DIY Sustainable Living

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@dotKey 2 күн бұрын

I have a different problem. Using 640wp solar panel. VOC is 25 and, 30amp in total. Also using hybrid PWM inverter with 12v battery. Currently I am getting 18-24amp from solar. Can I use 3 x20amp buck converter parallelly to improve the solar current as input of the hybrid inverter?

@diysustainableliving2774 Күн бұрын

What is the VMP?... This is exactly the place where the buck converter will be useful due to the voltage difference, however Im not sure about placing multiple buck converters in parallel. In theory it should work. Please make sure the output voltage of all are equal so that they balance each other.

@dotKey Күн бұрын

@@diysustainableliving2774 The VMP is 21v (all 3) and VOC is 25v. If I reduce the voltage I have to make it 15v approx (by buck converter), so my inverter can charge the battery upto 14.6v (the inverter app displaying that). So 21v will be reduced to 15v. Do you think buck converter may increase the current?

@diysustainableliving2774 14 сағат бұрын

I dont think you will get much of a gain here. Please note... buck converters are not as efficient as a true MPPT. Going down from 25 to 12v you should see an increase in amperage but from 21 to 15v the gain most likely will be negligible.

@ratnadeepgaikwad8492 3 күн бұрын

Amazing❤ thanks

@tariqalshammari370 3 күн бұрын

Sir, if I arrange the system as you explained in the video, relying on capacitors only, without adding a battery, at the beginning of the next day, do I have to recharge the capacitor as I did the first time, or does the system work automatically? ?

@diysustainableliving2774 3 күн бұрын

Please note... Supercapacitors store only a tiny ammount of power. That is just enought to start an induction load but not eonought to run it. If you plan to leave it un attended the whole system will collapse. This was just a proof of concept video. Even if there is a cloud over head bloking sun light it can shut down the system.

@tariqalshammari370 3 күн бұрын

@@diysustainableliving2774 I now that, My question is about if the system shot down when there are clouds or at night Do I need to recharge the capacitor?

@diysustainableliving2774 3 күн бұрын

I dont think you will need to do that. The inverters low voltage cut off is around 9.5v. So to bring the voltage to 12v you can just keep it connected. It all depends on how your inverter functions.

@tariqalshammari370 2 күн бұрын

@@diysustainableliving2774 I want us only capacitors in the system without battery , If there is no power from the solar panel and the system shut down ,and the power come back again Do I have to recharge the capacitor in the same way as the first method, or will it automatically charge from the voltage regulator and the system will return to work?

@diysustainableliving2774 Күн бұрын

It will automatically charge up but whether the inverter turns on or not depends on your inverter.

@SqueekyBums 4 күн бұрын

Tried this in England. All my food has gone off. 😢🇬🇧

@diysustainableliving2774 3 күн бұрын

Im currently in england. Thats why I havent made any new videos lately. The whether is shocking. It is either cloudy or rainy year round. That is probably the reason why there are so many wind turbines everywhere insted of solar. Solar power may be ok for an on grid system to reduce your electricity bills, but for a stand alone off grid home system it is probably not the best option. But I think in all other parts of the world you get proper sunshine.

@trywith-hesham2023 4 күн бұрын

I use this stepper to operate the inverter without a battery only

@diysustainableliving2774 3 күн бұрын

Yes you can use the buck converter in such a situation but keep in mind, the power output will vary through the day and if a cloud passes over it can lower the panel output as well. Thats why a battery or supercapacitor will help bridge these gaps.

@ratnadeepgaikwad8492 4 күн бұрын

Super capacitor using this risky?

@diysustainableliving2774 4 күн бұрын

Well if you have adequate protection devices it will actually save you a lot of money in the long run.

@ratnadeepgaikwad8492 4 күн бұрын

@@diysustainableliving2774 how can use adequate protection using capacitor. Please describe in detail next time.

@diysustainableliving2774 3 күн бұрын

The easiest option is to use the small protection boards that limit the capacitor voltage. They are cheap and effective.

