Residential rooftop solar for homes across Kolkata & West Bengal
A residential rooftop solar system converts sunlight falling on your roof into clean electricity — cutting your CESC / WBSEDCL bill from day one. HELIORA designs, supplies, installs and commissions 1 kW to 10 kW grid-tie systems for independent houses, duplexes and bungalows throughout Kolkata and West Bengal, backed by ALMM-approved, DCR-certified modules and a dedicated project coordinator for every home.
Sized for your home
2 kWp – 5 kWp single-phase systems engineered from your rooftop area, shading and monthly electricity bill.
Full subsidy handling
Complete PM Surya Ghar: Muft Bijli Yojana registration, documentation and CESC / WBSEDCL net-metering paperwork.
Premium components
Mono PERC ALMM-listed modules and branded inverters (e.g. Deye) with 25-year performance warranty.
Cut your electricity bill by up to 90%
- Reduce your CESC / WBSEDCL bill by using solar power by day and net-metering credits to offset the rest.
- No battery required for grid-tie systems — lower upfront cost, lower maintenance.
- Claim up to ₹78,000 government subsidy under PM Surya Ghar for a 3 kW+ residential system — see our PM Surya Ghar subsidy guide.
- Typical payback of ≈5.5 years and 25-year system life — see full pricing on our Solar Solutions & pricing page.
- Increase your property's value and protect against rising Kolkata electricity tariffs.
Our residential installation process
Free Site Survey
Rooftop evaluation, shadow analysis and monthly-bill assessment at your Kolkata / West Bengal home.
Customised Proposal
System sizing, generation estimate and subsidy calculation — see your instant estimate.
PM Surya Ghar Registration
We handle subsidy application and CESC / WBSEDCL net-metering documentation end-to-end.
Professional Installation
RCC / sheet-roof mounting by trained technicians following MNRE and BIS standards.
Inspection & Commissioning
Safety checks, DISCOM inspection and net-meter commissioning.
Monitoring & AMC Support
Real-time generation tracking and long-term after-sales support.
Residential solar installation across Kolkata & West Bengal
From central Kolkata to the suburbs and beyond, we install home rooftop solar throughout the state.
Kolkata: Bowbazar, Salt Lake / Bidhannagar, New Town, Behala, Gariahat, Jadavpur, Santoshpur, Dum Dum, Garia and all
surrounding zones.
West Bengal: Howrah, Hooghly, North & South 24 Parganas, Nadia, Paschim & Purba Medinipur
(including Ghatal), Bardhaman and beyond — see real installations on our projects page.
Residential rooftop solar — common questions
How much does a residential solar system cost in Kolkata?
A typical 3 kW on-grid home system costs around ₹2,37,402 including GST, dropping to roughly ₹1,59,402 net after the ₹78,000 PM Surya Ghar subsidy. See the full pricing table.
What subsidy can I get for home solar in West Bengal?
Under PM Surya Ghar: Muft Bijli Yojana, residential households can claim up to ₹78,000 for systems of 3 kW and above. Full details on our subsidy page.
How long does installation take?
Most residential rooftop systems in Kolkata & West Bengal are installed and commissioned within 2–4 weeks of site survey, subject to DISCOM approval timelines.
Do I need a battery?
No — our standard grid-tie systems use CESC / WBSEDCL net metering instead of batteries, keeping upfront and maintenance costs low.