It’s not criticism… It’s reality.
Even at 98-99% efficiency, at such powers, there is huge amount of heat.
BTW… the ones closer with Victron…
Which is the destination of this product? Which target?
What was in the mind of the developers when they’ve thought of this product?
Small business? It’s kinda small… And I believe that the parallel idea is uncertain just like it’s for Multi RS.
Residential? Tri-phase HV battery is kinda overkill for some/many…
For sure it’s not RV…
I absolutely agree with you. This is a product with an undefined market position.
For the commercial sector, 15 kW is effectively negligible, even if parallel operation becomes available in the future. Commercial installations typically start at 30–50 kW, which is the minimum entry point for this segment. Even if Victron were to release a 50 kW model, increase the PV input voltage to 1000–1500 V, and enable parallel operation for system scalability, a single hybrid inverter without a dedicated HV battery management controller still wouldn’t be enough to convince me to integrate it into a project. Personally, for commercial installations, I would always favour a single-vendor solution. I have no interest in dealing with third-party battery manufacturers, nor in having my hands tied when it comes to advanced battery configuration.
For detached houses and medium-sized residential properties with at least one EV, this model will struggle to keep pace with growing energy demand. On top of that, the investment required for an HV system will be considerably higher.
Hopefully, this is only the beginning of the HV product range, and we’ll see a fully developed single-vendor ecosystem in the future.
I am just wondering here but why is always RS range with MPPTs included ? It makes the price significantly higher and for grid-tied instalations i tent to avoid DC-Coupled solar for Victron because theyre low voltages and forbidden use of Optimisers which are mandatory in our country and rightfully so. So i am paying for a part that i wont use. But on the other hand i love the MP2 and also MultiRS is pretty sweet (But expensive and with mppts doesnt make sense for my use).
Also very long ago i have seen some demo video with inverter hidden under the blanket and showcasing bidirectional EV DC charging. I would hope that will be an actual product in the future. And also i really hope they will not lock up the ecosystem just because High voltage is present. Because that i think is the biggest strenght of this ecosystem. That your imagination and coding skills are the limit.
There in an Inverter RS without PV and a Multi RS without PV is also on the way.
The 30kW model of the HS19 is also planned without PV.
The next EVCS will be ready for V2G.
Victron said they want to be a bit more restricted at the HS19 with regards to supported batteries.
This is the current list of supported batteries:
Thank you for reply!
I am relly looking forward for MultiRS without MPPT! It would be great way to upgrade existing instalations with noise problems 
I know about inverter but that has no transfer switch so no luck for me. But actually it would be pretty nice if we would get external transfer switch for that one. Than it would be basically Multi for very nice price and parallel support !
V2G support is also very nice !
Multiplus has a range from 3kW to 15kW.
If Multi RS, ie. a high frequency, high efficiency device will have a monophasic 9kVA/7kW version, that could also work in 3 phase configuration, will be a best seller for home ESS.
So in other words, a 50% more power on all current specs for a Multi RS.
Multi RS without mppt is already out:
However, I saw it on several websites, it seems to be only 100-200€ cheaper than Multi RS solar on average. Not very attractive. Hope price will go down in the coming months
I think the price of the HS19 is as expected, and because this is High Voltage and a Victron High quality product with all the intregration and other really good stuff this is even a good price, but who am I…
I really agree with the unsupported hardware with parallelling a HS19 inverter, I don’t think that a normal house would have expensive High Voltage batteries, and so the only people who would have this, is: a companies with high loads and a big grid connection.
This is such a weak point that the current version will not be sold that much, I don’t think.
I even found this a shame that after 4 years with the MultiRS 48/6000, they still don’t have the ability to run parallel. Not that I need this that much, but this should’ve been one of the top priorities after the 3 phase configuration.
Victron really needs to work on parallelling the High Frequency inverters.
Hi, @M_Lange
This is excellent news and something that should have been done a long time ago!
As for the HS19 series, I personally wouldn’t include any of the proposed list of compatible and supported batteries in a large-scale commercial project alongside Victron equipment. In the high-voltage segment, where system resilience and reliability are the primary concerns, the expectation is a reputable single-brand solution with full accountability resting with one vendor/supplier. That’s exactly why one particular manufacturer (no need to name names) currently dominates the HV hybrid systems market. They offer the complete package: high-power hybrid inverters, rack-mounted battery systems, and battery management units. Admittedly, the reality isn’t quite as polished as it may appear, but if you design the system with around 30% redundancy, it operates without any significant issues.
