1. What is a kWp Calculator for Solar Panels?

Definition: This calculator converts solar panel wattage (W) to kilowatt-peak (kWp), the standard unit for measuring solar panel output under ideal conditions.

Purpose: It helps solar installers and homeowners understand the potential power output of solar panels.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kWp \) — Kilowatt-peak (standard solar output measurement)
• \( W \) — Wattage of solar panel(s)

Explanation: Simply divide the wattage by 1000 to convert from watts to kilowatts.

3. Importance of kWp Calculation

Details: kWp helps determine system size, estimate energy production, and compare different solar panel configurations.

4. Using the Calculator

Tips: Enter the solar panel wattage in watts (W). For multiple panels, enter the total combined wattage.

5. Frequently Asked Questions (FAQ)

Q1: What does kWp mean?
A: "Kilowatt-peak" measures maximum output under standard test conditions (STC: 1000W/m² sunlight at 25°C).

Q2: How many panels make 1 kWp?
A: Typically 3-4 panels (e.g., 3x330W panels = 990W ≈ 1kWp).

Q3: Does kWp equal actual power output?
A: No, actual output depends on weather, orientation, shading, and system efficiency.

Q4: What's a good kWp for a home?
A: Average homes need 3-6 kWp systems, but this varies by location and energy use.

Q5: How to calculate annual energy from kWp?
A: Multiply kWp by your location's "peak sun hours" and by 365 days.