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Sunsynk (DEYE) Hybrid Inverters

1…4142434446

Comments

  • #1352
    graememk
    Moderators, Home & Garden Moderators Posts: 7,267 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123849950#Comment_123849950

    The complete thing your looking to do isn't possible.

    PV always goes to the house first.

    But to do more you'll have to look into home automation (usually home assistant)

    Possibly mode switch between selling first and zero export.

    Or change the battery charge limit to only charge if export is above X



  • #1353
    championc
    Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭championc


    A better way is to change the Max Charge Current down to Zero when your night rate battery charging finishes.

    This way, all solar excess will be exported, and the solar and battery will meet the house demand. So the battery will descend during the day on a poor day (depending too on the size of the house load)

    Then use the Selling First option later in the evening to dump the excess.

    Remember to reset the Max Charge Current back to max at 02:00 !!!



  • #1354
    blobert
    Registered Users, Registered Users 2, Paid Member Posts: 1,573 ✭✭✭blobert


    https://www.boards.ie/discussion/comment/123850091#Comment_123850091

    Thanks,

    Would I have to do this manually each day on the inverter or can I set it to happen each day via settings?



  • #1355
    graememk
    Moderators, Home & Garden Moderators Posts: 7,267 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123850166#Comment_123850166

    Would need to be done via automation.



  • #1356
    championc
    Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭championc


    Automation in Home Assistant to change any settings like the current or the work mode



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  • #1357
    JohnySwan
    Registered Users, Registered Users 2, Paid Member Posts: 1,134 ✭✭✭JohnySwan


    Solar-assistant worth looking in to, more plug and play than HA.



  • #1358
    blobert
    Registered Users, Registered Users 2, Paid Member Posts: 1,573 ✭✭✭blobert


    https://www.boards.ie/discussion/comment/123850816#Comment_123850816

    Thanks for the replies.

    Home Assistant looks beyond my pay grade and patience levels!

    Solar Assistant looks simpler and you can buy a pre configured Pi but I'm not sure if it has the level of programming needed.

    Ideally I'd like to be able to:

    (1) Charge the battery when I want to, ideally during short period if cheap EV rates

    (2) Run the house on mains when I want to. So today let's say my battery is still at 80% when it gets to Night Rate hours. It would make most sense to leave it there and run house on mains at night, top it up to 100% and then run on battery during the day. But at the moment the battery will run till it's empty, then on mains, then charge up again before Night Rate ends which is inefficient.

    (3) Run the house on battery when I want to. Basically just running the house by day on battery and exporting all PV as it will be at a higher rate. This would even matter more when I get swap to Pinergy and want to be running the house on 5c electricity charged at night while exporting all PV at 25c by day.

    Let me know if you think that's possible with Solar Assistant. Looking at the programming here for Solar Assistant it maybe looks too basic: https://solar-assistant.io/help/automation/table



  • #1359
    JohnySwan
    Registered Users, Registered Users 2, Paid Member Posts: 1,134 ✭✭✭JohnySwan


    https://www.boards.ie/discussion/comment/123851897#Comment_123851897

    You can do all that with SA, plug and play. Buy the Pi, minimum fuss.



  • #1360
    blobert
    Registered Users, Registered Users 2, Paid Member Posts: 1,573 ✭✭✭blobert


    https://www.boards.ie/discussion/comment/123852073#Comment_123852073

    You've sold me! I'll order it now



  • #1361
    SD_DRACULA
    Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭SD_DRACULA


    https://www.boards.ie/discussion/comment/123852110#Comment_123852110

    Have you checked the deye app, I think they recently added some additional features that might let you do this, I don't use it myself but I thought they added something like that.



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  • #1362
    blobert
    Registered Users, Registered Users 2, Paid Member Posts: 1,573 ✭✭✭blobert


    https://www.boards.ie/discussion/comment/123853628#Comment_123853628

    Thanks, I had tried to set it up previously but could not get it to work, will try again and see



  • #1363
    funnyname
    Registered Users, Registered Users 2 Posts: 1,843 ✭✭✭funnyname


    We have a Huawei system for the past 15 months, all going well bar back up in the event of the grid going down. We could get a Huawei Smart Guard which would provide essential power for lights, heat circulation pumps and sockets for the kitchen etc but that costs €2,000 + VAT.

    We also have an EV with V2L so I'm wondering would we be better off ditching the Huawei equipment (5kw inverter and 10kwh battery), selling them 2nd hand and going with a Deye inverter that can accept the V2L as generator input and setting up a changeover switch, that way we would be able to manage ok if there was a major disruption like in January when the grid went down for 4 days.

    Also we could only install 18 panels whereas we could fit at least 24 so if we changed inverter we could add an additional 6 panels which would also mean the upgrade wouldn't attract any VAT. So i'm thinking to do this it might not cost much more than buying the Huawei smart guard but the benefits are way greater.



  • #1364
    SD_DRACULA
    Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭SD_DRACULA


    https://www.boards.ie/discussion/comment/123882870#Comment_123882870

    Not sure what the Huawei battery costs but no chance they can get close to 1500 for 16kwh I would assume, which would be the biggest advantage compared to being locked down to their own over-priced stuff



  • #1365
    funnyname
    Registered Users, Registered Users 2 Posts: 1,843 ✭✭✭funnyname


    10kwh of batteries probably cost us about €5.5k and throw in the inverter for about €1.5k so I'd guess we'd be very lucky to get half that back if we sold via eBay or similar.

    Another issue would be getting a new installer to stand over the work already done that would be kept and integrating it with a new set of batteries and the inverter.