Hi, do you have any information about the coming EVCS?
I still think that we should be happy about the real coming of the HS19, because we were waiting for it to come for a few years already!
You can take endless pleasure in everything, even something as simple as the sun rising every day.
But when it comes to HV systems, it’s the client who should be pleased.
To ensure the client is satisfied, before the engineering of any project begins, the contractor prepares a techno-economic feasibility study, including comparative assessments of the proposed solutions based on systems from several manufacturers. The client then convenes a technical review meeting attended by the engineering specialists responsible for project acceptance. During these meetings, three key aspects are discussed:
Let me tell you a secret: these days, in most cases, the winning manufacturer is the one whose name I deliberately choose not to mention, and whose products I’m not particularly fond of. However, the decision ultimately rests with the client, because they’re the ones paying the bills, and naturally they want to be satisfied with their investment.
That’s how things work in the kingdom of HV systems. 
The key word is “prepared”…
In my opinion it is very great to see the HS19 coming. But String capacity of 600V vs 13,5A is very strange.
With rather old modules you hit the limit with the 600V and with brand new once you can work in residentail homes with the 600V, but how should that ever work with 13,5A ?
Guess that is why Fronius delivered the SC versions. Someone an idea why this “combination” happend? Issues with certifications? I saw a very missleading message from Mr Bob Hopman that this is just the first try and that there is a new version coming - obvisouly possible rather quick than a long wait.
I was as well looking for a manual of the HS19. Wanted to check if a battery is mandatory or if it can be used as well as an inverter - like a fronius …
Maybe someone from Victron can hop in here? Many thanks
The speciations of the HS19 are somewhat disappointing considering the length of time it has been in development.
Have some questions;
1.) Parallel capability. It’s stated the initial release doesn’t have parallel capability. Is this a hardware constraint or software constraint? Will early adopters be able to expand their system in the future?
2.)Can the HS19 support imbalance loads across phases above 5kw per phase. Also referred to Asymmetric Phase Feeding.
More or less all other vendors in this space can do so. E.g on a 30kW 3-Phase HV Hybrid Inverter, you could have 15kW load on one phase, 10kw on another and 5kw on the remaining phase, and it will function and perform totally fine.
This is the single biggest downside to Victron LV Multiplus and Quattro based 3-phase setups, particularly in off-grid applications as you have to well oversize inverters to handle biggest load on a phase, resulting in extra cost and inefficiency.
In the example scenario above you would need 60kVA of inverters!
I would hope this is supported!
Thanks
I doubt anyone here has that answer. The RS is yet to receive parallel support for on-grid applications. Victron do not comment on futures here but this is something discussed many times for different products.
For the big MP2’s we have to use an ATS, the challenge is architectural, but that is very different to that of the RS/HS family, being able to reliably time the switching of the input relays.
Some obstacles can be fixed by code, others need more robust changes, something you don’t really know until you trip over it in testing.
The history of getting this capability supported on-grid is not very encouraging, hopefully that is different here, but the community will not know before anyone is ready to announce it.
As far as I know from the InterSolar it’s a HW limitation of the 1st version.
I see the datasheet states:
Future hardware revisions will support parallel operation.
And that continuous output per phase is 22A, so presumably no load asymmetry?
All these hybrid systems from other vendors (especially the one whose name we don’t like to say out loud) that claim to support phase load imbalance look great on paper, right up until you start running them in parallel and exposing them to high reactive loads. That’s when things always get interesting. And the only real fix is installing additional STATCOM equipment.
The main issue is how quickly the inverter can deliver the power required when the load suddenly ramps up. If there’s a phase imbalance at that moment, it can lead to faults and bring the whole system down. That’s why the type of loads the inverter is supplying is such a critical factor.
And that’s not even the end of the surprises with HV systems. In off-the-record conversations with representatives from a number of companies, including manufacturers of large-scale HV ESS, the main issue that keeps coming up lately is inter-module balancing of the battery stack, a problem that nobody has truly solved yet. Every time I raise this question, representatives from every company suddenly start looking at the floor and repeat the same mantra: it’s not critical and it’s handled by the series module management controller. And if ΔSOC or ΔV drift outside the acceptable tolerances, you can always perform a service equalisation of the entire stack. Brilliant. Now that’s a solution! Thanks! I’m sure the customer will be “delighted”. 
