February 1, 20242 yr Hi guys, I have a question about inverter Charger source priority. My inverter is a Growatt SPF5000ES firm 068-01-1.04. I have also : - 1x Diesel 10Kva Generator connected to the inverter to the Grid input of the inverter. - 10x PV 400W - 4 Battery Pylontech US2000C. The system works fine, but my problem is that when I manually switch on my generator to charge my battery, due to some poor sunlight, the inverter does not charge the battery until I physically disconnect my PV input using the input breaker. Example, if the sun power is not sufficient and the generator is starting, the battery will not charge. The only way to charge using the generator is to manually switch off my pv input to the inverter, and now it work ! Growatt manual says that : Quote Charger source priority: To configure charger source priority If this off grid solar inverter is working in Line, Standby or Fault mode, charger source can be programmed as below: - Solar first Solar energy will charge battery as first priority. - Utility will charge the battery only when solar energy is not available. - Solar and Utility Solar energy and utility will both charge battery. My actual configuration set is "Solar and Utility" , but unfortunately, the inverter doesn't care about the generator until the PV input is not cutted off. If some of you guys have any idea why.... Any help is appreciated. Tank for reading.
February 1, 20242 yr 5 hours ago, AlexSolar said: Hi guys, I have a question about inverter Charger source priority. My inverter is a Growatt SPF5000ES firm 068-01-1.04. I have also : - 1x Diesel 10Kva Generator connected to the inverter to the Grid input of the inverter. - 10x PV 400W - 4 Battery Pylontech US2000C. The system works fine, but my problem is that when I manually switch on my generator to charge my battery, due to some poor sunlight, the inverter does not charge the battery until I physically disconnect my PV input using the input breaker. Example, if the sun power is not sufficient and the generator is starting, the battery will not charge. The only way to charge using the generator is to manually switch off my pv input to the inverter, and now it work ! Growatt manual says that : My actual configuration set is "Solar and Utility" , but unfortunately, the inverter doesn't care about the generator until the PV input is not cutted off. If some of you guys have any idea why.... Any help is appreciated. Tank for reading. You need to set parameter 1 to utility and 14 to SNU, it will work with these settings. no need to disconnect the PV breakers. Another thing to consider is to make sure of is parameter 11, charging AC current does not exceed what your gen can supply thus lowering the gen frequency, growatt very sensitive to drops in frequency.
February 1, 20242 yr Any reason why you have your generator connected? Is there no grid available there?
February 21, 20242 yr Author Hi Guys, Sorry for my response delay due to some diseases On 2024/02/01 at 3:06 AM, Antonio de Sa said: You need to set parameter 1 to utility and 14 to SNU, it will work with these settings. no need to disconnect the PV breakers. Another thing to consider is to make sure of is parameter 11, charging AC current does not exceed what your gen can supply thus lowering the gen frequency, growatt very sensitive to drops in frequency. thank you for your help. Configured now my inverter has you tell me. Before that, program 1 was to SUB. I define program 11 to 70A. SPF 5000 ES :Default 30A, 0A~80A Settable. I set to 70A to avoid to be close that the charging limitation of my inverter. On 2024/02/01 at 6:47 AM, Zweli said: Any reason why you have your generator connected? Is there no grid available there? Yes, i'm totally autonomous. Leaving outside of city, in middle of forest. No grid, and water connexion. I'm using Water drilling, and PV solution, and Starlink ! Thank for you help guys. I'll keep you informed
February 24, 20242 yr Author Done guys ! Thank you for the inverter configuration. Now i can charge my battery while Pv are connected and sun is poor. Attached you can see an Example
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.