Rooftop Solar in Kolkata — 2026 Complete Guide
Kolkata has two electricity distributors — CESC for the city and WBSEDCL for suburbs. Both now support net metering. West Bengal's solar adoption is growing rapidly with new state policies in 2025.
Solar Cost in Kolkata
| System | Daily Units | Total Cost | After Subsidy |
|---|---|---|---|
| 2 kW | 7–9 | ₹1.1–1.35 lakh | ₹50,000–75,000 |
| 3 kW | 10–13 | ₹1.6–2.0 lakh | ₹82,000–1.22 lakh |
| 5 kW | 17–22 | ₹2.6–3.3 lakh | ₹1.82–2.52 lakh |
Note: Kolkata has fewer sunny hours than western/southern India, hence slightly lower daily generation.
CESC Net Metering (Kolkata City)
- Apply via cescgroup.com
- Feed-in tariff: ₹2.50–3.50/unit
- Processing: 30–45 days
WBSEDCL Net Metering (Kolkata Suburbs)
- Apply via wbsedcl.in
- Feed-in tariff: ₹2.00–3.00/unit
- Processing: 21–30 days
West Bengal Solar Subsidy
- Central PM Surya Ghar: up to ₹78,000
- West Bengal state scheme: ₹10,000–20,000 for below-poverty-line
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