1. What is Power Consumption per Hour?

Power consumption per hour measures how much electrical energy a device uses in one hour, expressed in kilowatt-hours (kWh). It helps estimate energy costs and efficiency of electrical appliances.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( kWh \) — Kilowatt-hours (energy consumption per hour)
• \( P \) — Power in watts (W)

Explanation: Since 1 kilowatt equals 1000 watts, dividing wattage by 1000 converts it to kilowatt-hours for one hour of operation.

3. Importance of Power Consumption Calculation

Details: Calculating power consumption helps estimate electricity costs, compare appliance efficiency, and manage energy usage for cost savings and environmental impact.

4. Using the Calculator

Tips: Enter the device's power rating in watts (usually found on the label). The calculator will show the energy consumed per hour in kWh.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my appliance's power rating?
A: Check the label or manual for wattage (W). If only amps (A) and volts (V) are given, multiply them (P = A × V).

Q2: How can I calculate daily/monthly consumption?
A: Multiply hourly kWh by hours used per day/month. For example: 0.5 kWh × 4 hours/day = 2 kWh/day.

Q3: What's the difference between kW and kWh?
A: kW is power (rate of energy use), kWh is energy (power × time). Like speed vs distance.

Q4: Do all appliances use constant power?
A: No, devices like refrigerators cycle on/off. Use average power or energy guide labels for these.

Q5: How much does 1 kWh cost?
A: Costs vary by location. Check your electricity bill for the rate (typically $0.10-$0.30 per kWh).