Diesel Generator vs Solar + Battery (BESS) Calculator
Compare the steep ₹28–₹36/kWh cost of diesel generator power with clean Solar PV + Battery Energy Storage Systems (BESS) producing power at ₹6–₹8/kWh.
Replacing Dirty Diesel with Solar + BESS in India
Commercial & industrial establishments in India with frequent power cuts or captive DG requirements face enormous fuel bills:
Diesel Power Cost: A typical 50 kVA DG set consumes ~12 Litres of diesel per hour, costing ₹28 to ₹35 per unit (kWh).
Solar + BESS Cost: Levelized Cost of Energy (LCOE) over 15 years is just ₹6.50 to ₹8.50 per unit.
Carbon & ESG Impact: Eliminates hundreds of metric tonnes of CO2 and toxic diesel exhaust fumes every year.
Formula
DG Unit Cost = (Diesel Price × Litres/Hour) / Average kW Output Annual DG Fuel Outflow = Litres/Hour × Running Hours/Day × 365 × Diesel Price Solar + BESS Payback (Years) = Total System CapEx / Annual Fuel Savings
Frequently Asked Questions
Yes! Modern Lithium-Iron-Phosphate (LFP) BESS systems with hybrid inverters switch over within 10–20 milliseconds (zero interruption) and handle heavy factory motor inrush currents seamlessly.
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Solar PV panels are warrantied for 25 years with 80%+ output retention. Commercial LFP battery storage provides 10 to 15 years of daily cycling life.
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☀️ Diesel Generator vs Solar + Battery (BESS) Calculator