Sized for small factories, rice mills, function halls, showrooms and clinics. Real numbers below: system cost, monthly generation, accelerated depreciation math, and payback — no subsidy assumed, because commercial connections don't get PM Surya Ghar.
Cost range reflects 2026 Indian commercial rooftop solar market rates (~₹40,000-70,000/kW, with larger systems costing less per kW). Roof type, structure (RCC vs tin shed), panel brand, and site access change the final number — confirmed only after a free site survey.
Single-shift husking/polishing units with daytime-only load. A 20kW array covers a large share of milling machinery load during operating hours.
Smaller banquet halls and community function spaces with daytime lighting, AC and catering-kitchen load on weekdays between events.
Furniture, electronics and garment showrooms with long daytime operating hours — high daytime AC and lighting load matches solar generation well.
Fabrication units, printing presses and packaging units running single-shift daytime machinery loads under ~25kW sanctioned load.
Illustrative numbers for a business currently paying a commercial electricity bill of roughly ₹25,000-30,000/month with a ~20kW sanctioned load.
| System size | 20 kW |
| Estimated system cost | ₹10,40,000 |
| Monthly generation (120 units/kW/month) | 2,400 units |
| Monthly bill offset (@ ₹9/unit) | ₹21,600 |
| Annual electricity savings | ₹2,59,200 |
| First-year depreciation (40% of cost) | ₹4,16,000 |
| Illustrative tax saving @ 25% slab | ₹1,04,000 |
| Illustrative tax saving @ 30% slab | ₹1,24,800 |
| Simple payback (electricity savings only) | ~4.0 years |
* Illustrative only, not tax advice — depreciation math assumes the asset is put to use for 180+ days in the financial year (else only half the normal rate, 20%, applies in the year of purchase). Actual tax benefit depends on your entity's income, applicable surcharge/cess, and tax regime. Run your own numbers in the depreciation calculator →
Solar power-based devices are classified as a 40% WDV block of assets under Appendix I to the Income Tax Rules (Rule 5 read with Section 32(1)(ii)). A business can write off 40% of the system cost against taxable profit in year one — a real cash tax shield, not available on most other capital equipment.
Commercial and industrial DISCOM tariffs in Telangana run higher per unit than residential slabs. Every unit a rooftop system generates offsets a more expensive unit — so paper payback is faster than a similarly-sized residential system, even with zero subsidy.
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