1. What is the Power Formula?

The power formula P = E/t calculates power consumption per hour, where P is power in kilowatts (kW), E is energy in kilowatt-hours (kWh), and t is time in hours. This equation helps determine the rate of energy consumption over time.

2. How Does the Calculator Work?

The calculator uses the power formula:

Where:

• \( P \) — Power (kW)
• \( E \) — Energy (kWh)
• \( t \) — Time (hours)

Explanation: This formula calculates the average power consumption by dividing the total energy consumed by the time period over which it was consumed.

3. Importance of Power Calculation

Details: Calculating power usage per hour is essential for energy management, cost estimation, electrical system design, and understanding appliance efficiency. It helps in budgeting electricity costs and identifying energy-intensive devices.

4. Using the Calculator

Tips: Enter energy consumption in kilowatt-hours (kWh) and time duration in hours. Both values must be positive numbers. The calculator will compute the average power consumption in kilowatts (kW).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between power and energy?
A: Power (kW) is the rate at which energy is consumed, while energy (kWh) is the total amount consumed over time. Power is instantaneous, while energy is cumulative.

Q2: Can I use this for solar panel calculations?
A: Yes, this formula can help determine the power output needed from solar panels based on your energy consumption over time.

Q3: How accurate is this calculation?
A: This provides average power consumption. For devices with variable power draw, the actual instantaneous power may vary.

Q4: What if I have minutes instead of hours?
A: Convert minutes to hours by dividing by 60. For example, 30 minutes = 0.5 hours.

Q5: Can this calculate cost of electricity?
A: Not directly, but you can multiply the result (kW) by your electricity rate ($/kWh) and time to estimate cost.