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Energy Consumption Formula:
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The energy consumption formula E = P × t calculates the total energy used by an electrical device, where E is energy in kilowatt-hours (kWh), P is power in kilowatts (kW), and t is time in hours. This calculation is essential for understanding electricity usage and costs in Pakistan.
The calculator uses the energy consumption formula:
Where:
Explanation: This simple multiplication gives the total energy consumed, which is directly proportional to both the power rating of the device and the duration of its operation.
Details: Accurate energy calculation helps Pakistani consumers understand their electricity bills, manage energy usage efficiently, and estimate costs based on current electricity tariffs in the country.
Tips: Enter the power rating of your appliance in kW and the duration of use in hours. For appliances rated in watts, divide by 1000 to convert to kW (e.g., 1500W = 1.5kW).
Q1: How do I convert watts to kilowatts?
A: Divide the watt value by 1000. For example, a 1500W appliance equals 1.5kW.
Q2: How does this relate to my electricity bill in Pakistan?
A: Electricity companies in Pakistan charge per kWh consumed. Your total bill is based on the sum of all energy consumed multiplied by the applicable tariff rate.
Q3: What's the average power consumption of common appliances?
A: LED bulbs: 7-15W, Fans: 50-80W, Refrigerators: 100-400W, ACs: 1000-2000W. Always check the manufacturer's rating for accurate calculations.
Q4: Does this calculation account for power factor?
A: This simple formula assumes a power factor of 1 (ideal conditions). For precise industrial calculations, power factor should be considered.
Q5: How can I reduce my energy consumption?
A: Use energy-efficient appliances, turn off devices when not in use, utilize natural light, and maintain your electrical equipment properly.