# Dynamic ESS, PV coupled, facade & roof PV fields

**URL:** <https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565>\
**Category:** Show us your system\
**Tags:** node-red, parallel, dess, diy\
**Created:** [8 August 2024 07:36 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565 "2024-08-08T07:36:31Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [8 August 2024 07:36 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/1 "2024-08-08T07:36:31Z")

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Hi, community

My system  
It is quite complex, using Dynamic ESS to get planned power outages from grid provider in order to define “no charge” timeslots and force DESS to pre-charge batteries accordingly

Diagram

```mermaid
graph TD
    subgraph AC Coupled Station 1
        subgraph Phase L3
            PV1[920W 2x460W Mono] --> MPPT1[Victron Smart MPPT 150/70]
            PV2[3680W 8x460W Mono] --> MPPT2[Victron MPPT RS 450/200]
            PV3[4640W 8x580W Mono] --> MPPT2
            PV4[4640W 8x580W Mono] --> MPPT2
            
            MPPT1 --> LynxBMS[Lynx Smart BMS 500]
            MPPT2 --> LynxBMS
            EM24[EM24 Meter] --> Inverter1[Voltronic Axpert King 5000]
            Inverter1-->Victron
            PV5[2850W 10x285W Poly] --> Victron[Victron MultiRS]
            PV6[2850W 10x285W Poly] --> Victron[Victron MultiRS]
            LynxBMS --> Battery1[28.5kWh LiFePO4 3x parallel sets]
            Cerbo1[Cerbo GX] --> CAN1[Daisy Chain CAN Bus]
        end
        subgraph Daisy Chain CAN Bus
            CAN1 -.- MPPT1
            CAN1 -.- MPPT2
            CAN1 -.- Victron
            CAN1 -.- LynxBMS
        end
    end

    subgraph AC Coupled Station 2
        Victron --> MultiPlus[MultiPlus-II 3000/48]
        MultiPlus --> Battery2[Pylontech US5000 & US3000C]
        Cerbo2[Cerbo GX]
    end

```

Video showcase

[![](https://europe1.discourse-cdn.com/victron/original/1X/e5693bd3f841179b0b0f7e92921337bebda83a4b.jpeg "Ukrainian Dynamic ESS AC coupled station showcase") ](https://www.youtube.com/watch?v=Ah_sFKu-f2w)

Happy to answer questions and thanks to the local Ukrainian community as well as Victron community for answers to a lot of my questions

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [22 October 2024 14:20 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/2 "2024-10-22T14:20:02Z")

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Added +3-kWh lifepo4

[![](https://europe1.discourse-cdn.com/victron/original/2X/7/74255b135c790776577c3c9037fcf1ae73378774.jpeg "60кВт\*г lifepo4 1180Ah 16s - Підготовка до зими") ](https://www.youtube.com/watch?v=bqU9QzGd9os)

Now system is on 58.5kWh battery

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**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [22 November 2024 08:48 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/3 "2024-11-22T08:48:15Z")

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Changed DESS auto schedule syncing for the planned grid cuts - now I use negative prices in order to force DESS to never plan any charging from grid at a time when there is no grid planned

 ![image](https://europe1.discourse-cdn.com/victron/original/2X/f/fa31a05619a28aac1e2a883402f621978cb43721.png)

If you decide to add to DESS schedule of grid cuts for #ukrainian community - I’d appreciate @Barbara  
Long story short - we have a schedule from grid providers when grid won’t be available due to stabilisation needs, so in order for me to make DESS working properly I need to game with DESS fixed prices via Node-RED with help of @dfaber and put some fake negative prices to it for DESS to never use timeframes for planned charging/feed-in

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [6 December 2024 14:29 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/4 "2024-12-06T14:29:33Z")

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Finally, thanks to Roy and @dfaber we can toggle MultiRS via NodeRED and serially connected systems can properly react to grid cuts

[![](https://europe1.discourse-cdn.com/victron/original/2X/4/438da9f794bfb82c3f55a28a5be45535332e6b4a.jpeg "Advanced grid meter plus multirs") ](https://www.youtube.com/watch?v=GaN7Ins8SZQ)

