Best Solar Companies & Verified Installers in Kolkata

Solar benchmark: Kolkata, West Bengal

Primary DISCOMWBSEDCL (State Electricity)
PM Surya Ghar subsidy (3 kW)₹78,000
Estimated 3 kW gross cost₹1,95,000
Avg daily solar radiation4.8 – 5.5 kWh/m²
Estimated payback period3.2 – 3.8 years
Net homeowner cost₹1,17,000
Sources: MNRE National Solar Mission, PM Surya Ghar Portal, State Electricity Regulatory Commission tariff orders 2026.. How we calculate

Homeowners and commercial businesses in Kolkata can achieve substantial reductions in monthly power tariffs through rooftop solar installations connected under West Bengal's grid net-metering framework.

Under the central PM Surya Ghar Muft Bijli Yojana, residential consumers installing up to 3 kW capacity qualify for direct bank transfer subsidies up to ₹78,000 when using MNRE ALMM-compliant modules.

Solar installers in Kolkata

Public register of verified solar EPC companies, rooftop contractors, and authorized dealers.

Showing 29 solar companies in KolkataPublic register view
CP
C-FRITTS POWER PVT. LTD.Verified Installer
5.0(116 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

C-FRITTS POWER PVT. LTD. is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 1/48, Neli Nagar, Haltu, Kolkata, West Bengal 700078, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
AS
Aparajita SolarVerified Installer
5.0(82 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

If you are looking for the best solar company in Kolkata and West Bengal. Aparajita Solar provides quality and economical solutions for you

Rooftop solarNet meteringSubsidy paperwork
HS
HCK Solar Energy LimitedVerified Installer
5.0(34 Google reviews)·
Commercial Solar Installers·Kolkata, West Bengal

HCK Solar delivers top-tier design, engineering, and installation services for solar power plants across India. Explore our turnkey solar solutions.

Rooftop solarNet meteringSubsidy paperwork
FE
5.0(19 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Fouress Engineering Solutions- Solar Energy Company Kolkata, Solar energy system service in Kolkata is a verified solar solutions contractor based in Kolkata, West Bengal. Located at F 53, F-Block Patuli, Kadamtala, Baishnabghata Patuli Twp, Patuli, Kolkata, West Bengal 700094, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
VC
5.0(9 Google reviews)·
Solar AMC & Maintenance·Kolkata, West Bengal

Vedic Solar is a leading solar EPC company in Eastern India delivering residential, commercial, and industrial solar solutions with end-to-end engineering excellence.

Rooftop solarNet meteringSubsidy paperwork
NP
5.0(1 Google reviews)·
Solar AMC & Maintenance·Kolkata, West Bengal

NK POWERS is a verified solar solutions contractor based in Kolkata, West Bengal. Located at Strand Rd, Fairley Place, B.B.D. Bagh, Kolkata, West Bengal 700001, India, the company provides end-to-end solar amc & maintenance services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
SI
SolarConnect IndiaVerified Installer
5.00·
Residential Solar Installers·Kolkata, West Bengal

SolarConnect India (Techsr Enterprise) is building a solar dealer and channel partner network across India from its office in Serampore, Hooghly, West Bengal. Dealers bring leads and customer files; SolarConnect's own team handles site survey, planning, paperwork and installation in-house. Households and businesses can also come to us directly for on-grid, off-grid and hybrid rooftop solar, battery storage and solar pumps. PM Surya Ghar applications are supported through our partner Pro Power Energies, a registered PM Surya Ghar vendor. Phone 033 3183 5203 / +91 92823 67700, info@thetechsr.com. Open Mon-Sat 10:30 AM-6:30 PM.

Rooftop solarNet meteringSubsidy paperwork
SE
Saha Electronics & BatteryVerified Installer
4.9(275 Google reviews)·
Solar Inverter Specialists·Kolkata, West Bengal

Saha Electronics & Battery is a verified solar solutions contractor based in Kolkata, West Bengal. Located at Barasat, Kolkata, West Bengal 700124, India, the company provides end-to-end solar inverter specialists services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
TI
THE INVERTER BATTERY CAREVerified Installer
4.9(209 Google reviews)·
Solar Inverter Specialists·Kolkata, West Bengal

THE INVERTER BATTERY CARE is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 52/2, Lenin Sarani, Chittaranjan Para, New Barrakpur, Kolkata, West Bengal 700133, India, the company provides end-to-end solar inverter specialists services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
ES
Echo Solar PowerVerified Installer
4.9(177 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Echo Solar Power is a verified solar solutions contractor based in Kolkata, West Bengal. Located at mukunda Das Palli, 173, James Long Sarani, Mukund Das Colony, Thakurpukur, Kolkata, West Bengal 700063, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
GW
Green Watt Solar EnergyVerified Installer
4.9(104 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Green Watt Solar Energy is a verified solar solutions contractor based in Kolkata, West Bengal. Located at Garia Place, Garia, Kolkata, Rajpur Sonarpur, West Bengal 700084, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
GB
4.9(19 Google reviews)·
Solar Inverter Specialists·Kolkata, West Bengal

