44 kW micro-grid Victron and Fronius Setup with 52kWh storage

[@anthonygracie3909]

that is the cleanest install i have seen to date, i am about t install a sol ark 15kw system for a customer with battery and grid tie it is a challenge but your set up is wonderfully tidy

[@thecstechvideos]

Heheh

[@michaelchownyk5255]

You did an excellent job on that solar inverter system. I live off grid with an electric car and I can appreciate how powerful and clean that install is. All you need now is about 300 kWh of lithium battery and you’ll be laughing

[@thecstechvideos]

I plan 150-200 kWh of storage, but in an outdoor cabinet whit cooling and heating inside. Stay whit us :)

[@prostmahlzeit]

​@@thecstechvideosthat's just about 20k euros for the battery.

[@evil17]

@@thecstechvideossounds great, excellent setup.

[@evil17]

Excellent job mate, I want one. Be good to see what you do for batteries.

[@thecstechvideos]

Will be an 82 kWh DYI WV ID3 modules (12 pcs x 6.8kWh)

[@pau1phi11ips]

OMG dude. That system is fucking incredible! Holy shit!

[@terry2833]

Hey mate what a great setup you have it looks fantastic im very impressed with your cableing techniques. Cheers from Down under.

[@davidissko9796]

Wow, how technology changes so very quickly, especially in the renewables industry. I am about to install a 40kWh, 3 phase 0ms whole home backup battery from Sigenergy to compliment my 25.6kW rooftop PV array. 5 x 8kWh stackable battery modules, a 15kW 3 phase inverter on top. Gateway box to control backup. Very easy setup very easy install.

[@NickWindham]

Good video. You’re both great. Martyna, great info shared that it’s not just overall kW clipping, we also have to be aware of the inverter clipping due to the max amperage it can input. Lastly, I wish the US would get it in gear regarding making solar affordability at least on par with most other countries. Professional solar installs in Australia, for example, are roughly $1/watt and their approval processes are streamlined. It seems to be roughly $2.5/watt in Texas. If Oncor electric delivery brings back their $9K credit again, then it makes sense to install an expandable 15kW (max for their program) hybrid system with a cheap but expandable 3kWh (min for their program) battery. Otherwise, it seems like buying a kit or components from Santan solar on Black Friday is the way to go for those inclined to major DIY projects and have friends/family that are licensed electricians. Even then, it’s hard to match the cost of a professionally installed system in Australia, which is pretty wacky.

[@trinilgan]

very nice & clean installation

[@JamesHanley-kg6ki]

Fantastic system! I really enjoy your videos, thank you!

[@thecstechvideos]

Hehe, wait few weeks....new studios :)

[@you2bevsgoogle]

Nice Setup looks great like the cable Management very good and clean,greetings from Germany.

[@thecstechvideos]

Hehe, it took ‘only’ a few days to wire it up :)

[@gabius_times]

What a really nice setup !! Pretty and so powerful. I made a triphasé system but only with 3x 5kva Multiplus 2 and huawei inverter. Made the batteries myself with diy kit was cheaper and really good with seplos bms about 1600euros for 15kwh (we have 75kwh)

[@thecstechvideos]

wow, 75 kWh...is a pretty nice battery :)

[@anthonygracie3909]

how are you finding the seplos bms?

[@IsmailGlobal-s9j]

Great Setup, the explain very helpful thank you for sharing

[@thecstechvideos]

Thanks for watching!

[@christianvanderstap6257]

This looks like a well thought out system. Do you have a schematic of this system so I can learn how the components interact?

[@garbi8526]

I recommend you invest in lifepo4 prismatic cells. The diy boxes for the lf280k are pretty good, with jk inverter bms (1/3 of the cost of the victron batteries) . Have a look on Andy from Off-Grid garage.

[@helmo5663]

I would also second this. For your large system you should at least use 3 boxes DIY with the new EVE MB31 cells and JK BMS. I am at the moment in the process building my third box with 16,4kWh for less than 2000 Euro. The BMS will do a very good job.

