Electricity Cost Formula:
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Definition: This calculator estimates the electricity cost of running an electric heater in the UK based on wattage, usage time, and electricity price.
Purpose: It helps UK residents understand and predict the running costs of their electric heating appliances.
The calculator uses the formula:
Where:
Explanation: The formula converts watt-hours to kilowatt-hours (dividing by 1000) then multiplies by the electricity rate.
Details: Understanding running costs helps with budgeting and making informed decisions about heating usage, especially during winter months.
Tips: Enter the heater wattage (found on the appliance), usage time in hours, and current electricity price (default £0.34/kWh). All values must be > 0.
Q1: What's the average electricity price in the UK?
A: As of 2023, the average is about £0.34 per kWh, but this varies by supplier and tariff.
Q2: How can I reduce my electric heating costs?
A: Use timers, lower thermostat settings, improve insulation, and consider more efficient heating methods.
Q3: What's the wattage of typical electric heaters?
A: Most range from 500W (small) to 3000W (large), with 2000W being common for medium rooms.
Q4: Does this include standing charges?
A: No, this calculates only the usage cost. Your bill will also include daily standing charges.
Q5: How accurate is this calculation?
A: It provides a good estimate, but actual costs may vary based on thermostat cycling and voltage fluctuations.