Solar Powered Fridge - How to Run a Fridge With and Without! Batteries 

Great video, especially with the Super Capacitors. I never thought of using those as a back up. Thank you for sharing your wisdom!

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

You are living the dream, here. I really hope to go off-grid in the near future.

Very good explanation and demonstrations.

What do you think on running appliances on solar power without batteries? I personally prefer to add at least a small battery to the setup to get regular power and not worry about clouds. Let me know your suggetions in the comments section here.

Nice video. Using super caps is brilliant.

Brilliant! thank you! 🙂

Thank you very much for this very informative video!

Thank you from Brazil.

This is practical and intuitive. Great for beginners. However it is not safe. I wish competent systems had people explaining it step by step. They are all too difficult

Well explained and demonstrated. Great information. Thank you.

photovoltaic/solar thermal technician here: Love the Frankenstein setup 🤖car battery did the job but get a deep cycle marine battery instead. i prefer lead acid deep cycle batteries i know lithium phosphate but i'd rather use the price difference for other things like Super Capacitors 😉i hope you cleaned up the wiring for safety purposes. for demonstration purposes was Right On 👍

Really appreciate this vid, thanks!

Super super. Very practical idea 👍👍👍

Watch Next... DIY Home Battery backup - How to make a Solar Generator for your House: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MatDLcJ1Eio.html

You are super great With Brilliant mind as well

Thank you for taking the time to share your awesome solar knowledge .Thank you also for sharing LINKS to purchase the products that you recommend . i have a sunny back yard and I cant wait to save money on my air conditioning bill ,God bless from USA .I subbed, liked and shared to my playlist ,Great video much respect .

Thanks you👍👍👍👍👍

Fantastic video .I'm subscribing

You're knowledgeable bro.

Good information thanks.

Great !!!

Thank you for freely giving out good solid information about your solar power system. I would like to see if and how you could run the capacitors along with the battery to obtain better efficiency.

That's nice.

Nice.

Nice !

مبدع

Informative

Nice one 👍 please what is the value off the diode and the resistors used to protect the supper capacitor?

Good video

wow i take my hat off to you for using capacitors risky but well done

Thank you for showing the use of super capacitors. A new concept for me to learn about as I live off grid as well.

U re de best

Interesting video! Do you think it is possible do run a 12V compressor coolerbox in this way?. I was thinking about a foldable 200w solarpanel a buck-converter and a capacitorbank. I may be wrong but I think the compressor draws 45W when it is up and running...

You're good

Thank you maan... I should see your video before I blowout my invertor. I lost confidence on these made in......invertors. The only invertor I can trust is made by me. Hope I get time to make one....hhhh 🙏

Tnx for video. Why did you connect capacitors in series and not parallel and are those diodes in between capacitors?

This set up only works when it is daylight, with or without the battery. Obviously, without a battery, the panels do not generate power at night. You will need several batteries to support the fridge all night. Then when the sun comes up again, you will need to recharge the batteries while still running the fridge. If you are not able to recharge the batteries completely during the day, you will not be able to run the fridge the next night. If you run a lead-acid battery below 50%, then you will harm the battery. I suggest that you build a relay to switch the fridge back to grid power in case the battery runs down, use the output side of your charge controller to control and power the relay. Program the charge controller to shut the relay off when the battery gets below 12V and back on above 12.8V. (The Eco-Worthy charge controllers are more programmable.) This also takes care of cloudy days. But doing this also means that you will only run the fridge on solar for a part of the day, not all day. Depending on how many batteries you have, you can adjust the times the inverter is on. Leaving the inverter on all the time will also deplete your battery. I used an Alexa compatible smart switch (double relay) to turn on/off the inverter at certain times of day. Open the inverter and run 2 wires parallelling the on/off switch and run the 2 wires to the Alexa switch. The other Alexa relay is in series with the grid relay. The Alexa App allows you to set up a routine to control each relay separately. I set my relays to come on 1 minute apart at noon and turn off at 4PM. I only have 2 batteries in parallel at this time. I could run the appliances longer if I bought more batteries. I am running an upright freezer and a side-by-side fridge this way on the same 2 batteries, 600W of panels (12V), and a 2000W FSW Inverter. Again, this is only good for 4 hours per day, or 60 running days per year, if full sun. It would take about 5 years to recoup my expenses.

