JayN

Hi Chris. I have the same unit. Is the 33 degrees air temp or the temp on the inverter? I have the same unit ...

On a warm day, like today in JHB, my Sunsynk gets to about 56 degrees with the fans going crazy during peak generation, 4 kW and a draw of about 6 kW ... Extra 2 from the battery. My unit is in the garage, lots of space around it and I leave the garage door slightly open. Garage is warm ... I think a cupboard would not work personally unless cooling is great.

Hi ... would be happy to do that. Your summertime consumption is only slightly higher than my consumption. My key issue is that I have excess energy during the day which I am able to dump into the geysers - I have these on wifi linked timers. Thus far I've set these so that I consume majority of the energy produced. Geysers all have hot water for the evening showers.

Correct ... I mean demand is 9kWh pd from grid and consumption is 30 kWh pd.

The 12kw 3 Phase Sunsynk can handle up to 6kw per phase, with a total of 12kw across all three phases. My loads are not all balanced. It's not too bad though. On the Phase 1, I have a few plugs and lights and pool pump - max draw can be 2-3 kw. On Phase 2, I have lights, oven and the big geyser - max draw about 6kw. I have the geyser on a timer and make sure the oven and geyser are not on at the same time. We hardly use the oven. on Phase 3, I have plugs, and the small geyser - max draw can be 5-6kw. At any one point in time, mostly Phase 3 is in use because of plugs (fridge freezer). At night, Phase 2 kicks in because of lights. Phase 1 runs during the day. Loads are not all balanced all the time because the geysers are the massive draw. The manual on the Sunsynk (if I recall correctly) says it can handle 100% unbalanced load up to 6 kw per phase subject to a max. of 12kw across the three phases.

Hi ... I plan to install three packs and another bank of 8 x 540w panels. That will more or less make me independent of the grid, except on a very cloudy day. My daily demand from the grid is 9 kw per day, and I have a total household consumption of 30 kw per day. The 9 kw per day is max, made up of the demand from around 11 pm at night to around 8 am in the morning. It includes the two geysers which come on for the morning run with the use of a timer. Two additional AM2s and additional PV panels to fill them will see me through about 90% of the time. I have stopped charging the battery from the grid at night, and I hold about 30% of charge which can see me through 2 hours of light use going to 20% (normal min is 25%) if the grid goes off at night. I will upgrade over time. Battery fault: This has now gone.

Hi .. My electricity feed is directly from Eskom (Johannesburg). I am on the Homepower 2 package, 3 phase feed for a domestic dwelling. Is there is a time of use charge (higher peak period tariffs)? I'm trying to see if it is worth charging the batteries during an off peak period especially for the morning peak. There was mention of this some time back and I'm not sure if it is implemented. Eskom is not clear if it is applicable on the Homepower packages.

So, I bit the bullet and had the Synsunk 12 kW 3 Phase system installed. I put in the following: Sunsynk 12kw 3 Phase inverter 1 x Hubble AM2 8 x 540w JA Solar Panels I connected all three phases of the board to the inverter, i.e. everything on the UPS side. I've set the unit so that: I'm off grid power from around 9.00 am to around 7.00 pm every day (some days a bit longer) I preserve a nominal battery charge from 07.00 pm to 11.00 pm in case the power goes out - if I don't do that I can go until 08.00 pm being off grid and deplete the battery to 25%. I charge the batter to around 75% (from 50%) which sees me through to 04.00 am At 04.30 pm the geysers kick in and its all on grid (geyser is on for about an hour) Second geyser kicks in 08.00 am to 08.30 am all on grid Really good results so far. The loads are managed via smart timers. Still getting the timings right to use everything we produce and take care of the low production days as well. During the day I have to dump excess power into the geysers for limited period of time. Pool pump is on from 10.00 am to 04.00 pm - all from solar. I do get a battery comm fault every now and then, especially when a geyser kicks in and the battery is at 25% already. Fault is only at this time, clears and carries on. Essentially, the morning and evening geysers, and the power requirements between 07.00 pm and 11.00 pm and the battery charge at 11.00 pm are from the grid. My on grid consumption has dropped by 60-65% on average. Next upgrade would be 1 x Hubble AM2 and 8 x 540 w panels. That is still not enough for the morning and afternoon peak. Apart from the random BMS battery fault, everything is working well.

