Solar Maintenance in Singapore: Cleaning, Bird Droppings, Annual Checks, Inverter Replacement Cost

Panel Cleaning

Every 6 months (quarterly near trees/birds). Soiling reduces output by 2–5% over 6 months, 8–15% over a year. For a 20 kWp system: S$1,000/yr foregone value from 10% soiling.

Bird Droppings: Hotspot Risk

Localised shading creates hotspots exceeding 100°C — accelerating degradation. Rezeca recommends bird deterrent strips for properties near mature trees.

Inverter Replacement Budget

Rezeca includes 2 years complimentary maintenance with every installation.