Leshen Posted February 27, 2021 Posted February 27, 2021 Just a quick demo to show the passthrough function of the Sunsynk 8kw. Inverter is maxed out at 8000w and it uses the remainder 1200w from Eskom. This passthrough occurs on the Essential side of the Inverter up to a max of 90A. We powered 2 kettles, 2 microwaves, a hairdryer and a DAB booster pump with a total of 9200w for the demo. Boerseun, Yellow Measure and WannabeSolarSparky 3 Quote
Boerseun Posted February 27, 2021 Posted February 27, 2021 Brilliant those Sunsynks really are amazing machines and this in real life application no fake setup here..it illustrates how the sunsynk inverter can blend power seamlessly Amazing proof is in the pudding..!! Leshen 1 Quote
Achmat Posted February 27, 2021 Posted February 27, 2021 (edited) 2 hours ago, leshen said: Just a quick demo to show the passthrough function of the Sunsynk 8kw. Inverter is maxed out at 8000w and it uses the remainder 1200w from Eskom. This passthrough occurs on the Essential side of the Inverter up to a max of 90A. We powered 2 kettles, 2 microwaves, a hairdryer and a DAB booster pump with a total of 9200w for the demo. Did the same a while ago. Only question that I still have, is the total inverter capacity therefore 35A (from pv or battery) + 90A (pass through from grid)? Edit That would be over 27kw. Not that I'll ever be able to test this. Edited February 27, 2021 by Achmat Quote
Speedster Posted February 27, 2021 Posted February 27, 2021 9 hours ago, Achmat said: Did the same a while ago. Only question that I still have, is the total inverter capacity therefore 35A (from pv or battery) + 90A (pass through from grid)? Edit That would be over 27kw. Not that I'll ever be able to test this. No, total max is 90A Quote
Leshen Posted February 27, 2021 Author Posted February 27, 2021 10 hours ago, Achmat said: Did the same a while ago. Only question that I still have, is the total inverter capacity therefore 35A (from pv or battery) + 90A (pass through from grid)? Edit That would be over 27kw. Not that I'll ever be able to test this. 90A is absolute peak current Quote
Frost Posted March 17, 2021 Posted March 17, 2021 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 ? Quote
Speedster Posted March 17, 2021 Posted March 17, 2021 3 hours ago, Frost said: 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 ? The inverter can only invert up to its rating (i.e. convert DC from PV or battery to AC), but it can pull in extra PV from the grid if necessary. Quote
Leshen Posted March 17, 2021 Author Posted March 17, 2021 30 minutes ago, Speedster said: The inverter can only invert up to its rating (i.e. convert DC from PV or battery to AC), but it can pull in extra PV from the grid if necessary. It definitely doesnt pull in extra PV from the grid. What it will do is use the grid to supplement anything over 8kw or 5kw which is the passthrough function. This passthrough is on the essential side. Yellow Measure 1 Quote
Speedster Posted March 17, 2021 Posted March 17, 2021 32 minutes ago, leshen said: It definitely doesnt pull in extra PV from the grid. What it will do is use the grid to supplement anything over 8kw or 5kw which is the passthrough function. This passthrough is on the essential side. Sorry. I shouldn't type while driving. I clearly meant AC... Yellow Measure 1 Quote
Frost Posted March 18, 2021 Posted March 18, 2021 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. Quote
Analytical Posted March 19, 2021 Posted March 19, 2021 I'm also keen on getting the 8kW Sunsynk when I move into my new house. Yellow Measure and Chloe 2 Quote
Leshen Posted March 19, 2021 Author Posted March 19, 2021 21 minutes ago, Analytical said: I'm also keen on getting the 8kW Sunsynk when I move into my new house. You won’t be sorry Chloe and Yellow Measure 2 Quote
Solarsmit Posted March 19, 2021 Posted March 19, 2021 Good day, I have a client that would want to get a SUNSYNK installed on his premises. I normally use GROWATT. The 8kW PV power, is it per MPPT or is it in total, both MPPT together? Quote
Achmat Posted March 19, 2021 Posted March 19, 2021 2 minutes ago, Solarsmit said: Good day, I have a client that would want to get a SUNSYNK installed on his premises. I normally use GROWATT. The 8kW PV power, is it per MPPT or is it in total, both MPPT together? The sunsynk can take 10.4kw of solar panels in total. 5.2kw per MPPT. Volts need to be under 500v per MPPT and 2 strings per MPPT with 22A per MPPT on new versions and 18A on older units. Quote
