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

[RonSwanson]

My Goodwe es 5048 was replaced with a Deye 8Kw, was basically a new install as the location moved.
PV generation is also better now as the Goodwe's MPPT was 11A.
Is it possible that the PV generation can be more than the panel wattage? (6 X 545W per string)

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Most that have upgraded from Goodwe to Deye / SS have reported that the MPPT is far more efficient.
And yes, under the correct conditions (panels colder than STC, cloud edge effect) it is quite possible to witness production in excess of that printed on the sticker.

 

[Census]

Most that have upgraded from Goodwe to Deye / SS have reported that the MPPT is far more efficient.
And yes, under the correct conditions (panels colder than STC, cloud edge effect) it is quite possible to witness production in excess of that printed on the sticker.

Thanks, nice and cool and cloudy in Midrand today.

 

[DrJohnZoidberg]

My Goodwe es 5048 was replaced with a Deye 8Kw, was basically a new install as the location moved.
PV generation is also better now as the Goodwe's MPPT was 11A.
Is it possible that the PV generation can be more than the panel wattage? (6 X 545W per string)

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Yep, seen my 6.5kWp system generate 8kW in bursts.

 

[RonSwanson]

@Francine11 bot much?

 

[RonSwanson]

Thanks, nice and cool and cloudy in Midrand today.

Indeed. So here are some stats for yesterday in Midrand.

I have a 6080Wp array that is 3 years 7 months old and a 5.5kW SS. Note the PV production peaking at well above that between 12H25 - 12H35, to the tune of 400 Watts:


So what was it? Temperature coefficient or cloud edge effect? The panels were certainly hotter than STC because they were busy pumping much electrons.

Looking at my weather station, temps were less than a degree lower than STC (25 degrees C), and very little wind (5km/h). My panels only increase wattage by .38% per degree C lower, which (taking it at 1 degree C) at best is around 23W on my array, so definitely not all temp coefficient:


Sun was peaking:


Solar radiation suggests clouds present, yet a maximum of 889.4W/m2:


So while 889.4 W/m2 isn't huge (many summer days I peak at over 1400 W/m2), something was responsible for the over 400W of production in excess of my oldish panels' rated output. STC is calculated at 1000W/m2 irradiance, so it's quite significant.



This underscores the importance of sizing an array to take minimum temperature into account (and the cooling effect of winds), as well as a healthy margin for our actual solar radiation in South Africa, and lastly cloud edge effect. Failure to do so could result in expensive repairs.

 

[furpile]

There are two ways to do it, from the eskom feed via changeover switch, and from the Aux. I prefer the Aux.

Points to remember (from my notes):

1) Grid And Gen Both can't work at same time

2) Gen Dry contact should connect to 3.6/5kw to GV/5&6 and 8Kw to GS/7&8

3)Gen Signal and Gen Charge should Be Clicked

4)Gen Load ON Batt should be more than Battery % or Voltage

5) If using Time of use - SOC should be more than Gen ON (At this SOC, Gen will stop)

6) If not using Time of use - Default is set to 95% , Gen will be Off when battery reach 95%

An here is the Sunsynk genny guide (there may be a more up to date version on Sunsynk.org.

Need some help please. I have an 8kW Sunsynk that has been running for more than a year. Trying to connect a 6kW generator on the AUX port but it is not taking power from the generator. I have used the Sunsynk manual for generator install but that is geared for ATS which this generator does not have. Any advice please? Generator voltage is at 229V when running, cannot check the frequency though.

 

[Düber]

Need some help please. I have an 8kW Sunsynk that has been running for more than a year. Trying to connect a 6kW generator on the AUX port but it is not taking power from the generator. I have used the Sunsynk manual for generator install but that is geared for ATS which this generator does not have. Any advice please? Generator voltage is at 229V when running, cannot check the frequency though.

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I have the Deye so can't help you with the screens, but basically I had the get my input limits as wide as possible. So the highest Hz it would go to and the lowest. The voltage limits were fine in my case.
If I go to my generator screen and something is out of limit it's highlighted, but because the inverter disconnects so quickly it's more of a flash so it's hard to notice and rectify.

I also had adjust my generator Hz to be under the top limit when unloaded.

They are sadly very fussy when it comes to generators.

 

[furpile]

I have the Deye so can't help you with the screens, but basically I had the get my input limits as wide as possible. So the highest Hz it would go to and the lowest. The voltage limits were fine in my case.
If I go to my generator screen and something is out of limit it's highlighted, but because the inverter disconnects so quickly it's more of a flash so it's hard to notice and rectify.

I also had adjust my generator Hz to be under the top limit when unloaded.

They are sadly very fussy when it comes to generators.

Thanks will try to increase the band. On the sunsynk this is the same band that applies to the grid power?

 

[RonSwanson]

Need some help please. I have an 8kW Sunsynk that has been running for more than a year. Trying to connect a 6kW generator on the AUX port but it is not taking power from the generator. I have used the Sunsynk manual for generator install but that is geared for ATS which this generator does not have. Any advice please? Generator voltage is at 229V when running, cannot check the frequency though.

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What is the batteries' SoC?

As per my notes:

3)Gen Signal and Gen Charge should Be Clicked <-- you don't have gen signal ticked

4)Gen Load ON Batt should be more than Battery % or Voltage <--you have this at 20%, so is your battery at less than 20% SoC?

5) If using Time of use - SOC should be more than Gen ON (At this SOC, Gen will stop) <-- What is the batteries' SoC?

6) If not using Time of use - Default is set to 95% , Gen will be Off when battery reach 95% <-- What is the batteries' SoC?

 

[furpile]

What is the batteries' SoC?