Ganapati Battery Enterprise is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 196/1/1 Netaji Subhash Road, Petrol pump, Middle of Parvati Cinema Hall, and, near Vivekananda Athletic Club, Ghoshpara, Bantra, Ichapur, Howrah, West Bengal 711101, India, the company provides end-to-end solar inverter specialists services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
AS
Avalani SolarVerified Installer
4.9(17 Google reviews)·
Solar AMC & Maintenance·Kolkata, West Bengal

Avalani Solar provides end-to-end solar and battery energy storage (BESS) solutions across India. We design, install, and maintain systems that power a cleaner, greener future.

Rooftop solarNet meteringSubsidy paperwork
NS
Natural Solaris Pvt LtdVerified Installer
4.8(153 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Natural Solaris Pvt Ltd is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 3rd Floor, 98/6, AK Mukherjee Rd, near LAL QUARTERS, Palpara, Baranagar, Kolkata, Baranagar, West Bengal 700090, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
SS
Sova Solar LimitedVerified Installer
4.8(54 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Sova Solar is India's leading Solar Modules manufacturer offering advancedTOPCon Bifacial Moduless, and integrated solar manufacturing. 18+ years expertise. BIS/MNRE approved. Make in India.

Rooftop solarNet meteringSubsidy paperwork
A
AlienSolarVerified Installer
4.8(35 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

AlienSolar is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 181, 1, CIT Rd, CIT Scheme VII M, Ultadanga, Kolkata, West Bengal 700054, India, the company provides end-to-end solar panel dealers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
GS
GREEN SOLAR - HOWRAHVerified Installer
4.8(31 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

GREEN SOLAR is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 57, bus stand, charamtola, Baghpara, Domjur, Howrah, West Bengal 711405, India, the company provides end-to-end solar panel dealers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
SA
4.8(13 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

Sati Agency (Luminous Solar, Inverter, Battery & Stabilizer Distributor) is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 2nd Floor, Room No 203, Kamalalaya Centre, 156 A, Lenin Sarani Rd, Esplanade, Chandni Chawk, Bowbazar, Kolkata, West Bengal 700072, India, the company provides end-to-end solar panel dealers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
SP
SunShell PowerVerified Installer
4.7(142 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

SunShell Power is a mission-driven upcoming top solar companies in India that focus on providing people with affordable energy solutions.

Rooftop solarNet meteringSubsidy paperwork
RP
RAJ POWER CONTROLVerified Installer
4.7(79 Google reviews)·
Solar Inverter Specialists·Kolkata, West Bengal

RAJ POWER CONTROL is a verified solar solutions contractor based in Kolkata, West Bengal. Located at BA -02, near S.D TOWER, Prafulla Kanan West, Prafulla Kanan, Kestopur, Kolkata, West Bengal 700101, India, the company provides end-to-end solar inverter specialists services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
GS
Galaxy Solar Energy Pvt LtdVerified Installer
4.6(10 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

Galaxy Solar provides reliable and affordable solar energy solutions, helping homes and businesses switch to clean, sustainable power.

Rooftop solarNet meteringSubsidy paperwork
SR
4.5(110 Google reviews)·
Commercial Solar Installers·Kolkata, West Bengal

Solace Renewable Energy Private Limited is a verified solar solutions contractor based in Kolkata, West Bengal. Located at Kankulia Rd, Dhakuria, Kankulia, Gariahat, Kolkata, West Bengal 700068, India, the company provides end-to-end commercial solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
BS
Bengal Solar PowerVerified Installer
4.5(89 Google reviews)·
Commercial Solar Installers·Kolkata, West Bengal

Commercial solar for Kolkata industries. Howrah, Durgapur corridor. WBSEDCL net metering specialist.

Rooftop solarNet meteringSubsidy paperwork
ES
Evergreen SolarVerified Installer
4.5(64 Google reviews)·
Residential Solar Installers·Kolkata, West Bengal

Evergreen Solar is a verified solar solutions contractor based in Kolkata, West Bengal. Located at MCGP+8GX, Nabajiban Colony, Naba Jiban, Birati, North Dumdum, Kolkata, West Bengal 700158, India, the company provides end-to-end residential solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
VS
Vikram Solar LimitedVerified Installer
4.4(64 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

Vikram Solar is one of the best solar companies offering clean energy solutions. Explore trusted solar company options for reliable power solutions.

