Pho3niX90

That domain is just a month old, so unless you want to take a leap of faith, I would stay away. If you are close to the address, you can visit them to confirm legitimacy

I see, might just be my understanding. But I do believe the AC and GEN port does indeed support frequency shifting already. V3.2 of the documentation makes mention of this as well. But, it's good to see Solis is making an effort to rapidly improve on the product. Makes me feel better about going Solis vs Sunsynk Will be following closely.

It means nothing is connected to MPPT2, the panels were connected as a single string to MPPT1. This leaves expansion at a later date.

easiest is to just replace the batteries, chances are the batteries supplied were B grade. There are some locals that sell prismatic cells. Do not buy AGM, as they will only last around a year, maybe a year and a halve if you are lucky. One other thing you can try first, is to balance the batteries, as I am almost certain there is no balancer for the 4 cells.

What does a single 8kwh battery cost? Price diff between first and last quote 76K, and diff is a 8kwh battery and 6 panels. The Sigenergy is a really cool system from what I have seen, but the price difference might be the deal breaker. The thing that you will need most as you continue the journey, is batteries! They are typically the most expensive, and it seems your only choice going forward is to stick to the brand. Where, with the Deye, you had endless options of battery brands. The panels should net you around 850kwh per month. Hopefully this figure is close to your current monthly consumption, and if so, you will probably need tripple your battery capacity.

This is pretty intresting. When we moved into our house, it already had both a gas geyser and solar geyser iinstalled.We have never used the gas geyser, and have only used the solar one. Also, we have the option of dumping excess energy into its built in 2.2kw element. Main reason why we haven't even tried the gas geyser, is due to the labour involved getting the tanks filled. Whats your experience on filling those tanks? And what is the pricing?

Out of curiosity, what was the price on the sigenergy system? Have seen a couple of videos of them the last weeks, they seem impressive

MyBroadband Article

Sure, but thats from their own official documentation

The features you speak off for the solis, is already available via modbus. Home assistant and nodered would make it easier. As the previous comment mentioned, I also use sonoff switches on both the geyser, when bats are full, and generation is in excess, it starts them until there is no more excess.

The seplos will send the charging requirements to the inverter via the cable, and even if that fails, it should disable the integrated shunt. Mb31 is a new cell, so balancing shouldn't even be required. If voltages are close, just charge it with the inverter.

Without voltage and amp rating of the panel, and brand of inverter, it's impossible to say. The inverter dictates the max voltage, and amp input. When all else is the same, go for 455 since it gives around 150w more. Edit: seems you are using kodak og, so stick withing these params, since the panel specs are unknown to us. MPPT Range @ Operating Voltage : 120 VDC ~ 380 VDC Maximum PV Array Open Circuit Voltage : 500 VDC MPPT Maximum Input Current : 18 A Max IC : 18 A Max lsc : 22 A

You mentioned that you have dipswitches to 1, but I think you are running the battery as s single unit? Should it not be set to 0 ? 1 is to state that it is mater of a pack. Not sure if you have tried this in the last couples of months. Dip switches:

I can fully understand this. You mentioned you tried the JK software, and Seplos software, have you tried the Pace software?

Why do you not get a new BMS, fit it and call it a day? Definitely a hard pill to swallow, but if they cannot reply with support, you know you don't have a warranty they will honor. At least you will have support from the seller on the BMS

Correction. Had to do some searches. Eskom generation total = 44000 Mw: Coal-Fired Stations: approximately 37,698 MW. Nuclear Power: 1,860 MW Renewable and Hydroelectric: Drakensberg Pumped Storage Scheme (1,000 MW) and the Ingula Pumped Storage Scheme (1,332 MW). Private solar (October 2024) = 8970 Mw: I would have thought, that in instances of cloud coverage etc, the instant power fed back into the grid would increase the Hz. But my understanding of this is very limited

Last I read, private solar makes is around 45Mw, if 10% feeds back to eskom, wouldn't that push the frequency up? Even though it's sending at the same frequency, there is more generation than demand at this point?

That was some really good information. Sent me down a rabbit whole of looking up videos of what each does. In short it seems pushing to the grid for me is out of the question, since it raises the voltage too much, will just have the batteries do the heavy lifting.

Best bet would be to get in contact with suppliers on either Alibaba or Aliexpress, you can first search for the parts there, and if you do not find the parts, reach out to the closest supplier. When that fails, try contact the manufacturers

This is particularly the reason I started looking at the frequency and voltage as well. My voltage reached 253v before inverter disconnected, blew some older equipments fuses that were rated at 253 (perhaps already degraded). After which, the inverter started complaining about grid over frequency.

Is this much deviation as per the graph, normal in such a short timespan? Asking out of curiosity, or do you think that people exporting to the grid is playing a role?

Yeah it's interesting. The concern is mostly the min/max values, as it makes inverters disconnect. It does seem as though the grid is barely holding on, and the solar exporting is what is keeping it up.

I've noticed this week that the grid frequency has been fluctuating between 49.6 and 50.26 Hz. Has anyone else observed the same in the Pretoria area? This is just a short period of today.

From this, I would get a second opinion, in regards to the amp repair. Then also, there is this? Sparkies will probably be able to answer the question better when it comes to voltages https://powerforum.co.za/topic/1379-what-voltage-are-you-running-220v-230v-240v/

I might be missing something vital, since I am not too familiar with 3P. But what would a different brand accomplish, if it's related to the grid? From my understanding, it does what it needs to do?