@ratnadeepgaikwad8492 3 күн бұрын

@@diysustainableliving2774 Ok, Thanks Sir

@LostSoulsMed. 11 күн бұрын

Nice video. My question to this is that, does the dc buck converter don't suffer from converter collapse, in which when the batterys caoacity is large and the converter will draw more power than the solar panel produces? Does the PWM prevent converter collapse by regulating the charging voltage and current? That's the only question I had by the way this set up seems to be more efficient than using only PWM alone, cause pwm in their nature only steps down the voltage to the battery s charging voltage without converting that excess voltage to usable current, If the panels are producing 18v at 5amps, it will only step down the voltage to lets say 13v for charging a battery, and the current remains the same which is 5 amps, this set up enhances efficiency by the bucks converter converting the excess voltage (14vto 18v) to usable current, adding some usable current to charge the battery, in this demonstration your meter shows a current increse of .2amps, about 3watts of incresed power, not bad at all, and it will increase voltage increases. Good work, my only question to this, is that does the buck converter didn't suffer from converter collapse?

@diysustainableliving2774 11 күн бұрын

Hi!… Im not sure what you mean by buck converter collapse. But what happens when I connect a large load directly to the buck converter is that it draws the input side voltage ( the panel voltage) down drastically below the maximum power point. This reduces the efficiency. Thats why buck converters are not a replacement for MPPT charge controllers. However lets say you have a panel which produces 30V and you want to use it in a 12v system then you may see a benefit but as seen in the video when I am using a 18v panel the improvement is almost negligible.

@LostSoulsMed. 11 күн бұрын

@@diysustainableliving2774 yup, that moment when you directly connect the load to the buck converter and it drops the input voltage down is what I am referring to as converter collapse, and when the load connected to the buck demands more power than the solar panel is producing the whole system collapse and shuts down. You have my point, my question is when you connect that same load through the PWM NOT Directly to the bucks ouput, does the input voltage still go down or it still remains the same and only draw the available current that the buck can present to the PWM? Coz if that's true, the pwm solves the issue converters drawing more power than the panels can produce by directly charging the battery with buck converters from solar panels. Please verify my point thanks

@diysustainableliving2774 11 күн бұрын

Nope... The PWM will not help you in this situation. The PWM works like a high frequency switch. When the battery/load side voltage is low it just keeps the circuit open. However when it exceeds the fully charged voltage eg 14.4v then the frequency of how long it keeps the circuit open goes down untill it fully closes the circuit. There is no way that this will prevent converter collapse.

@LostSoulsMed. 11 күн бұрын

@@diysustainableliving2774 but how will you able to charge your battery without that converter collapsing? Does the charging current of your battery do not exceed the solar panel is providing so it doesn't collapse, have you tried charging a much greater capacity battery to see if the converter collapse will still occur? Thanks for your response.

@diysustainableliving2774 10 күн бұрын

Its like this. The battery voltage in the discharged state is 12.0v. In the fully charged state it is 12.8v and the voltage used to charge the battery is 14.4v. So all I have to do is adjust the buck converter output voltage to 14.4v to act like a charger.

@jimmyabbatuan7052 16 күн бұрын

try to consider this my own diy set up.s168 lifepo4. kzfaq.info/get/bejne/qZ2pot1_2NCWgXk.htmlsi=WsXDcFWQ1Gk9tA-8

@jimmyabbatuan7052 17 күн бұрын

it's not good to parallel lead acid batteries to lifepo4 batteries.i think,u don't know what you're doing😢😢😢

@diysustainableliving2774 17 күн бұрын

Please educate me on what I may have done wrong. The charge voltage is regulated to 14.2V which is acceptable for both type cells, and the LiFePO4 cells are behind a BMS which will disconnect when the batteries get too low. Please let me what I have missed here.

@jimmyabbatuan7052 17 күн бұрын

@@diysustainableliving2774 lead acid and lifep04 has different chemistry of charging.its n0t g00d t0 be in parallel.used 2 lead acid t0 be in parallel,s0 with the lifep04.0n the 0ther hand,u mush have ung low voltage disc0nnect.s0 that y0ur battery will autmatically disc0nnect to 12v.you will ruined your battery early as i see the voltage in y0ur set up.the charge v0ltage must n0t reached the limit v0ltage which is 12v.the DOD of lead acid is 0nly 50%.😅😅😅😅

@jimmyabbatuan7052 17 күн бұрын

@@diysustainableliving2774 pls watch filipino diy'ers t0 impr0ved your set up...

