All things Sunsynk (Deye, Inge, etc...)

swakop_toe said:
I was led to believe, with the MPPT, when the sun flas on the east facing panels, it will even out the production, reducing it with what the west facing panels is not (yet) producing?
So, basically, to prevent shading/load balancing, do a hard switch between the 2 strings.
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Not necessary. Just have them in parallel. Provided it's daytime, they will be up to V despite being shaded unless you cover them with shadecloth lol
 
swakop_toe said:
I was led to believe, with the MPPT, when the sun flas on the east facing panels, it will even out the production, reducing it with what the west facing panels is not (yet) producing?
So, basically, to prevent shading/load balancing, do a hard switch between the 2 strings.
Click to expand...
Panel voltage is pretty much consistent under all non-dark conditions, it's the amps which change depending on irradiation intensity. Connecting them in parallel they won't negatively affect one another. As I mentioned earlier though your bigger problem is that 2 panels won't be enough voltage for the MPPT.
 
Rain and clouds in Cape Town today so PV Production is concomitantly reduced.

Was thinking that in this context, since I don't have enough PV to power the house and charge the batteries it makes sense to prioritise Battery Charge over Load to ensure that I don't need to top up the battery from the Grid later on?

Feels less efficient to top up batteries from Grid rather than Solar....

Or is it all much of a muchness?

Thoughts?
 
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AfricanTech said:
Rain and clouds in Cape Town today so PV Production is concomitantly reduced.

Was thinking that in this context, since I don't enough PV to power the house and charge the batteries it makes sense to prioritise Battery Charge over Load to ensure that I don't need to top up the battery from the Grid later on?

Feels less efficient to top up batteries from Grid rather than Solar....

Or is it all much of a muchness?

Thoughts?
Click to expand...

Had a few days like this... it really depends on your set up.

For me - my daily usage when I'm not at home is incredibly low. Last week had a rainy day, Battery was around 60%. No one was going to be home for the day, so I left it on priority load and the battery just slowly charged up over the course of the day.

I checked in periodically during the day to see if I needed to switch it, but even with the rain, by about 12.. maybe 1pm.. the battery was full.
 
Fcon_Vpro said:

All things Sunsynk (Deye, Inge, etc...)

I see on both my Sunsunk App and on the web, production did not reset at midnight, so as a result, today's generation figures are from yesterday. Anyone else seeing the same?
mybroadband.co.za mybroadband.co.za
Just apply same steps to the browser

You might need to request advanced user access from sunsynk:

Sunsynk Connect | Sunsynk

A unique & innovative feature that sets us apart from other solar energy brands. Sunsynk Connect. The app that allows you to monitor and manage your energy, wherever you are.
www.sunsynk.org www.sunsynk.org
Fill out the form there
Click to expand...
Any idea how long they took to do the change for you?
 
AfricanTech said:
Rain and clouds in Cape Town today so PV Production is concomitantly reduced.

Was thinking that in this context, since I don't enough PV to power the house and charge the batteries it makes sense to prioritise Battery Charge over Load to ensure that I don't need to top up the battery from the Grid later on?

Feels less efficient to top up batteries from Grid rather than Solar....

Or is it all much of a muchness?

Thoughts?
Click to expand...
I'm still experimenting, haven't had enough cloudy days in a row to decide what I need to do yet. For now I'm just leaving things like I have them - still getting 1000-2000W of solar currently even with the clouds which is enough for base load and some charging.
 
RonSwanson said:
OK, so next step is to determine why the BMS is limiting you to 10A. Your dealer / installer may have more info on this.
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Apologies for the random update here, but I felt like it was necessary to say thanks again for the guidance. The installer ended up swapping out the inverter yesterday and everything seems to be okay now. I don't think it would've been resolved if not for the help I got here. Thanks.
 
TheJman said:
Had a few days like this... it really depends on your set up.

For me - my daily usage when I'm not at home is incredibly low. Last week had a rainy day, Battery was around 60%. No one was going to be home for the day, so I left it on priority load and the battery just slowly charged up over the course of the day.

I checked in periodically during the day to see if I needed to switch it, but even with the rain, by about 12.. maybe 1pm.. the battery was full.
Click to expand...
Mine is quite different -

07h00 - 08h30 - light/medium loads - kettle, microwave, toaster, 1 x shower use, etc
09h00 - 14h00 my heavy loads - dishwasher, washing machine, tumble dryer (when it's raining), geyser replenishment, shower (wife + mother-in-law), pool pump

DrJohnZoidberg said:
I'm still experimenting, haven't had enough cloudy days in a row to decide what I need to do yet. For now I'm just leaving things like I have them - still getting 1000-2000W of solar currently even with the clouds which is enough for base load and some charging.
Click to expand...

My base load is around 1000W.

