Energy Consumption Formula:
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Definition: This calculator estimates the energy consumption in kilowatt-hours (kWh) for RV generators based on power usage and duration.
Purpose: It helps RV owners and travelers plan their power usage and generator needs for trips and off-grid living.
The calculator uses the formula:
Where:
Explanation: The power consumption in watts is multiplied by usage time in hours, then divided by 1000 to convert to kilowatt-hours.
Details: Proper energy estimation helps prevent power shortages, optimize generator usage, and plan battery capacity for boondocking.
Tips: Enter the appliance/device power consumption in watts and the expected usage time in hours. All values must be > 0.
Q1: How do I find my appliance's power consumption?
A: Check the appliance label or manual for wattage, or use a watt meter for accurate measurement.
Q2: What's a typical power consumption for RV appliances?
A: LED lights (5-20W), fridge (100-600W), AC (1000-3500W), microwave (600-1200W).
Q3: Should I use peak or average power consumption?
A: For most accurate results, use peak consumption for short-duration items and average for long-running devices.
Q4: How does this relate to my generator capacity?
A: Compare total kWh needs with your generator's fuel efficiency (e.g., 0.5 gal/hour at 50% load).
Q5: Can I use this for battery capacity planning?
A: Yes, but account for battery depth of discharge (typically 50% for lead-acid) and inverter efficiency (~90%).