@diysustainableliving2774 16 күн бұрын

I think you are confusing the lithium cells I have for lithium ion cells. I am using lithium iron phosphate cells. Not lithium ion cells!. 100% charge state for these cells are around 14.4v, which is also the charging voltage of lead acid cells. And 12.5v is the 15% DOD for LiFePO4 level which also the 50%DOD for lead acid cells. Thats where I want to limit the usage of the batteries within thers limits. Please look at the voltage curves for the chemistries I am using and understand the rationale here.

@diysustainableliving2774 16 күн бұрын

Please read about the different types of battery cells out there and the differences in their voltage curves to better understand things. Thanks😊

@OP-fd4lh 19 күн бұрын

Very good explanation and demonstrations.

@diysustainableliving2774 19 күн бұрын

Thanks!

@robertuhrikpersonal 22 күн бұрын

please share schematics...

@rhumb 25 күн бұрын

Merci pour ce tutoriel vraiment utile...

@rhumb 25 күн бұрын

Merci pour ce tutoriel vraiment très utile, j'ai vraiment appris une bonne chose...

@diysustainableliving2774 24 күн бұрын

Glad to be of service.

@olegchernov8784 26 күн бұрын

The input is 13.65 watts and the output is 28.98 watts. How can this be? 🤔

@diysustainableliving2774 25 күн бұрын

Please look at part 2... What happens is when the amps goes up the voltage drops. This was not the expected result so thats why I made a separate video showing it in a running system.

@sunmolajuliet80 28 күн бұрын

How much for these, and also for big freezer, thanks

@diysustainableliving2774 27 күн бұрын

The price for these will vary from country to country. Please check with your local stores and on online sites for all the components.

@SlavTiger 29 күн бұрын

I didnt think a single battery would handle the current. Lithium or sla/gel?

@diysustainableliving2774 29 күн бұрын

It depends on the size of the battery. Big battery with thick wires can easily give the needed power. But if your battery is small then adding a supercapacitor bank will take the startup load off the battery.

@daniellapain1576 29 күн бұрын

I have 2 caps at 35 uf +5% 425v 60hz, would this work with this? They are meant for industrial motors originally but I want to use them for a 12v solar setup. Capacitors have always confused me on how to use them properly. It looks like the cycles increase based on voltage input from what I have gathered. My only concern is would these units store voltage up to that high voltage rating? If so would it destroy my system.

@diysustainableliving2774 29 күн бұрын

I think the caps you have can store a small ammount of electricity at a very high voltage. Supercapacitors are rated in the farad range (F) not micro farad (uf). The caps I have are each rated at 2.7V and 500F. There are 6 of them in series to get 16.2v which can be used for a 12V system. You can buy these online quite cheap.

@daniellapain1576 29 күн бұрын

@@diysustainableliving2774 thanks for the advice and I will definitely try looking into it. Thought I would save some money with what I already own but I will keep it on the safe side and use what is proven

@alipediasolutions7334 Ай бұрын

Agr pwm cntroler se buck convrter ko connection krle tw kya fridge chalega inverter fridge....without batter

@diysustainableliving2774 Ай бұрын

Please ask the questions in english. By using google translate I think the answer to this question is... the buck converter connects in series before the pwm scc. This is ideal if you have a lithium ion battery setup as it needs a particular voltage. As for the fridge either you need to use a fridge which runs on DC power or you have to have an inverter to run an AC fridge.

@alipediasolutions7334 Ай бұрын

Hi sir your wtsapp numbr

@diysustainableliving2774 Ай бұрын

Hi... please ask your questions here. Thanks.

@seewaage Ай бұрын

Great video! I'll give that a try.

@diysustainableliving2774 Ай бұрын

Thanks.

@onekycarscanners6002 2 ай бұрын

This setup is so wrong what you really need is a DC induction Coker it will eliminate the need of an inverter. Infact during the day it will not even need batteries

@diysustainableliving2774 2 ай бұрын

True!... At the moment I am showing things as a proof of concept with existing things available on the market. I know that there are DC induction cookers out there but they are not freely available like AC cookers.