Go to the point Miss

In theory this idea should work using 7 150 watt panels to run a 5000btu window ac(550 watts normal operation) in order to rely primarily on the sun to run the unit on bright summer Texas days and only battery for startup and temporary clouds or auto switch to grid power for rainy days and night time...of course larger inverter bigger batt bank charge controller and buck converter is needed but over time? Will monthly savings pay for itself and how long to break even?

If you have a portable power station that can output the sustained power for a fridge but not the induction spike, is there any practical way that a bank of supercapacitors can be wired into the AC out to enable it to start the fridge? e.g. bridge rectifier -> supercapacitors + bulb load -> another invertor ?

I could see you have took some time to charged up the capacitors. - I've wondered how long does it take to charged up those 6 capacitors which was buffered with two pieces of 12v 20w bulbs? - And what is the specifications rating of your each Supercapacitors exactly?

👍

Could you make a similar video running a washmachine without battery? Please. Greetings from Arequipa Peru ☺️🤗

Hi is your solar panel volt is 24v or 12v ? and how many amp from solar panel to charge battery and work in the same time fan and others equipment.

Can you provide the link to buy the fridge? 72 watts that's amazing.

Difficulty I have is that the inverter goes into fault low voltage and won't restart when the sun comes out after a cloud. I use a battery but with a sun sensor which only turns the inverter on when sun is shining strongly. If the sun goes the inverter resets. Fridge keeps cool 24 hours with minimal use of the battery cycle life.

As an alternative to supercap startup strategy what about incorporating An auto transfer switch ,setting solar as the primary power source and battery as the secondary. Thus after initial battery startup and when the sun goes behind a cloud, the ats switches to batt power until such time sufficient solar power from panels+buck converter is restored.Of course you would have a low coltage batt cutoff at which point system operation wou.d cease until panels are able to recharge battery enough for the jump start again. You would set the cutoff point such that the Batts only get a shallow depth of discharge ie 10% thereby increasing their lifespan drastically. IDK how you could still employ the supercaps in some capacity(lol) still but you can figure that out. .?which takes longer to recharge ....the Batts or the supercaps? Of course this whole setup is designed for daytime operation.

How about reactive current from the fridge motor and power surges? Do you need some other electrical component?

Nice expanation How much can I buy the buck converter ( step down converter) thank you

If I’m running a 12/24v DC 90watt refrigerator directly from solar panel should I still use a buck converter? Or since it’s 12 &24v dc input I don’t need it?

I could see from the start that this video would potentially end up being pretty hilarious, and it was quite funny, until you correctly introduced the capacitors. Well explained too! Suprising how few people understand the concept of this method when needing to 'start' an inductive appliance, ie. refridgerator/motor, when only having use of lower power invertors/panels. But just to note: the charging circuit here implements Pulse Wave Modulation method, so is only suitable for lead-acid types of battery, as opposed to MPPT types which are for use with the latest technologies, ie. LFPs (LiFePO4). The buck convertor? Well, straight away this creates loss in the system from the panel, via heat loss, which should be avoided. Correct voltage panels suited to the charging circuit would be more appropriate. Also, add approriately-rated in-line fuses [for the intended application] and diodes to all of the lines (including both postiive/live and negative/neutral lines), for safety and to help prevent malfunction and destruction of the electronics.

what is your setup? What is the buck circuit in front of the charger doing? if I use 18 volt panel and 12 volt batery what should i do?

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. 🙂

In the system without battery, is it more efficient to connect the buck converter directly to the inverter? PWM loses its main function, charging and keeping the battery charged. Thanks again.

