1. What is a Solar Panel kWh Production Calculator?

Definition: This calculator estimates the energy production of a solar panel system based on its size, sunlight hours, and efficiency.

Purpose: It helps homeowners, businesses, and solar installers estimate daily energy production from solar panels.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{kWh} \) — Energy production (kilowatt-hours)
• \( \text{Size} \) — Solar system size (kilowatts)
• \( \text{Hours} \) — Peak sunlight hours
• \( \text{Efficiency} \) — System efficiency factor (0-1)

Explanation: The system size is multiplied by sunlight hours and adjusted for system efficiency to estimate daily production.

3. Importance of Solar Production Calculation

Details: Accurate production estimates help size solar systems appropriately, calculate return on investment, and plan energy usage.

4. Using the Calculator

Tips: Enter the system size in kW, average daily sunlight hours, and system efficiency (default 0.75). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are typical sunlight hours?
A: This varies by location - 3-4 hours in northern areas, 5-6 in sunny regions. Check solar maps for your area.

Q2: What affects system efficiency?
A: Panel quality, temperature, wiring losses, inverter efficiency, and shading all impact total system efficiency.

Q3: Is this daily or annual production?
A: This calculates daily production. Multiply by 365 for annual estimates (adjust for seasonal variations).

Q4: How do I find my system size?
A: Add up the wattage of all panels (e.g., 20 × 300W panels = 6,000W or 6kW system).

Q5: Does this account for weather conditions?
A: No, this is a theoretical maximum. Reduce sunlight hours for cloudy days or use historical weather data.