Hi, I am looking for advice. I have done many installations for BESS under 50 kwh system. My client is satisfied with the performance and want to apply Victron BESS on the factory. The peak load is 100 kw which I think is manageable with Quatro 15K x 9. My concern is that the client is asking for 400 kwh battery storage. This will be my first time to use large capacity battery. Anyone has any experience with this kind of project? Any advice is welcome and I really appreciate it.

Hi, large scale system queries should really be discussed with your distributor or supplier. The forum isn’t really meant for this, beyond design and architectural help for smaller, DIY systems.

Thank you Nick. I am in talk with the supplier however they also don’t have experience for such large battery capacity. Just looking for some advice in this forum which might add insight for this project.

Sure thing. There are some people here who are involved with larger systems. Some can be seen on the “show us section” and others which are showcased on the main victron and victron professional site. Certainly big systems are not uncommon.

Thank you Nick. I will browse the show us section

@G_hybrid The principles in wiring unlimited apply. Wiring for good current sharing (it matters more for charging and balancing than discharge current reasons) is definitely key. Keeping short DC runs is definitely interesting on bigger banks and a nice mix of charge and dicharge sources over the bank bus bar. What batteries are you proposing?

look at this system … [image] 180kVA beast from Dracula land vampire Show us your system EDIT: Final pictures in latest comments A system I want to show that we are currently working on in Cluj, Romania. We are in fact building it at our home base and then it will be lifted ready to the customers site 100km away. What you see in the pictures so far: 12 x 15KVA Quatrro units 2 x 5000A aluminium busbars (Schrack Technik) 12 x ETI Fuse switch disconnectors This will be filled soon with 500KW LIFEPO4 storage and the AC/DC panel. Will post pictures as it develops. The use case if a…

Yes, this system is working away fine for us. Had a few things to iron out in the beginning but all going well for now. If you want we can discus just ping me daniels(@)panouricluj.ro. Happy to share from our experience.

thank you for the response. I am planning to Lithium Battery 48V from BSL battery,. It is in Victron compatibility list

Hi Dansz, thank you for the response. I have seen your installation and it is really inspiring. I hope I can learn from your experience.

[image] solarpanel: Anyone has any experience with this kind of project? Any advice is welcome and I really appreciate it. Hi there. We have experience with systems like this. Check out this video here for a discussion of what @lxonline referred to for balancing loads, sources, and storage across buss bars: https://youtu.be/xCZEvgtnihk?si=wxQ08nAEzUsbwUi7 I asked one of my guys to make that video to share with some of our installers in the event they are working with large systems. The video shows just three Quattro 10kVA units but the end system had 8 Quattro 10k’s, 13x MPPT 450/200, and 60x 5kWh batteries. Not quite as large as yours but the video is instructional and will hopefully help you with a similar analysis for your system. Good luck!

Advice on Victron quatro to be used for large battery system (400 kwh)?

Q&A and troubleshooting

Netrange (Steffen) 4 June 2025 17:35 7

look at this system …

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Advice on Victron quatro to be used for large battery system (400 kwh)?

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