Solar PV Array Audit V2.0

• Work Order No

• Audit Title

• Site

• Conducted on

  Date

• Prepared by

• Location
  Address

Array

• Size of Array (Kwp)

Roof access (info and pics required especially all man safe equipment and tags)

• Are there any roof access issues?

  Yes

  No

• Comments

• Is the array clean

  Yes

  Mostly

  No

• Comments (issues can be reported in the operation section)

• Photograph required

  Media

• Photograph required

  Yes

  Mostly

  No

• Inclination (S if solyndra)

• Orientation

• Satellite image

  Media

• Weather and irradiance

• Number of inverters

• Module type

  Solyndra

  Crystalline

  Mixed

PV Distribution Board

• Is the meter operating

  Yes

  No

  N/A

• Does the meter display a fault code

  Yes

  No

• Error

• Meter reading

• Coax and aerial not damaged and in good position

  Yes

  No

  Rectified

• Is there a separate G59 Relay

  Yes

  No

  N/A

• Does the relay operate when the AC side is interrupted

  Yes

  No

  N/A

• Does the relay automatically reset after the AC is reinstated (min 60s wait)

  Yes

  No

  N/A

• DB and MCBs suitable and labelled

  Yes

  No

  Rectified

• Supply main switch labelled

  Yes

  No

  Rectified

• Array diagram and location label

  Yes

  No

  Unsuitable

• 'WARNING: DUAL SUPPLY' label

  Yes

  No

  Rectified

• PV label attached to main switchboard

  Yes

  No

  Rectified

• DB supply protection / main supply rating

• Inverter mcb values

Inverters

• PV inverters identified and labelled

  Yes

  No

  Rectified

• Strings identified, labelled or mapped

  Yes

  No

  Rectified

• Location of inverters

  Internal

  External

• Comments

Inverter

• Suitable Inverter location, fixing, UV and IP rating

  Yes

  No

  N/A

• AC isolator correctly rated, installed and labelled

  Yes

  No

  Rectified

• G59 operation, turn off AC isolator off, does the inverter react correctly

  Yes

  No

  N/A

• DC isolator labelled 'PV ARRAY DC ISOLATOR'

  Yes

  No

  Rectified

• Inverter Make

• Photo of inverter data plate

  Media

• Input 1 production reading ( P :)

• Input 2 production reading ( P :)

• Total production ( energy total to date )

• Total number of strings

• Is inverter working correctly

  Yes

  No

  N/A

• Fault log

  Media

• Photo of PV module data plate

  Media

• Module mounting system correct and secure

  Yes

  No

  Rectified

• Is the Earth bonding correctly installed

  Yes

  No

  Rectified

• Junction boxes connectors and isolators labelled WARNING DC VOLTAGE DO NOT DISCONNECT UNDER LOAD

  Yes

  No

  Rectified

• Are the combiner boxes suitably mounted

  Yes

  No

• Photograph

  Media

• Are the combiner boxes suitably rated for their environment and location

  Yes

  No

• General condition including UV and weather degradation

  Yes

  No

• Is the combiner box water tight

  Yes

  No

• Have you tightened all of the cable terminals in the collector boxes

  Yes

  No

• Are there any signs of scorching or excessive heat in the combiner boxes

  Yes

  No

• Details

• Photograph

  Media

• Are you able to combiner box screws useable

  Yes

  No

• Photograph

  Media

• Have you tightened all cable terminals in the DC Isolators

  Yes

  No

• Reason

• Are there any signs of scorching or excessive heat in the DC isolators

  Yes

  No

• Details

• Photograph

  Media

STRINGS

• String Fuses Checked

  Yes

  No

  N/A

• DC connectors same type and manufacturer

  Yes

  No

  Rectified

• DC cable management (zip ties, cable tray, etc)

  Yes

  No

  Rectified

• PV array cable protected against external influences

  Yes

  No

  Rectified
String

• String ID (Inverter.Input.String ie 111)

• Voltage (Voc)

• Number of modules in series (if known)

• Was the array left functioning correctly on leaving the site

  fully functional

  partially functional

  not operating

• Comments

• Were any faults found and rectified

  Yes

  No
Faults found and rectified

• Photo

  Media

• Fault description

• Are there any other issues to report including any dilapidation

  Yes

  No
Issue

• Photo

  Media

• Description of issue

• Have you made safe any issues that have been highlighted

  Yes

  No

  N/A

• Please make safe in accordance with current electrical regulations

• Would access equipment or a crane be required to get replacement invertors into location and to be installed

  Yes

  No

• Details

• Photographs

  Media

• Please add a photograph showing the condition and cleanliness of the panels