Is Your Solar System Healthy? A Monthly Monitoring Checklist
A solar system should be monitored as an operating asset, not forgotten after commissioning. You do not need to watch the app every hour, but a consistent monthly review can reveal alerts, shading, communication faults or a change in household demand.
Check status before checking savings
Confirm that the inverter and monitoring gateway are online and that no persistent warning is displayed. A missing app graph can be a communication issue rather than a generation failure, so compare the inverter status and meter information before drawing conclusions.
Compare trends, not one perfect day
Weather changes daily. Compare monthly production with the same season, the proposal range and recent operating conditions. A gradual decline can come from new shade, dirt, equipment problems or downtime. A sudden zero reading requires quicker investigation.
Read generation together with the TNB bill
Total generation alone does not show how much value the system produced. Review self-consumption, export and grid import where the monitoring setup supports them. Higher bills can result from higher household use even when solar output is normal.
Monthly owner checklist
- Inverter and gateway online with no persistent alert.
- Generation broadly consistent with season and recent weather.
- No new tree, building or object causing significant shade.
- Visible cables, isolators and equipment remain secure and undamaged.
- TNB imports and household use are understood.
- Service cases and commissioning records are stored.
Do not climb onto the roof or open electrical equipment. Use qualified service personnel when inspection is required. If performance is unclear, send HOMI the recent monitoring screenshots and TNB bills for a structured review.
Frequently asked questions
How often should I check solar monitoring?
A brief monthly review and a prompt check after a persistent alert or unusual bill is a practical starting point.
Does a higher TNB bill mean the solar system failed?
Not necessarily. Household use, tariff items, weather and operating hours may have changed. Compare generation, import and usage together.
Should I clean panels myself?
Avoid unsafe roof access. Cleaning needs depend on site conditions and should use a safe method by suitable personnel.
This article reflects official information checked on 1 August 2026 and is general guidance. Programme rules, tariff treatment, approval and actual savings remain subject to the latest PETRA, SEDA, Energy Commission and TNB requirements plus the property bill, roof and usage pattern.
Official sources
Want HOMI to review your TNB bill?
Send your usage pattern and HOMI can estimate whether Solar ATAP makes sense for your home or business.
Review My Solar Performance