TOPCon vs Mono PERC Solar Panels in Gorakhpur: Efficiency & Cost
Compare TOPCon vs Mono PERC solar panel efficiency, price per watt in Gorakhpur, temperature coefficient loss in summer heat, and 30-year performance degradation.
Solar module technology has evolved rapidly from Mono PERC to N-Type TOPCon (Tunnel Oxide Passivated Contact) cells. Homeowners in Gorakhpur choosing solar modules for PM Surya Ghar subsidy often compare TOPCon and Mono PERC options.
In this technical breakdown, Solanova Energy compares efficiency, summer heat performance, and price differences.
Technical Comparison: TOPCon vs Mono PERC
Parameter | Mono PERC Modules | N-Type TOPCon Modules |
Cell Efficiency Range | 20.0% – 21.3% | 21.8% – 22.8%+ |
Temperature Coefficient | -0.35% / °C | -0.30% / °C (Loses 4-6% less power in summer heat) |
Annual Degradation | ~0.55% per year | ~0.40% per year |
Performance Warranty | 25 Years | 30 Years |
Price per Watt (Gorakhpur) | ₹27 – ₹33 / Watt | ₹30 – ₹35 / Watt |
Why TOPCon Performs Better in Gorakhpur Summers
During May and June, ambient temperatures in Gorakhpur cross 43°C, pushing rooftop panel surface temperatures above 60°C. TOPCon panels have a lower temperature derating coefficient, meaning they generate up to 5% more energy during peak hot summer days than standard Mono PERC panels.
Solanova Recommendation
For constrained rooftops requiring maximum generation per square foot, Solanova Energy recommends N-Type TOPCon DCR modules for long-term yields.
⚡ Get the latest solar technology! Contact Solanova Energy Gorakhpur for a TOPCon quote.