Industrial & Commercial Solar in Tamil Nadu

Why commercial solar pays back faster than residential

Commercial and HT industrial consumers in Tamil Nadu pay materially higher per-unit tariffs than domestic users, and they consume most of their power during daylight hours - exactly when a rooftop array produces. That daytime overlap means a factory in Ambattur, Sriperumbudur, Oragadam or Hosur self-consumes almost every unit generated, avoiding the export-import accounting that slows residential payback.

Add the Income Tax Act's 40% accelerated depreciation in year one plus normal depreciation on the balance, and the effective post-tax cost of the plant drops sharply. Most of our commercial clients see a 3 to 5 year payback against a 25-year asset life, with a levelised cost of energy well under half of what they pay TANGEDCO today.

• Daytime load profile matches solar generation
• 40% accelerated depreciation in the first year
• Hedge against annual tariff revisions for 25 years
• Documented Scope 2 emission reduction for ESG and customer audits

Technical specifications we build to

We deploy 550 Wp to 650 Wp bifacial or TOPCon modules on hot-dip galvanised structures designed for the wind zone of your site, with pre-installation structural load analysis on RCC roofs and purlin-strength verification on metal sheet roofs. String inverters from 50 kW upward or central inverters above 250 kW are configured with SCADA and remote plant monitoring, string-level current sensing, and IEC-compliant DC and AC combiner boxes.

Cabling uses double-insulated solar DC cable in GI trays, with lightning protection, dedicated earth pits per array and inverter, and an anti-islanding relay coordinated with your DISCOM protection scheme. Every plant is handed over with structural stability certificates, single-line diagrams, cable schedules, torque logs, earth resistance readings and an O&M manual.

Case studies from Tamil Nadu industrial belts

A 120 kW plant on an auto-component unit near Oragadam replaced roughly 1.6 lakh units a year and cut the plant's monthly energy bill by about 32%. A 60 kW installation on a cold-storage facility in Tiruvallur removed the daytime compressor load from the grid entirely. A 45 kW system at a Chennai commercial complex covered lifts, chillers and common lighting, and the building's maintenance charges dropped in the first billing cycle.

Every installation we complete is geotagged and photographed; you can browse a live sample in our installation gallery before you commit.

Net metering, banking and CAPEX or OPEX

LT commercial consumers connect under TANGEDCO net metering; HT consumers typically operate under net billing or captive settlement, and we prepare the feasibility application, single-line diagrams and the CEIG approval file where required. Both CAPEX ownership and OPEX or RESCO structures are available - under RESCO a third party funds the plant and you buy generated units at a fixed tariff below grid, with zero upfront capital.

Operations and maintenance

Industrial rooftops in Tamil Nadu accumulate cement dust, textile lint and coastal salt, all of which cut yield. Our AMC packages combine scheduled module cleaning, thermal imaging of strings and joints, inverter servicing, earthing verification and a monthly generation report benchmarked against the guaranteed performance ratio, so any shortfall is caught in the same billing month it appears.