Energy Formula:
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Definition: This calculator converts power in kilowatts (kW) to energy in kilowatt-hours (kWh) for a 1-hour period.
Purpose: It helps in understanding energy consumption when power usage is known for electrical devices or systems.
The calculator uses the formula:
Where:
Explanation: Since 1 kWh equals 1 kW of power used for 1 hour, the calculation is straightforward multiplication.
Details: This conversion is essential for electricity billing, energy consumption analysis, and sizing electrical systems.
Tips: Simply enter the power in kilowatts (kW) to get the energy consumption in kilowatt-hours (kWh) for one hour.
Q1: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), while kWh measures energy (total consumption over time).
Q2: How would I calculate for different time periods?
A: Multiply the result by the number of hours (e.g., for 3 hours: kWh = kW × 3).
Q3: Is this calculation affected by power factor?
A: No, this assumes pure kW (real power). For apparent power (kVA), power factor would be needed.
Q4: Can I use this for DC systems?
A: Yes, the calculation works the same for both AC and DC systems.
Q5: Why is the time period fixed at 1 hour?
A: Because kWh is defined as kW × hours, so this shows the base relationship.