312kW Solar Installation at Nirakara Projects by SolarLogix
SolarLogix successfully designed and executed a 312 kW industrial rooftop solar power plant for a flour mill / food processing unit located in Purulia district, West Bengal.
The project was implemented to handle high daytime industrial load, reduce heavy grid electricity costs, and minimise DG dependency, while ensuring safe grid-compliant operation, robust safety systems, and long-term operational reliability.
This installation stands as a reference large-capacity rooftop solar project for food processing industries in West Bengal.
📍 Project Details
| Parameter | Details |
|---|---|
| Client Name | Nirakara Projects |
| Industry | Food Processing / Flour Mill |
| Location | Purulia, West Bengal |
| Installed Capacity | 312 kW Rooftop Solar Plant |
| Structure Type | TATA Power Certified Sheet-Roof Mounting Structure |
| Solar Modules | TATA Power Certified Monoperc 400 Series Modules |
| Inverter Type | Solis / GoodWe String Inverters with MPPT |
| Grid Integration | Zero-Export Protection |
| Safety Systems | Conventional Lightning Arrester, SS304 Safety Line |
| Maintenance Access | GI Walkways (Purlin-to-Purlin) |
| Monitoring | Remote Monitoring with Live Performance Feed |
| Insurance | TATA AIG Comprehensive Solar Plant Insurance |
⚙️ Engineering & Safety Highlights
The system was engineered with a strong focus on industrial safety, reliability, and compliance:
✔ Zero-Export device to prevent unintended grid export
✔ Conventional lightning arrester for surge and lightning protection
✔ SS304 safety line with tensioner for rooftop personnel safety
✔ GI maintenance walkways (purlin-to-purlin) for safe long-term O&M
✔ Heavy-duty sheet-roof mounting structure suitable for large industrial rooftops
✔ Remote monitoring system for real-time performance tracking
The design ensures high uptime, safe maintenance, and long service life.
⚡ Performance & Financial Impact
-
Specific Generation: ~1300 units per kW per year
-
Estimated Annual Generation: ~4.05 million units
-
Applicable Grid Tariff: ₹8.5 / unit (industrial)
-
Estimated Annual Savings: ~₹3.4 crore
-
Payback Period: ~3 to 4 years
-
System Life: 25+ years
The solar plant significantly reduces grid electricity consumption and operating costs, delivering predictable long-term savings for the food processing operation.
🌱 Environmental Impact
This 312 kW rooftop solar installation contributes to:
🌍 ~6,472 tons of CO₂ emissions avoided
🌳 ~7,597 trees planted (equivalent)
🏭 ~3,210 tons of coal burn avoided
🚗 ~25.45 million km of petrol consumption offset
A major step towards sustainable and energy-efficient food processing operations.