[@andreasw5925]

I can confirm this. I run 5 Jk inverter bms now, the 200A version with 2A balancing power. They have still some small issues (see the offgrid garage video about “has DC power”) but the overall price is great with eve 280k v3 and eel v4 case one box was less than 1500€ for 14.4 kWh each. Victron CAN is supported.

[@matt635d8]

Nice work but those changeover switches for loads are strange . All can be done e by ESS and schedule charging

[@evil17]

Yep JK BMS’s with prismatic lifepo4 280A-310A cells work perfect, I have a few setups & all work well. Andy’s Off Grid Garage Australia is a great channel for info on anything solar & batteries.

[@razvanduta3563]

Bravo, arata foarte bine. Exact ce ma gadesc de cateva zile sa fac - un system trifazat, mai ales ca Invertoarele de la Victron sunt asa ieftine acum.

[@mychalkeeney260]

Victron makes excellent equipment but wish they would embrace conduit knockouts so the wiring isn’t exposed. But, beautiful job on your wire management on this build. As clean as I’ve seen.

[@thecstechvideos]

Yeah, their products are modular and need special wiring sometimes, but...a new line is coming, the one that can easy fit in rack...but I prefer the ones that can be hooked on wall, look more personal setup :)

[@floriansippel]

very nice system! 👍🏻 do you also have photos from the inside of the prism, I am also thinking about making the distribution for the Victron system like this

[@KarlBertamo]

Can you say something about the power consumption when idle (zero load)? I'm planning a similar setup, so I would be very interested in the efficiency of the system at light load. I.e. what does the system draw with 0 W load and 1 kW at the output? How long can the 3 MP2 10k deliver the maximum 24 kW before they are turned down? Do you have noise problems?

[@themanwhobeateinstein]

Thank you for asking the important questions, how much waste and noise. I also want to know please, I think this is the most important consideration for an efficient system. Thank you

[@JdZ-2023]

Really great setup. Do you have an electric drawing of your installation and power cabinet that we can view? I would like to see that.

[@thecstechvideos]

I just finish the setup, the paper aren’t ready yet 😀, but I will make some videos regarding what’s inside

[@damianzakutansky6956]

Your instalation looks well-thought-out, really inspirative! Looking forward to any further details how it works and is made behind the covers :)

[@StanislavLakhtin]

Very nice. All looks very flexible and reasonable.

[@9111logic]

Perfect job and thanks for sharing🙏 I like the tidiness and versatility and I only one question about the 250/100 MPPTs cables, you've used 50mm and said that it is compulsory whereas I was under the impression that 35mm was the recommended size. I wanted to use 50mm on both my 250-100 since I always oversize all of my cables but I didn't think the 50mm lug would fit the MPPT connector, so I used 35mm instead. I only have two 5000 Victron inverter as I do not need three-phase although I've considered that.

[@petersamios5409]

Very nice setup. The only change I would make would be to separate the data cables from the power cables.

[@Kosmonooit]

Better oversize than undersize! Those 250/100 solar chargers def. need 50mm sq out. Otherwise super clean, dream set up. Do you rally need to go Victron for the batteries? I've had great results with Pylontech

[@thecstechvideos]

I have DYI VW ID modules and soon I'll upgrade to 82kWh :)

[@dutotfreddy3293]

Bonjour aurais tu un schéma uniflilaire de ton install

[@fkwvdpol]

Congratulation with your very neat looking install. It's one of the cleanest I've seen. Love the idea of using the Schneider cabinet for the AC and DC distribution. One question: why are you having a Lynx distributor on the right side to the Lynx, but NOT using this to connect your batteries? (The batteries are now connected to the bus link, which could have also been connected to the Shunt)

[@thecstechvideos]

Thanks! Regarding Lynx on the right side, I plan ro upgrade the batteries and use multiple conductors for connect to system and I want to put fuses there.

[@oldnavyjr82]

Cool system. What was your annual consumption before this installation? What is your self sufficiency % now ?

