Cost per kWh Formula:
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Definition: This calculator determines the cost per kilowatt-hour (kWh) of electricity generated by a fuel-powered generator.
Purpose: It helps compare generator operating costs with grid electricity and evaluate generator efficiency.
The calculator uses the formula:
Where:
Explanation: The total fuel cost is divided by the total energy produced to get the cost per unit of electricity.
Details: Understanding generator operating costs helps in budgeting, comparing with utility rates, and evaluating generator efficiency.
Tips: Enter the total fuel cost and the total energy produced by the generator. Both values must be > 0.
Q1: What's included in fuel cost?
A: Include all fuel expenses for the operation period. For propane/natural gas generators, use the cost per gallon or therm.
Q2: How do I measure energy produced?
A: Use a kWh meter or multiply generator output (kW) by operating hours. Check generator specifications for output ratings.
Q3: What's a typical cost per kWh for generators?
A: Typically $0.15-$0.50/kWh for diesel, higher for gasoline. Grid power is often cheaper at $0.10-$0.20/kWh.
Q4: Does this include maintenance costs?
A: No, this is just fuel cost. Add maintenance (typically $0.01-$0.05/kWh) for total operating cost.
Q5: How can I reduce my generator's cost per kWh?
A: Improve efficiency by proper sizing, regular maintenance, using eco-mode, and choosing fuel-efficient models.