LIB C&I ESS ROI Calculator (v3.9)
Cut Diesel. Cut Bills. See Your Savings in 2 Minutes.
LIB Commercial & Industrial ESS ROI calculator (India) — Year-1 view for quick decisions.
Your inputs
State (defaults)
Backup mode
DG present
No DG (plant stops)
DG / outage hours per day
If No DG, this is downtime hours.
Outage-discharge window (hours)
Auto (follows DG hours)
Genset size / connected load (kVA)
Observed peak (kW)
Contract demand (kVA)
Target charge hours per day
Charging source
Grid off-peak (state)
Solar RT / Solar OA
Custom
Charging cost (₹/kWh)
Round-trip efficiency η
i
Diesel price (₹/L)
DG specific fuel consumption (L/kWh)
i
DG O&M (₹/kWh)
i
Cycles per day — cap
i
Capex (₹/kWh)
i
AMC — Year 1 (₹ per 100 kWh)
i
Recommended (best ROI)
—
Cabinet options (tap to compare)
PCS (kW)
Auto (≈0.5C of cabinet)
Charging headroom: —
Calculate
Reset
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📥 Save snapshot
Snapshot shows Year-1 only. Full 8-year projection will be in the PDF report (later).
Results snapshot
Annual savings
₹0
Payback (months)
—
Battery OPEX (₹/kWh)
₹—
DG OPEX (₹/kWh)
—
Annual kWh displaced
0
CO₂ avoided (t/yr)
0.0
Assumptions used
Mode
—
Charging source
—
State off-peak (₹/kWh)
—
State peak (₹/kWh)
—
Battery η
—
MD rate (₹/kVA/mo)
—
Recommended cabinet
—
Capex (₹)
—
Coverage of DG/outage window
—
Also viable (near-optimal)
—
Inputs summary
DG / outage hours
—
Discharge window
—
Genset / load
—
Observed peak
—
Contract demand
—
Charging cost
—
Snapshot time
—
We assume you’ll charge off-peak. If (Observed peak + PCS) hits during peak hours, you may touch MD. Advisory only; it doesn’t change payback here.