Hi,

I have designed this system, will it work for ESS?

We want to use only wind gen for now, add solar later. Use surplus wind to charge battery and/or export to grid. Top-up battery overnight when rates cheaper if not enough wind. Power site loads during the day.

• Multiplus-II 48/3000,
• Instabreeze 2.2kW 48V wind turbine,
• SmartShunt on Wind DC input set as wind generator meter,
• Pylontech US5000 48V 4.8kVA battery,
• Instabreeze wind charge controller for Lithium batteries (seller will set parameters from PylonTech battery datasheet),
• Site energy meter.

Schematic of wind charge controller:

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How many of you have added a small home wind turbine to your solar system.

Hi,

My installation consists of a 48/5000 Multi-plus a Cerbo GX a GX touch and two strings of panels with two MPPT VE can 250/100 controllers and three US2000 Pylontech batteries which have been working excellently for the past 12 months ( so good to be off grid).

Although on most days the SOC is back to 99% by midday or earlier I would still like to add a1500 watt wind turbine for those winter days that don't produce enough solar to fully charge the batteries and then need the Gen set to top them up. I believe using a 2kW off grid 48 volt wind controller with a dump load fit for purpose would work well with my system but I just wanted to check with the experts for any tips and traps. The idea would be to parallel the wind turbine controller up to the battery side of one of the MPPT controllers and also set the parameters on the wind controller to a lesser value than the DVCC so as to not override the Cerbo and damage the batteries.

I would greatly appreciate anyone's thoughts and advice.

Regards

Morgs

hi, i would like to know if victron mppt charge controllers support wind turbines? if yes could i run 2 controllers in parallel, one with solar and one with a wind turbine?

Thanks

Lief.

Hi Guys, I'm planning my off-grid system and I need some help with the design.

My initial plan is to use Mulitplus II GX/MultiGrid with DC coupled PV connected to the BYD battery pack. The issue at this stage is the optimal connection of the wind turbine (3 phase generator).

Inverter recommended for this turbine can operate in both on-grid and off-grid installations. In on-grid mode it would be connected to AC out of the Mulitplus. If I'm not wrong surplus energy can be used to charge the battery but without any control of the Victron or BYD BMU.

Off-grid model can be connected to the batteries and work without the grid but the communication with BMU/BMS isn't supported.

Do you think that it's possible to use output of the wind inverter as an input to the Multiplus (or as genset for MultiGrid)?

This is a schematic for the off-grid, 'connection point to the electricity grid' will be the Multi.

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Both Multi and PS100 will be connected to the same battery pack, but charging/discharging will be disabled in PS100. This should allow Multi to use power generated from wind to charge the batteries in line with BMU communication. If I'm not wrong it will also resolve the problem with overcharging the batteries.

What's your thoughts about this approach?

We have the following 48V Victron setup:

• Multiplus II
• 150/35 MPPT
• CCGX
• 48V, 260Ah SLA array

As an experiment we are trying to add some wind power to keep the batteries topped up at night and in bad weather etc. The wind controller unit is setup to have a higher cutoff than the Victron and during testing we are putting about 4-5A into the battery array. The unit is simply wired in parallel with the DC bus.

The Victron MPPT seems to behave as expected as it approached the set-point (current backs off to less than 1A) until it switches to float mode.

What appears to happen when the Victron switches to float is that it gets confused by the other charging source and switches back to bulk charge mode. This is then dumping the full 35A into the battery and taking the bus voltage up to ~55V, until we pull the plug to stop it.

So we are wondering if there is something in the MPPT configuration options that would enable us to stop the Victron from behaving like this

Bonjour,

Je dois trouver une solution fiable pour exploiter l'énergie d'une génératrice d'une centrale hydro-électrique. C'est une génératrice monophasée dont la fréquence est variable (entre 0 et 65 Hz), et la tension entre 0 et 230V (auto-régulée). La puissance de la génératrice est 12 kW, mais la turbine est estimée à 5 kW mécanique maximum (24h/24 presque toute l'année).

