Technical

Commissioning

Commissioning is the final stage of installation where systems are tested, configured, and verified to work correctly before handover to the customer.

What is Commissioning?

Commissioning is the process of testing, adjusting, and verifying that an installed system operates correctly and safely. It's the final step before handing over to the customer.

Solar PV Commissioning

Solar commissioning includes:

CheckPurpose
Visual inspectionVerify correct installation
Electrical testingConfirm safe connections
Inverter setupConfigure system parameters
Generation testVerify power production
Monitoring setupEnable remote tracking

Commissioning and DNO

For DNO compliance:

  • G98 systems - notify DNO within 28 days of commissioning
  • G99 systems - send commissioning confirmation to DNO
  • Document commissioning date for compliance records

MCS Requirements

MCS-certified installations require:

  • Completed commissioning checklist
  • Test results recorded
  • System performance verified
  • Customer demonstration provided

Commissioning Documentation

The commissioning record should include:

  • Date and time of commissioning
  • Installer details and qualifications
  • Test results and measurements
  • System configuration settings
  • Any issues identified and resolved

SIP and Commissioning

For SIP-related work:

  • Re-energisation is a commissioning activity
  • Market messages confirm commissioning completion
  • Timestamps are critical for compliance