1. What is a kW per Hour Cost Calculator?

Definition: This calculator estimates the hourly cost of electricity based on power consumption in kilowatts and the cost per kilowatt-hour.

Purpose: It helps homeowners, businesses, and energy professionals determine electricity costs for appliances, equipment, or entire facilities.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Cost per hour ($ or £)
• \( P_{kW} \) — Power consumption (kilowatts)
• \( C_{kWh} \) — Cost per kilowatt-hour ($/kWh or £/kWh)

Explanation: The power consumption is multiplied by the electricity rate to determine the hourly operating cost.

3. Importance of kW Cost Calculation

Details: Accurate cost estimation helps with budgeting, energy efficiency decisions, and comparing operating costs of different equipment.

4. Using the Calculator

Tips: Enter the power consumption in kW and the cost per kWh (default $0.12). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my appliance's kW rating?
A: Check the nameplate or specification sheet. For watts, divide by 1000 to get kW.

Q2: What's a typical cost per kWh?
A: Residential rates average $0.12-$0.20/kWh in the US, but check your utility bill for exact rates.

Q3: Can I calculate daily/monthly costs with this?
A: Multiply the hourly cost by operating hours (e.g., 24 for daily, 720 for monthly).

Q4: Does this include demand charges or other fees?
A: No, this only calculates energy consumption costs. Commercial users may have additional charges.

Q5: How accurate is this calculation?
A: It's precise for constant loads. For variable loads, consider using average consumption.