L'installation sera équipée d'un Multiplus (ou Quattro) 48/10000, un Cerbo, des Pylontech.

J'ai identifié 4 solutions :

1) Couplage réseau de la génératrice qui va la maintenir à 50 Hz. Injection du courant et gestion du surplus par l'onduleur chargeur comme un onduleur AC non communiquant. (les clients ne le souhaitent pas pour limiter le surplus sur le réseau)

2) Directement en entrée du Multiplus / Quattro : j'ai peur des découplages fréquents et de la mauvaise stabilité de la fréquence et tension

3) Redressement de la tension alternative et utilisation d'un onduleur PV zéro injection.

4) Redressement de la tension et utilisation d'un MPPT RS 450/100.

C'est sur cette dernière option que je préfère aller, mais j'aimerais avoir un avis sur la fiabilité et le niveau de redressement qu'il faut. Si je mets uniquement un pont de diode, est-ce que le MPPT va supporter les variations de tensions sur le long terme ? J'imagine qu'il y a un gros condensateur en entrée du MPPT qui va devoir absorber toute l'énergie entre deux ondulations... Il faudrait mettre un filtre passe-bas LC pour limiter ça mais jusqu'à quel niveau de perfection ?

Quelqu'un a déjà fait quelque chose de similaire ? (Ou avec une grosse éolienne c'est le même problème) Je suis aussi preneur de références de boitiers qui peuvent faire une bonne régulation et sortir une tension réellement constante pour 5 kW !

Merci d'avance

Hi all - Having used these forums for the research/planning, I wanted to share our successful experience with adding a 400W Wind Turbine (Primus Air Silent X) to our Victron-based solar power system and enabling remote monitoring capabilities via the Cerbo GX and VRM.

We installed this on Greens Ledge Lighthouse - which is about 1 mile off the coast of Norwalk, Connecticut. We have ~3kwh of solar capacity and wanted to add wind to help provide supplemental power in the winter months, given our abundance of wind resource.

To enable remote monitoring, we used a SmartShunt configured as a DC Energy Meter. We initially set it to "Wind Turbine" but this did not show up in the VRM (only accessible via the VictronConnect app and Remote Console).

When changed to "PV Charger" it showed up in the VRM alongside the solar panels, and this has been a good setup for us. We're able to see real-time production in VRM, see historical production via a device widget in VRM, and track the cumulative output via the VictronConnect app.

Production-wise - we've been monitoring it for about 2-3 weeks and are on pace to produce about 20kwh for the month. It has a steep power curve, so the vast majority of production comes when winds are in the 20-30mph range. We produced about 3-4kwh in a 24-hour period when we had ideal conditions.

When wind speeds are below 20mph or above 30mph - the output is generally minimal. However - the unit is not optimally positioned (about 20-30% of the wind is blocked by the lighthouse), so others may have better experience in lower and/or less turbulent wind conditions.

We're happy with the production and are considering adding a second and perhaps a third unit. We'll attempt to optimize over the coming season and report back any significant findings.

We post updates about the restoration work and the off-grid systems on our Instagram and Facebook if folks would like to follow us and/or ask any questions.

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Have a client with a BYD / Victron set up. Has a 150/70 controller for solar. 250/60 controller for hydro. The 250/60 is set up with using relay to divert load when BYD doesn't need anymore power. Diversion is done by a 230V relay from the power system to electric underfloor heating.

Problem: When diversion is active and it's sunny the system clips the 250/60 and uses the 150/70 to power the diverted load which I need to keep the 250/60 with load to stop over spin of the hydro.

Question: How do you prioritise one MPPT over another MPPT when EXT controlled by BYD/GX?

Hello. I am still new to the world of solar/renewable energy. I have become involved as my boat now has two Victron 100/30 MTTP controllers for the 2x310w solar panels. These charge my Lithium batteries -- well they will, the lithium batteries will only be installed next week (today lead acid batteries are installed). Of course, these controllers are configurable and I will swap them over to the lithium settings as we drop the new batteries in.

