Solar Street Light Maintenance Guide for African Conditions

Maintenance Schedule Overview

Task	Frequency	Sahel/Desert	Tropical/Coastal
Solar panel cleaning	Quarterly	Monthly	Quarterly
LED output inspection	Annually	Annually	Annually
Battery voltage check	Annually	Annually	Annually
Controller settings check	Annually	Annually	Annually
Structural inspection	Annually	Annually	Bi-annually
Battery capacity test	Every 2 years	Every 2 years	Every 2 years

Solar Panel Cleaning

Dust accumulation on solar panels is the single biggest cause of underperformance in African solar street lights. In the Sahel region, dust can reduce panel output by 25–40% within 30 days if not cleaned. Use a soft cloth or sponge with clean water — never abrasive materials that can scratch the anti-reflective coating. For large installations, consider a water-fed pole cleaning system.

Battery Health Monitoring

LiFePO4 batteries in solar street lights should maintain at least 80% of rated capacity after 2,000 cycles (approximately 5–6 years of daily use). A simple capacity test involves fully charging the battery, then measuring the discharge time at a known load. If capacity drops below 70% of rated, replacement is recommended before the next rainy season to ensure adequate autonomy.