[@thecstechvideos]

Befor update, last year I had a consumtion around 23 MWh :) three electric cars, heating for 350 SQM and all electric appliances…servers. Self sufficient from solar and batteries was around 59%. I hope this year to increase whit this setup to 75-80% from green energy. You can check my setup live on cstech.ro/productie-sistem-fotovoltaic-cstech-live

[@hm93972]

Great set up. Which Fronius are you using?

[@thecstechvideos]

Thanks! Is Fronius SYmo 20 kW

[@skoto.power.systems]

Magnificent job❤❤❤, that is awesome. I love it.

[@sp3c14l1st]

great setup, clean !

[@andreasw5925]

Nice setup. A Part of the Solar and battery DIY Community is about to replace the mega fuses since there was a fire in the US where, the insurance claims, the arc of a blown fuse caused the fire. Do you think it’s worth to take a look at this topic or are you ok with mega fuses and trust them?

[@thecstechvideos]

I don't believe the fire start because of mega-fuse. Is around 40-60V there and the arc can't be so big to melt and set fire to the fuse. Probably there was an imperfect contact or a screw loose or not was tight at the correct torque. Or maybe an undersized conductor...who knows, we need to see to believe :)

[@andreasw5925]

@@thecstechvideos I also don’t believe it. That might be just a reason so the insurance has something. But if you have a huge system the current can get quite high in case of a short and the official specs of the fuse could be not sufficient.

[@TushhsuT]

@@thecstechvideos The problem is not the voltage, but the current. The internal resistance of cells is really small and it allows them to keep huge short circuit current -hundreds of amperes. The voltage is small and not enough to start an arc - right. But you think about it in open state. The real situation is different - the circuit works, then suddenly a short circuit happens. The fuse melts. And during this melting the gap is not instantly appears - it starts small and then increases (all in milliseconds timescale). And extremely hot gas from this melted fuse decreases the voltage needed to start an arc, and it starts! And once started, having hundreds of amperes in flow as plasma, it can cover gaps of centimeters(inches also). All welding works like this - bring electrode in or almost in contact, start arc, increase the gap. That is really serious thing and "I don't believe in it" is not a safe enough safety measure :)

[@Deiphobuzz]

Great setup! very clean. Question, did you think about the maximum disconnect current the mega fuses can handle? Lifepo4 can deliver tens of thousands of amps in a short. Ive read that Class T is better for this?

[@RandomPenner]

Hi Mate. What fuse do you use in the shunt? Thanks

[@thecstechvideos]

ANL 500A

[@nielstammeling]

Hi CS Tech, very nice installation! You did an excellent job. Also like the big Prisma Schneider electric distribution box. Question: Between the Multiplus and lynx distributor, it seems you didnt install a DC switch. Is it not necessery? With bigger systems, we are using ETI knife blade fuse and holder, but its expensive. What would you recommend? The normal red DC battery switch is only usable for 3 en 5kVA multiplus.

[@thecstechvideos]

Is necessary, but since i have 3 phase system I prefer to shut down all once and for that I have a Gigavac contractor already on general positive from battery that can disconnect the entire DC from whole system. More videos will come about this 😃

[@5885ronny]

Sieht gut aus habe auch alles von Victron 🤗👍🤗👍

[@thecstechvideos]

Nice...

[@Steil-o]

damn, this system bangs chicks, not gonna lie....your house must be very powerhungry if it needs this bad ass system. really liked the explanation, what a powerfull system

[@thecstechvideos]

Haha... never thought of him that way :))

[@ricardophelps6323]

Very nice install you should look at a battery shelf with 3 or 4 15KW batteries. LFP cells 280AH are now only €80 each so you could build 60KW (64 cells) with x4 BMS for €6K and cycle between 20 - 80% DOD for 25 yr battery. CATL cells are the best >8,000 cycles

[@thecstechvideos]

I will have the new Victron Battery direcly on 48V and I'll install around 82 kWh. I wait them to release :)

[@ricardophelps6323]

@@thecstechvideos Does such a battery exist by Victron? I see no information

[@sc0or]

@@thecstechvideosThis is awesome that you have not lost “h” in this case. Because “kW” and “kWh” are like a weight and a temperature.

