1. What is the Power Consumption Calculator?

The Power Consumption Calculator estimates the cost of electricity usage based on device wattage, usage time, and your local electricity rate. It helps you understand and manage your energy expenses.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Power consumption in watts
• \( h \) — Usage time in hours
• \( Cost/kWh \) — Electricity cost per kilowatt-hour

Explanation: The formula converts watts to kilowatts (dividing by 1000), multiplies by usage hours to get kWh, then multiplies by the cost per kWh.

3. Importance of Power Consumption Calculation

Details: Understanding power costs helps with budgeting, identifying energy-hungry appliances, and making informed decisions about energy efficiency.

4. Using the Calculator

Tips:

• Find wattage on appliance labels or specifications
• For devices with variable power, use average or maximum wattage
• UK average electricity price is about £0.34/kWh (default value)
• For monthly estimates, multiply daily usage by 30

5. Frequently Asked Questions (FAQ)

Q1: How do I find my exact electricity rate?
A: Check your energy bill or contact your supplier. Rates vary by tariff and region.

Q2: What's the difference between watts and kilowatts?
A: 1 kilowatt = 1000 watts. Electricity is typically billed per kilowatt-hour (kWh).

Q3: Should I use the standby power consumption too?
A: For complete accuracy, include standby power when devices are not in active use but still plugged in.

Q4: How can I reduce my power consumption?
A: Use energy-efficient appliances, turn off unused devices, and consider smart power strips.

Q5: Does this calculator account for VAT or standing charges?
A: No, this calculates only the consumption cost. Your actual bill includes additional charges.