May 2, 20233 yr On 2023/04/29 at 11:25 AM, Chris_S said: Slava Ukraini Glory to the Heroes, Occupants will face it all! have a newbie question about future installing my PV I have 2 inverters connected to the house with batteries now. my CT coils get the totall power data my household consumes My garage and guest house are off the inverter. So i have CT load for example 2kwt/hr, and my house load 1kwt/hr. Will i be able to feed my garage with excess sun production? i suppose just to tick the zero export to grid and leave zero export to CT unticked. Will it work like that? Btw here is my setup, its still messy and unfinished but the overall work is seen (batteries are 2x12kwt Li Nmc) Edited May 2, 20233 yr by Denveronly
May 2, 20233 yr Yes, you can send power to the garage, if the CT coil is installed correctly at the utility meter, and by selecting 'Zero Export to CT.'
May 3, 20233 yr 11 hours ago, Denveronly said: Glory to the Heroes, Occupants will face it all! have a newbie question about future installing my PV I have 2 inverters connected to the house with batteries now. my CT coils get the totall power data my household consumes My garage and guest house are off the inverter. So i have CT load for example 2kwt/hr, and my house load 1kwt/hr. Will i be able to feed my garage with excess sun production? i suppose just to tick the zero export to grid and leave zero export to CT unticked. Will it work like that? Btw here is my setup, its still messy and unfinished but the overall work is seen (batteries are 2x12kwt Li Nmc) Yes you can feed excess solar to your non essentials. The wording in the Deye menu is slightly different to sunsynk. So yes. Export to CT but not to grid
May 7, 20233 yr As i said, im currently running 2 Sunsynk 6k 1ph inverters Inverter_1 connected to phase A Inverter_1 connected to phase B+C(i dont have 3ph loads, so thats okay for me now) have battery bank with busbar connected with 2 BMS(there is no way i can connect 2 BMS to the inverter_1 it is DIY so that the only way it can be) BMS_1 goes to Inverter_1 BMS_2 goes to Inverter_2 Inverter_1 is charging the battery bank using night grid and PV If BMS_1 reports error, inverter_1 accepts error and stop. (but inverter_2 is still working) If BMS_2 reports error inverter_2 accepts error and stop. (but inverter_1 is still working) So the question is, if i make Inverter_1 Master at phase A Inverter_2 Master at phase B connect them using cable, will they communicate about the error codes BMS send to them and resend to other inverter to stop? Edited May 7, 20233 yr by Denveronly
June 17, 20233 yr Please assist me: I have two Sunsynk 5.5kW inverters with 16 x JA Solar JAM72S30-560/GR Panel 555kW panels and 3 x Huble 5kW AM5 batteries. Eight panels per inverter. I am staying in Randburg, Johannesburg. I would like to know the following: Can I split the eight panels per inverter into two strings of 4 each to deal with shading? Can I add more panels?
June 17, 20233 yr 1 hour ago, Philip Booyens said: Please assist me: I have two Sunsynk 5.5kW inverters with 16 x JA Solar JAM72S30-560/GR Panel 555kW panels and 3 x Huble 5kW AM5 batteries. Eight panels per inverter. I am staying in Randburg, Johannesburg. I would like to know the following: Can I split the eight panels per inverter into two strings of 4 each to deal with shading? Can I add more panels? Yes you can split them and you can add panels. I prefer to have 5 in series per string instead of 4. This is estimated as I have not looked at the specs of the panels.
