GivEnergy new install - how do I stop grid export?

Hello,

I have this new solar system installation, Givenergy and it seems to be sending to the grid all the time.

The battery is 60% charged for example, right now, and it's still sending to the grid.

I don't have a tariff of any kind yet so I am not making any money, I am just sending free stuff to the grid.
Is there any way I can stop this?
I can't see any option in the app to tell it to stop doing this.

Comments

  • 70sbudgie
    70sbudgie Posts: 842 Forumite
    500 Posts Third Anniversary Photogenic Name Dropper
    I don't have a battery, so hopefully someone with experience of GivEnergy systems will respond.

    In the meantime, is there anything in the settings about priorities? If so, it sounds like you want export to grid to be the lowest priority.

    I have also read on these boards about capacity indication issues (it says it's full when not, or empty when half full etc) with some batteries, but I can't remember if they were GivEnergy ones.
    4.3kW PV, 3.6kW inverter. Octopus Agile import, gas Tracker. Zoe. Ripple x 3. Cheshire
  • eidand
    eidand Posts: 1,023 Forumite
    Fifth Anniversary 1,000 Posts Name Dropper
    no, there is no way that I can see to do that
  • propnut
    propnut Posts: 122 Forumite
    100 Posts Second Anniversary Name Dropper
    All battery systems work on a cause & effect basis (ebb & flow). During the course of the day you will see them often exporting and importing. It takes the system a few seconds to respond to halt the relevant action. You might be looking at it thinking it is exporting 600w for example but that is momentary, look a few seconds later and that will have stopped. No way to prevent this. However if you really want to limit your export you can always install an energy diverter that redirects any export to heat your hot water tank. I have 13KW of battery storage, a Myenergi EDDI diverter AND another 8KW of self build lead acid storage that I built when I had and initial self build off grid system. My panels charge the grid coupled batteries first, excess is then sent to the hot water tank and anything left over is send to the lead acids. I have a 10kw 24v to 240v off grid inverter that I then use to pull power from the lead acid to run my garage tools, vacuum cleaner, lawnmower etc.
    15 x JASolar 405w Panels installed 25/11/22, 5 SE,  5S,  5SW
    2 x Growatt Inverters
    6 x Uhome LFP2400 batteries
    Luxpower ACS 3600 Battery Inverter
    7.2KW of off grid Lead Acid storage with 8KW 24v Inverter.
    2 x. Toyota Prius
  • eidand
    eidand Posts: 1,023 Forumite
    Fifth Anniversary 1,000 Posts Name Dropper
    propnut said:
    All battery systems work on a cause & effect basis (ebb & flow). During the course of the day you will see them often exporting and importing. It takes the system a few seconds to respond to halt the relevant action. You might be looking at it thinking it is exporting 600w for example but that is momentary, look a few seconds later and that will have stopped. No way to prevent this. However if you really want to limit your export you can always install an energy diverter that redirects any export to heat your hot water tank. I have 13KW of battery storage, a Myenergi EDDI diverter AND another 8KW of self build lead acid storage that I built when I had and initial self build off grid system. My panels charge the grid coupled batteries first, excess is then sent to the hot water tank and anything left over is send to the lead acids. I have a 10kw 24v to 240v off grid inverter that I then use to pull power from the lead acid to run my garage tools, vacuum cleaner, lawnmower etc.
    thank you, does this Myenergi EDDI diverter work with the GivEnergy system ?
  • propnut
    propnut Posts: 122 Forumite
    100 Posts Second Anniversary Name Dropper
    eidand said:
    thank you, does this Myenergi EDDI diverter work with the GivEnergy system ?
    It should work with any PV system. It has a CT clamp that connects to the live of your incoming household supply which it uses to monitor power coming in and more importantly going out. As soon as it detects outgoing it rediverts that to the hot water. To prevent a race situation between the battery storage and this device you set a threshold e.g.200w and a delay say 5 secs to allow the battery a chance to react first. These two parameters need a bit of fine tuning for each system but once done you just forget about it and let it do it's job. If you don't fancy paying £500 then there is a much cheaper one on Aliexpress for £124 and it does the job just fine it just doesn't have all the features that the Eddi has.
    15 x JASolar 405w Panels installed 25/11/22, 5 SE,  5S,  5SW
    2 x Growatt Inverters
    6 x Uhome LFP2400 batteries
    Luxpower ACS 3600 Battery Inverter
    7.2KW of off grid Lead Acid storage with 8KW 24v Inverter.
    2 x. Toyota Prius
  • eidand
    eidand Posts: 1,023 Forumite
    Fifth Anniversary 1,000 Posts Name Dropper
    propnut said:
    eidand said:
    thank you, does this Myenergi EDDI diverter work with the GivEnergy system ?
    It should work with any PV system. It has a CT clamp that connects to the live of your incoming household supply which it uses to monitor power coming in and more importantly going out. As soon as it detects outgoing it rediverts that to the hot water. To prevent a race situation between the battery storage and this device you set a threshold e.g.200w and a delay say 5 secs to allow the battery a chance to react first. These two parameters need a bit of fine tuning for each system but once done you just forget about it and let it do it's job. If you don't fancy paying £500 then there is a much cheaper one on Aliexpress for £124 and it does the job just fine it just doesn't have all the features that the Eddi has.
    thank you, I'll get one of those!
  • ispookie666
    ispookie666 Posts: 1,194 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    @eidand
    Probably best to provide some more information 
    1. Size of installation 
    2. Hybrid or AC coupled inverter 
    3. Firmware 

    Do you have home assistant 

    Can I suggest you take a picture of the export screen of the smart meter, so that you can claim for every KWh when you setup SEG. 
    “Don't raise your voice, improve your argument." - Desmond Tutu

    System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
    System 2 - 9.2 KWp + Enphase IQ7+ and IQ8AC (Feb 22 & Sep 24) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump
  • eidand
    eidand Posts: 1,023 Forumite
    Fifth Anniversary 1,000 Posts Name Dropper
    @eidand
    Probably best to provide some more information 
    1. Size of installation 
    2. Hybrid or AC coupled inverter 
    3. Firmware 

    Do you have home assistant 

    Can I suggest you take a picture of the export screen of the smart meter, so that you can claim for every KWh when you setup SEG. 
    ok,, here are some details : 

    12x Trina Vertex S 415W All Black Panel solar panel
    GivEnergy 5kW Hybrid inverter
    G2 GivEnergy 5.2kWh LiFePO4 Battery

    Inverter Firmware Version : D0.450-A0.451
    Battery Firmware Version : 3009

    thank you the suggestion, I will

  • ispookie666
    ispookie666 Posts: 1,194 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    edited 19 March 2023 at 10:56PM
    You will notice that the Givenergy inverter is 5000VA (with a oeak of 7.5KWp) but your battery is what is causing the problem. It can only charge at a max of 60A which is at best 3600W. 
    The rest of the power will be going to your house and any surplus will go to the grid. 
    Also, givenergy inverters are not the quickest to respond to changing sun/cloud cover - more like dinosaurs! 

    “Don't raise your voice, improve your argument." - Desmond Tutu

    System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
    System 2 - 9.2 KWp + Enphase IQ7+ and IQ8AC (Feb 22 & Sep 24) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump
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