Energy Formula:
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Definition: This calculator converts power in kilowatts (kW) to energy in kilowatt-hours (kWh) by factoring in the time duration.
Purpose: It helps in determining energy consumption or production over time, useful for electrical systems, appliances, and power generation.
The calculator uses the formula:
Where:
Explanation: Energy is simply the product of power and time. 1 kWh equals 1 kW of power used for 1 hour.
Details: Accurate energy calculations help in electricity billing, system sizing, energy efficiency assessments, and cost estimations.
Tips: Enter the power in kilowatts and time in hours. Both values must be positive numbers.
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 do I convert minutes to hours for the time input?
A: Divide minutes by 60 (e.g., 30 minutes = 0.5 hours).
Q3: Can I use this for solar panel calculations?
A: Yes, input the panel's kW rating and hours of operation to estimate daily kWh production.
Q4: What's a typical household appliance power rating?
A: Refrigerator: 0.1-0.2 kW, Microwave: 1-1.5 kW, AC unit: 3-5 kW.
Q5: How does this relate to electricity costs?
A: Multiply kWh by your electricity rate (e.g., $0.12/kWh) to estimate cost.