1. What is Machine Power Consumption?

Definition: This calculator estimates the energy consumed by a machine based on its power rating and operating time.

Purpose: It helps businesses and homeowners understand and predict electricity usage for better energy management and cost estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kilowatt-hours)
• \( P \) — Machine power (watts)
• \( t \) — Operating time (hours)

Explanation: The machine's power is multiplied by operating time to get watt-hours, then divided by 1000 to convert to kilowatt-hours (kWh).

3. Importance of Power Consumption Calculation

Details: Understanding energy usage helps in budgeting electricity costs, comparing machine efficiency, and reducing energy waste.

4. Using the Calculator

Tips: Enter the machine's power rating in watts and operating time in hours. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find a machine's power rating?
A: Check the nameplate, specifications sheet, or manufacturer's documentation. It's often listed in watts (W) or kilowatts (kW).

Q2: How accurate is this calculation?
A: It provides theoretical consumption. Actual usage may vary based on load, efficiency, and operating conditions.

Q3: What if my machine has variable power?
A: Use average power consumption or calculate for different operating modes separately.

Q4: How do I convert the result to cost?
A: Multiply kWh by your electricity rate (per kWh) from your utility bill.

Q5: What's a typical power rating for common machines?
A: Example ranges: Laptop (50-100W), Refrigerator (100-400W), Air Conditioner (1000-5000W).