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Commercial and industrial rooftop solar in India: what owners should plan for

Published 15 March 2026 · Solar EPC

Rooftop solar for factories, warehouses, and commercial blocks is one of the fastest ways to cut operating cost — but only when the project is sized, engineered, and commissioned with the real constraints of your site in mind. This note is a checklist we use when talking to owners before design freeze.

Sanctioned load and export limits

Your sanctioned load and the DISCOM’s net-metering or banking rules define how much solar you can usefully deploy. Oversizing without understanding export caps or billing settlement can leave generation on the table or create surprises on the bill. Early conversation with your electricity supplier (and accurate historical consumption data) prevents rework later.

Structure and wind

Modules and ballast or anchor loads must match the roof’s capacity and local wind zone. A structural assessment is not optional for large spans or older sheds. We align mounting with waterproofing details so you do not trade energy savings for leaks.

Beyond “lowest price per watt”

Low bids that skip string-level monitoring, proper DC protection, or documented as-built drawings cost more over the life of the plant. Compare proposals on inverter topology, cable sizing, safety disconnects, and the quality of the commissioning and handover package — not just capex per watt.

Operations from day one

Industrial rooftops need a simple O&M rhythm: visual inspection, inverter alerts, and occasional thermography. If your team does not have bandwidth, factor a service retainer into year-one planning.

Planning a plant or rooftop system? Talk to KETE about design, EPC, and long-term support across India and Nepal.