How to Choose a Solar EPC Company in Tamil Nadu: A Due-Diligence Checklist
Most people researching solar spend real time comparing panel brands and inverter specifications, and far less time vetting the company that will actually design, install and stand behind the system for years afterward. The installer matters at least as much as the equipment — arguably more, since the same panel can be installed well or badly.
Start With Empanelment and Compliance, Not Price
- Confirm the installer is empanelled for subsidy-linked projects with the relevant utility or agency — this alone determines whether you’re even eligible for the PM Surya Ghar subsidy
- Confirm the specific panels and inverter proposed are on the ALMM-approved list, not just that they’re “good brands”
- Ask who handles the net metering application and utility paperwork, and whether that’s included in the quoted price or billed separately
This connects directly to subsidy eligibility: choosing a non-empanelled installer or non-approved equipment can disqualify a household from the subsidy entirely, regardless of how well the system is actually installed.
Insist on a Real Site Assessment, Not a Phone Quote
A number given over a phone call, or generated from a satellite image alone, is a starting estimate — not a design. A proper assessment should include a structural check of the roof’s load-bearing capacity, a shading analysis across different times of day and seasons, and system sizing based on your actual consumption pattern from real bills, not just a round number you asked for.
Ask for a Transparent, Itemized Quote
A serious quote breaks out what you’re actually paying for: panel brand, wattage and count; inverter brand, capacity and type; balance-of-system components like cabling, mounting structure and earthing or lightning protection; labor and civil work; and net-metering or liaison charges. A single lump-sum number without this breakdown makes it difficult to compare quotes fairly or know what you’re negotiating.
Warranty: Read Past the Headline Number
- A product warranty (covering defects in the panel or inverter itself) and a performance warranty (covering guaranteed output over time) are two different things — ask for both, in writing
- Ask specifically who honors the warranty if the installer is no longer in business years from now; panel and inverter manufacturer warranties are typically separate from the installer’s own workmanship warranty
- Ask what’s covered for the mounting structure and cabling specifically — these are often glossed over in favor of talking about the panels
After-Sales Support Is Part of the Product
- What happens if generation drops or the inverter throws an error — is there a monitoring app, and who exactly do you call
- Whether cleaning or maintenance visits are offered, and on what terms
- A stated, written response time for a service request, rather than a verbal assurance
Look for a Verifiable Track Record, Not Testimonials Alone
A written testimonial is easy to produce and hard to verify. Where possible, ask to see actual completed installations rather than photos alone, and ask to speak with a real, verifiable reference or visit a live site. Seeing an operating system for yourself tells you far more than a quote sheet or a review ever will.
Red Flags Worth Walking Away From
- Pressure to sign the same day, or a discount that expires “today only”
- No written structural or shading assessment offered before the quote is finalized
- Reluctance to specify the exact panel and inverter model and brand in writing
- No clarity on who’s actually responsible for handling net metering and subsidy paperwork
How KinetiQ Energy Approaches This
This checklist isn’t written from the outside looking in. KinetiQ Energy is an MNRE-empanelled vendor and follows the compliance requirements a subsidy claim depends on — which answers the first item on this list directly, rather than asking you to take it on faith. The rest of the standard is the same one any installer should be comfortable being measured against: a real site visit before a number is quoted, an itemized breakdown instead of a lump sum, and clear ownership of the net-metering and subsidy paperwork from start to finish.