Connect with verified solar vendors, check rooftop subsidies, and get the best pricing for solar installation in Kolkata, West Bengal.
💡 CESC handles net metering for Kolkata consumers under WBERC regulations.
Kolkata is experiencing rapid solar adoption due to favorable climate conditions and strong government incentives. The PM Surya Ghar Muft Bijli Yojana makes it more affordable than ever to switch to rooftop solar. Most 2–3 BHK homes benefit from a 3–5 kW solar system, which can reduce electricity bills by ₹2,000–3,000 monthly and pay for itself in just 3–4 years.
With net metering support from CESC (Calcutta Electric Supply Corporation), excess solar energy you generate gets credited back to your account, maximizing your savings year-round. Current tariffs of ₹6.5–9/unit make solar highly cost-effective in Kolkata.
Understanding local climate factors helps optimize your solar system size and expected returns.
5.1 hours/day average — Good solar irradiance year-round, ideal for residential and commercial rooftop installations.
1,400–1,700 units/kW/year — A 3kW system generates 4,200–5,100 units annually, covering 80–100% of average household consumption in Kolkata.
June–September — Generation drops 30–40% during monsoon but summer months more than compensate. Annual production remains strong in West Bengal.
₹6.5–9/unit via CESC (Calcutta Electric Supply Corporation). Higher rates improve ROI. Net metering ensures fair credit for surplus solar energy.
A typical 3kW rooftop solar system includes panels, inverter, mounting structure, wiring, and labour. Here's what to expect:
Solar Panels (3kW): ₹75,000–95,000 (₹25–32/watt, DCR panels)
Inverter (3kW on-grid string): ₹25,000–40,000
Mounting Structure & Wiring: ₹20,000–30,000
Labour & Installation: ₹15,000–25,000
Other (net meter, earthing, permits): ₹10,000–20,000
Total Cost: ₹1,60,000–₹2,10,000
After ₹78,000 Subsidy: ₹82,000–1,32,000
Want a figure for your own home? Enter your monthly bill in our free solar calculator to see the right system size, cost after subsidy and payback period for Kolkata.
Typical timeline from decision to power generation: 45–60 days.
Free on-site evaluation of roof capacity, shade analysis, and electrical loads. Takes 30–60 mins.
Receive 3D design, detailed cost breakdown, and 25-year savings projection. Compare 2–3 quotes.
Installer files net metering application with CESC (Calcutta Electric Supply Corporation). Approval: 30–45 days. No cost to you.
Physical installation takes 3–5 days for residential systems. Final testing and grid sync included.
After installation, apply for PM Surya Ghar subsidy. Funds transferred within 60–90 days.
Start generating electricity. Monthly savings appear on your CESC (Calcutta Electric Supply Corporation) bill immediately.
CESC handles net metering for Kolkata consumers under WBERC regulations.
| Policy Feature | Details for Kolkata |
|---|---|
| DISCOM | CESC (Calcutta Electric Supply Corporation) |
| Electricity Tariff | ₹6.5–9/unit (domestic) |
| Maximum System Size | Up to 10 kW (residential). No upper limit for commercial. |
| Credit Period | Monthly rollover. Unused credits reset annually. |
| Connection Fee | Free. DISCOM provides net meter installation at no cost. |
| Approval Time | 30–45 days from application with complete documents. |
Top-rated solar installation companies serving the Kolkata region.
SOLAR SOLUTION TECH based in Kolkata, West Bengal, has been a reliable player in the renewable energy sector for over five years. With extensive expertise in the solar energy market, the company offers comprehensive, hassle-free turnkey EPC projects along with professional installation and commissioning services. Beyond standard solar power solutions, their technical scope extends to micro wind turbines, biogas plants, waste management systems, and battery energy storage systems, making them a versatile partner for diverse clean energy requirements. To ensure long-term system reliability and optimal performance, SOLAR SOLUTION TECH also provides dedicated operation and maintenance services for all implemented projects. Commercial, industrial, and residential clients across West Bengal rely on their structured approach to renewable energy integration. By managing every stage of the project lifecycle from initial setup to ongoing maintenance, the company delivers dependable technical execution for modern energy infrastructure.
View Details & Get QuoteSolar adoption in Kolkata is growing rapidly. With the PM Surya Ghar Muft Bijli Yojana, homeowners can significantly reduce electricity bills. The average system installed is 3kW to 5kW — sufficient for a standard 2–3 BHK household. CESC (Calcutta Electric Supply Corporation) actively supports net-metering, making this the perfect time to go green.
With electricity rates at ₹6.5–9/unit and 5.1 peak sun hours daily, Kolkata homeowners achieve payback in 3–4 years — among the best ROI for solar in West Bengal.
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