I am adding a Wind Turbine to help out during times of little or no sun - while the supplier tells me that its fine to connect to the batteries, I am deeply concerned due to the lack of any configurability on the (supplied in the same box) wind turbine controller.
So I was considering (without sufficient knowledge so that I why I am here) adding a

Orion-Tr Smart 12/12-30A Non-Isolated DC-DC charger between the provided controller and the battery. My goal is to regulate/clean and control the power coming from the wind turbine.
I also saw a couple of suggestions to use the Victron BMS to do the same job.

Can you please help me with a solution - not requiring too much knowledge or a major build-out -- I want to protect the lithium as much as possible.

Thanks heaps for your input.

Hi all,

Grid parallel ESS

24V system

SmartShunt 500A

2x MPPT 100/30

Multiplus ii

Cerbo Gx

4x UltraMax LiFePo4 102Ah 24 "drop in" batteries with internal BMS in parallel (408 Ah)

500W wind turbine (not yet integrated)

I have a small wind turbine which I want to safely integrate into my existing ESS setup.

This is the charge controller which was supplied with it (Amazon link) https://amzn.eu/d/d7SEs6C

1. Can I safely use this type of wind controller to integrate with my existing setup? I would intend to place another SmartShunt in-between this and the existing Shunt and configure it as a DC energy meter, so as to see the energy listed separately on thr Cerbo.

1a. If I can't use this controller, what sort of controller can I use?

2. How do I prevent overcharging of the batteries? I don't want to create an unsafe situation.

3. Anything else I should be aware of?

Many thanks as always.

Hi,

I've just fitted a Multiplus II ESS system at home with 4 off the Pylontech US5000 batteries and it's working beautifully. We have a Britwind 5kw wind turbine supplying power to the house via an SMA Windy Boy 5000 inverter. I have set this up on the critical loads AC1 out so it can supply power to the house even when we get a power cut which happens fairly often where we are in the Highlands of Scotland.

We have a power cut at the moment and I am a little concerned what will happen once the batteries have fully charged. Normally any excess electricity would just bleed back into the grid but as the grid is isolated I am unsure what will happen once the batteries get to 100%. Will the inverter cut it's output, will bad things happen?

I should add that the Windy Boy is around 10 years old and does not communicate to the Cerbo GX.

I can just isolate the Windy Boy manually from my system and then it will shut down as it used to in a power cut but obviously I may not always be on hand to do that in the future.

Can anyone let me know what happens if a 5kw inverter output has nowhere to go?

Thanks, Barry

We are a small start-up that is 3D-printing windturbines from recycled plastics. We would like to know how we can connect them to the grid with and without solar. For now we have a windturbine of 500Wp and 3000Wp that we want to test in this set-up. Our MPPT-controller also has a DC-DC converter so output voltage can be whatever it needs to be.

Connecting our windturbines to a DC-bus would be an option to consider:

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However, it appears that only the Multiplus and Quattro can connect to the grid? We are in Europe (230V, 50Hz grid).

We have read https://www.victronenergy.com/live/ac_coupling:start and watched https://www.youtube.com/watch?v=tbpQzEZTElI but these questions remain open.

Just purchased a small wind generator, I want to add to my RV Victron system, I have a Multi plus II (12v), 150-100 MPPT, and 2 Battle Born Game changers, what's the best way to connect it's output to the Victron equipment? To the MPPT, or after it? It's a 12v generator has it's own controller that's needed to provide braking, can I just connect the wind generators controller output to the input of my Victron MPPT? Since it's a mobile system I want to make it as simple as possible but efficient and safe for all equipment.

Hi.

I have a cerbo gx in the cabin. There I have a shunt from before and want to add an extra shunt. The plan is for it to measure the 24v dc current coming from the wind turbine (Primus Windpower Air 40, 24V) into the battery bank. will this work?