40 kW Solar Installation at Swastika Rice Mill by SolarLogix
SolarLogix successfully designed and executed a 40 kW commercial rooftop solar power plant for Swastika Rice Mill, located at Nalhati, Birbhum district, West Bengal.
The project was implemented to reduce commercial electricity expenses, improve energy reliability, and enable the rice mill to adopt clean and sustainable power, while ensuring safe grid-compliant operation and long-term performance.
This installation serves as a reference rooftop solar project for small-to-mid scale rice mills in West Bengal.
📍 Project Details
| Parameter | Details |
|---|---|
| Client Name | Swastika Rice Mill |
| Industry | Rice Mill / Food Processing Industry |
| Location | Nalhati, Birbhum, West Bengal |
| Installed Capacity | 40 kW Rooftop Solar Plant |
| Structure Type | TATA Power Certified Sheet Roof Mounting Structure (with RCC Rooftop) |
| Solar Modules | TATA Power Make Monoperc 400 Series Modules |
| Inverter Type | TATA Power Certified Solis String Inverter with MPPT |
| Grid Integration | Zero-Export Protection |
| Safety Systems | Conventional Lightning Arrester |
| Maintenance Access | 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 focus on operational safety, grid compliance, and reliability:
✔ Zero-Export device to prevent unintended grid export
✔ Conventional lightning arrester for surge protection
✔ Certified sheet-roof mounting structure with RCC rooftop support
✔ High-quality fasteners and foundation bolts for structural durability
✔ Remote monitoring system for real-time performance tracking
The design ensures safe operation, easy maintenance, and consistent generation.
⚡ Performance & Financial Impact
-
Specific Generation: ~1300 units per kW per year
-
Estimated Annual Generation: ~52,000 units
-
Applicable Grid Tariff: ₹8.5 / unit (commercial)
-
Estimated Annual Savings: ~₹4.4 lakh
-
Payback Period: ~3 to 4 years
-
System Life: 25+ years
The solar plant significantly reduces grid electricity consumption, delivering steady savings throughout its operational life.
🌱 Environmental Impact
This 40 kW rooftop solar installation contributes to:
🌍 ~830 tons of CO₂ emissions avoided
🌳 ~974 trees planted (equivalent)
🏭 ~412 tons of coal burn avoided
🚗 ~3.26 million km of petrol consumption offset
A positive step towards energy-efficient and sustainable rice milling operations.
