1. What is the Energy Consumption Formula?

The energy consumption formula calculates the amount of energy used by electrical devices in kilowatt-hours (kWh). It is essential for understanding electricity usage and costs in the UK.

2. How Does the Calculator Work?

The calculator uses the energy consumption formula:

Where:

• \( E \) — Energy consumption (kWh)
• \( P \) — Power rating of the device (kW)
• \( t \) — Time the device is used (hours)

Explanation: The formula multiplies the power consumption of a device by the duration of use to determine total energy consumed.

3. Importance of Energy Calculation

Details: Calculating energy consumption helps in estimating electricity bills, identifying energy-efficient devices, and managing energy usage for cost savings and environmental benefits.

4. Using the Calculator

Tips: Enter power in kilowatts (kW) and time in hours. Both values must be positive numbers. For devices rated in watts, convert to kW by dividing by 1000.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert watts to kilowatts?
A: Divide the watt value by 1000. For example, 1500 watts = 1.5 kW.

Q2: What is the average electricity cost per kWh in the UK?
A: Electricity prices vary, but the average is around £0.20-£0.30 per kWh (check current rates with your provider).

Q3: Can I use this for multiple devices?
A: Calculate each device separately and sum the results for total energy consumption.

Q4: How accurate is this calculation?
A: The calculation provides theoretical energy consumption. Actual usage may vary based on device efficiency and usage patterns.

Q5: Does this work for all electrical devices?
A: Yes, the formula applies to any electrical device when you know its power rating and usage time.