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Project Duration: 2015 – 2020
Total Quantity: 12,000 sets
Installation Height: 9 meters
Lamp Power: 60W integrated LED solar light
Project Category: Road & Street Solar Lighting
Prepared by: Mr. Lin, Project Engineer
Date: December 2020
1. Project Overview
Between 2015 and 2020, Sunlurio’s engineering team completed a landmark solar street light project in Ghana, installing 12,000 sets of 150W integrated solar street lights across the Adenta Municipality.
The project covered key arterial routes including Oyarifa, Amrahia, and Frafraha Road, areas previously known for poor visibility and frequent accidents. The Adenta Municipal Assembly (AMA) initiated this project under Ghana’s Renewable Energy Development Plan, aiming to enhance nighttime safety and promote sustainable public lighting.
Before the installation, many residents avoided walking after dark, and street vendors closed early. Today, the same roads remain bright and safe — a symbol of Ghana’s commitment to solar lighting for roads and streets.
→ This section introduces the project background and the positive transformation in Adenta’s public lighting network.
2. Client Challenges and Site Conditions
2.1 The Situation Before Installation
Prior to the project, Adenta faced several critical issues:
- Frequent grid outages, leaving roads dark for days.
- High maintenance cost of sodium lamps powered by the unstable grid.
- Corrosion and flooding along road shoulders.
- Lack of trained technicians for electrical maintenance.
Residents often described how night travel felt unsafe. “We used to rush home before 7 PM,” said one shopkeeper near Oyarifa. “Now, our streets are bright — people feel secure again.”
2.2 Environmental Context
Located in the Greater Accra Region, Adenta experiences a tropical climate with high humidity and abundant sunlight.
- Average solar radiation: 5.2–5.7 kWh/m²/day
- Peak sunshine hours: 5.4 hours/day
- Temperature range: 25°C–34°C
- Annual rainfall: ~860 mm
These conditions made it ideal for integrated solar street lights 150W, provided that corrosion protection and proper drainage were incorporated.
→ Understanding the environmental context helped us optimize the solar and battery configuration for Ghana’s specific conditions.
3. System Design and Configuration
Each Sunlurio integrated solar street light was designed for autonomous, long-term operation under tropical conditions.
| Component | Specification |
|---|---|
| LED Lamp Power | 60W, high-efficiency LED (≥170 lm/W) |
| Solar Panel | 18V / 100W monocrystalline (21% efficiency) |
| Battery | LiFePO₄ 12.8V / 48Ah, >4000 cycles |
| Pole Height | 9 meters, hot-dip galvanized steel |
| Controller | Light sensor + timer + motion sensor |
| Waterproof Rating | IP66, corrosion-resistant coating (80 μm) |
| Operating Hours | ≥12 hours per night |
| System Autonomy | 3–4 consecutive cloudy days |
| Design Life | Structure ≥25 years; battery ≥8 years |
Lighting design followed EN13201 and Ghana Highway Authority standards:
- Average illuminance: ≥15 lux
- Uniformity coefficient: ≥0.36
- Pole spacing: 35 meters
- Lamp tilt angle: 10°
- Layout: single-sided along main roads, staggered at intersections
Each unit incorporated smart dimming technology (100% brightness for 6 hours, then 70%) to maximize battery efficiency.
→ Robust engineering and smart energy management ensured stable illumination with minimal maintenance.
4. Implementation Process
4.1 Project Execution and Phases
Our on-site teams worked side-by-side with local engineers to cast over 12,000 foundations across three major highways.
The entire project was divided into three stages:
| Phase | Period | Area Covered | Quantity Installed |
|---|---|---|---|
| I | 2015–2016 | Oyarifa Road & Madina Junction | 4,000 sets |
| II | 2017–2018 | Amrahia–Adenta Highway | 5,000 sets |
| III | 2019–2020 | Frafraha & Adjiriganor Zone | 3,000 sets |
Each phase included site preparation, pole erection, light installation, and full system commissioning.
Over 360 local workers participated, receiving regular technical training in solar installation and safety standards.