June 18, 20233 yr Thank you, Scorp007, for your reply. I would like to know the following: Can I safely add more panels, if so, how many? Irrespective of adding more panels, can I split the current 8 panels into two arrays of four each, with each array of four connecting to one of the MPPTs of the inverter? Herewith are the specs (inverter, panels and battery) and a photo of the installation: Sunsynk 5kW Inverter SUNSYNK-5K-SG01LP1 Number of Inverters in parallel: 2 Max. PV Input Power: 6500 W MPPT charge controllers per inverter: 2 PV Input Voltage (Vd.c - volts of direct current): 370 V (125Vd.c~500Vd.c) MPPT Input Range: 150 V (~ 425Vd.c) PV Input Current: 13 A (x 2) Maximum PV Input Current (Isc): 17 A (x 2) JA Solar JAM72S30-560/GR Panel Number of panels: 16 (see photos) Number of arrays: 2 Number of panels per string: 8 (unsure which 8 are connected together) Parameters at STC (Standard Test Conditions) Standard Test Conditions: no clouds, high 1000W/m² irradiance Rated Maximum Power (Pmax): 555 V Open Circuit Voltage (Voc): 50.02 V Maximum Power Voltage (Vmp): 42.11 V Short Circuit Current (Isc): 14.07 A Maximum Power Current (Imp): 13.18 A Module Efficiency: 21.5% Parameters at NOCT (Normal Operating Cell Temperature) Real-world conditions, some clouds, lower 800 W/m² irradiance Rated Maximum Power (Pmax): 420 V Open Circuit Voltage (Voc): 46.85 V Maximum Power Voltage (Vmp): 39.66 V Short Circuit Current (Isc): 11.21 A Maximum Power Current (Imp): 10.59 A Hubble AM-5 Number of batteries: 3 Energy: 5120wh Capacity: 100Ah Maximum Charge Current: 100A Maximum Discharge Current: 100A Maximum Charge Voltage: 55.2V Cutoff Voltage: 47V
June 18, 20233 yr 2 hours ago, Philip Booyens said: Thank you, Scorp007, for your reply. I would like to know the following: Can I safely add more panels, if so, how many? Irrespective of adding more panels, can I split the current 8 panels into two arrays of four each, with each array of four connecting to one of the MPPTs of the inverter? Herewith are the specs (inverter, panels and battery) and a photo of the installation: Sunsynk 5kW Inverter SUNSYNK-5K-SG01LP1 Number of Inverters in parallel: 2 Max. PV Input Power: 6500 W MPPT charge controllers per inverter: 2 PV Input Voltage (Vd.c - volts of direct current): 370 V (125Vd.c~500Vd.c) MPPT Input Range: 150 V (~ 425Vd.c) PV Input Current: 13 A (x 2) Maximum PV Input Current (Isc): 17 A (x 2) JA Solar JAM72S30-560/GR Panel Number of panels: 16 (see photos) Number of arrays: 2 Number of panels per string: 8 (unsure which 8 are connected together) Parameters at STC (Standard Test Conditions) Standard Test Conditions: no clouds, high 1000W/m² irradiance Rated Maximum Power (Pmax): 555 V Open Circuit Voltage (Voc): 50.02 V Maximum Power Voltage (Vmp): 42.11 V Short Circuit Current (Isc): 14.07 A Maximum Power Current (Imp): 13.18 A Module Efficiency: 21.5% Parameters at NOCT (Normal Operating Cell Temperature) Real-world conditions, some clouds, lower 800 W/m² irradiance Rated Maximum Power (Pmax): 420 V Open Circuit Voltage (Voc): 46.85 V Maximum Power Voltage (Vmp): 39.66 V Short Circuit Current (Isc): 11.21 A Maximum Power Current (Imp): 10.59 A Hubble AM-5 Number of batteries: 3 Energy: 5120wh Capacity: 100Ah Maximum Charge Current: 100A Maximum Discharge Current: 100A Maximum Charge Voltage: 55.2V Cutoff Voltage: 47V In order to help just the following. 1. Are all panels facing the same direction. It appears to be the case. 2. Is there space for a panel either side of 15 and 16. 3. Is there space for 1 panel to the right of 14. 4. The shade is it in the morning or afternoon. Edited June 18, 20233 yr by Scorp007
June 18, 20233 yr Thanks again Scorp007 for your response! I have responded in bold below: 1. Are all panels facing the same direction. It appears to be the case. Yes, that is correct 2. Is there space for a panel either side of 15 and 16. Yes 3. Is there space for 1 panel to the right of 14. Yes 4. The shade is it in the morning or afternoon. Morning I have also researched using this website and created the attached spreadsheet. If I have done this correctly and understand the theory, I'm already at my maximum panel amount, but I should be OK to split the 8-panel array into two sets of 4 each. I would value your input on the attached spreadsheet. How Many Solar Panels Can I String Into My Inverter_.xlsx
