1. What is a Solar Energy Calculator?

Definition: This calculator estimates the energy produced by a solar system based on its power output and operating time.

Purpose: It helps solar energy users and installers determine energy production for system sizing and performance analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy produced (watt-hours, Wh)
• \( P \) — Power output (watts, W)
• \( T \) — Time duration (hours, h)

Explanation: The solar power output is multiplied by the operating time to calculate total energy production.

3. Importance of Solar Energy Calculation

Details: Accurate energy estimation helps in system design, battery sizing, and understanding potential savings from solar installations.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between watts and watt-hours?
A: Watts measure power (instantaneous rate), while watt-hours measure energy (power × time).

Q2: How do I find my solar system's power output?
A: Check your solar panel specifications or inverter display for rated power in watts.

Q3: Should I use peak sun hours or actual hours?
A: For theoretical calculations, use peak sun hours. For actual production, use the exact operating time.

Q4: How do I convert watt-hours to kilowatt-hours?
A: Divide the watt-hour value by 1000 (1 kWh = 1000 Wh).

Q5: Does this account for system efficiency losses?
A: No, this calculates theoretical maximum. For real-world estimates, multiply result by 0.75-0.85 to account for losses.