Frost

Thanks alot, will pm you

How do i get check and get my firmware updated, i have requested on the sunsynk whatsup no but still seems to be the same version? @leshenwould you be able to confirm my inverters max input also?

Should i monitor the Pv amps, i cant see that it is clipping some days it idle for few minutes at 18.9 then some days when the sun comes through the clouds it jumps to 19.5- 19.9A.

So everything is up and running now for about 2 weeks, seems to work great so far. after waiting for new stock the unit was also a 18.8A but i have seen the amps go to 19.9A how can i see if it is clipping ?

He is coming to do installation tomorrow, he waited for stock on the 22A inverter hopefully he gets one. What would be the max 455w panels I can add to this inverter and in what configuration? I now see that with the winter sun moving more to the north the neighbors tree will cast some shadow on my panels, and was thinking to add some panels on the western side but not sure what would my max be ?

Okay i will as soon as it arrives. If its not 22A it means i will loose on the production side when it clips?

He send me this on the ones he have available, so i really hope it is 22A per mppt

Okay i went for the 8kw with 22A mppt and 24 x 455 Mono = 10920W they are rated 10.84A so will be just in the limit on 2 strings. Not enough stock on the 410 or 415 pannels so best option thats in the range was the 455w. They will come install the brackets tomorrow then the rest of the stuff Friday and Saturday. Thanks for all the help.

Yes that's my plan to oversize think i will go the 8kw route, just need to balance my loads during the day.

So does this mean I have to look for panels with 9.9lmp or less to get the max out of the pv array, the higher rated panels will clip? Does this then also apply to the 8kw when using 2 strings per mppt, I see the max input 18Amp so its 9amp per string?

O okay so just a guideline then, if you generate more that 5.5 kw and your batteries are not full do the extra generation get wasted or does it still goes to the batteries? Do you also have the problem with the high pitched noise form your 5kw sunsynk?

Yes that's a valid point, so even the 2 x 5kw will be more than enough then.

Okay great thanks, i am leaning towards the two x 5kw installation my only concern war the high frequency noise that some users experienced. But seems that was sorted? I see the passthrough on 2 x 5kw is 70A where one 8kw is 90A am i correct by saying this? Hopefully in the next two weeks mine wil be up and running.

@Vassenif i have 2 x 5kw inverters can i use the 2 aux ports one for smartloads and another for generator or wont this work?

That's great news, share some final results. What are you running there that 3 x 30kw aren't enough? How are pv production with all 60 panels?

This looks like a proper setup, did you manage to finish it yet?

Still looks great, do you use some eskom power during the days that power production is lower? Say i do go for the 2 x 5kw inverters to future proof is there any disadvantages in a parallel hybrid system, do they still share the pv inlet and batteries ?

I have had two installers now that argue with me that it is not possible to supplement form the grid if you go over the max of the inverter, they say it switches over to bypass mode completely and only use grid power. They say It can do so for a few seconds for startup load but not for continuous use. Apparently it’s not good for the inverter to run at close to the max for long periods of time. Wow that power production is great ist 41kw average per day over 231 days, on complete cloudy and rainy days do you still produce power if so, how much of your daily average to you get?

That's also i great thnx, getting some quotes now for solar conversion just to help om the heating of the geysers.

Thanks Achmat, 1.Okay thanks so the 8kw might do the job for what my needs are? 2.If you say it pulls what it needs from the grid can this be continuous say the load stay high for more that a hour or whatever the case might be or is this only for a certain period of time? 3.Great so the average should be around 80% this is on pitch roof correct, if you are adding more should they be the same watt on the panels? 4.So all non-essentials should go on the smart load or aux port 45kWh per day I believe is good, it is close to what I use now but without the Ac in the new home that should add a bit.

Hi Paul , thanks for your input much appreciated. 1.Well it adds about +- R8k if I use 2 x 5kw inverters I just want to get it right from the start, so I do not need to change inverters in the future, I will rather add than to change the setup. What would be the cons of having 1 x 8kw or 2 x 5kw inverters? But if I have the geysers converter to Solar, I believe the 8kw will be more than enough? 2.If you say it would max out at 8.8kw what happens if the grid is on and I would use more than the 8.8kw? From what I read and understood is that anything more than 8kw if grid is available will use passthrough and supplement anything over 8kw up until 90A = +-20kw total? 3.For the oversizing I believe that solar array only produces around 80% of the rated depending conditions etc. so that would get me closer to the 8kw the inverter can supply, on your 4,5kw of panels what average kwk would you get ? 4. The house also have 5 Ac units, if extra power is available after batteries are full, I would like to throw it at the ac units or geysers 5.I will have a look at the CBI Astute wifi timer for the geyser thax a lot, yes would like to have the geysers only come on during the time when the sun is up. I still need to find alternative to the ovens not sure what’s available, my mom likes to bake Do you also use the sunsync inverter on your setup and how much kw do you produce on average per day with your 4.5kw panels?

I forgot to mention that the home have some aircons in that might be used during the day when its so hot.

Hi Everyone, I am in the process of buying a new home in Pretoria area moving in beginning of April. I want to get a solar system in the new house. The property also has a flat where my parents will stay currently, we use about 1400kwh a month and there is 2 geysers. Planning on getting the geysers changed to solar in the future when I have saved up some money again. So, I wanted to check do you think my system that I am planning will be big enough, and have a few questions hoping to clear up. The stoves both will be on gas. The ovens are still on electricity but will not be used every day. System I am planning on as follow. 24 x 440w Mono panels 1 x 8KW/48V Deye Sunsynk Hybrid Inverter 1 x Freedom Won Lite Home 15/12 LiFePO4 Battery 15kwh @90% DOD 1. Should I rather go for 2 x 5kw sunsynk inverters that could help as backup if one might fail, I was thinking that the 8kw might not be big enough for both households? From my understanding is that even though I might use more than 8kw the inverter can still use the passthrough mode to supplement anything over 8kw so only using the excess from the grid? 2. I want to oversize the Solar Pv array for days that weather is not so great, hence the reason why I chose 24 x 440 = 10560w is this a good idea? I also see that the max solar input is only 10400w will this be a problem if its slightly over will the inverter only limit up to 10400w or will it damage the inverter. 3. If the solar array produces more than the 8kw that the inverter can produce will the extra go to waste? 4. The supplier quoted me on the 15kw freedom won, I believe they are good batteries, will I be. able to add more to this battery with smaller ones of the same brand? 5. Will I have to put the geysers on the non-essential load for now until I have the solar geysers up? Thanks for the help and input.

Okay thanks for clearing that up, so i can invest in one of these then. Okay thanks for clearing that up, so i can invest in one of these then.

Does this mean you can still use your generated power from the pv even if you go above the max output of the inverter? They told me as soon as you hit the max of the inverter the passthrough all goes to the grid ?