Good Day All

This is my first time posting but I have been lurking around for quite sometime. I want to ask for some assistance, my parents have a Luxpower SNA5000 inverter with a Volta Stage 1 installed. Currently the inverter is setup so that solar powers the home during the day and then eskom provides power during the evening with the battery only being used when eskom and the solar are unable to. Is it possible to set the inverter to only use eskom as a last resort? Ideally the house would use solar during the day and the battery at night should the battery decrease beyond 30% then eskom must be used to charge the battery back to 40% this way there is at least a buffer should there be a power outage and eskom is not available. I will upload a pdf of the settings used on the inverter. Any advice would greatly be appreciated.Remote_Set_3053531275-1.pdfRemote_Set_3053531275-1.pdf 

2 hours ago, Rossi91 said:

Good Day All

This is my first time posting but I have been lurking around for quite sometime. I want to ask for some assistance, my parents have a Luxpower SNA5000 inverter with a Volta Stage 1 installed. Currently the inverter is setup so that solar powers the home during the day and then eskom provides power during the evening with the battery only being used when eskom and the solar are unable to. Is it possible to set the inverter to only use eskom as a last resort? Ideally the house would use solar during the day and the battery at night should the battery decrease beyond 30% then eskom must be used to charge the battery back to 40% this way there is at least a buffer should there be a power outage and eskom is not available. I will upload a pdf of the settings used on the inverter. Any advice would greatly be appreciated.Remote_Set_3053531275-1.pdfRemote_Set_3053531275-1.pdf

Under discharge setting on grid EOD soc % it is set to 90% so it will use only 10% battery into the evening you can change that setting to your desired % so the inverter uses more  battery into the evening.

You don't say how many lithium installed as well as solar but I assume there's only one lithium so I would charge under max charge current from 90amps to around 40amps as 90amps will just reduce the battery life . 

Remember it's not worth to using battery into the evening just to charge it up using Eskom in case of power failure as the inverter consumes more Eskom kw th charge  than what you save so if you fear power failure then best is set it to use only 20 to 30% battery into the evening leaving enough for power failure and leaving charging for the day from solar .

Luxpower charging from Eskom is on issue and I have never got luxpower inverter to charge from Eskom accordingly to the set % only way to get it to charge is to hit the start quick charge on the apps main screen . 

Edited February 12, 20251 yr by GMAC

30 minutes ago, GMAC said:

Under discharge setting on grid EOD soc % it is set to 90% so it will use only 10% battery into the evening you can change that setting to your desired % so the inverter uses more  battery into the evening.

You don't say how many lithium installed as well as solar but I assume there's only one lithium so I would charge under max charge current from 90amps to around 40amps as 90amps will just reduce the battery life . 

Remember it's not worth to using battery into the evening just to charge it up using Eskom in case of power failure as the inverter consumes more Eskom kw th charge  than what you save so if you fear power failure then best is set it to use only 20 to 30% battery into the evening leaving enough for power failure and leaving charging for the day from solar .

Luxpower charging from Eskom is on issue and I have never got luxpower inverter to charge from Eskom accordingly to the set % only way to get it to charge is to hit the start quick charge on the apps main screen . 

Hi GMAC

Thank you for the reply. Will give the EOD soc% a try and see if it works. They currently have only the one battery. The AC Charger is set to 30A so I will leave that as is. Recently they had a breaker failure on the AC input side, which forced them to use the battery and solar only. I saw that with careful consumption they can get through the night with about 30% remaining in the battery. So the idea is that only when the battery falls below 30% the inverter must then use eskom to recharge the battery but only by 10% till the next morning. After which the solar must then recharge the battery.

Would you recommend that I disable the PV&AC take load jointly option? As I'm reading through the SMA 5000 manual but it's exceedingly ching-lish. And its not clear as to what this function does.

 

28 minutes ago, Rossi91 said:

Hi GMAC

Thank you for the reply. Will give the EOD soc% a try and see if it works. They currently have only the one battery. The AC Charger is set to 30A so I will leave that as is. Recently they had a breaker failure on the AC input side, which forced them to use the battery and solar only. I saw that with careful consumption they can get through the night with about 30% remaining in the battery. So the idea is that only when the battery falls below 30% the inverter must then use eskom to recharge the battery but only by 10% till the next morning. After which the solar must then recharge the battery.

Would you recommend that I disable the PV&AC take load jointly option? As I'm reading through the SMA 5000 manual but it's exceedingly ching-lish. And its not clear as to what this function does.

 

No do not disable pc&AC leave enabled. Okay yes if 30% is your target then setting 30% EOD will work but charging up another 10% ofter it turns to Eskom is an issue with these luxpower inverters just can't seem to get them to charge up from AC  to an % set they just don't want to as there must be a bug in the software . I monitor a  few luxpower and all the same issue with them,  all when it comes to charge to a set % . 

There are post on power forum and Google over this luxpower charging from AC issues . 

Why do you want to charge the battery with grid power? Can't you set it up that you run the battery down to say 30% soc and then the grid comes on and supply the baseload while the battery stay at 30%.

The sun comes up and then take over the baseload from the grid.

Any solar more than baseload, gets used to charge the battery. This is how my Sunsynk inverter works.