Operating Cost Formula:
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Definition: This calculator estimates the electricity cost of operating a mini-split air conditioning system based on power consumption, runtime, and electricity rates.
Purpose: It helps homeowners and businesses estimate the operating costs of their mini-split systems for better energy budgeting.
The calculator uses the formula:
Where:
Explanation: The power consumption multiplied by operating hours gives total kWh used, which is then multiplied by the cost per kWh to determine total operating cost.
Details: Understanding operating costs helps in comparing systems, budgeting for energy expenses, and identifying potential savings through efficiency improvements.
Tips: Enter the mini-split's power consumption in kW, estimated operating time in hours, and your local electricity rate (default $0.12/kWh). All values must be > 0.
Q1: How do I find my mini-split's power consumption?
A: Check the manufacturer's specifications or nameplate rating. Many units list both cooling and heating power consumption.
Q2: What's a typical electricity rate?
A: U.S. average is about $0.12-$0.15/kWh, but check your utility bill for exact rates as they vary by location and provider.
Q3: Should I use peak or average power consumption?
A: For most accurate results, use average power consumption which accounts for cycling on and off. Peak consumption gives worst-case estimates.
Q4: How can I reduce operating costs?
A: Consider higher SEER-rated units, proper sizing, regular maintenance, and using programmable thermostats to reduce runtime.
Q5: Does this include other costs like maintenance?
A: No, this only calculates electricity costs. Additional costs like maintenance, repairs, and filters should be considered separately.