Energy Efficiency Formula:
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The Energy Efficiency Calculator estimates potential savings when upgrading to more energy-efficient appliances or systems. It calculates the financial benefit of reducing energy consumption based on Australian electricity rates.
The calculator uses the energy efficiency formula:
Where:
Explanation: The equation calculates the difference in energy consumption between old and new systems/appliances, then multiplies by the electricity rate to determine financial savings.
Details: Calculating energy efficiency savings helps Australian households and businesses make informed decisions about upgrading appliances, reducing energy bills, and minimizing environmental impact.
Tips: Enter old and new energy consumption in kWh, and the electricity rate in AUD per kWh. All values must be valid positive numbers.
Q1: Where can I find my electricity rate?
A: Check your electricity bill or contact your energy provider. Rates typically range from $0.20 to $0.40 per kWh in Australia.
Q2: How do I estimate energy consumption?
A: Most appliances have energy rating labels showing annual consumption. You can also use power meters to measure actual usage.
Q3: Are there government rebates for energy efficiency?
A: Yes, various Australian state and federal programs offer rebates and incentives for energy-efficient upgrades.
Q4: Does this calculator account for time periods?
A: The calculation is based on consumption values. For annual savings, use annual consumption figures.
Q5: What's a typical payback period for energy upgrades?
A: Payback periods vary widely but typically range from 2-7 years for most energy-efficient appliances in Australia.