June 18, 20233 yr 50 minutes ago, Philip Booyens said: Thanks again Scorp007 for your response! I have responded in bold below: 1. Are all panels facing the same direction. It appears to be the case. Yes, that is correct 2. Is there space for a panel either side of 15 and 16. Yes 3. Is there space for 1 panel to the right of 14. Yes 4. The shade is it in the morning or afternoon. Morning I have also researched using this website and created the attached spreadsheet. If I have done this correctly and understand the theory, I'm already at my maximum panel amount, but I should be OK to split the 8-panel array into two sets of 4 each. I would value your input on the attached spreadsheet. How Many Solar Panels Can I String Into My Inverter_.xlsx 458.89 kB · 0 downloads Thanks for all the detail. You are very far off the max the way I see it. You can go up to 12.8kw in panels. There are 4 x MPPTs to connect panels to and 8 is the maximum. If we reduce this to 7 then one can get to 28 panels. But then the but leaves us with 12.8kw as the maximum so we can go to 23 panels. The last step will be to see what is the best fit to reduce a whole string being affected by shade. I will look into this in the morning and give my 2c..
June 19, 20233 yr 10 hours ago, Scorp007 said: Thanks for all the detail. You are very far off the max the way I see it. You can go up to 12.8kw in panels. There are 4 x MPPTs to connect panels to and 8 is the maximum. If we reduce this to 7 then one can get to 28 panels. But then the but leaves us with 12.8kw as the maximum so we can go to 23 panels. The last step will be to see what is the best fit to reduce a whole string being affected by shade. I will look into this in the morning and give my 2c.. Edit: In order to reduce the effect of shading would mean quite a bit of re-stringing but here goes. M1 and 2 are MPPTs on inverter 1. M3 and M4 on inverter 2. Option 1. Early morning one string of 4 will have low production but not affecting the other 4. M1-1 2 7 8 M2-3 4 5 6 M3-9 10 11 15 M4-12 13 14 16. Option 2. This entails moving 1, 7 and 8. This use 15 panels so one can see if any of the 4 panel strings can accept the 16th panel. 1 and 7 either side of 15 and 16. Also 8 to the right of 14. Thus we have M1-3 4 5 6 9 10 11 M2-1 7 15 16 M3-12 13 14 8 Let's see what other members suggest.
September 9, 20232 yr Maybe one of you can help me? I have a 5Kw Sunsynk inverter which has been working as a backup system since the start of the year. Today I finished installing 5 x 550W solar panels. Problem is I'm getting 0W at the inverter. I read 244V on both sides of the fuse box before connecting to the inverter and the MPPT switch is on but nothing. What am I missing?
September 9, 20232 yr Author Maybe one of you can help me? I have a 5Kw Sunsynk inverter which has been working as a backup system since the start of the year. Today I finished installing 5 x 550W solar panels. Problem is I'm getting 0W at the inverter. I read 244V on both sides of the fuse box before connecting to the inverter and the MPPT switch is on but nothing. What am I missing? Check for reverse polarity. Also measure the voltage at the MC4 connectors right before connecting to the inverter.
September 10, 20232 yr Maybe one of you can help me? I have a 5Kw Sunsynk inverter which has been working as a backup system since the start of the year. Today I finished installing 5 x 550W solar panels. Problem is I'm getting 0W at the inverter. I read 244V on both sides of the fuse box before connecting to the inverter and the MPPT switch is on but nothing. What am I missing? On the status page on the inverter's screen, what is the Voltage for either Solar1 or Solar2 power inputs?
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