  • #1366
    championc
    Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭championc


    Sometimes you need to write off the support, and go solo



  • #1367
    JohnySwan
    Registered Users, Registered Users 2, Paid Member Posts: 1,134 ✭✭✭JohnySwan


    Two of my batteries have bulged and needed to be returned to SunSynk. I'm now 12 weeks since I reported the issue and there's still no resolution, and radio silence from their end for the last 15 days. Support isn't all it's cracked up to be😁



  • #1368
    unkel
    Registered Users, Registered Users 2 Posts: 60,115 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/123889378#Comment_123889378

    I eventually got a replacement inverter from Sunsynk and on another occasion a new daughterboard. But I think it took about a year for both and I hammered them with emails

    I guess your batteries are still working, so you're doing ok. Wouldn't overly worry about them being swollen

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #1369
    tnegun
    Registered Users, Registered Users 2 Posts: 1,958 ✭✭✭tnegun


    https://www.boards.ie/discussion/comment/123795412#Comment_123795412

    Can I just ask if anyone is using this is it still working for you?


    I'd a couple of issues recently and I don't know if when fixing those, I knocked this out somehow. The Sunsynk/Deye addon was also updated and that messed up some of the sensor groups so may have been that. I can send the time, and it appears to accept it but it's not being updated for whatever reason.



  • #1370
    JohnySwan
    Registered Users, Registered Users 2, Paid Member Posts: 1,134 ✭✭✭JohnySwan


    https://www.boards.ie/discussion/comment/123889378#Comment_123889378

    So, 3 months after reporting the bulging batteries, Sunsynk have agreed to send replacements. Probably another 3 months until I get them 🤣



  • #1371
    Markus Antonius
    Registered Users, Registered Users 2 Posts: 2,944 ✭✭✭Markus Antonius


    Is the solarman datalogger still the gold standard for interfacing with the Deye/Sunsynk? They seem a bit hard to find…



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  • #1372
    tnegun
    Registered Users, Registered Users 2 Posts: 1,958 ✭✭✭tnegun


    I've two of these inverters now, and I somehow damaged the logger on the second one and it no longer works. I'm just using the Home Assistant RS485 addon with a Pi for it and can do everything I could do via the logger if not more. I'm considering disconnecting the other logger, as it's not doing anything for me, so barring a firmware issue, I'm not sure I'll need it.



  • #1373
    Markus Antonius
    Registered Users, Registered Users 2 Posts: 2,944 ✭✭✭Markus Antonius


    https://www.boards.ie/discussion/comment/123968477#Comment_123968477

    So just an RS485/USB cable directly connected to the PI? I think that sounds like the job for me. It didn't require any special coding to get working?



  • #1374
    tnegun
    Registered Users, Registered Users 2 Posts: 1,958 ✭✭✭tnegun


    Not much coding required, just install mbusd on the pi with a usb RS-485 adapter and point the HA addon to the pi's ip address. It's been pretty solid for the last 10 months or so that I'm running it.



  • #1375
    THE ALM
    Registered Users, Registered Users 2 Posts: 1,695 ✭✭✭THE ALM


    https://www.boards.ie/discussion/comment/123968458#Comment_123968458

    Solar Assistant is another option, have been running this without any problems



  • #1376
    Markus Antonius
    Registered Users, Registered Users 2 Posts: 2,944 ✭✭✭Markus Antonius


    https://www.boards.ie/discussion/comment/123968724#Comment_123968724

    Strongly considering this option as well. The PI with it preloaded is not a bad deal on the website. However, while it is more or less plug and play, I did notice some online say that it is not very programmable (at least compared to Home assistant). Trying to weigh the two of them.

    Just a seperate question on the RS485 - does it need to be hard-wired into the "Wifi" slot of the inverter or is there somewhere else it goes? Some of the crimped-out-of-box USB cables online are €50+ 😬

    Not tight, just trying to be economical!😳



  • #1377
    graememk
    Moderators, Home & Garden Moderators Posts: 7,267 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123969116#Comment_123969116

    Depends on the inverter, some have a dedicated RJ45 socket, some use a combined CAN and RJ45 where you need to use a splitter.

    I use Wifi dongle and RS485

    This has esp32 esphome code too https://github.com/slipx06/Sunsynk-Home-Assistant-Dash/tree/main



  • #1378
    Markus Antonius
    Registered Users, Registered Users 2 Posts: 2,944 ✭✭✭Markus Antonius


    https://www.boards.ie/discussion/comment/123969219#Comment_123969219

    I have the 8K Deye (SUN-8K-SG01LP1-EU) with these connections:

    AAAADEYE.png

    It's hardly the DRM port I would connect to? Looking online it seems thats specifically for the Supply company to control the inverter (in regions such as australia where this is compulsory)

    The only other option I see is to wire it to the Wifi interface.

    Here's an image:

    2025-11-07 12_46_16-WhatsApp.png
    Post edited by Markus Antonius on


  • #1379
    THE ALM
    Registered Users, Registered Users 2 Posts: 1,695 ✭✭✭THE ALM


    https://www.boards.ie/discussion/comment/123969254#Comment_123969254

    It goes into the RS485 port and then you can use a splitter for the CAN to a battery

    RS485 - Deye 12-16kW SG01LP1 Single-Phase Hybrid



  • #1380
    Markus Antonius
    Registered Users, Registered Users 2 Posts: 2,944 ✭✭✭Markus Antonius


    https://www.boards.ie/discussion/comment/123969372#Comment_123969372

    Ah so it's the BMS port it goes into. Would never have figured that out. I know it was discussed plenty of times earlier in this thread but still, it's not so obvious!



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  • #1381
    SD_DRACULA
    Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭SD_DRACULA


    https://www.boards.ie/discussion/comment/123968724#Comment_123968724

    Just went to update this to the lastest version and looks like they added extra cost for the updates, 2 years free updates and then you have to pay, not a fan of this model.

    Don't remember that being there when I did buy it 2 years ago.



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