1. What is a kWh Solar Panel Calculator?

Definition: This calculator estimates the energy production (in kilowatt-hours) of a solar panel based on its wattage and operating hours.

Purpose: It helps solar energy users and installers determine expected energy output from solar panels.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• kWh — Kilowatt-hours of energy produced
• Panel Wattage — Rated power output of the solar panel in watts
• Hours — Duration of sunlight exposure or operation time

Explanation: The panel wattage is converted to kilowatts (divided by 1000) then multiplied by hours to get total energy production.

3. Importance of Solar Energy Calculation

Details: Accurate energy production estimates help in sizing solar systems, calculating ROI, and meeting energy needs.

4. Using the Calculator

Tips: Enter the panel's rated wattage and expected daily sunlight hours. For monthly estimates, multiply daily kWh by 30.

5. Frequently Asked Questions (FAQ)

Q1: Is this actual or theoretical production?
A: This is theoretical maximum. Actual production is typically 70-90% due to efficiency losses.

Q2: How do I account for cloudy days?
A: Reduce the operating hours or multiply result by 0.7-0.9 for typical weather conditions.

Q3: What's a typical panel wattage?
A: Residential panels are typically 250-400W, commercial panels 400-500W.

Q4: How many hours of sunlight should I use?
A: Use "peak sun hours" for your location (typically 3-6 hours in most areas).

Q5: Can I calculate for multiple panels?
A: Yes, either multiply the result by number of panels or sum their wattages before calculating.