MunichTom Posted September 14 Share Posted September 14 Hello community... I am from Germany and run a Deye Sun-12K-SG04LP3-EU inverter with 10Kw solar panels attached and also 4*Deye R"-M6.1 batteries. I also have SolarAssistant and this connected to Homeassistant using MQTT so have sensors and switches in Homeassistant. On top I have hourly based electricy price plan (using the provider Tibber) which is integrated into Homeassistant as well. During summer times my PV poweder charges my batteries pretty well and I run all load from those/PV March-September. The additional PV power I sell to the grid. Currently all works flawlessly but with winter approaching my PV load cant' handle charge, or even load, anymore and I want to use reasonable Tibber electricity prices to charge my batteries fully up and use the battery power for the rest of the day. My challenge is on how to enable grid charge at all with settings on battery and work mode to be done properly!? I have set working mode "time of use" enabled since starting with the inverter and all worked well now I had to set working mode (SoC is at 20%) to off and Grid Charge to ON and battery started to charge (which is fine) However I want to use the battery and I saw a Youtube video telling me "time of use" in work mode as to be enabled at all to use the battery power!? What I ask for my situation should be straight forward but I am struggling a bit and wondering what to set so I can later on create a HomeAssistant automation to enable/disable Grid charge when Tibber electricity prices are below 50% daily average. I attch my setting which currently work to charge from grid, having said "time of use" is disabled and I think that's wrong!? As you can see also the weather is bad and battery stopped serving load last evening and switched to grid completely (which is fine) at 20% SoC. Now it's back at 23% after enabling grid charge and disablingn time of use... Quote Link to comment Share on other sites More sharing options...
GreenFields Posted September 14 Share Posted September 14 1 hour ago, MunichTom said: Hello community... I am from Germany and run a Deye Sun-12K-SG04LP3-EU inverter with 10Kw solar panels attached and also 4*Deye R"-M6.1 batteries. I also have SolarAssistant and this connected to Homeassistant using MQTT so have sensors and switches in Homeassistant. On top I have hourly based electricy price plan (using the provider Tibber) which is integrated into Homeassistant as well. During summer times my PV poweder charges my batteries pretty well and I run all load from those/PV March-September. The additional PV power I sell to the grid. Currently all works flawlessly but with winter approaching my PV load cant' handle charge, or even load, anymore and I want to use reasonable Tibber electricity prices to charge my batteries fully up and use the battery power for the rest of the day. My challenge is on how to enable grid charge at all with settings on battery and work mode to be done properly!? I have set working mode "time of use" enabled since starting with the inverter and all worked well now I had to set working mode (SoC is at 20%) to off and Grid Charge to ON and battery started to charge (which is fine) However I want to use the battery and I saw a Youtube video telling me "time of use" in work mode as to be enabled at all to use the battery power!? What I ask for my situation should be straight forward but I am struggling a bit and wondering what to set so I can later on create a HomeAssistant automation to enable/disable Grid charge when Tibber electricity prices are below 50% daily average. I attch my setting which currently work to charge from grid, having said "time of use" is disabled and I think that's wrong!? As you can see also the weather is bad and battery stopped serving load last evening and switched to grid completely (which is fine) at 20% SoC. Now it's back at 23% after enabling grid charge and disablingn time of use... Which is the time slot in which you want to charge the batteries from the grid? Let's say the Tibber price is cheap between 01:00 and 05:00, then you need to tick the grid charge box against that time slot. Wichtig, you also need to set the SOC - State-of-Charge - in that time slot to a higher value like 100% if you want it to be charged full from grid. Then for all the other times slots, the solar and battery will be used first, until the battery is drained down to 20%. Quote Link to comment Share on other sites More sharing options...
MunichTom Posted September 14 Author Share Posted September 14 2 hours ago, GreenFields said: Which is the time slot in which you want to charge the batteries from the grid? Let's say the Tibber price is cheap between 01:00 and 05:00, then you need to tick the grid charge box against that time slot. Wichtig, you also need to set the SOC - State-of-Charge - in that time slot to a higher value like 100% if you want it to be charged full from grid. Then for all the other times slots, the solar and battery will be used first, until the battery is drained down to 20%. Hard to say the timeslot because this one Changes on a daily base and therefore there is no general way to setup timeslots on the inverter. What I can do is to setup a timeslot between 11:00a.m.-05:00p.m. and activate the grid charge box and set SoC to 100% when tibber price was triggered. Wondering if just disabling ToU tables and activating grid charge would be sufficient as well as it seems to have manually my battery loaded today. Quote Link to comment Share on other sites More sharing options...
MunichTom Posted September 14 Author Share Posted September 14 (edited) UPDATE... MY BAD SORRY: Found it in the SolarAssistant MQTT Settings/Logs that there is a "Allow settings changes" option which was disabled... Another interesing finding: I can change/edit any settings from SolarAssistant UI but can't change anything from within Homeassistant as changes are immediately reverted and not applied to SolarAssistant and then the Deye inverter!? I tried various MQTT settings provided by SolarAssistant integration in Homeassistant, like "Use timer" but none get applied!? Edited September 14 by MunichTom Quote Link to comment Share on other sites More sharing options...
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