Cost per kWh Formula:
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Definition: This calculator determines the cost per kilowatt-hour (kWh) of energy from heating oil based on the fuel cost and its energy content.
Purpose: It helps homeowners and businesses compare heating oil costs with other energy sources and budget more accurately.
The calculator uses the formula:
Where:
Explanation: The fuel cost is divided by the energy content to determine how much each unit of energy costs.
Details: Calculating cost per kWh allows for accurate comparison between different energy sources and helps in making informed decisions about heating systems.
Tips: Enter the fuel cost in £ and energy content in kWh (default 10.35 kWh for heating oil). All values must be > 0.
Q1: What's the typical energy content of heating oil?
A: Heating oil typically contains about 10.35 kWh per litre, but this can vary slightly by specific formulation.
Q2: Why calculate cost per kWh instead of just cost per litre?
A: Cost per kWh allows direct comparison with electricity, gas, and other energy sources that may have different units.
Q3: How accurate is this calculation?
A: It provides a good estimate, but actual efficiency depends on your boiler's performance and system conditions.
Q4: Should I include delivery charges in the fuel cost?
A: For most accurate results, include all costs associated with obtaining the fuel (delivery, taxes, etc.).
Q5: How does this compare to other fuels?
A: Electricity is typically around £0.34/kWh, natural gas about £0.10/kWh, and heating oil often falls between these values.