How much solar can your factory actually install?

As a working figure at a ₹9/unit blended tariff, a ₹1 lakh monthly bill is roughly 11,000 units — about 90–95 kW of solar if you wanted to offset all of it, or less if your DISCOM caps net metering at your sanctioned load. Size against consumption and rules, not the bill alone; the calculator does this arithmetic for your numbers.

Under net metering it's exported and credited per your DISCOM's banking rules — which differ by state and are tightening in several. Under a captive/behind-the-meter design without export, Sunday generation is curtailed unless you shift load. This single policy detail changes optimal plant size by 10–20% and is exactly the kind of input an EPC should model before quoting.

Pre-engineered sheds usually take ~12–15 kg/m² of additional load comfortably, but older trussed roofs, corroded purlins and asbestos sheets need a structural verdict first. We survey before we design — replacing sheeting or reinforcing purlins is sometimes part of an honest quote, and skipping that check is how plants end up on roofs that can't hold them.

Current C&I turnkey benchmarks run roughly ₹40,000–50,000 per kW installed for rooftop systems, varying with structure type, cable runs, inverter class and metering scope. See the detailed breakdowns for 100 kW, 500 kW and 1 MW plants, or run your own configuration in the calculator.

Materially. Businesses can claim accelerated depreciation (40% WDV) on solar assets and input credit treatment depends on how the contract is structured — both improve post-tax payback versus the sticker calculation. We flag the current treatment during proposal; confirm specifics with your CA, as tax positions change.

We do, in-house — net-metering application, CEIG approval and synchronisation. Approvals are our core trade as an MEPF contractor; our published guide on net-metering timelines in UP, Punjab and Haryana reflects filings we actually run, not theory.