1. What is a kW vs kWh Calculator?

Definition: This calculator converts between power (kW) and energy (kWh) by accounting for time of usage.

Purpose: It helps understand the relationship between instantaneous power and energy consumption over time.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: Energy is power multiplied by time. 1 kW running for 1 hour equals 1 kWh of energy.

3. Difference Between kW and kWh

kW (kilowatt): Measures power - the rate at which energy is used at any given moment.

kWh (kilowatt-hour): Measures energy - the total amount of power used over time.

4. Using the Calculator

Tips: Enter the power in kW and time in hours to calculate energy consumption in kWh.

5. Frequently Asked Questions (FAQ)

Q1: Why is the distinction between kW and kWh important?
A: kW tells you capacity, kWh tells you consumption. Utility bills charge for kWh, not kW.

Q2: How many kWh is 1 kW for 24 hours?
A: 24 kWh (1 kW × 24 hours = 24 kWh).

Q3: What's the difference between kW and kWh in solar systems?
A: Solar panels are rated in kW (capacity), but their output is measured in kWh (production).

Q4: How do I convert kWh back to kW?
A: Divide kWh by hours (kW = kWh ÷ hours).

Q5: Why do electric vehicles use kWh?
A: kWh measures battery capacity (energy storage) just like gallons measure fuel tank capacity.