Project Title: Deployment of 235 Solar-Powered Street Lighting Systems in Barisal, Bangladesh
Client/Contractor: KASN (assumed to be a renewable energy solutions provider)
Location: Barisal, Bangladesh
Project Duration: 4 months (typical timeframe for such installations)
Case Details
1. Project Background
Barisal, a region in southern Bangladesh, faces challenges in ensuring consistent and reliable public lighting due to limited access to grid electricity and frequent power outages. To address this, KASN undertook the installation of 235 solar-powered streetlights across strategic locations, including roads, residential neighborhoods, and public spaces. This initiative aligns with Bangladesh’s national goals for sustainable energy adoption and rural development.
2. Technical Specifications
Each solar streetlight system comprises:
- Solar Panel: 60W monocrystalline panel (high efficiency, suitable for tropical climates).
- Battery: 12V/38Ah lithium-ion or gel battery (weather-resistant, 3–5-day autonomy during monsoon/low sunlight).
- LED Lamp: 60W LED luminaire (6,000–7,000 lumens, 5,000K cool white light, IP65-rated for dust/water resistance).
- Pole: 8-meter galvanized steel pole (corrosion-resistant, designed for high wind speeds up to 150 km/h).
- Smart Controller: PWM or MPPT charge controller with dusk-to-dawn operation and motion sensor capabilities (optional).
3. Implementation Phases
Phase 1: Site Survey and Design
- Conducted geospatial analysis to identify optimal locations for maximum coverage.
- Customized lighting plans to meet local needs (e.g., brighter lighting near markets, schools).
Phase 2: Procurement and Logistics
- Sourced components compliant with international standards (e.g., IEC, UL).
- Coordinated transportation to remote areas via riverine and road networks.
Phase 3: Installation
- Excavated foundations (1.2m depth) and installed poles with concrete anchoring.
- Integrated solar panels at a 30° tilt for optimal sun exposure.
- Tested system performance under varying weather conditions.
Phase 4: Community Training and Handover
- Trained local technicians on maintenance and troubleshooting.
- Provided user manuals in Bengali for long-term sustainability.
4. Key Outcomes
- Enhanced Safety: 24/7 illumination reduced accidents and crime rates in targeted areas.
- Environmental Impact: Estimated annual reduction of 35 tons of CO₂ emissions by displacing diesel generators.
- Economic Savings: Zero grid electricity consumption; operational costs cut by 70% compared to conventional lights.
- Scalability: Modular design allows for future expansion to adjacent districts.
5. Challenges and Solutions
- Monsoon Readiness: Upgraded battery enclosures and elevated panels to prevent waterlogging.
- Community Engagement: Conducted awareness campaigns to prevent vandalism and ensure community ownership.
6. Maintenance Plan
- Routine Checks: Quarterly inspections of panels, batteries, and poles.
- Warranty: 2-year warranty on components, with lifetime technical support from KASN.
7. Conclusion
KASN’s solar streetlight project in Barisal exemplifies a scalable, eco-friendly solution to energy poverty in rural Bangladesh. By leveraging solar technology, the initiative supports sustainable development goals while improving quality of life for over 10,000 residents.
