one more panel

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one more panel

Postby whitegp on Fri Feb 03, 2012 10:31 am

Okay-I jumped in with my Ccard and bought 20 Evergreen ES-E-200 fc3.
Pmp of 200w
Pmp max 204.99w
Pmp min 200w
Vmp 28.3v
Imp 7.10a
Voc 35.0v
Isc 7.81a

The issue--The FMax 80 and the string Calculator tells me I can set up 3 strings of up to 24 panels. Using a Outback 3048.
While I am still considering a stand alone array, I could get 21 on my roof which faces perfectly South at a Pitch of 52 degrees and no shading. A Clear and cold location at 9200'.
What will happen if I integrate one different make Panel into my 20. For instance a Sun 7-KP-SE-200 which has:
Voc 36.0v
Isc 7.20a
Vmp 28.69
Imp 6.97

Or what should I look for to minimize the Specs?
What happens if I add 4 Panels to make up the 24 max?
whitegp
Member
 
Posts: 6
Joined: Fri Feb 03, 2012 10:00 am

Re: one more panel

Postby petertearai on Sun Feb 05, 2012 1:45 am

4 would mean 148 volts oc . With cold conditions that is too high,so I think you will need to stay with 3 in series .
Regards Peter
1220 pv. fm80. 4times rolls 450 ah 12 volts. victron battery monitor. xantrex 1800ps inverter
petertearai
OutBack Guru
 
Posts: 189
Joined: Fri Aug 06, 2010 4:35 pm
Location: NewZealand North Island
My RE system: 1210 watt pv, fm80, xantrex ps1800i. Rolls s600 times 4 12 volt system victron battery moniter.

Re: one more panel

Postby Isabelle on Sat Oct 20, 2012 12:53 am

petertearai wrote:4 would mean 148 volts oc . With cold conditions that is too high,so I think you will need to stay with 3 in series .
Regards Peter


I agree with you guy.. Same answer from my side..
Isabelle
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Joined: Sat Oct 20, 2012 12:47 am
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