Gerrie Posted March 19, 2021 Posted March 19, 2021 What is the 12Watts with the house symbol on the flow chart? Quote
Leshen Posted March 19, 2021 Author Posted March 19, 2021 52 minutes ago, Gerrie said: What is the 12Watts with the house symbol on the flow chart? Probably the oven lights Yellow Measure and Gerrie 2 Quote
Yellow Measure Posted March 19, 2021 Posted March 19, 2021 52 minutes ago, Gerrie said: What is the 12Watts with the house symbol on the flow chart? Loads before the inverter, non-essential loads (not on UPS). Gerrie and Chloe 1 1 Quote
Gerrie Posted March 30, 2021 Posted March 30, 2021 On 2021/03/19 at 8:01 PM, YellowTapemeasure said: Loads before the inverter, non-essential loads (not on UPS). If Eskom is load-shedding at night can the non-essential loads on the Sunsynk also be fed from the batteries if their is a need to use non-essentials, or is this not possible? Yellow Measure 1 Quote
Peter Topp Posted March 30, 2021 Posted March 30, 2021 Hi Gerrie I am sure to feed non-essential loads coupled to grid directly during load shedding will not be possible as this will cause the power to be fed back into the grid. The answer to fix this would be fit a separate change over switch to disconnect from the grid and add it to the non essentials or a generator, however this would be difficult and could overload the inverter combined with other problems.. Quote
Gerrie Posted March 30, 2021 Posted March 30, 2021 10 minutes ago, Peter Topp said: feed non-essential loads coupled to grid directly during load shedding will not be possible Hi Pieter i did some reading on the forum and it seems if one would use the auxiliary output it seems to be possible to power the non-essential loads if the battery is above 60%. If this is possible I am planning a installation where the DB will be split into three namely, essentials, non-essentials and grid only loads. I want the luxury of powering non-essentials if batteries have enough capacity. I did read however there were guys complained of the aux power output dipping and loads like computers and TV’s switched off when this happened, this is something I want to avoid. Quote
Peter Topp Posted March 30, 2021 Posted March 30, 2021 Hi Yes it is possible as mentioned as the aux output is not coupled directly to the grid. The non essential load are usually to me are mainly higher current loads (geyser, stove, aircon etc.) and this could be a problem as these would add many KW' s as load and you are limited to the inverters output spec. not only the battery capacity as well as the problem of dipping which I do not think is resolved. Yellow Measure and Gerrie 2 Quote
Yellow Measure Posted March 31, 2021 Posted March 31, 2021 23 hours ago, Gerrie said: If Eskom is load-shedding at night can the non-essential loads on the Sunsynk also be fed from the batteries if their is a need to use non-essentials, or is this not possible? Yep as @Peter Topp has stated, but not on loads before the inverter, you would use the Aux output (if not used as a genny input). The options and versatility of Sunsynk inverters are quite amazing. Quote
Speedster Posted March 31, 2021 Posted March 31, 2021 1 hour ago, YellowTapemeasure said: Yep as @Peter Topp has stated, but not on loads before the inverter, you would use the Aux output (if not used as a genny input). The options and versatility of Sunsynk inverters are quite amazing. On this point - are the loads before the inverter able to be set to only use PV while using both PV and battery for load and smart-load/aux? Quote
Peter Topp Posted March 31, 2021 Posted March 31, 2021 (edited) Hi Speedster As far as I know you can set to export or feedback power and can be set at a specific setting. This is only possible if there is excess pv power not used by the battery, load and aux. This is the setting that uses the ct value to stop or allow exporting of power back to the grid. You cannot also export power if there is no grid power available (load shedding etc). The only other way to export power is switch off the output load and set the inverter to export all pv power to the grid and non essentials tied to the grid. Edited March 31, 2021 by Peter Topp Quote
Speedster Posted March 31, 2021 Posted March 31, 2021 I think what I'm trying to find out is if the following is possible: Load: Essential circuits powered from all available sources Aux: Non-essential circuits but which can be powered from battery too Before inverter: Non-essential circuits which only run off PV (if sufficient), such as pool pump. Quote
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