[@Leksi80]

Great looking clean setup. Just one thing grabbed my attention. Is the 450/200 MPPT grounded since I don't see a wire for that? Seems the 2 smaller ones are grounded with the same wire.

[@thecstechvideos]

Is grounded :)

[@MrDenisJoshua]

I don't understand a little think... I so a lot of PV system that use e separate MPTT and it don't use the internal MPPT of the inverters... Why this please ? I'll have a 90 pieces PV panels on my new home roof... and I must decide how to divide them... Faina de tot instalatia, mai ales managementul cablurilor :-)

[@themanwhobeateinstein]

Very nice

[@gnafron9907]

Hello, what is the schneider reference for the prismaset G mounting plate you have chosen to integrate GX screen? (is it the 70inch screen?).... nice idea!

[@thecstechvideos]

Please note the code: LVS03204

[@gnafron9907]

@@thecstechvideos thank you for reply, i have check, but LVS03204 do not fit (its more a mounting plate for 18mm modules. Isn't it more LVS03326 which fit with 70' gx ?

[@thecstechvideos]

@@gnafron9907 Sorry, I copy something and paste something else. Please note LVS03806. We carefully cut and put Ekrano there.

[@gnafron9907]

@@thecstechvideos ok thank you 👍

[@kentneil7100]

Very smart system sir 👍 👏

[@zuzantator9918]

I like how it was done.

[@thecstechvideos]

Hehe, thanks

[@maanabdulkarim7474]

Great set up and configuration so can you show us how many solar panels you use and the area that needs... I think it's so interesting 🤔

[@thecstechvideos]

Ok, I’ll do an material 🤔

[@Ernest_son]

Really nice setup. When I grow up I'll have one of those. Thanks for sharing.

[@TeeDolder]

Wow Nice 👌

[@CosimoBisello]

Hi, I'm about to build a similar but single-phase system with Victron and Fronius. First, I also activated the Fronius microgrid, but I would like it not to absorb even 1 W from the network, as you did, in particular the coupling is at the input to the victron or in ac out of the victron?

[@thecstechvideos]

In this setup, Fronius is on Victron OUTPUT and on victron input, on grid connection point I install a Victron meter so I can limit everything.

[@CosimoBisello]

@@thecstechvideos so is fronius in parallel to the home load? If they were to cut off the power, what protection would there be? To function, my Fronius is automatically connected to the network via Italian CEI 021 regulation. What do you recommend, can I still connect it to AC OUT Victron?

[@sidperry7748]

That is a piece of art 👌

[@thecstechvideos]

Hehe 😜

[@bengoevaerts]

Very nice setup! Always looking forward to watch your videos. Question: What is the max. off-grid power at night, without solar?

[@thecstechvideos]

Sorry, but not understand the question. What is the max power that can be used in the night in off-grid mode? If that’s the question, is around 24 kW max!

[@bengoevaerts]

@@thecstechvideos I guess how much can you draw from the battery if there's no sun & no grid? If it's 24kW at 48V that would be 500A from the battery? Can the batteries handle that? Thanks!

[@TonvanderReijken]

Super system, well done, Im a bit jealous :-). Beautifully connected. How does the Fronius throttle down (delivering less power when the grid has a failure, no power from the grid) and your batteries are full (SOC 100%) ?? are you using zero feed in from Fronius ? to prevent overloading the batteries ?

[@thecstechvideos]

Fronius has country code set to MG50 (micro-grid) and Victron know that a Fronius is present and send limitation via frequency. Basically modulate frequency and this reduce or increase Fronius production.

[@MaykThewessen]

How much energy storage 🔋? 52kWh in a Volkswagen battery pack? That is still fairly small

[@thecstechvideos]

Yeah...I will upgrade to 100kWh Victron storage.

[@firefly2472]

Looking damn nice

[@thecstechvideos]

Hehe, thanks !

[@firefly2472]

@@thecstechvideos I did build myself an 20kw storage 3 phase 3000va system with 12 435 panels to victron on the house and 16 panels on the barn in microgrid to start with and learn this stuff and it has been fun doing so. Build the battery myself to.

