1. What is kWh Calculation?

The kWh (kilowatt-hour) calculation determines energy consumption by multiplying power in kilowatts (kW) by time in hours. It's the standard unit for measuring electrical energy usage.

2. How Does the Calculator Work?

The calculator uses the basic energy formula:

Where:

• \( \text{kW} \) — Power in kilowatts
• \( \text{Hours} \) — Time in hours

Explanation: One kilowatt-hour equals the energy consumed by a 1 kW device running for one hour.

3. Importance of kWh Calculation

Details: kWh calculations are essential for understanding electricity consumption, calculating utility bills, and assessing energy efficiency of appliances.

4. Using the Calculator

Tips: Enter power in kW (1 kW = 1000 watts) and time in hours. For minutes, convert to hours (30 min = 0.5 hours). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert watts to kW?
A: Divide watts by 1000 (1 kW = 1000 watts). For example, 1500 watts = 1.5 kW.

Q2: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), while kWh measures energy (power × time).

Q3: How many kWh does a house use per day?
A: Average US household uses about 30 kWh per day, but this varies greatly by location and appliances.

Q4: Can I use this for solar panel calculations?
A: Yes, this formula works for both consumption and production (e.g., a 5 kW solar system running for 4 hours produces 20 kWh).

Q5: How accurate is this calculation?
A: Perfectly accurate for constant power draw. For variable loads, you may need to calculate separately for different time periods.