4.2 Field Challenges and Solutions
- Soil Erosion & Drainage: Increased pole foundation depth from 1.3 m to 1.8 m and added PVC drainage sleeves for water control.
- Logistics Delays: Established local warehouse in Adenta to manage just-in-time assembly during port congestion.
- Testing Protocol: Each 500-light batch underwent photometric and battery efficiency tests before handover.
Installation rate: 80–90 sets per day with 12 teams in rotation.
Safety performance: 0 recordable accidents during ~148,000 total man-hours.
→ Careful planning and local cooperation ensured smooth progress despite weather and logistics challenges.
5. Results and Impact
After completion in 2020, the solar street light project in Ghana achieved excellent operational performance.
| Indicator | Result |
|---|---|
| Average uptime | 99.4% |
| Fault rate | 0.6% |
| Average illuminance | 16.8 lux |
| Uniformity coefficient | 0.37 |
| Battery efficiency | 94.2% |
| Annual maintenance cost | USD 2.9 per set |
5.1 Energy and Environmental Benefits
- Zero grid dependency — 100% powered by renewable solar energy.
- Annual energy savings: 1.8 GWh.
- CO₂ reduction: 1,540 tons/year.
- Maintenance frequency: reduced by 40% compared with traditional grid systems.
5.2 Social and Economic Impact
Today, Adenta’s roads remain bright every night — a living symbol of Ghana’s green progress.
Small businesses now operate until midnight, and night markets have reappeared around Oyarifa and Amrahia junctions.
According to the Ghana National Road Safety Commission (GNRC), nighttime accidents dropped by 52% within the first year of operation.
→ This section highlights how reliable solar lighting enhanced both safety and local economic activity.
6. Maintenance and Monitoring System
Following commissioning, we established two maintenance hubs — one in Adenta and one in Oyarifa.
Each hub includes spare parts storage, diagnostic tools, and remote IoT monitoring systems.
Routine maintenance plan:
- Quarterly inspection of key corridors.
- 24-hour response time for reported issues.
- Spare part inventory rate: ≥7%.
- Monitoring coverage: 95% of total lights.
Over the first two years, no large-scale system failures occurred. Minor repairs (controller and sensor replacement) were resolved within 48 hours.
→ Continuous monitoring ensures long-term reliability and cost efficiency.
7. Engineer’s Reflection
As the project engineer, I’ve witnessed how technology reshapes daily life.
Working on this Sunlurio solar street light project in Ghana reminded me that lighting is more than infrastructure — it’s safety, dignity, and hope.
This project reaffirmed my belief that reliable lighting connects communities and accelerates progress toward a cleaner, more sustainable future.
→ Engineering success lies not only in data, but in the light it brings to people’s lives.
8. Future Outlook and Call to Action
Following the success in Adenta, the Ministry of Energy (Ghana) has recognized this initiative as a benchmark for other cities, including Tema, Kumasi, and Cape Coast.
Future upgrades will include smart control integration, real-time data analytics, and adaptive brightness control to align with Ghana’s Smart City Development Strategy.
If you are planning a similar solar lighting project in Africa or Asia,
contact our Sunlurio engineering team for a free design consultation — we’ll help you build reliable, sustainable lighting systems tailored to your environment.
9. Visuals and Internal Links
Suggested Image Files and Alt Texts:
ghana-solar-street-light-project.webp– alt="Solar Street Light in Adenta Ghana by Sunlurio"adenta-solar-street-light-installation.webp– alt="150W Integrated Solar Street Light in Ghana by Sunlurio"amrahia-road-solar-lighting.webp– alt="Road Solar Lighting Project in Ghana by Sunlurio"
Related Projects:
- Solar Street Light Project in Togo – 13,000 Sets along Lomé–Kpalimé Road
- High Mast Lighting System for Port of Dar es Salaam, Tanzania
- All-in-One Solar Street Lights Overview
Learn more about our All-in-One Solar Street Lights or explore High Mast Lighting Systems.
Prepared by:
Mr. Lin
Senior Project Engineer
Date: December 15, 2020
