question

michaelvh avatar image
michaelvh asked

Victron EV charging station + ESS configuration possibilities

Hi guys, this may be a question for the Victron team. I am looking to purchase the new EV charging station, but i have some questions on how it can be configured together with a grid bound ESS system, i could not determine the answer myself on the available documentation or video.

This i was able to find: In automatic mode it will only use excess energy when the home battery is fully charged, and in off grid systems it is possible to set a minimum SOC for the home battery.


My questions:

1. Is it possible to set a minimum SOC for the home battery in a grid bound ESS system before the EV charger kicks in? For example, when the ESS minimum SOC is lets say 20% before getting power from the grid, can the minimum SOC for the EV charger be set at 50% at the same time? In this case the EV charger would use the home battery from 100% to 50%, and the remaining 50% to 20% would be reserved for domestic use at night. Would the EV charger stop using the home battery at set SOC, and only solar power afterwards?


2. A follow up question. Would it then be possible to set the maximum power drain from the home battery? Lets say while charging the EV, it will use all available solar, and only XXX watts from the home battery? This so some reserve power is available for domestic use without having to use the grid.


Thanks!

Michael

ESSSOC
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9 Answers
Lucian Popescu (Victron Energy Staff) avatar image
Lucian Popescu (Victron Energy Staff) answered ·

Hi, At this moment, the charging station starts charging only when there is energy export into the grid. In a normal ESS, that's happening only when the battery is full. We are planning to add a new algorithm for off-gird that will work based on battery levels, and maybe we can also apply it in ESS.

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Ok thank you, sounds good. Keep us up to date on that, would be very interested in those specific control settings. IMO would make it a superior product compared to other smart EV charging stations.

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Sure! Order the product and I can add you to the beta-testers group.
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Rene Mullie avatar image Rene Mullie Lucian Popescu (Victron Energy Staff) ♦♦ ·
@Lucian Popescu (Victron Energy Staff) : I just received the EV charger and installed it, will not see car/ start charging.

Can you add me to BETA group so I can seek support over there? Thx!

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Hi Rene, can you please update it to the latest firmware?

Also, please update the GX to the latest BETA.

Please keep me posted

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We are planning to add a new algorithm for off-gird

Hello Lucian, that's interesting indeed. But will this algorithm be able to differentiate between Li and Pb systems? Lithium should be easy, but within lead-acid systems absorption times have to be considered additionally to prevent constant PSOC states. I guess this is a bit more complex than just using the SOC state, isn't it? Just wanted to mention that.

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Hi, yes, battery charging should have priority, especially for lead-acid
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pampalasek-cz avatar image
pampalasek-cz answered ·

Hello Lucian - Im from czech Republic - i have 1piece of EV charger with firmware V3.3/1.19-beta-14 connected to my system with 3pcs Quattros 10000 and 2 Fronius Symo 20.0-3 , i see EV charger at my vrm account and at remote console , but not possible to charge EV cars - Car NOT connected ( try some cars - same problem ) , Cerbo version 2.85 , can you help me with please? My email is : info@svabi.cz , thank you so much , Pampalasek_CZ

2 comments
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Hi, please add me as admin on your VRM system, so I can have a look - lpopescu@victronenergy.com

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Lucian Popescu (Victron Energy Staff) avatar image Lucian Popescu (Victron Energy Staff) ♦♦ Lucian Popescu (Victron Energy Staff) ♦♦ ·
@Pampalasek_CZ Can please check again? It should be ok now
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pampalasek-cz avatar image
pampalasek-cz answered ·

Thank you so much, at now i search for some EVs ... dont have at home.. i write answer to your email when i check it

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Lucian Popescu (Victron Energy Staff) avatar image
Lucian Popescu (Victron Energy Staff) answered ·

Please keep me posted!

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pampalasek-cz avatar image
pampalasek-cz answered ·

Hi Lucian , at now i test with Enyaq - car is detected - next step done :D , but not start charge because Low SOC Limit , at my FV have full Batteries at 100% , but charger 279608210-557895132418790-2580457485213771137-n.jpg


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Hi, is it a stand-alone device? or part of a victron system? If it's part of a victron system, please follow this steps:

For the ev charger, go to settings, general, modbus tcp server, and in there, fill the ip address of the GX device
Then on the GX device, go to setting, services, and enable modbus.
Please keep me posted!

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pampalasek-cz avatar image
pampalasek-cz answered ·

yes , its part of huge Victron system, in Charger web browser i have ip Cerbo gx by discover function and saved , at cerbo i have this fail 279466496_589164349469272_3336459484180363284_n.jpg


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ok, can you add me as admin on that vrm system? lpopescu@victronenergy.com
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pampalasek-cz avatar image
pampalasek-cz answered ·

you have from yesterday - name Pampalasek

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pampalasek-cz avatar image
pampalasek-cz answered ·

Awesome NEWS - Lucian GOT IT! First EV Victron Charger work perfectly at Czech Republic - it is first test piece - for now i wait for Enyaq when come with lowest SOC because when i tested have 98 SOC - i took some photos and posted here , very thanks him


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Rene Mullie avatar image
Rene Mullie answered ·

First review: after some issues with getting updated to the right EV firmware version in combination with the Cerbo FW version I got it up&running perfectly! Thanks for your help Lucian! Next steps will be fiddling with the rest of the system in conjunction with the auto-charge option.


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