Electricity Consumption Formula:
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Definition: This calculator estimates electricity usage in kilowatt-hours (kWh) based on appliance power and usage time.
Purpose: Helps Malaysian households and businesses estimate their electricity consumption for better energy management and cost estimation.
The calculator uses the formula:
Where:
Explanation: The formula converts watt-hours to kilowatt-hours (kWh), which is the standard unit for electricity billing in Malaysia.
Details: Understanding your electricity usage helps in budgeting, identifying energy-saving opportunities, and reducing electricity bills.
Tips: Enter the appliance's power rating in watts and your daily usage time in hours. All values must be > 0.
Q1: Where can I find my appliance's power rating?
A: Check the label on the appliance, user manual, or manufacturer's website. Typical ratings: LED bulb (10W), fan (50W), air conditioner (1000W).
Q2: How does this relate to my TNB bill?
A: TNB charges per kWh used. Multiply the result by your tariff rate (about RM0.22-0.57 per kWh depending on usage tier).
Q3: What's the difference between watts and kilowatts?
A: 1 kilowatt = 1000 watts. We convert to kWh because that's how electricity is billed.
Q4: Should I use average or peak power rating?
A: Use the average power consumption if available, as many appliances don't run at peak power continuously.
Q5: How can I reduce my electricity consumption?
A: Use energy-efficient appliances, reduce usage time, maintain equipment properly, and consider solar panel installation.