Edit:
Cloud cover lifted a bit and I'm generating about 4400W - my 'heavy' loads are done so the battery is merrily charging at 3100W - for efficiency I should try to get the household to spread the heavy loads more.
 
It's the best to watch the sun throw power at heavy loads and battery charging... feel like on those days, the mad scientist in me has won!

Turned the geyser on now - and there is this haze overhead, solar is struggling to cover it sadly.. so mad scientist today only won a little bit
 
Ok, now I'm a little confused. Remotely watching the system and I see my solar has dropped to like 8w. Am currently loadshedding so no grid. Normally the system draws from the panels and supplements battery to load but for some reason right now, its pulling mostly from battery and there is minimal from the panels.

I'm not there right now so would love to see what the unit says but no alerts are showing online or in the portal.

Battery is actually at 100% so could it maybe be a forced discharge? I see the DC temp is around 60.

Load is also pretty low , 400W total consumption which is normal for "background" running.

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Speedster said:
As I mentioned earlier though your bigger problem is that 2 panels won't be enough voltage for the MPPT.
Click to expand...

You do get high voltage panels where they put the 2 halves of the panel in series instead of parallel. So they are 70-80v per panel depending on size.
That should be good enough for a 5kw sunsynk which is 125-425v mppt range.
 
swakop_toe said:
I was led to believe, with the MPPT, when the sun flas on the east facing panels, it will even out the production, reducing it with what the west facing panels is not (yet) producing?
So, basically, to prevent shading/load balancing, do a hard switch between the 2 strings.
Click to expand...

The mppt controllers are smart enough to prevent that. They will attempt to track the voltage of the panels that have more irradiance. The panels that receive lower amount of irradiance will match the voltage set by the mppt controller but obviously at a lower current.

In your scenario of only 2 panels you will need high voltage panels to meet the mppt controller minimum so let's say in the late afternoon your two high voltage panels on the west side are at 180v and 11amps your east panels will still be at 180v but maybe only 3amps as that's all they can manage with the irradiance level they receive.

There is some inefficiency that come into play in this scenario but its not a huge amount. Its still better to have a mppt for each array but that costs more money. Its also a good idea to put the exact make, model and number of panels on both strings.
 
Kosmik said:
Ok, now I'm a little confused. Remotely watching the system and I see my solar has dropped to like 8w. Am currently loadshedding so no grid. Normally the system draws from the panels and supplements battery to load but for some reason right now, its pulling mostly from battery and there is minimal from the panels.

I'm not there right now so would love to see what the unit says but no alerts are showing online or in the portal.

Battery is actually at 100% so could it maybe be a forced discharge? I see the DC temp is around 60.

Load is also pretty low , 400W total consumption which is normal for "background" running.

View attachment 1511777

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View attachment 1511785
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Something looks wrong with how suddenly the PV dropped away. Maybe a breaker trip on the PV side? Can you check PV voltage per string?
 
furpile said:
Something looks wrong with how suddenly the PV dropped away. Maybe a breaker trip on the PV side? Can you check PV voltage per string?
Click to expand...
Voltage was fine, no ampage, as if there was no load. It could just be the stupid logger. I can't physically check but I know my wife is not going to go and play around and it came right again even before loadshedding ended OR the SOC dropped to 99%. It could never have been drawing 500W for an hour and not drop the battery percentage if the battery wasnt charging so I think its just a stat ballsup.

1681994703528.png
 
B-1 said:
The mppt controllers are smart enough to prevent that. They will attempt to track the voltage of the panels that have more irradiance. The panels that receive lower amount of irradiance will match the voltage set by the mppt controller but obviously at a lower current.

In your scenario of only 2 panels you will need high voltage panels to meet the mppt controller minimum so let's say in the late afternoon your two high voltage panels on the west side are at 180v and 11amps your east panels will still be at 180v but maybe only 3amps as that's all they can manage with the irradiance level they receive.

There is some inefficiency that come into play in this scenario but its not a huge amount. Its still better to have a mppt for each array but that costs more money. Its also a good idea to put the exact make, model and number of panels on both strings.
Click to expand...
I have the 5kW Sunsynk inverter.
Would like to add another 4x 465W, 2x facing east, 2x facing west) JA solar panels. The same as the 6 currently installed.
The are rated at 50Voc Open Circuit.
I suppose linking the each set of 2 panels in series then. The the 2 strings in parallel.
 
swakop_toe said:
I have the 5kW Sunsynk inverter.
Would like to add another 4x 465W, 2x facing east, 2x facing west) JA solar panels. The same as the 6 currently installed.
The are rated at 50Voc Open Circuit.
I suppose linking the each set of 2 panels in series then. The the 2 strings in parallel.
Click to expand...
Those won't put out enough voltage for the mppt controller to start up. You will either need to add more panels or get some high voltage ones.
 
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