Start from your consumption, not from a product list.
Two doors in. Tell us what you run and for how long, or give us the spec you have already settled on. Either way you get a sized pack, the arithmetic behind it, a tax-correct price valid for seven days, and the payback against whatever you are running today.
- 0180 kW connected x 0.7 diversity = 56 kW actually running.
- 0256 kW x 4 h = 224 kWh at the load.
- 03Divided by 0.92 inverter efficiency = 243.48 kWh out of the battery.
- 04At 90% depth of discharge and 1.1x ageing headroom = 297.58 kWh nominal.
- · This consignment is over 200 kg, so freight is quoted per booking rather than computed.
What we would build
The best value we would build, plus a larger and a smaller option. Pick one and the price, freight and payback below follow it.
3 × HV String 358-280
- HV String 358-280 × 3
- ₹31,50,000
- Taxable value
- ₹31,50,000
- CGST @ 9%
- ₹2,83,500
- SGST @ 9%
- ₹2,83,500
- Total
- ₹37,17,000
- Booking depositNow, to reserve the build slot₹25,000
- Advance on confirmationAgainst proforma, by NEFT or RTGS₹14,61,800
- Balance before dispatchBefore the consignment leaves our works₹22,30,200
UN3480 · Class 9 — Miscellaneous dangerous goods. Surface freight only — nothing we sell can travel by air. This consignment needs an e-way bill; we raise it before dispatch.
What is this replacing?
Every number below is yours to change. The arithmetic is shown at the bottom.
- Energy cycled a year
- 81,288 kWh
- Saving a year
- ₹15,80,239
- Lifetime saving over 20 years
- ₹3.16 Cr
Show the arithmetic
- 01Diesel: 0.28 L/kWh x ₹100/L = ₹28/kWh of fuel.
- 02Plus ₹0.4 lube and ₹1.6 maintenance = ₹30/kWh from the genset.
- 03Battery: grid at ₹9.5/kWh over 0.9 round-trip efficiency = ₹10.56/kWh delivered.
- 0481288 kWh a year x ₹19.44/kWh saved = ₹1580238.72.
- 05₹3150000 capex over ₹1580238.72 a year = 24 months to payback.
Capex used: ₹31,50,000 ex-GST, over a 6,000-cycle life at 270.96 kWh usable per cycle. A business buyer takes the GST as input credit, which is why the payback is computed ex-GST.
Prices come from price book pb-2026-09 and are valid for seven days from 17 Sept 2026. Cell prices move; a quote past its validity is re-struck rather than honoured. Freight assumes ground-floor delivery with unloading by the consignee. Installation, civil work and any inverter or PCS are quoted separately.