MacDonald
Sent: Monday, April 19, 2010 7:43 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
Im sorry, I meant to write “11 modules per string” below..
Been a long day..
From: Jim MacDonald
Sent: Monday, April 19, 2010 7:41 PM
To: RE
wrote:
From: Jim MacDonald j...@solaresystems.com
Subject: Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Date: Monday, April 19, 2010, 5:40 PM
SB8000US only good for 480 Vac, we’re tying in at 208.
11
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Darryl Thayer
Sent: Monday, April 19, 2010 5:58 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
The temperature
For a straight grid-tie system@ 10 degree tilt, 180 azimuth, zero/little shade,
NYC avg 4.29 kWh/m²/day.
Feed an SMA7000 with (3) strings of 11 Suntech STP275's [9.075 kWdc]
Or
Do strings of 10, so itd be 8.250 kWdc into the 7 kWac inverter.
Strings of 11= 491.7 Voc; 386 Vmp
Strings of 10= 447
Is using the SMA SB 8000US out of the question?
http://www.sma-america.com/en/products/solar-inverters/sunny-boy/sunny-boy-5
000us-6000us-7000us-8000us.html
On 4/19/10 3:37 PM, Jim MacDonald j...@solaresystems.com wrote:
For a straight grid-tie system@ 10 degree tilt, 180 azimuth, zero/little
...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jim
MacDonald
Sent: Monday, April 19, 2010 2:37 PM
To: RE-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
For a straight grid-tie system@ 10
heard
from a sunny boy rep that it is OK to over power by 1.25%
darryl
--- On Mon, 4/19/10, Dana d...@solarwork.com wrote:
From: Dana d...@solarwork.com
Subject: Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org
Date
:58 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
The temperature correction is the concern. I have heard lots of stories of
inverters dieing when it gets to cold. Look in the code book 690.7 at the
temperature correction table. Go
Im sorry, I meant to write “11 modules per string” below..
Been a long day..
From: Jim MacDonald
Sent: Monday, April 19, 2010 7:41 PM
To: RE-wrenches
Cc: Jason Szrom
Subject: RE: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per
string?
SB8000US only good for 480 Vac, we’re tying
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