1. What is the MWh to kW Conversion?

The MWh to kW conversion is used to calculate the power output of a battery system based on its energy capacity and discharge time. This helps in determining how much power can be delivered over a specific period.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Energy \) — Battery energy capacity in megawatt-hours (MWh)
• \( Time \) — Discharge time in hours (h)
• \( 1000 \) — Conversion factor from MW to kW

Explanation: The equation converts the total energy capacity to power output by dividing by the time period, while converting from megawatts to kilowatts.

3. Importance of Battery Power Calculation

Details: Calculating power output from energy capacity is essential for designing battery systems, determining system sizing, and ensuring proper power delivery for specific applications.

4. Using the Calculator

Tips: Enter energy in MWh and time in hours. Both values must be positive numbers. The calculator will show the continuous power output in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between energy (MWh) and power (kW)?
A: Energy is capacity (like a fuel tank), while power is the rate of energy delivery (like fuel flow rate). MWh measures total energy, kW measures instantaneous power.

Q2: How does this relate to battery runtime?
A: For a given power draw (kW), you can calculate runtime by rearranging the formula: Time (h) = Energy (MWh) × 1000 / Power (kW).

Q3: What's a typical MWh to kW ratio for batteries?
A: Common battery systems might have 4-hour duration (1 MWh : 250 kW) or 2-hour duration (1 MWh : 500 kW), depending on design.

Q4: Does this account for battery efficiency?
A: This calculates theoretical power. Real-world systems will have efficiency losses (typically 85-95% for lithium-ion batteries).

Q5: Can I use this for other energy storage systems?
A: Yes, the formula applies to any energy storage system where you need to convert between energy capacity and power output.