If you’ve been thinking about switching to solar energy in Kolkata, you’ve probably come across dozens of names promising the world. But finding a solar company that truly delivers — on quality, service, technical expertise, and long-term support — is a different story entirely.
DENCO SOLAR, headquartered right here in Kolkata, has been doing exactly that since 2019. Acknowledged by the MSME Ministry and certified by NSIC (Government of India), DENCO SOLAR has quietly become one of the most trusted names in solar energy across West Bengal and beyond. From a single rooftop installation in a Behala home to a 1.085 MWp floating solar project for a steel plant, DENCO SOLAR brings the same commitment to every project — quality, transparency, and results.
This blog will walk you through everything you need to know about going solar in Kolkata, and why DENCO SOLAR should be your first and only call.
Kolkata enjoys approximately 4.5 to 5 peak sun hours per day and around 270 to 300 sunny days per year. That’s a powerful solar resource sitting right above your rooftop — completely untapped if you haven’t made the switch yet.
Meanwhile, electricity tariffs from CESC and WBSEDCL continue to rise year after year. A properly designed solar system eliminates 70 to 90% of your monthly electricity bill and, through net metering, lets you earn credits by selling surplus power back to the grid.
The math is straightforward. A quality solar system installed by an experienced company like DENCO SOLAR pays itself back in 5 to 7 years and then continues producing free electricity for the next 18 to 20 years after that.
DENCO SOLAR is a full-service solar energy company based in Kolkata, operating from 1/31 Ext., Military Camp, RBC Road, Kanchanjunga, Kolkata – 700028. Founded in 2019, the company has grown into a comprehensive solar EPC (Engineering, Procurement & Construction) provider serving homeowners, businesses, industries, institutions, and government organisations across India.
What sets DENCO SOLAR apart is the depth of services under one roof. Most solar installers simply put panels on your roof and walk away. DENCO SOLAR offers the complete package — from initial shadow analysis and PVSYST simulation to CEIG approval, net metering coordination, testing and commissioning, and long-term Operation & Maintenance.
The company is recognised by MSME and certified by NSIC (Government of India) — credentials that reflect both its credibility and its eligibility to handle government-subsidised solar projects.
Rooftop Solar for Homes & Businesses
Whether you own a 2 BHK flat in Salt Lake, a bungalow in Alipore, or a commercial office in New Town, DENCO SOLAR designs and installs on-grid, off-grid, and hybrid rooftop solar systems tailored to your exact energy consumption. Every system is preceded by a thorough site assessment, shadow analysis, and load calculation so you get a system sized precisely for your needs — not oversized to inflate the bill, not undersized to disappoint.
Ground-Mounted & Large-Scale Solar
For industrial clients, DENCO SOLAR has successfully delivered large-scale solar projects including a 1.085 MWp floating solar system for a steel plant, a 531 kWp rooftop grid-connected system for a plastic manufacturing plant, a 303 kWp combined rooftop and ground-mounted system for an FMCG company, and a 14 kWp system for an organic farming unit. These projects demonstrate DENCO SOLAR’s engineering capability far beyond the typical residential installer.
Solar Design Engineering & Technical Consulting
For developers, architects, and project owners who need technical inputs before committing to an installation, DENCO SOLAR provides detailed design engineering services including AUTOCAD engineering drawings, PVSYST analysis, Helioscope reports, topographical surveys, and financial modelling. This is especially valuable for MSME clients exploring rooftop solar as an investment and for large-scale project developers seeking EPC partners.
EV Charging Infrastructure
DENCO SOLAR is one of the few solar companies in Kolkata that also designs and installs solar-powered EV charging stations. As Kolkata’s electric vehicle adoption grows, integrating EV charging with your solar rooftop makes both environmental and financial sense.
Testing, Commissioning & O&M
Once a system is installed, DENCO SOLAR’s work doesn’t end. The company offers comprehensive post-installation services including module IV curve testing, electroluminescence (EL) testing, drone surveys for large installations, and ongoing monitoring. Annual Maintenance Contracts ensure your system performs optimally for decades.
Government Liaisoning & Net Metering
DENCO SOLAR handles the entire net metering application process with CESC and WBSEDCL, as well as CEIG (Chief Electrical Inspector to Government) approvals — pan India. For customers seeking government subsidies under PM Surya Ghar Muft Bijli Yojana, DENCO SOLAR’s empanelment and liaison expertise means you receive every rupee of subsidy you are entitled to, without the paperwork headache.
On-Grid System — The most popular choice for urban Kolkata. No batteries needed. Solar powers your home during the day; surplus goes to the grid for credits. Most cost-effective option with the fastest payback period. Does not function during power cuts.
Off-Grid System — Full energy independence with battery storage. Best for areas with unreliable grid supply. Higher upfront cost due to batteries but offers complete autonomy from CESC or WBSEDCL.
