1. What is Power Consumption per Hour?

Definition: This calculator estimates the energy consumption in kilowatt-hours (kWh) based on the power rating of an electrical device.

Purpose: It helps users understand how much electricity their devices use, which is useful for energy management and cost estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kilowatt-hours)
• \( P \) — Power rating (watts)

Explanation: The power in watts is divided by 1000 to convert to kilowatts, which gives the energy consumption per hour.

3. Importance of Power Consumption Calculation

Details: Understanding power consumption helps in estimating electricity costs, comparing device efficiency, and managing energy usage.

4. Using the Calculator

Tips: Enter the power rating of your device in watts. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find a device's power rating?
A: Check the device's label, manual, or specifications sheet. It's often listed in watts (W) or kilowatts (kW).

Q2: Is this for continuous or peak power?
A: This calculates for continuous power draw. Some devices have higher peak power when starting up.

Q3: How do I calculate cost from this?
A: Multiply the kWh result by your electricity rate (per kWh) and by hours of use.

Q4: Does this account for power factor?
A: No, this is a basic calculation. For precise measurements, consider power factor for certain devices.

Q5: What's the difference between watts and watt-hours?
A: Watts measure power (rate of energy use), while watt-hours measure energy (power × time).