Over P(max) above STC

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raysun
Forum Emperor
Posts: 4591
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Over P(max) above STC

Post by raysun »

It wasn't especially hot today, but was above 25°C for most of the day.

Be that as it may, at some time during the day the six 355W panels on this FM80 were peaking at 387W.

The wild thing is it seems to be some time between 8 and 9 AM, as the charge cycle went into Absorb in that hour.
Screenshot_20200613-175058_Chrome.jpg
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EA6LE-ONE
Forum Czar
Posts: 505
Joined: Tue May 05, 2020 7:51 am
My RE system: System 1:
MATE3s, 3 x Radian GS8048A,
6 x FLEXmax 100, HUB10,
2 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 6 x FLEXware ICS Plus,
78 x PANASONIC VBHN325SA17 325W

System 2:
MATE3s, Radian GS8048A,
2 x FLEXmax 100, HUB10
1 x EnergyCell 48V 2700RE,
1 x FLEXnet DC, 2 x FLEXware ICS
21 x PANASONIC VBHN325SA17 325W
Location: Providenciales, Turks & Caicos Isl.

Re: Over P(max) above STC

Post by EA6LE-ONE »

I had experiencing the same in march, the peak was very high for the panels but I calculated the continuous power that was generated when the sun was hitting the panels perfectly perpendicular. The panels were providing 355W and they are rated at 325W. The peak on the charger was like 385W per panel. Maybe if we keep the lock down longer and have less pollution next year we might reach new highs.
In my case might be that the Panasonic panels that I got are the more efficient ones. VBHN325SA17, VBHN330SA17, VBHN330SA17 and VBHN345SA17 are the same panels but when they are tested some are more efficient than others and they are sold accordingly.
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