Hybrid System — Grid-connected with battery backup. The ideal choice for Kolkata households that experience power cuts. You enjoy net metering benefits in normal operation and seamless battery backup during load shedding. DENCO SOLAR installs hybrid systems with quality lithium battery options for long-term reliability.
Not sure which system suits you best? DENCO SOLAR’s team will assess your roof, your energy consumption pattern, your local power cut frequency, and your budget — and recommend the right solution without upselling you on what you don’t need.
DENCO SOLAR provides solar installation services across the entire Kolkata metropolitan area and West Bengal, including Salt Lake, New Town, Rajarhat, Jadavpur, Behala, Ballygunge, Alipore, Dum Dum, Howrah, Barasat, and surrounding districts. The company also handles large industrial and commercial solar projects across India.
There is no shortage of solar installers in Kolkata. Here is what makes DENCO SOLAR genuinely different:
Government-recognised credibility. MSME acknowledgement and NSIC certification (Government of India) are not just badges — they reflect the technical and operational standards DENCO SOLAR maintains on every project.
End-to-end service. From shadow analysis and PVSYST simulation before installation, to CEIG approval, net metering, testing, commissioning, and long-term O&M after installation — DENCO SOLAR handles it all. You work with one company, not a chain of contractors.
Proven at scale. DENCO SOLAR has delivered projects from residential rooftops to a 1.085 MWp industrial floating solar plant. That breadth of experience translates into better engineering decisions at every project size.
Local expertise. Based in Kolkata, DENCO SOLAR understands the nuances of CESC and WBSEDCL net metering, West Bengal’s solar policy landscape, local monsoon impacts on system design, and the specific roof types common across Kolkata’s housing stock.
Transparent process. DENCO SOLAR provides detailed itemised proposals — panels, inverters, mounting structure, wiring, and installation costs broken out clearly — so you can make an informed decision.
Simply visit dencosolar.in or call the DENCO SOLAR team directly. Share your latest electricity bill and a few photos of your rooftop and you'll receive a preliminary assessment and indicative quote quickly. For larger commercial or industrial projects, DENCO SOLAR conducts a detailed site visit including shadow analysis and load assessment before preparing a full techno-commercial proposal.
Yes. DENCO SOLAR is acknowledged by the Ministry of MSME and certified by NSIC (Government of India). The company is empanelled to handle subsidised rooftop solar installations and manages the entire subsidy application process under PM Surya Ghar Muft Bijli Yojana on behalf of its customers.
Most residential customers in Kolkata see their monthly electricity bills reduce by 70 to 90% after going solar with DENCO SOLAR. The exact saving depends on system size, your energy consumption pattern, and the number of sunny days in any given month. DENCO SOLAR's team calculates your expected annual generation and savings before installation so you know exactly what to expect.
A standard on-grid solar system shuts off automatically during grid outages — this is a mandatory safety requirement. If you want power during cuts, DENCO SOLAR installs hybrid solar systems with lithium battery backup that keep your essential appliances running even when the grid goes down. Given Kolkata's history of monsoon-season power cuts, many customers opt for the hybrid route.
Yes, completely. DENCO SOLAR manages the full net metering application with CESC and WBSEDCL, including CEIG approval where required. You don't need to visit any government office or utility counter. The company's liaisoning team handles all documentation, inspections, and follow-ups until your bidirectional meter is installed and operational
DENCO SOLAR works with Tier-1 solar panel brands known for reliability and long-term performance warranties. For inverters, the company selects quality brands suited to each project's scale and requirements. Every product recommendation is backed by DENCO SOLAR's technical team's assessment of what will deliver the best return for your specific installation — not simply what carries the highest margin.
Yes. DENCO SOLAR provides Annual Maintenance Contracts (AMC) covering panel cleaning, inverter health checks, wiring inspection, and system performance monitoring. For large industrial installations, DENCO SOLAR offers advanced O&M services including module IV curve testing, EL testing, and drone surveys to detect underperforming panels early and protect your investment.
Absolutely. DENCO SOLAR has delivered solar projects ranging from 14 kWp organic farm installations to 1.085 MWp floating solar systems for steel plants. The company provides full EPC services for industrial and commercial clients, including design engineering, PVSYST analysis, financial modelling, CEIG approvals, and turnkey installation. DENCO SOLAR also provides techno-commercial support specifically for MSME sector clients exploring rooftop solar as an investment.
Whether you’re a homeowner in South Kolkata looking to cut your CESC bill, an MSME owner in Howrah exploring solar as an investment, or a large industrial client planning a MW-scale installation — DENCO SOLAR has the expertise, credentials, and track record to get it done right.
Visit: www.dencosolar.in Address: Convergence Contact Center, D2/2, Block EP&GP, Saltlake, Sector-V Kolkata-700091. India
Get your free site assessment today. The sun is already shining over Kolkata — let DENCO SOLAR help you make the most of it.
