Rooftop Solar Pricing in West Bengal: Realistic Cost Breakdown
Commercial Discipline • M.T. Solar by MTC Pricing Analysis
In rooftop solar, an unusually low quote usually hides corners cut on structural steel thickness, cheap non-ALMM solar modules, sub-standard earthing, or absent after-sales support. At M.T. Solar by MTC, we believe in complete commercial discipline.
What Makes Up the Cost of a Solar System?
A reliable turnkey rooftop system comprises several distinct components that should never be treated as zero or free:
- Solar Modules (~50–55% of cost): High-grade Mono-PERC / TOPCon cells evaluated from Tier-1 manufacturers (Tier-1 ALMM Approved).
- Solar Inverter (~18–22% of cost): Advanced grid-tied inverter with dual MPPT tracking and remote Wi-Fi data monitoring.
- Mounting Structures (~10–12% of cost): Hot-dip galvanized mounting structures with heavy gauge steel engineered for coastal storms.
- Balance of System (~8–10% of cost): DC cables, AC distribution box, Type-II surge protection devices, and dual chemical earthing.
- Installation, WBSEDCL Meter Coordination & GST: Professional labour, inspection fees, and government portal handling.
Residential Cost Benchmark (After PM Surya Ghar Subsidy)
| System Size | Turnkey Cost (Approx) | PM Surya Subsidy | Net Customer Cost |
|---|---|---|---|
| 2 kW System | ₹ 1,35,000 – ₹ 1,45,000 | ₹ 60,000 | ₹ 75,000 – ₹ 85,000 |
| 3 kW System | ₹ 1,95,000 – ₹ 2,10,000 | ₹ 78,000 | ₹ 1,17,000 – ₹ 1,32,000 |
| 5 kW System | ₹ 3,10,000 – ₹ 3,30,000 | ₹ 78,000 | ₹ 2,32,000 – ₹ 2,52,000 |
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