As per my notes:

3)Gen Signal and Gen Charge should Be Clicked <-- you don't have gen signal ticked

4)Gen Load ON Batt should be more than Battery % or Voltage <--you have this at 20%, so is your battery at less than 20% SoC?

5) If using Time of use - SOC should be more than Gen ON (At this SOC, Gen will stop) <-- What is the batteries' SoC?

6) If not using Time of use - Default is set to 95% , Gen will be Off when battery reach 95% <-- What is the batteries' SoC?

Thanks. It wasn't ideal time to test as the soc was at 92%.

Isn't gen signal only used for auto start functionality?

Changes the ON value to 80%, as I am not using ATS thought it would work when I start the generator?

For the test I set SOC to 100% with only gen charge. Turned the inverter grid supply off and started the inverter. Could hear a relay switch when the generator starts and stops but it wouldn't use gen power.

Will test again in a bit with no PV, no grid and soc at 60%.

 

[Düber]

Thanks will try to increase the band. On the sunsynk this is the same band that applies to the grid power?

TBH I can't remember exactly but I think it was. I'm not close to the inverter at the moment so I can't check.

Good catch by @RonSwanson on the gen signal box, I don't think it will work without it being ticked.

One thing I have just remembered is because the generator has to be powerful enough to run the load and charge the battery set at the same time, I lowered the charging Amps for gen charge and then gradually increased it to a point where the generator was not slowed down enough (just for a split second, the inverter is very fussy) to stop the inverter disconnecting when a spike load like a fridge turned on.

 

[furpile]

What is the batteries' SoC?

As per my notes:

3)Gen Signal and Gen Charge should Be Clicked <-- you don't have gen signal ticked

4)Gen Load ON Batt should be more than Battery % or Voltage <--you have this at 20%, so is your battery at less than 20% SoC?

5) If using Time of use - SOC should be more than Gen ON (At this SOC, Gen will stop) <-- What is the batteries' SoC?

6) If not using Time of use - Default is set to 95% , Gen will be Off when battery reach 95% <-- What is the batteries' SoC?

TBH I can't remember exactly but I think it was. I'm not close to the inverter at the moment so I can't check.

Good catch by @RonSwanson on the gen signal box, I don't think it will work without it being ticked.

One thing I have just remembered is because the generator has to be powerful enough to run the load and charge the battery set at the same time, I lowered the charging Amps for gen charge and then gradually increased it to a point where the generator was not slowed down enough (just for a split second, the inverter is very fussy) to stop the inverter disconnecting when a spike load like a fridge turned on.

Thanks for the help. Change the on value to 80% and ticked gen signal. Tested again now with soc at 60% and target of 80% and the generator kicked in. It is a 6000W generator and I set the limit to 5000W. Charges the batteries at 2000W (40A charge limit, could be higher with 2x Hubble AM2's but works well enough).

One more question, if it is running off the generator and mains comes back on will it just stop using the generator power and switch to mains on its own? So the gen will be running with no load? No risk here? Meaning I don't have to isolate mains input when running the generator?

 

[Düber]

Thanks for the help. Change the on value to 80% and ticked gen signal. Tested again now with soc at 60% and target of 80% and the generator kicked in. It is a 6000W generator and I set the limit to 5000W. Charges the batteries at 2000W (40A charge limit, could be higher with 2x Hubble AM2's but works well enough).

One more question, if it is running off the generator and mains comes back on will it just stop using the generator power and switch to mains on its own? So the gen will be running with no load? No risk here? Meaning I don't have to isolate mains input when running the generator?

No idea and I have wondered about it myself.

I don't have that problem because I made a box that automatically turns the generator off after 3 minutes of stable Eskom. My Inverter has a similar one but a 5 minute delay, so the gen is long off by then.

I would assume not but interested to hear opinions/answers.

 

[RonSwanson]

Thanks for the help. Change the on value to 80% and ticked gen signal. Tested again now with soc at 60% and target of 80% and the generator kicked in. It is a 6000W generator and I set the limit to 5000W. Charges the batteries at 2000W (40A charge limit, could be higher with 2x Hubble AM2's but works well enough).

One more question, if it is running off the generator and mains comes back on will it just stop using the generator power and switch to mains on its own?

I would hope so.

So the gen will be running with no load? No risk here? Meaning I don't have to isolate mains input when running the generator?

Yep, it's a good assumption it will just run on with no load. Don't want to test it though

 

[furpile]

I would hope so.

Yep, it's a good assumption it will just run on with no load. Don't want to test it though

Yeah, just wondering if I need to turn off mains to run the generator to be sure. Don't want to do that because then I won't know when mains is restored but don't want to risk the inverter. Will see if I can get an answer out of Sunsynk.

 

[RonSwanson]

Yeah, just wondering if I need to turn off mains to run the generator to be sure. Don't want to do that because then I won't know when mains is restored but don't want to risk the inverter. Will see if I can get an answer out of Sunsynk.

What I do know is if the mains is connected, the genny will start and run but the inverter won't draw anything from it.

 

[Katelknaap]

The optimist in me would think that maybe they just haven't updated their website pricing for a while, the pessimist would think they are trying to rip people off. Either way, do your homework when considering a purchase as this price is rough.

 

[RonSwanson]

The optimist in me would think that maybe they just haven't updated their website pricing for a while, the pessimist would think they are trying to rip people off. Either way, do your homework when considering a purchase as this price is rough.

That's the price of a 12K.

Are you considering an upgrade?

 

[Katelknaap]

That's the price of a 12K.

Are you considering an upgrade?

No, checked up on pricing as a retired colleague is looking at installing a system. My 5kw is chugging along nicely.

 

[RonSwanson]

No, checked up on pricing as a retired colleague is looking at installing a system. My 5kw is chugging along nicely.

Ask him to consider an 8K Solis instead, cheaper and far better.

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