAST MY DEAR!" If for example your battery is empty, and the wind blows lightly, at first the voltage produced raises up, then your switch close, a lot of amps flows (maybe also in a pre programmed amount) and your wind turbine slows down till stop. Than the switch open up again, the turbine without load resistance turns up againg until reached the desired voltage closing the charging switch, will came back again to a full stop (or so)... Then? How do I set the amps to allow to flow not knowing how much wind is blowing? ?????????????????????????????????????????????????????????????????????????? And there falls the donkey! (As We say in Italy)

[@ThomasAndersonbsf]

seems like they need a better term for things than direct current, but maybe shifted AC with a 0 or something 0sAC? since it is basically AC waves that are shifted 50% so that the voltage does not shift back the other way, but rather shifts further in to one pole so it only reaches the "zero mark" rather than fully or partially to the other side of the mark of 0 volts?

[@canberradogfarts]

Bob, you straight up screwed the pooch on this one!

[@canberradogfarts]

ppps I just discovered your new(ish) other channel and program. Please read my previous.

[@ThinkingandTinkering]

I only really have time to reply to some comments these days mate - I am sorry I missed yours - it's not I am being an ass - well I hope it isn't - it's more there are som nay comments it's just not possible for one person to answer them all and still do something else in a day

[@canberradogfarts]

2nd L Thermo: Power can neither be created nor destroyed, only converted in form.

[@QuantumMarmalade]

Clearly Robert hasn't ever used them seriously head to head. There is no competition, for any application of charging mppt absolutely crushes pwm.

[@ThinkingandTinkering]

you missed the point mate - MPPT is better but it is better at a cost and sometimes that is not justified

[@matthewellisor5835]

Well, looks like my mention of Mike Davis' 555 based charge controller (that you can build for less than ordering a pizza and can easily scale to a household size) was memory-holed. Thanks for Fox Alpha yt. I expect that the mentioned (easily searchable) terms will provide those interested with the schematic.

[@canberradogfarts]

I made my own 1kw mppt 23 yrs ago using MML. For frogs snacks Rob, try again!

[@canberradogfarts]

"Mickey Mouse Logic"

[@paulmaydaynight9925]

everyone loved "ferranti" inverting Schmitt triggers

[@canberradogfarts]

Why is a PWM/MPPT necessary? To mimimize power conversion loss.

[@canberradogfarts]

Rob, theres this thing called COLLABORATION. Try it please.

[@canberradogfarts]

Just discovered Robs other, somewhat hidden by ewetoobs algorythm, channel and program that includes collabs.

[@canberradogfarts]

What is a power conversion loss? See the 2nd Law of Thermodynamics!

[@canberradogfarts]

Mark this one as a "Whoops." Leave it up as a (learning) lesson on why NOT to "run to the press" with the first version.

[@canberradogfarts]

Fin, peace out. Contact me Rob if you need a syllabus or outline. V/r kas

[@canberradogfarts]

Damn man make q MAGAMP for crying out loud THEN attempt MPPT!

[@larsbueb137]

Well, this video gives a false idea of what the MPPT Idea means for Windturbines , pls search for better explanations from the midnite charge controller people , there is a good video about the midnite clipper and the classic to explain Mppt

[@cyberlizardcouk]

another idiots video might be the process of connecting a turbine to the thing it attaches to, for example how do you stop the windmill falling off the post.

[@canberradogfarts]

Youve mastered storage tech. Lets go back and do basic physics FIRST. Nrg balance eq: E(s)=E(i)-E(o)

[@canberradogfarts]

Rob, you owe everyone eleven minutes and thirteen seconds, at least.

[@marcfruchtman9473]

? What are you talking about?

[@canberradogfarts]

There is no maybe. MPPT Controllers. For crying out loud, YOUR battery argument... Expesive battery that lasts 27 years Cheap batteries that last 1 year MPPT are at least 20% more efficient than PWM MPPT can be homebrewed just as easily as PWM. Use and Arduino to control IGBTs. FFS This is a no brainer

[@ur_quainmaster7901]

"you aren't going to be programming a MPPT controller" Yes, probably not.... But if you know how to ask the right questions, I'd bet ChatGPT could do it for you. I can't get over how good it is. Scary, really. A lot of people are about to lose jobs. If you haven't tried it out, you are letting the Next Big Thing™ sneak up on you.

[@canberradogfarts]

I mean, you just spent all that bandwidth "teaching" us about windings etc. Why couldnt you actually teach about magnetics PROPERLY. Hyterysis vs frequency Saturation.

[@joeds3775]

Dude. Go start your own channel. Stop shitting on someone else's parade. You don't have to watch. You don't have to subscribe. You don't have to post comments. You don't have to be a dic*. You just chose too.

[@k.toddweaver6584]

QUESTION... Can I use the same charge controller that my MPPT Solar lines come into it? I'm going to run both solar and wind generator on my property. Should I use a separate charge controller for my wind generator? Any advice would be greatly appreciated. Todd