@markbelcher2754 2 ай бұрын

What size cables connect panels to battery and controller?

@diysustainableliving2774 2 ай бұрын

For that I used the AC mains wire as they can handle a good amount of amps and are cost effective. From both panels I would get a maximum of around 14A but the wire can handle around 30A.

@markbelcher2754 2 ай бұрын

@@diysustainableliving2774 Thank you for responding. Do you know the wire specs 1.25mm, 1.50mm. 2.0mm, 2.5 or maybe 12, 14, 16. ?

@diysustainableliving2774 2 ай бұрын

No... Just look up at your local hardware store for AC mains input wires.

@Ttechcraft 2 ай бұрын

What is the voltage of that your solar panel

@diysustainableliving2774 2 ай бұрын

It is a panel used for 12V system. Its Rated to deliver 18.5v at its maximum powerpoint.

@captronsilveira7087 2 ай бұрын

Interesting . Due to audio reasons I couldn't understand what comes at the end of the Panel Cables. There are two devices Both wall mounted. Attached to them is the Amp Meter. Could you speak about them again and a little louder. Thanks. 🙂

@diysustainableliving2774 2 ай бұрын

Sorry about that. Those things on the wall before the ammeter are a buck converter and a pwm charge controller. Im using the buck converter in this set up as I am connecting my supercapacitor bank directly instead of the battery. This is why I have to limit the input voltage. Im not sure about the pwm scc as it is good when you have a battery but it is also rated for 24v batteries so with the supercaps if it overcharges the voltage it may end in a catastrophic failure. Thats the main reason for the buck converter in this video. I hope that makes sense.

@mehmetyuksel9465 2 ай бұрын

buck converter out series connect scotkky dıode perfect use

@carlbarron1186 2 ай бұрын

That is fine in hot country but not in Bad Weather UK?

@diysustainableliving2774 2 ай бұрын

Very true!.... When you get clouds the panel voltage drastically goes down. Even in summer although the day is long you get a lot of clouds which impact the panel output. I think UK has much more wind power than solar power and thats why you see a lot of wind turbines in the countryside as it makes more economical sense.

@akoayprobinsyano4540 3 ай бұрын

Sir can i ask question... Those 1600w inverter can run 90w invertype refrigerator? Then driven battery 12v/150ah for 24/7?

@diysustainableliving2774 3 ай бұрын

Hi... First of all I dont have experience with inverter fridges but according to how they are supposed to work you shouldent have to have a powerful invrter as there should be no powersurge on startup. Next is the battery. It all depends on how much power you use in a 24hr period and how many hours you will need the battery to function till the sunlight comes back.

@TechnoEveryday 3 ай бұрын

Very nice demo I have 550W panel, 60A 12V MPPT charge controller, 180Ah battery and a so called 3000W square wave car inverter. Can this setup run 800W induction cooker?

@diysustainableliving2774 3 ай бұрын

Your panel and battery set up should be more than enough. The problem in with at 3000w squarewane inverter. They usually over estimate the powers on these things and Im not sure whether the square wave will even run the induction cooker. I think it would be a good idea to look for a pure sine wave inverter which has a continuous power rating of more than what your induction cooker requires.

@musicvision1701 3 ай бұрын

Please share connection diagram...

@diysustainableliving2774 3 ай бұрын

From solar panel power goes to the Buck converter and from there to the battery. If there is not a significant difference from the panel voltage to the battery you are not going to see any significant improvements. This is not going to acheive the values you wll find on an MPPT.

@musicvision1701 3 ай бұрын

Can I use 575w panel direct with 24v to 12v Buck converter?@@diysustainableliving2774

@diysustainableliving2774 3 ай бұрын

You will need a powerful one for that. It depends on the rated power of the buck converter. You cant use a 300w buck converter for a 575w panel.

@ryukhalfani2988 3 ай бұрын

Hello, i want to use this buck converter to my 60 aH spesification battery, is buck converter still compatible with that ampere?