My system not runing a fan for an hour connection setup good what's u think is round

Hi sir thanks for the great video, i had a 2000 modified inventer and and a car battery i,m planning to buy a 250 solar panel do you think i will be able to power the fridge? thanks in advance

What if you put a larger load on output than the solar panel is producing? Example if you try to run iron? Will it work slowly or inverter will give alarm?

So will that dc to dc converter handle the variable dc voltage from the panel 24hrs a day? The solar panel feeds a wide range of voltage levels throughout the day. Does it get hot?

Is there a link for those capacitors I'd like to purchase!

Nice experiment. Ive some questions for you... If you kind enough to answer... 1. Pls provide the link of your inverter... I'd like to purchase. 2. How did you made the capacitor bank or you purchased it ? 3. You are using a simple chinese pwm charge controller... How it's working without battery ? Did you put the solar output to its battery input ? Can't you put directly to the inverter ? 4. A ready to go 12v supercapacitor bank way more expensive than a lead acid battery... Doesn't it defeat the purpose ?

Hi, what is the small part on the left that you conect before the charger. And what is the purpose for that part doing?.

Can we connect the super capacitor permenently to the solar system... Thanks...

i have solar panel 20volts and maybe 50watts .if i use booster it can run 300watts heater on my inverter 12volts 1000watts?

great video. atleast electricians / electrical engineers can do the capacitor set up. how many cycles of the fridge going on and off will that capacitor handle before it is drained do you think. also what UF is the capacitors. and it’s wired in pararralell right ?

Sir can i asked. Your solar inverter 12 volts and 2000 watts? Thank you

Directly solar panel ?using dc to dc buck converter?wow......1000 like

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

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

Please tell me.... How long time run fridge without battery...???? By the super capacitor bank system...

Hi friend. Wouldn't it be better to buy a balancing card for your super power packers and leave it in parallel always with the solar charger and battery and inverter? so as not to have to always be aware of charging the xcondenser with the bulb? Could you make a demonstration? Thank you

What kind of wires are needed for this setup?

What kind and size of super capacitor are you using sir? May i know it?

Can you run the fredge for the all day like this... just to know...

Hi, i think we should use both battery and super capacitor, so that we can put more loads.Vikash ,from Mauritius.

hello my friend can you tell me if it stays connected the solar panel back to the solar controller without putting batteries or will the consumption burn the solar controller??? or it won't be a problem as long as we leave it without batteries let me know if you know please

Can we plug in direct from solar into PWM and then from PWM to DC appliances?

So interesting ..congrats. Can u send the diagram?

The super cap set up wouldnt work the next day when the sun comes up. the caps would be discharged and the low voltage on the panels would not give an adequate kick to start the inductive load.

Sir gud pm I have a question,sir i have a off grid set up,300 solar panels,50a controller,1500 watts inverter,100ah battery.what is the luck of my off grid set up run of a refrigerator?

super capacitor price and setting of soldering ???

is The Battery should be Empty on first use?

Can it be use without the stepdown transformer thank you for the answer. And what stepdown transformer you used?

Hey sir what is the name of this device that the wires from the solar panel is connected to then goes to the charge controller

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

How can we run the fridge in the night. Because fridge has to be operative in the night also.

What size cables connect panels to battery and controller?

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

You are from sri lanka

how long can it run tho with supercapacitors?

Dear Friend How long does the refrigerator charge last overnight with a car battery?

What are the ratings of the capacitors

You could use a bigger solar panel, Or a 12V fridge :)

How many ampere your charge controller

What voltage did you set the step down converter to?

Hello sir, may I know the number of that power capacitors? I have here 36v 250w solar panel? Any suggestion for good set up?

Fried Ice Cream Machine that has power 740w.. Can I used this method with a 2000 watt pure sine wave inverter?

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?

How many watts the panel is??

I have 300w solar panel and 200aps battery but the fridge keeps on cutting when running and it only cools the stuff failing to freeze the stuff. It's a deep freezer help please