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Diesel Generator Savings
Fuel and money saved by displacing DG with solar.
FinancialCore inputs only — quick sizing with engineering defaults.
Inputs (SI units)
Results
Save & Load Project
Designs are stored privately in this browser — nothing is uploaded.
Engineering Formula
- Fuel saved = Gen × SFC [L]
- Money saved = Fuel × Price
- CO₂ avoided ≈ Fuel × 2.68 kg/L
Typical DG SFC is 0.28–0.35 L/kWh at 75% load. Below 40% load SFC balloons past 0.5 L/kWh — solar makes even more sense.
Step-by-step Calculation
- 1.Fuel
Gen × SFC4,500 L - 2.Money
Fuel × Price₹ 427,500
Design Assumptions
- • 100% solar generation displaces DG runtime.
Engineering Tips
- ◆Add DG maintenance saving of ~₹1.5/kWh.
Warnings
- ▲Peak-lopping needs hybrid inverter for seamless transfer.
Standards & References
CPCB DG normsBEE benchmarks
Related Solar Calculators
CO₂ Emissions Saved
Lifetime GHG savings from displaced grid electricity.
Grid Bill Offset
Monthly bill offset from a solar system.
Net Metering Credit
Compute net units and monthly credit / payable.
Solar Loan EMI
Reducing-balance EMI for solar financing.
ROI & Payback Period
Simple payback, ROI and lifetime net savings of a PV plant.
LCOE (Levelised Cost)
Discounted levelised cost of energy over the plant life.

