PH18

abdallah.91

New Member
Joined
Sep 11, 2021
Messages
39
so I will work next week end on regrouping the string so 6 grroups of 2 serie panel. but I am wondering as these days the VOC doesn't exceed 137V while open circuit, the problem that I am facing is normal? is that expected to take 600w only during winter days from that 5 KW system?
 

abdallah.91

New Member
Joined
Sep 11, 2021
Messages
39
so if I bought the PH18-5048 PRO instead of PLUS which could work without batteries, what happens if the sky is something cloudy as my case? is it logic to take some hundreds watt only from 12 panel of 400w?
 

upnorthandpersonal

Administrator
Joined
Dec 25, 2019
Messages
2,222
Location
63 degrees North, Finland
That's why you a) have a battery that can give you a few days of autonomy and b) use a generator for the very difficult times to charge the battery.

I'm off-grid here for a while now. My winters are worse than yours :)
 

syclonedriver

Solar Enthusiast
Joined
May 16, 2021
Messages
75
I cannot answer your question about PV being over voltage. 5v doesn't seem like much, but I just don't know.

On overcast days I find that I would need 10x the panels as my load. 500 watt load would require about 5000 watts of panels.
 

abdallah.91

New Member
Joined
Sep 11, 2021
Messages
39
I cannot answer your question about PV being over voltage. 5v doesn't seem like much, but I just don't know.

On overcast days I find that I would need 10x the panels as my load. 500 watt load would require about 5000 watts of panels.
owhh, really? so I could safe sleep now? I took 500w from my 5000w system but unfortunately we still didn't enter the winter season yet. how the winters and rainy days will be?
 

abdallah.91

New Member
Joined
Sep 11, 2021
Messages
39
That's why you a) have a battery that can give you a few days of autonomy and b) use a generator for the very difficult times to charge the battery.

I'm off-grid here for a while now. My winters are worse than yours :)
I still have not bought batteries yet, I am using a collection of different sizes, different kinds, and different ages of old used cars an generators batteries to benefit from the day light energy untill I find the optimal batteries bank, is there any problem in that method?
 
Top