A precision-engineered +300 kWp solar strategy (600 kWp total, DG raised to 400 kW) that turns LESCO's tariff into a 2.6-year payback — built on verified 12-month consumption and your JUN 2026 bill.
Google Maps satellite view confirms a large flat-roof industrial complex (adjacent to Fabeline Horticulture) with existing rooftop solar already installed — validating the ~61 kWp plant derived from 12-month export data.
Adding 300 kWp (DG raised to 400 kW) self-consumes the site's whole-day load — displacing Rs. 1.05M/mo of imported energy. Even if LESCO blocks the free regulatory levers, solar alone returns 10.46M/yr at a 2.6-yr payback. The levers are upside, not the base case.
E-Tax & F-Tax waived → Rs. 3.54M/yr off the bill with zero hardware.
Full solar collapses demand charge → Rs. 3.66M+/yr from FIX-CHRG alone.
Peak (2–3 hr) export is capped, but whole-day self-consumption is uncapped — more panels displace imported units at Rs. 25.23 each.
On the JUN 2026 bill, Rs. 1,024,553 of the Rs. 2,073,424 total — 49% — was non-energy charges: fixed demand, E-Tax and F-Tax. That is exactly the cost pool solar and the two levers attack.
| Component | Amount (Rs.) |
|---|---|
| Total Bill | 2,073,424 |
| Energy (COE) — 41,567 units | 1,048,871 |
| Fixed (FIX-CHRG) | 365,000 |
| E-Tax | 238,604 |
| F-Tax | 56,142 |
| All non-energy charges | 1,024,553 |
| DG Capacity | 204.60 kW |
Non-energy charges are structurally fixed — but levers 1 & 2 legally remove or shrink them. That is where the saving lives.
Client confirms 300 kWp on-site (visible on satellite). Monthly generation ≈ 34,560 kWh against site consumption ≈ 76,127 kWh — so 41,567 units/mo are still imported at Rs. 25.23 each. Adding 300 kWp (total 600, DG raised to 400 kW) lifts generation to 69,120 kWh/mo, cutting import to just 7,007 units/mo.
The single highest-return action needs no panels. By registering for Sales Tax, E-Tax and F-Tax are waived — a recurring monthly relief of Rs. 294,746 that compounds to Rs. 3,536,952 every year, indefinitely.
Regulatory lever only. Frees cash immediately — and if LESCO blocks it, the +300 kWp solar still delivers 10.46M/yr on its own.
Sales-Tax registration is the opening move of the rollout. It delivers ~Rs. 3.54M/yr before a single module is mounted, de-risking the capital decision on the generation side.
With 300 kWp already online (over the DG/EXP-MDI caps), MDI import is already low. Filing the MDI revision formalises it: FIX-CHRG falls from Rs. 365,000/month to Rs. 36,000–60,000 — a monthly saving of Rs. 305,000–329,000, i.e. Rs. 3,660,000–3,948,000 per year.
Combined with the Rs. 3.54M E-Tax/F-Tax waiver, total identified annual saving reaches Rs. 14,001,686 — but even without the levers, +300 kWp alone returns Rs. 10.46M/yr.
Client confirms DG capacity can be lifted 204.60 → 400 kW. Adding 300 kWp (total 600) sits fully under that cap. Because total generation (69,120 KWH/mo) stays below site consumption (76,127), every unit self-consumes — the zero-export device never curtails, and peak-only output is bypassed by all-day production.
The +300 kWp addition (total 600 kWp, DG raised to 400 kW), priced at Rs. 89/W (Standard) and Rs. 99/W (Premium). Against a conservative Rs. 10.46M/yr saving (levers-fail case), payback lands at 2.6 years — and rises to 14.0M/yr if the free regulatory levers land.
Rs. 26,700,000 · robust commercial string inverter architecture with the zero-export device set to 400 kW.
Rs. 29,700,000 · enhanced monitoring, extended warranty & priority O&M for maximum uptime.
Inverters are housed in a conditioned room for thermal stability and serviceability. Continuous monitoring surfaces generation, export and MDI live — so every rupee of the Rs. 10.46M/yr base case (14.0M with levers) is verifiable.
At 600 kWp total, generation (69,120 kWh/mo) stays below site use (76,127) — every unit self-consumes, displacing imported energy at Rs. 25.23. Peak-hour export is capped by the zero-export device, but whole-day production is not.
Per-string yield, MDI tracking and fault alerts — the data backbone behind the payback claim.
Solar does the heavy lifting (10.46M/yr even if LESCO blocks the levers); the free regulatory levers are upside on top.
File the DG enhancement with LESCO — unlocks the +300 kWp addition.
≈833 × Trina 720W TOPCon on available rooftop; zero-export device set to 400 kW. Self-consumes fully, no curtailment.
Waive E/F tax (Rs. 3.54M/yr) and cut FIX-CHRG (Rs. 3.66M+/yr) — pushes saving to 14.0M/yr at zero hardware cost.
Align mounting and civil works with the 55×77 PEB envelope for a clean, permitted install.
A verified, compliant +300 kWp roadmap (600 kWp total, DG raised to 400 kW) delivering Rs. 10.46M/yr in savings with a 2.6-year payback — Rs. 14.0M/yr if the free regulatory levers land — engineered and delivered by Fusion Developers.