Fazil

Not my installation but another from a customer who was referred. Axpert inverter with lithium batteries. Eskom disconnects by itself occassionally whilst solar is still available. Inverter shows eskom voltage as high as 255V. Single phase installation. Any thoughts? Fazil

search Riaan Gerber not sure if his on the forum but facebook he is there. [email protected]

Hi Guys I am very confident somebody here will identify what i am missing. A client has the following system: 3x10kw 3p Infinisolar in parallel. 1x 30kwh Freedom Won battery 20kwp solar. 63A mains breakers on load and supply side. Priorities set as : pv, battery, grid During the day system runs with no issues. But at night/early morning (around 5am), the batteries have Error 13 (low battery at 49 which is the cut of point set and return to grid). But when switching from battery to grid, it switches off the power supply to the house. We observed via a video (too large to post) that there was around 98A discharge demand on the inverters whilst the battery is at 50V. Client switches manually to Grid via 100A manual change over switch and house gets power. Where could i be missing it? Thanks Fazil

Why the extra for the dongle? Buy it from Off grid tech (Anton de Swart). We have done few SunSynk/Dye and they work great. Installing another 4xSunSynk (3x8kw and 1x5kw) in August. My personal brand preference now.

HVM not on local market as yet. Vmax still at 145V as far as I am aware unless somebody managed to bring these in.

why Art? just asking? They are a manufacturing facility so stock run out is strange unless they have some massive projects to deliver.

similar experience on some omnipower 240Ah I bought from them less than 2 years ago. Batteries seldom cycle and discharge below 49V. When I reported the batteries are swollen prematurely, I was told I needed a bms and they don't have proof its the batteries. So cut that loss and moved on. But I will personally never buy from them.

for R50k a backup system is your best investment. add panels as some funds are prioritised and expand until offgrid. but backup for no power situations is in my opinion best bang for buck.

sorry let me clarify I have used both brands but NOT together. I wouldn't try it as we are not a research facility and don't believe in experimenting with client money.

Hi @Tony Swash Price difference on like for like 2.4kw or 3.5kw varies under 10% per unit. I have installations running using both and no issues to date (fingers crossed)

the Infini has the option but its very unstable as I have seen. Seems ICC is the solution and more accurate that the watchpower system.

Setting 16 on 10kw 3p? Please can you show me the manual to do this? I am always about learning.

yes it can. Its a hybrid inverter that can start using battery or solar or grid as far as I understand. check settings guide.

have you been for training for solar? if not, I strongly recommend getting a qualified and skilled person to do the work.

According to spec sheet, Dyness settings are: Float = 52V Cut off = 46v Also confirmed by local suppliers of the batteries.

take a picture of your combiner box and which fuse is blowing so the forum can assist you?

The manual are almost identical but you may be correct. The number configuration may differ but settings don't. Just use the guide.

Mecer is supported by Mustek in Midrand. For your service provider to not hold their end of the stick isn't very warranted. But, I can assume they have been to at least assess the issue.

check settings 1=sbu 16= cso

What battery brand is it? If Dyness, then get the BMS upgraded else Error 08 will keep appearing. PS: You say hybrid so assuming its NOT Growatt or Mecer brands right? More detail please?

Sparkie on a 5kwp system will probably charge about R5k with single phase coc which still makes the cost/watt around R32 incl VAT which is on the lower scale of the market distribution curve (using my installed empirical data to support my hypothesis)

I am sure you just gave the Hilux guys an idea lol But the Solar MD team seem to be doing some impressive stuff with the Axpert.

Setting 1 = SBU Setting 5 = AGM (if using gel batteries). USE is for lithiums (I could be wrong here) Settings 12,13, 26 and 29 must be input as per battery recommendations. Edit: Setting 16 must be CSO (some use OSO). if this is set as SNU then you will see the possible events you have been observing.

thats a good price. But I am curious why post such on a public platform instead of requesting alternate quotes to compare in private? what is the intention as there are a handful of Solar MD installers? Just curious that's all.

is this a prototype or a shelf product?