Solar Panels in Kolkata 2026: Price, Subsidy, Installation & Best Solar System for Home
SolarLogix is an Authorised EPC Channel Partner of Tata Power Solar, serving homes and businesses across Kolkata and the wider metropolitan area — including Howrah, Hooghly, North 24 Parganas, and South 24 Parganas. Below is a complete, current breakdown of 2026 rooftop solar pricing, the subsidy situation specific to Kolkata’s split DISCOM structure, the installation process, and which system size actually fits different Kolkata households.
Why Kolkata Homes Are Turning to Solar
Kolkata’s electricity tariffs are among the higher slab structures in West Bengal — CESC’s domestic rates climb through several slabs and reach roughly ₹8.9–9.2 per unit at the top band, while even WBSEDCL-served parts of the metro area reach around ₹8/unit for higher consumption. Combined with hot, humid summers that push AC-driven consumption well into the steepest slabs, many Kolkata households are paying a disproportionate share of their bill at the highest per-unit rate — exactly the portion solar offsets most effectively.
Kolkata’s daily solar irradiance (roughly 4.5–5 kWh/m²) is more than sufficient for viable rooftop generation, and dense urban housing stock means correctly sizing a system to available roof space — not just theoretical consumption — matters more here than in less space-constrained districts.
Important: Kolkata’s DISCOM Situation Affects Your Subsidy
Unlike Siliguri and most of West Bengal, where WBSEDCL is the sole distributor, Kolkata city, Howrah, and Hooghly are served primarily by CESC (Calcutta Electric Supply Corporation), while North 24 Parganas, South 24 Parganas, and other outer metro areas fall under WBSEDCL. This matters because:
- PM Surya Ghar’s central subsidy (up to ₹78,000) is processed through WBSEDCL’s MNRE registration. WBSEDCL-connected households in the Kolkata metro area (parts of North/South 24 Parganas and similar areas) can apply through the standard national portal process.
- CESC consumers currently have a separate, less standardized process. CESC’s subsidy eligibility status has been inconsistent across sources through 2026, and CESC consumers should confirm their specific eligibility directly with CESC before assuming the ₹78,000 subsidy applies. This is worth checking before you budget a project around subsidy assumptions.
- Check your bill header first. Whether your connection is CESC or WBSEDCL determines which application path applies — don’t assume based on your neighborhood, since the two DISCOMs’ service areas interleave within the metro region.
SolarLogix confirms your DISCOM and current subsidy eligibility as the first step of any Kolkata consultation, before any pricing or system design discussion.
Solar Panel & System Price in Kolkata (2026)
SolarLogix’s current on-grid (PMSGY) system pricing by mounting type and capacity — the same real, quoted pricing used across our West Bengal installations, adjusted for site-specific logistics in the Kolkata metro area.
RCC Rooftop Mounting
| System Capacity | Panels | Price Before Subsidy | PM Surya Ghar Subsidy* | Price After Subsidy* |
|---|---|---|---|---|
| 2.36 kW, 1-Phase | 4 | ₹1,54,000 | ~₹66,480 | ~₹87,520 |
| 3.54 kW, 1-Phase | 6 | ₹2,15,000 | ₹78,000 | ₹1,37,000 |
| 4.13 kW, 1-Phase | 7 | ₹2,48,000 | ₹78,000 | ₹1,70,000 |
| 5.31 kW, 1-Phase | 9 | ₹3,10,000 | ₹78,000 | ₹2,32,000 |
GI Sheet Roof Mounting
| System Capacity | Panels | Price Before Subsidy | PM Surya Ghar Subsidy* | Price After Subsidy* |
|---|---|---|---|---|
| 2.36 kW, 1-Phase | 4 | ₹1,50,000 | ~₹66,480 | ~₹83,520 |
| 4.13 kW, 1-Phase | 6 | ₹2,10,000 | ₹78,000 | ₹1,32,000 |
| 5.31 kW, 1-Phase | 9 | ₹3,35,000 | ₹78,000 | ₹2,57,000 |
*Subsidy figures apply to WBSEDCL-connected households. CESC-connected households should confirm current subsidy eligibility directly with SolarLogix or CESC before assuming these figures apply — see the DISCOM section above.
Pricing reflects SolarLogix’s current on-grid PMSGY system quotes as of 2026 and may vary with rooftop access, building height, and site-specific requirements common in dense urban Kolkata construction. Contact SolarLogix for an exact quote based on your rooftop and consumption pattern.