All good suggestions ... 900kwh/month is normal. I have two geysers (on timers) and a pool pump. These three appliances alone consume 500kwh/month. I am going to go with the 12kw 3 Phase Sunsynk, a hubble AM2 and 8 x 540w panels to start. I will add on from there ... 1 or 2 more batteries and up to 8 x additional panels. This will not meet my full need at the moment, but it will reduce my bill for now. For loadsheeping, I will have to be smart about it and make sure the geysers are off during load shedding. That will last us the 2-3 hours of load shedding. With more batteries, I don't have to carefully manage the system.

Hi .. anyone with experience on the Sunsynk or Deye 12kw 3 Phase inverter? I have a question: The inverter is rated at 6kw per phase, but up to a max of 12 kw across all three phases. If the feed from the PV is low, and the battery has discharged to 15% (DOD setting at 85%), does the current just automatically pass through the inverter to meet the load? The inverter suggests a 32A breaker in the Grid input to the inverter and a 80A breaker on the output to load (forget about on grid loads - assume that everything is connected). Does this mean that the 32A breaker will trip, if the power draw (when the battery is discharged and the PV is not generating) is above around 7kw? Is there anyone that I can I have conversation with about this inverter, please message me and it would be great to just talk? Thanks in advance.

I am going with the following set-up: Sunsynk 12kw 3 Phase inverter (max discharge 240A) 2 x Hubble AM2 batteries in series Should the breaker and the fuse should be sized for 300A (1.25 x 240A) - the inverter may be able to pull 200A from the batteries for now as the Hubble's are limited to 100A each on discharge. However, if I added a third Hubble, the inverter will be be able to draw the full 240A. By this logic should the breakers and fuses on the batteries be rated at 300A? Any recommendations on breakers and fuses for this application?

Hi ... thanks. Are you suggesting that the light loads (back up loads) be placed on the inverter / battery for now (with grid supplementing) and that the larger loads (home load) be connected directly to grid? If I connected the whole house (this is what I mean as whole house) as the back-up load and battery could not handle the load, surely it will switch to grid power to take over? Is this understanding wrong? ... Ignore a power failure fow now. If there is a power failure and the battery has insufficient charge, I understand that the system would go down. In this case, would it trip, or just shut down?

Hi ... I will have to check up on this. The inverter is a hybrid, so I imagine that the battery will provide some power (limited by the software of the inverter), supplemented by the grid. Thanks for the reply ...

Thanks "branderplank" I don't really want to make change in respect of the 3 phases. At most I have 2 geysers and an oven (each on separate phases). Stove is gas. Pool pump is on the oven phase. The rest are all lights and plugs - small stuff. Kettle and iron are the next major current intensive appliances. The inverter will do 6kW per phase independently (unbalanced load), subject to a max of 12kw across all phases. It is a hybrid inverter, and so I would assume that if the solar panels are insufficient and the battery is insufficient, then the grid will provide the required power. I am hoping this assumption is correct. I'm not looking to go off grid, just looking to reduce my reliance on Eskom for now and then as I grow the system (batteries and panels) that reliance will get less and less. I do not have pre-paid. I'm on the Eskom system ... Landis 3 Phase meter.

I want to install a starter system which I can build on with time. My home has a 3 phase supply (no idea why), as my power consumption is only around 900kWH per month. I am thinking of the following: 1. Installing the Sunsynk 12kW 3 Phase inverter. 2. Two strings of 4 solar panels each (500w+ panels). I will grow this to 8 solar panels per string in time. 3. One Pylontech 3000C 3.5KwH battery. I will add to this over time, up to 3 batteries. Whole house connected ... and anything that the system cannot provide will be met from the grid. Obviously as the system grows, reliance on the grid will reduce. Few questions: 1. Is it possible to put in the starter system? Inverter, 8 panels and 1 battery. 2. I am also looking for installers that are not looking to change my mind ... or wanting to change my home to a single phase etc. 3. Any suggestions from anyone?

Hi, I have a three phase supply. Phase 1 has: Plugs, Geyser 1 and Oven Phase 2 has: Lights, Geyser 2 and Pool Pump Phase 3 has: Lights, Plugs (a few) - generally light loads Can I put 1 x Growatt SPF5000ES on Phase 1, and 1 x Growatt SPF5000ES on Phase 2, and leave Phase 3 supplied from the grid? So essentially have two inverters on 2 of the 3 phases? Any help would be appreciated.