Generator or Inverter for residential use?

wingnut771

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Feb 15, 2011
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6x 420w Canadians poly facing north
8x 390w JA mono facing west
4x 365w Canadians east facing on 1200w micro inverter.

i guess it also depends on the inverter mppt. I know a few people that are getting more power with the sunsynk compared to axperts and 1 that’s getting more than with victron. :ROFL: I don’t want to cause WW3... just what people tell me.

With me, I get around 90% of the rated power at peak
All connected in series?
 

RonSwanson

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May 21, 2018
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6x 420w Canadians poly facing north
8x 390w JA mono facing west
4x 365w Canadians east facing on 1200w micro inverter.

i guess it also depends on the inverter mppt. I know a few people that are getting more power with the sunsynk compared to axperts and 1 that’s getting more than with victron. :ROFL: I don’t want to cause WW3... just what people tell me.

With me, I get around 90% of the rated power at peak
Wow, that's 7.106 kWp, quite a lot for that 5.5K Sunsynk!
I have 6.120 kWp JA Solar monos, purely because of overcast conditions (I usually get about 1000-1100 watts, enough to charge my batteries and service my base load (around 450W) every day, regardless of the weather).
 

wingnut771

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Wow, that's 7.106 kWp, quite a lot for that 5.5K Sunsynk!
I have 6.120 kWp JA Solar monos, purely because of overcast conditions (I usually get about 1000-1100 watts, enough to charge my batteries and service my base load (around 450W) every day, regardless of the weather).
All facing different directions tho.
 

vassen

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Wow, that's 7.106 kWp, quite a lot for that 5.5K Sunsynk!
I have 6.120 kWp JA Solar monos, purely because of overcast conditions (I usually get about 1000-1100 watts, enough to charge my batteries and service my base load (around 450W) every day, regardless of the weather).
Well, the microinverter doesn’t really count so I think one could have the 6.5kw on the inverter and another 2.x kw on microinverter input.
 

RonSwanson

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Well, the microinverter doesn’t really count so I think one could have the 6.5kw on the inverter and another 2.x kw on microinverter input.
It's still quite a lot, granted as @wingnut771 pointed out your panels are not all North facing, so the outputs are staggered. And as long as you are not overloading the MPPTs, which I strongly doubt.
 

Tariqe

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Mar 20, 2016
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6x 420w Canadians poly facing north
8x 390w JA mono facing west
4x 365w Canadians east facing on 1200w micro inverter.

i guess it also depends on the inverter mppt. I know a few people that are getting more power with the sunsynk compared to axperts and 1 that’s getting more than with victron. :ROFL: I don’t want to cause WW3... just what people tell me.

With me, I get around 90% of the rated power at peak
To be fair, the Victron guy did mention he has one mppt and the panels face NE and NW
 

vassen

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It’s really overcast in fourways this morning. Not a bit of sun. Still managing around 1.4kw total.

The JA monos seem to be a lot better than the Canadian poly. Getting 53% more power on the mppt2 JA string compared to the Canadian string mppt1. Mppt2 is only 23% bigger than mppt1.
 

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itareaninotanl

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It’s really overcast in fourways this morning. Not a bit of sun. Still managing around 1.4kw total.

The JA monos seem to be a lot better than the Canadian poly. Getting 53% more power on the mppt2 JA string compared to the Canadian string mppt1. Mppt2 is only 23% bigger than mppt1.
Good to hear.

I've just ordered 21 x 455W JA Solar for my next install.
The MBB (Multi Bus Bar) 72 Half cell PERC.

Planning on 3 strings of 7 each.

41.82v @ 10.88A x 7 = 9.5KW odd
 

RonSwanson

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It’s really overcast in fourways this morning. Not a bit of sun. Still managing around 1.4kw total.

The JA monos seem to be a lot better than the Canadian poly. Getting 53% more power on the mppt2 JA string compared to the Canadian string mppt1. Mppt2 is only 23% bigger than mppt1.

It’s really overcast in fourways this morning. Not a bit of sun. Still managing around 1.4kw total.

The JA monos seem to be a lot better than the Canadian poly. Getting 53% more power on the mppt2 JA string compared to the Canadian string mppt1. Mppt2 is only 23% bigger than mppt1.
Overcast in Kyalami / Midrand as well, was getting peaks of 2.168 kw at 09H32, and now 4.618 kw at 10H16 with my 12x 380W and 4x 390W JA Solar Mono Percs.

Edit: Yikes, had a peak of around 5.414 kw for about 15m at about 10H17, not bad for overcast and rainy weather (had a few drops of rain as well).

1611480566700.png
 
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wingnut771

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Yes. Well not all 18 panel, basically each line I described are in series. First 2 using invert mppt 1 & 2, and the 3rd on a micro inverter.
Yeah that's what I meant, I also should have said to exclude the 4 microinverter panels making AC. :thumbsup:
 

signates

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Dec 8, 2009
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Noticed some degradation in pv output over the last few days and then checked the inverter and I was only getting 17A on MPPT 2 and peak was at 7kw having normally been getting 7.6kw on a sunny day. Initially just put it off to days getting shorter.

Last time I hosed the panels down was about a month ago and we have not had any significant rain. Cleaned off all the dust build up and amps are back up to 18.5A and peaking at 8kw.

Guess I'll have to put in a reminder to clean off the dust every couple of weeks in summer. Screenshot_20210124-133216_SOLARMAN%20Business.jpg
 

Saba'a

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Branch now in Midrand it seems. Great as no shipping costs if you collect, I would assume.
 

Neuk_

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Jan 23, 2018
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Although we are enjoying the cooler weather, internal temperatures reached just shy of 30 Deg C on Friday and Saturday, the overcast conditions are not conducive for PV generation at all but we still managed to generate 7.43kWh via PV yesterday with our small PV setup and light load.
 

SmartShack

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Jan 4, 2021
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in our complex they build a pool motor box around a generator with some insulation and that does a pretty good job but I am more for inverters and deep cycle batteries .
 
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