Best Solar System Size for Your Kolkata Home
Kolkata’s housing stock skews toward smaller, denser rooftops than districts like Siliguri, which makes right-sizing especially important:
- 2–3 kW: The most common fit for a Kolkata flat or a modest independent house with a monthly bill in the ₹2,000–4,000 range. At CESC’s steep top-slab rates, even a modest system can meaningfully cut the highest-cost portion of your bill.
- 4–5 kW: Suited to larger independent houses or households with heavier AC and appliance load, provided the roof has adequate shadow-free area — a bigger constraint in Kolkata’s tightly built neighborhoods than in more spread-out districts.
- Beyond 5 kW: Available for homes with sufficient rooftop area, but increasingly common in Kolkata to hit a structural or shading ceiling before a subsidy ceiling — a site visit is essential before assuming a larger system is feasible.
Because CESC areas may not carry the same subsidy assumptions as WBSEDCL areas, sizing decisions in much of Kolkata proper should be based on unsubsidized payback economics first, with any subsidy treated as a bonus rather than a given — the reverse of how sizing works in WBSEDCL districts like Siliguri.
On-Grid vs Off-Grid: What Kolkata Homes Actually Need
Most Kolkata homes with a stable grid connection (CESC or WBSEDCL) are best served by an on-grid system with net metering — exporting daytime surplus and drawing from the grid at night. CESC’s net metering allows connections up to 500 kW, with excess units credited against consumption and carried forward within the billing cycle.
Off-grid or hybrid systems with battery backup make more sense for households or small businesses in older or infrastructure-constrained pockets of the city that experience more frequent outages, or for anyone wanting resilience beyond what grid-tied solar alone provides.
Installation Process with SolarLogix
- DISCOM confirmation — identifying whether your connection is CESC or WBSEDCL, since this determines the subsidy and application path
- Site visit and load assessment — reviewing your bill, rooftop access, shading, and structural condition (particularly relevant for older Kolkata buildings)
- System sizing and quotation — sized to actual roof constraints and consumption, not a generic estimate
- Subsidy application support (WBSEDCL-connected households) or CESC-specific guidance (for CESC-connected households)
- Installation — Tata Power Solar equipment installed to relevant grid-compliance standards
- Inspection and net metering — commissioning and bidirectional meter installation
- Subsidy disbursement (where applicable) — DBT credit to your bank account post-commissioning
Serving Kolkata and the Wider Metro Area
SolarLogix installs residential and commercial rooftop solar across Kolkata, Howrah, Hooghly, North 24 Parganas, and South 24 Parganas, alongside our broader West Bengal project portfolio — including our 258kW installation at Laxminarayan Food Products in Purulia and our 800kW installation at Hemraj Rice Mill in Katwa, giving us direct experience across both dense urban rooftops and large-scale industrial systems in Bengal’s climate and grid conditions.
Ready for a solar quote for your Kolkata home? Contact SolarLogix for a free site assessment — we’ll confirm your DISCOM, review your electricity bill and roof, and give you an exact system size and price, including a clear answer on subsidy eligibility.
Frequently Asked Questions
Am I eligible for the PM Surya Ghar subsidy in Kolkata? It depends on your DISCOM. WBSEDCL-connected households in the Kolkata metro area (parts of North/South 24 Parganas and similar areas) can generally apply through the standard national portal process. CESC-connected households — most of Kolkata city, Howrah, and Hooghly — currently face a separate, less standardized situation and should confirm their specific eligibility directly with CESC or SolarLogix before assuming the ₹78,000 subsidy applies.
How do I know if I’m on CESC or WBSEDCL? Check the header of your electricity bill — it will state the distributor name directly. The two DISCOMs’ service areas interleave across the metro region, so don’t assume based on neighborhood alone.
How much does a solar system cost in Kolkata? A typical RCC-mounted 3.54kW system runs ₹2,15,000 before subsidy, dropping to ₹1,37,000 for WBSEDCL-connected households eligible for the full ₹78,000 PM Surya Ghar subsidy. GI sheet mounting and other capacities vary — see the pricing table above.
Should I choose on-grid or off-grid solar in Kolkata? Most homes with a stable CESC or WBSEDCL connection do best with on-grid systems using net metering. Off-grid or hybrid systems with battery backup suit households in areas with more frequent outages or those wanting extra resilience.
Does SolarLogix only work with Tata Power Solar equipment? SolarLogix is an Authorized EPC Channel Partner of Tata Power Solar, so residential and commercial installations use Tata Power Solar panels and equipment as standard.
