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A Forum run by Enthusiasts of MidNite Solar

General Category => General Discussion => Topic started by: tecnodave on May 19, 2016, 10:04:32 PM

Title: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 19, 2016, 10:04:32 PM
Has anyone seen anything like this panel?

mobil solar energy corporation. Model number.   RA220-8-B

Don't have complete specs,  damaged label.    V.o.c.  10.55 v.     I.s.c. 30.49 a.   I.m.p.  27.77

(Edit). Calculated V.m.p.    8.8 volt

Going real cheap here. @.20/watt


David
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 19, 2016, 10:06:03 PM
One more pic.

David
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: Westbranch on May 19, 2016, 11:42:59 PM
Kind of opposite to todays' Hi V and low Amps way of making panels..
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 20, 2016, 12:13:44 AM
Never seen anything like this.....4 strings in one panel???

Mobil oil   Nuff said

Dave
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 20, 2016, 12:17:34 AM
Local guy wants to do a grid tie 10 kW system with these

Dave
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: Westbranch on May 20, 2016, 12:33:22 AM
what kind of GT inverter would he use?
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 20, 2016, 12:41:38 AM
I have no idea.....

I like off-grid

Dave
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: russ_drinkwater on May 26, 2016, 04:35:58 PM
Does he have 50-60 of them?
Use them as roof shingles!
Seriously they look similar to the early solarex panels we had in this country 30 years ago.
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: BioPower on May 26, 2016, 05:25:43 PM
Are you able to reconfigure the connections on the back and multiply the voltage by four and reduce the amps to a quarter?
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: russ_drinkwater on May 27, 2016, 05:08:48 PM
Without the genie smoke!?
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: tecnodave on May 27, 2016, 08:22:45 PM
It does look like that there are 4 strings in the panel. I have not seen them.  ML Solar in San Jose has a bunch of them.....much cheaper by the pallet.  Maybe les than $40.00 panel by pallet 32panels

I passed on them. Everything I have is 72 cell except my thin film CdTe panels


www.mlsolar.com           (408) 583.8101       1190 Dell Ave, Campbell CA 95008

They buy out manufacturers overruns and such. I have dealt with them

David
Title: Re: 245 watt 10.5 v.oc. 27.7 I.sc. 216 cell panels
Post by: russ_drinkwater on May 28, 2016, 05:40:42 PM
There are panel bargains out there to be had.
I picked up 8 x 45.2 (approx) volt OC panels for a mate out of brisbane for $600 the lot. Made in china, but as new and no damage. They will be good for his 24 volt standalone system build.
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