kWh to Propane Cost Comparison

Propane Cost Formula:

\[ C_{propane} = \frac{E_{kWh} \times CV_{propane} \times C_{fuel}}{3.6 \times \eta} \]

Energy Consumption:

kWh

Propane Calorific Value:

MJ/m³

Propane Cost:

₱/m³ or $/m³

System Efficiency:

factor (0-1)

Equivalent Propane Cost: ₱ or $

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1. What is kWh to Propane Cost Comparison?

Definition: This calculator compares the cost of electrical energy (kWh) to the equivalent cost of propane energy.

Purpose: It helps determine whether using electricity or propane is more cost-effective for heating or energy needs.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ C_{propane} = \frac{E_{kWh} \times CV_{propane} \times C_{fuel}}{3.6 \times \eta} \]

Where:

$ C_{propane} $ — Equivalent propane cost (₱ or $)
$ E_{kWh} $ — Electrical energy consumption (kWh)
$ CV_{propane} $ — Calorific value of propane (~93 MJ/m³)
$ C_{fuel} $ — Cost of propane per cubic meter (₱/m³ or $/m³)
$ \eta $ — System efficiency factor (0-1)

Explanation: The formula converts electrical energy to equivalent propane energy while accounting for system efficiency differences.

3. Importance of Energy Cost Comparison

Details: Comparing energy costs helps make informed decisions about energy sources, potentially saving significant money on utility bills.

4. Using the Calculator

Tips: Enter your electrical consumption in kWh, propane calorific value (default 93 MJ/m³), current propane cost, and system efficiency (default 0.9). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical calorific value of propane?
A: Propane typically has a calorific value of about 93 MJ per cubic meter, but this can vary slightly.

Q2: How do I determine system efficiency?
A: Check appliance specifications or use 0.9 for modern efficient systems, 0.7-0.8 for older systems.

Q3: Why is 3.6 in the formula?
A: This converts MJ to kWh (1 kWh = 3.6 MJ) for consistent energy units.

Q4: Can I compare other fuels with this?
A: Yes, but you'll need to adjust the calorific value and cost for the specific fuel type.

Q5: Does this include installation or equipment costs?
A: No, this only compares operational energy costs. Consider upfront costs separately.