peak real-world output of Power One Aurora PVI-3.6-OUTD-UK

[bazzaqpc]

Yes, you are correct,just had a chat,he thought I was G59 and I`m not so all cancelled and back to squre one !

 

[Earthstore]

Sizing an inverter is quite complex to get it correct, if you have an inverter that is too large, IE a 5000TL on a 4KWP system, of course it should never "max out", however, it takes more power to run a larger inverter also its start up voltage is normally higher, so it may well produce less KWH's per year.

Because the weather is not constant, we do get peak days, and peak times of the day also, therefore if an inverter peaks on the odd occasion, it will probably be working at it's optimum (sweet spot) most of the time, so over a full year producing you more KWH's.

 

[finewine]

Hi Guys, I have a SMA 3600tl-20 and have seen my output peak at 3685w and never higher. ANyway, out of interest I just logged in as an installer on my Sunny Explorer and saw I could change the output from 3680 to 3740w so I did just to see what happens? Well, the inverter turned off and then came back on. Anyway, its not sunny at the moment but do you think I will see the peak output go up to 3740w now or should I change it back?

 

[Earthstore]

Your inverter is set at 3685w to be compliant with the G83 rules, so by changing it you really should have G59 approval from the DNO.
G83 means as it is limited, an installer can fit a system then tell the DNO that it has been installed, over 3680w or 16A you need to have approval from the DNO first, which they may insist on some upgrades.

I do except that it is only a little over, but it is still over, also you may find that it trips out, doubtful, but possible.

I hope this helps.

 

[Rodnay]

I am indeed: Hampshire, 40 deg roof, 10 degrees east of due south.

Happy to wait a bit but the consistent peak value did make me think there was a ceiling somewhere. I've now gone back and looked at the inverter log files and the DC peak wattage from the panels appears to be roughly 3700 watts so perhaps it all makes sense for the time of year.

I have seen the Aurora PVI-3.6-OUTD peak slightly above 3800W on many occasions and different installations you will have losses through your Inverter plus the power ratings of your panels can be slightly higher or less than what they are rated at plus you have losses through your dc cables too. This is with GS83 settings too

 

[Gavin A]

Hi Guys, I have a SMA 3600tl-20 and have seen my output peak at 3685w and never higher. ANyway, out of interest I just logged in as an installer on my Sunny Explorer and saw I could change the output from 3680 to 3740w so I did just to see what happens? Well, the inverter turned off and then came back on. Anyway, its not sunny at the moment but do you think I will see the peak output go up to 3740w now or should I change it back?

this is why we change the installer password. Not that 60 watts is going to make any difference, but we've put our names to the fact that the inverter is limited to 3680W, but it's not really if the customer can just log in and change it themselves.