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Assumption
Value
Source/Context (edit as needed)
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Panel Technology (default)
TOPCon Mono (DCR preferred)
Common in 2025 residential installs
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Panel Price per Watt (INR)
26
Panel price range ~₹25–30/W (TOPCon/DCR)
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Inverter Price per kW (INR)
12000
5kW inverter ~₹48k ⇒ ~₹9.6/W; typical ₹20k–₹80k range by size/brand
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Mounting Structure per kW (INR)
5000
Structures ~₹4–6/W ⇒ ~₹4–6k/kW; varies by roof type
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Labor & Installation per kW (INR)
6500
Typical small rooftop labour ~₹6–8k per kW
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Soft Costs (% of direct costs)
7
Soft costs usually 5–10% (permits, EPC, transport, net meter)
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Residential Subsidy Slab (PM Surya Ghar)
₹30,000/kW up to 2kW; ₹18,000/kW for 2–3kW
PM Surya Ghar national slabs; state add-ons vary
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Residential Subsidy Cap (INR)
78000
Current national cap for ≥3kW
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Notes
Editable baseline as of 2025-11-04. Replace with vendor quotes/state policies.
Update for commercial/industrial (no central subsidy) & state programs
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