Use this solar commissioning and handover checklist to document equipment, protection, settings, monitoring, backup circuits, and unresolved issues before accepting a system. For the next planning step, see solar cable sizing and voltage-drop guide.
What commissioning should prove
Commissioning should show that the installed equipment matches the approved design, protective devices are identified, settings are documented, monitoring works, and the intended load behavior has been reviewed. It is not merely the moment an inverter display turns on. For a personalized system check, use the CalcSolarPH solar calculator.
Create an equipment register
Record manufacturer, model, serial number, firmware where relevant, rated values, installation location, and warranty contact for every major component. Photograph labels before they become difficult to reach. The register should match the quotation, invoice, datasheet, and final diagram. For the next planning step, see solar wiring architecture guide.
Document the protection schedule
List each fuse, breaker, isolator, disconnect, surge protective device, and protective-earth or grounding arrangement that the designer has specified. Record ratings and locations. Ask the qualified installer to explain which device isolates which energy source and what must be isolated before service.
Review operating modes
Confirm what happens during normal grid operation, a grid outage, low battery, high load, communication loss, and a fault. Identify the backed-up circuits and the loads intentionally excluded. Ask how the system prevents unintended backfeed and how occupants should reduce load during an outage. For the next planning step, see solar backfeed and transfer-switch safety guide.
Collect monitoring and maintenance instructions
The handover should include monitoring login transfer, alert meanings, normal status indicators, maintenance intervals, cleaning boundaries, emergency contacts, and a procedure for reporting abnormal heat, smell, smoke, swelling, water intrusion, or repeated trips. Never store passwords in a publicly accessible document.
Record unresolved items
Do not hide punch-list items. Record missing labels, pending permits, incomplete monitoring, open warranty questions, roof repairs, or tests that could not be completed. Assign an owner and a target date. A clear exception list is more valuable than a certificate that suggests everything is complete when it is not.
A practical DIY evidence log
Keep a dated record of assumptions, measurements made from a safe location, photos, model numbers, weather, alarms, and questions for the installer. Good records make troubleshooting faster and reduce the temptation to experiment with energized equipment.
Frequently Asked Questions
What documents should a homeowner receive?
At minimum, request the final diagram, equipment register, manuals, warranty records, protection schedule, commissioning results, monitoring access, and maintenance instructions.
Should I accept a system without monitoring?
Ask the installer to document the missing function and resolution date. Monitoring is not the only proof of operation, but missing access makes fault detection and warranty support harder. For the next planning step, see typhoon-proof solar installation guide.
Who should perform electrical commissioning?
A qualified professional with the appropriate instruments and procedures should perform tests involving energized equipment, protection, grounding, transfer, and utility-related connections.
Use the CalcSolarPH calculator for an initial estimate, then compare the result with the solar products catalog and have the final electrical design reviewed by a qualified professional.
