25kW Solar Installation at Luxmi Cosmetics by SolarLogix
SolarLogix successfully designed and executed a 25 kW commercial rooftop solar power plant for Luxmi Cosmetics, located at Tangra, Kolkata, West Bengal.
The project was implemented to reduce high commercial electricity costs, support daytime manufacturing loads, and enable the client to transition towards clean and sustainable energy, while ensuring safe grid-compliant operation and long-term system reliability.
This installation serves as a reference rooftop solar project for small-to-mid scale manufacturing units in Kolkata.
📍 Project Details
| Parameter | Details |
|---|---|
| Client Name | Luxmi Cosmetics |
| Industry | Cosmetics Manufacturing (Chemical Industry) |
| Location | Tangra, Kolkata, West Bengal |
| Installed Capacity | 25 kW Rooftop Solar Plant |
| Structure Type | TATA Power Certified RCC Ballast Mounting Structure |
| Solar Modules | TATA Power Make 300+ Series Modules |
| Inverter Type | TATA Power Certified Solis String Inverter with MPPT |
| Grid Integration | Zero-Export Protection |
| Safety Systems | Conventional Lightning Arrester |
| Maintenance Access | RCC Rooftop Access Provision |
| Monitoring | Remote Monitoring with Live Performance Feed |
| Insurance | TATA AIG Comprehensive Solar Plant Insurance |
⚙️ Engineering & Safety Highlights
The system was engineered with a strong emphasis on safety, grid compliance, and operational reliability:
✔ Zero-Export device to prevent unintended grid export
✔ Conventional lightning arrester for electrical surge protection
✔ RCC ballast mounting structure suitable for urban rooftops
✔ High-quality fasteners and foundation bolts for structural stability
✔ Remote monitoring system for real-time performance tracking
The design ensures safe operation, low maintenance, and consistent energy generation.
⚡ Performance & Financial Impact
-
Specific Generation: ~1300 units per kW per year
-
Estimated Annual Generation: ~32,500 units
-
Applicable Grid Tariff: ₹8.5 / unit (commercial)
-
Estimated Annual Savings: ~₹2.7 lakh
-
Payback Period: ~3 to 4 years
-
System Life: 25+ years
The solar plant significantly reduces grid electricity consumption, delivering steady and predictable savings over its lifetime.
🌱 Environmental Impact
This 25 kW rooftop solar installation contributes to:
🌍 ~519 tons of CO₂ emissions avoided
🌳 ~609 trees planted (equivalent)
🏭 ~257 tons of coal burn avoided
🚗 ~2.04 million km of petrol consumption offset
A meaningful step towards sustainable and eco-friendly manufacturing operations.
