Hi this is interesting, i am also exceeding. I have 12 by 650w panels connected in series to a Deye 8kw. I'm at 480volts (bit too close to the 500v max), so i am looking at options to keep my generation as high as possible but not cause damage. Any thoughts on how i can do this?
If the Deye is like the SolArk, it should have a gen input, which can be programmed to accept AC coupled panels. A quick read of the manual should tell you
So even if the sun is out and your panels are capable of generating 11,550 Watts, there is no danger of the inverter receiving more than it can take - the inverter's MPPT controllers decide how much power to take from the panels, not the other way round.
Oh, I didn't realise that, Solar Guppy! I'd better have a look at what the manual says for the Deye 8kW inverter, because I have 12kW of panels!
Edit: I can't find anything about the maximum rated input wattage at all in the Deye manual for the SUN-8K-SG01LP1-US/EU. But then, the manual is rather sparse.
Your welcome, don't want to see equipment have an early end!Thank you so much for finding that information, Solar Guppy! I will have to have a rethink about what I am going to do now... I'll try to find the Growatt SPF5000ES overpanelling limit.
so far all we have received is stickered at 18A
It is important to notice that 18A is all the inverter will PULL from the panels, this means that 2x 10A strings are acceptable per growatt, heck, you could put 40A it would clip 50% at peak hours though.
Dont go over voltage on the MPPT but Over amperage is fine, the MPPT bosses the panels, not the other way around
Anw what s the max for deye 8kw can it be 9 in series 9 in parallel for having mac voltage and maximum current?This isn't true for all conditions.
In slow changing conditions, the mppt controller should be able reduce the load on the solar array and keep power within it's limits.
In rapid insolation changes, typically edge of cloud events, the rapid increase in solar irradiance is faster than the controllers control loop can adjust too and will result in over-current conditions that will cause DC current faults or possibly permanent component failures.
Inverters typically specify the over paneling maximum as a percentage of rated input wattage for this reason.
I've seen this on multiple manufactures with my testing, even current AIO units, so do not exceed the manufactures listed ratings.
if someone exceed the whatts in pannels will be none sens wont use any benefit from itThis isn't true for all conditions.
In slow changing conditions, the mppt controller should be able reduce the load on the solar array and keep power within it's limits.
In rapid insolation changes, typically edge of cloud events, the rapid increase in solar irradiance is faster than the controllers control loop can adjust too and will result in over-current conditions that will cause DC current faults or possibly permanent component failures.
Inverters typically specify the over paneling maximum as a percentage of rated input wattage for this reason.
I've seen this on multiple manufactures with my testing, even current AIO units, so do not exceed the manufactures listed ratings.
I believe there is a quantitative benefit to over panelling. Panels rarely produce their rated power and degrade over time. Higher DC to AC ratios mean that the inverter will be operating at optimum output more often. As mentioned earlier the amount lost to clipping is often a concern, but when calculated over time it is often very small.....
if someone exceed the whatts in pannels will be none sens wont use any benefit from it
hv 8 kw inverter using 12 pv 6 in series vs 6 other series producing like 5k to 6 k top should i go further to 8 pv each or 9 or it s riskyI believe there is a quantitative benefit to over panelling. Panels rarely produce their rated power and degrade over time. Higher DC to AC ratios mean that the inverter will be operating at optimum output more often. As mentioned earlier the amount lost to clipping is often a concern, but when calculated over time it is often very small.
Hard to tell without actual Wattage of the panels. Series or parallel does not matter for the purposes of looking at DC to AC ratios. With an inverter capacity of 8kW you might go as high as 10 to 12kW in panels depending on location, orientation and tilt.hv 8 kw inverter using 12 pv 6 in series vs 6 other series producing like 5k to 6 k top should i go further to 8 pv each or 9 or it s risky
What is the panels stats on the back?I
hv 8 kw inverter using 12 pv 6 in series vs 6 other series producing like 5k to 6 k top should i go further to 8 pv each or 9 or it s risky
Panels are 545w longi with 40 v each direction south 29C beirut lebanonHard to tell without actual Wattage of the panels. Series or parallel does not matter for the purposes of looking at DC to AC ratios. With an inverter capacity of 8kW you might go as high as 10 to 12kW in panels depending on location, orientation and tilt.
What is the panels stats on the back?
STC VoC per panel?
If it is under 50V then no more than 8 in series per string. That would make it 400V and the MPPTs MAX is 425V charging.