[@thecstechvideos]

So..I’m not te only one crazy 🤪

[@firefly2472]

​@@thecstechvideosNo, no you aren't 😂. Winter weather has been dark tho, not much production 😢.

[@dr-arman]

Tou have wrong mega fuses for 48V system. Your fuses are for max 32V

[@thecstechvideos]

Yes, that was available then, now all is normal. Nice observation :)

[@andrewmcleod9312]

Lost for words.. Except, I want one LoL !!

[@frankbierschneider8785]

Beautiful!

[@thecstechvideos]

Heheh, thanks 😊

[@patricklyons7683]

Jealous of hx vjng your kit setup, got a good similar system but no where near ready fof install.

[@derfreiemensch]

Great, but next time turn the fuse over, then you can immediately see whether it is still intact or defective

[@thecstechvideos]

They are black on both sides :). The reason that I use Lynx is that an LED will become red if a fuse is blown.

[@peterk.4266]

Clean.

[@edc1569]

At these power levels HV makes sense.

[@cdrbmw]

What is the cost of a system like this? roughly.

[@thecstechvideos]

My wife will see :) but is around 50K

[@evil17]

@@thecstechvideosSpectacular setup, it would be near double that in Australia. I am jealous. I hope your still married, but I think she has got a great deal even if your not.

[@torpemonguz]

Great and very expensive setup. 3 paralleled 12kwh Deye costs rough half or less. Why not use all-in-one system?

[@thecstechvideos]

Ahh...I prefer quality. Cheap is expensive in the end.

[@infinitty.96]

❤❤

[@PavolFilek]

NOw is this system cheap. But a few yeas before this 10 000 VA units was expensive. Also battery now is cheap. 60 kWh battery is about 5400 €.

[@thecstechvideos]

What battery you find with 5400 Euro for 60 kWh?

[@PavolFilek]

@@thecstechvideos EVE, CALB, CATL, BYD, Gotion, Hithium , DOcanTech. etc. You can make 35 AMPS actve BMS for few bucks to 8 paraller packs. Also this fuses you use are not good for DC and high DC currents.. YOu have to use fuses, that in case of internal or external shot circiut, do not ignite gases from your batter, e. g. H2, C2H2, C2H6, CH4 and you do not breath HF, CO, CO2. Bye.

[@0xdeadc0de]

Top 👍🏻

[@AlmasiHaji]

Uuuuuhhh you are doing well brother but please can I run my motors of 20HP and one of 15HP in day and night can you give me a setup and you can supply for me I'm African Tanzania country

[@vpchelko]

the main drawback is the price the price of 1 Victron inverter = the price of 5 Chinese inverters with the same characteristics - which are also combined into a single network

[@thecstechvideos]

Yeah, we love China :)

[@vpchelko]

@@thecstechvideos in any case, even the Victron is assembled from Chinese parts

[@znouza]

what is your battery solution? We're using victron + bmz

[@thecstechvideos]

Right now I’m using VW ID3 modules, around 52 kWh Li-ion, but I’ll chose Victron LFP. Thanks

[@borcany7]

​@@thecstechvideosdo you have 8s version? How you connect it? 16s? Because in datasheet is battery volt is from 3.3 to 4.2v. But 4.2x16 is 67.2v and this is too much for victron mppt and multiplus. What bms are you using?

[@thecstechvideos]

@@borcany7 in my setup I have 12S, but a friend has same modules but 8S and is also works on Victron, but will charge to max 64V. That is the max value for Victron. He use 250/100 MPPT to charge. BMS I have SIMP, he is using GRN BMS. I will make a video about.

[@armandvermeulen2947]

Nice, just a small storage system.

[@thecstechvideos]

Will be upgrade to 82 kWh soon 😐

[@cdrbmw]

Sweeeeet :-)

[@ELECTRICLIFE4U]

👍👍👍👍❤❤

[@invertor4245]

Nice english with romanian accent😊

[@thecstechvideos]

We don't have other right now :))

[@invertor4245]

@@thecstechvideos așa cum e ,este foarte bun😀

[@crazzzyization]

I don't care

[@thecstechvideos]

:)