Energy Formula:
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Definition: This calculator converts power (kW) and time (hours) into energy units (kWh).
Purpose: It helps determine energy consumption or production based on power rating and operating time.
The calculator uses the formula:
Where:
Explanation: Energy is simply the product of power and time when using consistent units.
Details: Accurate energy calculations are essential for electricity billing, system sizing, and energy efficiency assessments.
Tips: Enter the power in kilowatts and time in hours. Both values must be positive numbers.
Q1: How do I convert watts to kilowatts?
A: Divide watts by 1000 (1 kW = 1000 W).
Q2: Can I use minutes instead of hours?
A: Yes, but convert minutes to hours first (divide by 60).
Q3: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), kWh measures energy (power × time).
Q4: How accurate is this calculation?
A: It's precise for constant power. For variable power, use average power over time.
Q5: Can this calculate electricity cost?
A: Multiply kWh result by your electricity rate ($/kWh) to estimate cost.