@diysustainableliving2774 3 ай бұрын

As long as your buck converters output voltage is set to more than the battery voltage you can make it charge the battery. But please note!!!... what Im showing in this video is that for solar applications it is not going to be helpful if your solar panel voltage is not significantly more than your charging voltage. In that situation an MPPT will be more beneficial.

@kcjayasekara963 3 ай бұрын

Can i know what happens when we disconnect supercapasitor after start the refrigerator ? Will the refrigerator turn off by it self or will it run without supercapacitor?

@diysustainableliving2774 3 ай бұрын

It should run by itself with direct power coming from the solar panels. The supercapacitor delivers power only during the first few milliseconds of starting the induction load.

@kcjayasekara963 3 ай бұрын

@@diysustainableliving2774 @diysustainableliving2774 bro i wanna run DC 12v water pump.what about 200to 225w solar panel? will it produce enough power to run 12v water pump?

@diysustainableliving2774 3 ай бұрын

It all depends on the power of the water pump, how long you plan to use it and during what time of the day. With a 200w panel you can easily get 1.2kwh of power a day. It is equal to running a 200w pump for 6hrs continuously.

@kcjayasekara963 3 ай бұрын

@@diysustainableliving2774 I just need 1500 liter of water per day..but I have no idea what kind of water pump and solar should i buy.

@diysustainableliving2774 3 ай бұрын

I think the most important thing is to figure out the pump. Like how I show in this video where I am using an AC 220v fridge, you can use this setup with a standard home waterpump as well. But if you want to go with 12v then it important to decide on the pump first. That will depend on the depth and height you have to pump the water to and the pumps available in your area.

@Funfailus 3 ай бұрын

your solar panel is very small and solar charge controller is also not mppt solar controller refrigerator take start current around 220v 3 amp which is arround 750watt starting current then settle around 350 watt

@diysustainableliving2774 3 ай бұрын

Exactly... Thats where the supercapacitors come in. And of course the continuous power rating of that fridge was much less than 350w. Thats why it was able to run on that small panel.

@abdulrahmanoloje8976 3 ай бұрын

Hello can I contact you in telegram or Whatsapp

@ibrahimmuhammad4157 3 ай бұрын

Hey i find you channel exceptional.. can i contact you on WhatsApp?

@jayusmandev6524 3 ай бұрын

You teach and encouraging something dangerous..and most important not effective at all..because I am sure U can not command clouds not to block the sunshine

@diysustainableliving2774 3 ай бұрын

Please leave your comment in english. I dont understand what you are saying. Thanks.

@RealVintage1 4 ай бұрын

Este clip es más nutritivo que 500 de otros canales, muchísima información concreta, muchas gracias!

@PeterWaldraff 5 ай бұрын

Thankyou, well done! I appreciate the explanation and the side formulas.

@diysustainableliving2774 5 ай бұрын

Thanks!

@muhammadsaeed-lz3hm 5 ай бұрын

Super capacity value plz.capacitors ac or DC.voltages. And micro ferad.plz ans me

@diysustainableliving2774 5 ай бұрын

These are DC supercapacitors. They are not in the microfarad levels they are in the Farad levels. Each of these are 2.7v 500F caps. There are 6 of these attatched in a series.

@SDP17 5 ай бұрын

Pwm vs buck converter which is more efficient?

@diysustainableliving2774 5 ай бұрын

Both of them do two different things. If you have lithium batteries you may want to consider a buckconverter as it will give a more stable voltage setting. As for buck converter vs MPPT scc the MPPT wins. The MPPT solves the problem the buck converter caries as it cannot control the input voltage where as MPPT scc can control the input voltage to get the maximum power out of the panels.

@allenh.7373 5 ай бұрын

Excellent video. I've read that parallel connections should have battery and capacitor (+) connected and battery/capacitor (-) connected to each other. Then you take the capacitor (+) and connect to the inverter and the battery (-) and connect to the invertor. What is the benefit of doing it like they way I mentioned or is it better to do it like in the video?

@diysustainableliving2774 5 ай бұрын

It is important to charge the caps slowly first before connecting directly to the battery. The main issue is when you connect a fully drained capacitor bank you are going to deal with large ammount of power going instentaeously when you connect the battery. This can cause heat which can cause a lot of problems. Even destroy your capacitors.