1. No category

SAMPLE PV: One-line Diagram (Residential/Small Commercial) - Not a “Line-Side” Connection
##A
Dedicated PV AC
Combiner Panel
###A, ###VAC
##A
##A
##A
DC Combiner Panel 1
###A, ###VDC
Existing Utility-Owned
Service Transformer
##A
XYZ Co. Model A Inverter
##kWAC, ###VAC
##kVA
##A
##A
Existing Utility Revenue
Meter Socket
(New Net Meter)
Customer-Owned PV
Production Meter
###A, ###VAC
##A
DC Combiner Panel 2
###A, ###VDC
###A
XYZ Co. Model B Inverter
##kWAC, ###VAC
Existing Main Breaker
(Service Main Disconnect)
Exterior AC Utility
Disconnect Switch
###A, ###VAC
(Located Adjacent to
Utility Meter)
##A
##A
Existing Main
Distribution Panel
###A, ###VAC
##A
DC Combiner Panel 3
###A, ###VDC
XYZ Co. Model C Inverter
##kWAC, ###VAC
Notes: (As Appropriate)
Customer Information
Notes about photovoltaic modules, ratings, and string sizes.
Customer Name
Notes about wire sizes, conduits, equipment grounding, equipment ratings, and locations.
Project Address
Notes about language for permanent plaques.
Other Notes.
Revision Information
Date of Revision 1
Date of Revision 2
© 2013 National Grid - This sample one-line diagram is only a possible representation of a typical solar photovoltaic generating system connected to the National Grid electric power system.
Engineering Information
Engineer Name
Contact Information
PE STAMP
Date of most recent stamp