Kerala is known for its heavy monsoon season, spanning from June to September. Many prospective clients ask us: *Do solar panels work in rain?* and *How do we protect them?* Here is what you need to know to ensure optimal performance during wet months.
Do Panels Generate Power in the Rain?
Yes, solar panels do not need direct bright sunlight to work. They can absorb diffused light through clouds. While generation drops to about 10-25% of peak capacity during highly overcast days, you will still get significant power.
Essential Monsoon Maintenance Tips:
- 1. Check Lightning Surge Protectors (SPD): Kerala monsoons bring intense lightning. Ensure your solar DC/AC distribution boxes have fully operational SPDs and that your earthing system resistance is checked and under 5 ohms.
- 2. Trim Overhanging Tree Branches: Monsoon winds can cause wet leaves and branches to cast shadows on panels, drastically reducing output. Ensure all nearby trees are trimmed back.
- 3. Inspect Panel Tilts: Solar panels are installed at a tilt (typically 10-15 degrees in Kerala) to allow rain to naturally wash away dust. Before the monsoons start, verify that no debris or moss is blocking the bottom edge of the panel frames.
- 4. Check Inverter Error Codes: Moisture ingress can cause leakage current errors (ground faults). Keep an eye on your inverter display or app. If you see isolation errors, contact us immediately to inspect the wiring seals.