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [9 December 2024 16:59 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/5 "2024-12-09T16:59:27Z")

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Full video about what I was able to accomplish in NodeRED in order to

- control planned/unplanned grid outages
- use Excess solar in second system to charge batteries
- Automatically update prices in DESS
- Overcome Passthrough mode in MultiRS when VM meter is offline

See video

[![](https://europe1.discourse-cdn.com/victron/original/2X/8/8a6fdaecdba4d2b34c948c32e87716ac6b7a137e.jpeg "NodeRED + DESS + Excess Solar usage - Victron automation on steroids") ](https://www.youtube.com/watch?v=RQNFCH41R9k)

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [4 January 2025 17:38 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/6 "2025-01-04T17:38:39Z")

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Installed secondary MultiRS - serially connected  
First ( left - DESS + ESS ). Second ( right, PowerAssist only)

 ![image](https://europe1.discourse-cdn.com/victron/original/2X/7/77a93ef9290c144b08bda6940f232bcaf867de99.jpeg)

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**Author:** ![RGroothuis](https://avatars.discourse-cdn.com/v4/letter/r/3ec8ea/32.png) [@RGroothuis](https://community.victronenergy.com/u/RGroothuis)\
**Post date:** [7 January 2025 00:15 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/7 "2025-01-07T00:15:54Z")

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Nice setup, great to see the Multi RS in a DESS setup. Is DESS already fully supported on the Multi RS? I understood that the DESS features are running behind compared to the Multiplus II devices. What is your experience?

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [8 January 2025 19:03 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/8 "2025-01-08T19:03:51Z")

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DESS is fully supported in recent firmwares  
There are some limitations ( no parallel setup ) - that’s why I do use MultiRS in serial in order to get 6kW+6kW with PowerAssist on a single phase

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**Author:** ![RoarPowerNZ](https://avatars.discourse-cdn.com/v4/letter/r/8c91f0/32.png) [@RoarPowerNZ](https://community.victronenergy.com/u/RoarPowerNZ)\
**Post date:** [8 January 2025 22:49 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/9 "2025-01-08T22:49:12Z")

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Great video Andrii.  
When you were on your roof, what is the cable or rod that runs down the middle of the ridge flashing? It looks like it is held by brackets every 1m or so, by insulated rings maybe?  
Is it lightening protection?

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [9 January 2025 16:26 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/10 "2025-01-09T16:26:35Z")

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It is lightning protection, yeah  
It’s 10mm diameter aluminium cable, installed by the edge of the roof in order to help possible strike to bounce off the roof into water drainaige towards the ground  
There is a [video of roof safety](https://youtu.be/ZseMwPQKtUE) where I do explain of how it is organised -it is in Ukrainian, so feel free to enable subtitles and translation of subtitles to your language. Or ask questions, I’ll do some photos if needed

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [7 July 2025 14:18 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/11 "2025-07-07T14:18:52Z")

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Added custom ESS ( on top of Victron DESS ) for the overloaded PV systems

[![](https://europe1.discourse-cdn.com/victron/original/3X/7/a/7aba6b0c7f7c4526572ed728edee7da692dcdae9.jpeg "customESS ( вдосконалення Динамічної ESS від Victron ) - пів року генерації") ](https://www.youtube.com/watch?v=jB0tSU-VgP0)

+~30% PV generation vs vanilla DESS atm

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<div class="post-metadata">

**Author:** ![podarok](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/podarok/32/3687_2.png) [@podarok](https://community.victronenergy.com/u/podarok)\
**Post date:** [1 July 2026 16:04 UTC](https://community.victronenergy.com/t/dynamic-ess-pv-coupled-facade-roof-pv-fields/565/12 "2026-07-01T16:04:44Z")

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Bumped to 63.5kWh battery  
Got Net Zero annually

Installed self made Virtual BMS

 ![image](https://europe1.discourse-cdn.com/victron/original/3X/5/d/5d7b249a5b7dee504a2dbcaf5e49af3d4b759961.jpeg)
