About
A first visit can provide an overview of the available solar solutions and the initial steps required for system integration. Individuals or businesses in the Kolkata area seeking rooftop solar installations should consider the local utility's net-metering process when planning their system. The feasibility of connecting to the local distribution company (DISCOM) grid depends significantly on the utility's current application processing timeline. While the technical aspects of system design are straightforward, the interconnection approval from the DISCOM can introduce variable delays. Customers should anticipate that the time taken to secure net-metering approval is often the most unpredictable element of the project timeline. It is advisable for prospective buyers to inquire directly with the local DISCOM office regarding their current backlog and required documentation for grid connectivity. Furthermore, understanding the specific guidelines for net-metering applications within the West Bengal region prior to finalizing equipment purchases can streamline the overall deployment schedule.
Get a quote from HCK Solar Energy Limited
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Rooftop solar in Kolkata, West Bengal
A standard residential rooftop solar system in Kolkata sizes between 1 kW and 5 kW depending on monthly consumption. Most Kolkata homeowners pick a 3 kW system — it covers 300–400 units a month and captures the full ₹78,000 PM-Surya Ghar central subsidy.
Installed cost for a 3 kW system runs ₹1.8 lakh to ₹2.4 lakh; after the central subsidy your net outlay is ₹1.0 lakh to ₹1.6 lakh. Payback typically lands between 3.5 and 5 years — and the panels carry a 25-year warranty. HCK Solar Energy Limited can quote your specific roof; use the Get Quote form above or call 033 2288 0064.
The installer handles the PM-Surya Ghar registration, DISCOM net-metering application, system installation, and commissioning. Confirm AMC terms, panel warranty (look for Tier-1 manufacturer + 25-year linear-power guarantee), and inverter warranty (10 years minimum) before signing.
What to check before booking
- Site visit and shading analysis — this determines the realistic kW your roof can support
- PM-Surya Ghar registration done on your behalf, with the ₹78,000 subsidy credited directly to your bank
- DISCOM net-metering application and commissioning — installer should handle this end-to-end
- Tier-1 panels with 25-year linear-power warranty (degradation ≤0.55% per year)
- Inverter warranty (10 years minimum) and on-site replacement policy
- AMC contract for at least 5 years (panel cleaning, performance check, inverter health)
Frequently asked questions
How much PM-Surya Ghar subsidy can I get in Kolkata?
PM-Surya Ghar: Muft Bijli Yojana offers up to ₹78,000 for a residential rooftop solar system (₹30,000 per kW for the first 2 kW, ₹18,000 for the 3rd kW). Most households choose a 3 kW system to capture the full subsidy. West Bengal residents apply through the national pmsuryaghar.gov.in portal — your DISCOM and the installer handle the rest.
What's the typical cost of a 3 kW system in Kolkata?
A 3 kW grid-connected residential rooftop system costs ₹1.8 lakh to ₹2.4 lakh installed (₹60,000 – ₹80,000 per kW). After the ₹78,000 PM-Surya Ghar subsidy, your net cost is ₹1.0 lakh to ₹1.6 lakh. Payback for a typical household in West Bengal is 3.5 – 5 years; the panels carry a 25-year warranty.
Does HCK Solar Energy Limited handle net-metering paperwork?
Reputable solar installers handle the net-metering and DISCOM application end-to-end — site survey, design, DISCOM application, installation, commissioning, and meter installation. Confirm with HCK Solar Energy Limited when you call (033 2288 0064) or fill the Get Quote form above.
What panels and inverters does HCK Solar Energy Limited typically install?
For PM-Surya Ghar eligibility, panels must be from approved manufacturers — typically Tier-1 brands such as Adani, Vikram, Waaree, Tata Power Solar, Premier Energies, or Loom Solar. Inverters are usually Growatt, Solis, Microtek, Polycab, or Luminous. Ask for the specific model and the 25-year linear-power warranty document.
How long does installation take?
Typical timeline: 3 days for site survey + design, 10–20 days for DISCOM approval, 1–2 days for installation, 7–15 days for net-meter installation and commissioning. End-to-end is 4–8 weeks for most residential installations in Kolkata.
Location
5th Floor, 6, Little Russel St, Kankaria Estates, Park Street area, Kolkata, West Bengal 700071, India
View on Google Maps →Opening hours
| Sunday | Closed |
|---|---|
| Monday | 10:00 – 18:30 |
| Tuesday | 10:00 – 18:30 |
| Wednesday | 10:00 – 18:30 |
| Thursday | 10:00 – 18:30 |
| Friday | 10:00 – 18:30 |
| Saturday | 10:00 – 15:00 |