Rooftop solarNet meteringSubsidy paperwork
SP
SOLAR POWER HOUSEVerified Installer
4.2(21 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

SOLAR POWER HOUSE is a verified solar solutions contractor based in Kolkata, West Bengal. Located at 25B, Chandni Chowk St, Esplanade, Chandni Chawk, Bowbazar, Kolkata, West Bengal 700072, India, the company provides end-to-end solar panel dealers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
GS
GEETANJALI SOLAR ENTERPRISEVerified Installer
4.1(57 Google reviews)·
Commercial Solar Installers·Kolkata, West Bengal

GEETANJALI SOLAR ENTERPRISE is a verified solar solutions contractor based in Kolkata, West Bengal. Located at P-14 PHASE, 1, Kasba Industrial Estate, Sector J, East Kolkata Twp, Kolkata, West Bengal 700107, India, the company provides end-to-end commercial solar installers services across Kolkata and neighboring districts. Specializing in residential and commercial rooftop solar projects, they assist property owners with turnkey system installation, DISCOM net-metering liaison, tier-1 solar panel selection, and PM Surya Ghar Muft Bijli Yojana subsidy processing.

Rooftop solarNet meteringSubsidy paperwork
JS
Jyoty Solar powerVerified Installer
4.0(46 Google reviews)·
Solar Panel Dealers·Kolkata, West Bengal

Jyoty Solar Power-Manufacturer and supplier of Solar street light,Solar pump,Solar water heater,Solar lantern,Solar panel,Solar products,LED light, Led street light etc.in kolkata,West Bengal.

Rooftop solarNet meteringSubsidy paperwork

How to get solar in Kolkata

Step-by-step roadmap from initial roof survey to grid commissioning and central subsidy credit.

1

Roof assessment and load calculation

A certified engineer inspects your rooftop shadow profile in Kolkata and determines system capacity based on your recent electricity consumption.

2

Installer selection & quotation

Compare 2–3 written proposals specifying MNRE ALMM-listed panels, inverter make, and comprehensive installation workmanship warranty.

3

DISCOM application with WBSEDCL (State Electricity)

Your installer files the technical feasibility and grid net-metering application on the state utility portal.

4

Installation and bi-directional meter testing

Hardware installation takes 1–3 days. DISCOM inspectors inspect earthing, install the net meter, and commission the connection.

5

Direct Benefit Transfer (DBT) subsidy credit

Upload the joint commissioning report to the PM Surya Ghar National Portal to receive the ₹78,000 central subsidy directly in your bank account.

Electricity grid and net metering in West Bengal

Distribution utilities

Grid connection in Kolkata is managed primarily by WBSEDCL (State Electricity), CESC Kolkata.

Sanctioned load & sizing

Rooftop capacity is typically capped at 100% of your sanctioned connected load. Feasibility is approved prior to meter installation.

Net billing settlement

Surplus electricity exported to the grid is credited on your monthly power invoice at regulatory banking tariffs.

Frequently asked questions: Kolkata solar

How much does solar installation cost in Kolkata in 2026?+
In Kolkata, a 3kW residential solar system costs ₹44,000 - ₹78,000 on average in 2026. After applying the PM Surya Ghar Yojana subsidy of up to ₹78,000, your net cost comes down to approximately ₹1.2L–₹1.8L. A 5kW system ranges from ₹72,000 - ₹1,28,000. Costs vary based on panel brand (Tata, Adani, Waaree, etc.), inverter type (string vs micro), and installation complexity. Most Kolkata homeowners recover their investment in 3-4 years through electricity bill savings. Get free quotes from verified installers to find the best deal.
Which are the best solar companies in Kolkata?+
The best solar companies in Kolkata are those verified by GoSolarIndex with proven track records. We list only MNRE-certified installers who have completed successful installations in Kolkata. Top-rated companies have 4+ star ratings, authentic customer reviews, and comply with CESC net metering requirements. Look for the "Verified" badge and check reviews before choosing. Popular installers serve areas like Salt Lake, New Town, Rajarhat. Filter by rating and reviews to find the best fit for your needs.
Is PM Surya Ghar subsidy available in Kolkata?+
Yes! PM Surya Ghar Yojana subsidy is fully available in Kolkata, West Bengal. You can get up to ₹78,000 central government subsidy (₹30,000 for 1-2kW, ₹60,000 for 2-3kW, and ₹78,000 for 3kW+). Central government subsidy up to ₹78,000 available Applications are processed through CESC. Our verified installers help you with documentation, subsidy application, and follow-ups to ensure you receive the full amount.
How does net metering work in Kolkata?+
Net metering in Kolkata is managed by CESC/WBSEDCL. After installing solar panels, you export excess electricity to the grid during the day and consume grid power at night. Your meter runs backward when exporting, earning you credits. CESC approval takes 15-45 days on average. You'll need: solar installation completion certificate, CESC application form, building NOC, and technical drawings. Process varies slightly by DISCOM area. Our verified installers handle all CESC paperwork and inspections. You get billed only for net consumption (consumed - exported).