1 - What is the AC output rating of the PV inverter?
2 - What is the size of the feeder conductors?
3 - Does the sub panel at the garage have a main breaker of it's own?
4 - Does your AHJ or utility require anAC disconnect or not?
Mark Frye
Berkeley Solar Electric Systems
On 4/11/2012 7:09 AM, Aladdin Solar wrote:
Wrenches:
There's probably an obvious answer but please help me think this
through. Here's the situation--comes up all the time: The PV array and
grid-tied inverter will be located on a detached building (garage or
pole barn, etc.). The existing power to the building is a 240V 60A
subpanel connected to the main panelboard at the house or main
building via buried cable. If we obey buss bar loading and wire
sizing, etc, is there any reason why we can't or shouldn't install the
small grid tied PV system and tie it into the garage subpanel instead
of trenching new lines back to the house and hit the main panel
there? One hitch I see is that if we want a PV system AC disconnect
near the main meter, the whole garage would end up on that. Have
I overlooked an NEC or inverter requirement?
Thanks for your comments.
Charlie Pickard
Aladdin Solar
__________ Information from ESET NOD32 Antivirus, version of virus
signature database 7045 (20120411) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
_______________________________________________
List sponsored by Home Power magazine
List Address: RE-wrenches@lists.re-wrenches.org
Options& settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules& etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
_______________________________________________
List sponsored by Home Power magazine
List Address: RE-wrenches@lists.re-wrenches.org
Options & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
