1. What is a Solar System Watts Calculator?

Definition: This calculator estimates the total wattage of a solar panel system based on the number of panels and their individual wattage.

Purpose: It helps solar installers and homeowners determine the total power output capacity of a solar panel array.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Total system watts (W)
• \( P \) — Number of solar panels
• \( PW \) — Wattage of each panel (W)

Explanation: The number of panels is multiplied by the wattage of each panel to get the total system capacity.

3. Importance of Solar System Watts Calculation

Details: Proper wattage calculation ensures your solar system meets energy needs, helps with system sizing, and assists in cost estimation.

4. Using the Calculator

Tips: Enter the number of panels and the wattage of each panel (default 300W). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Is this the actual power output I'll get?
A: No, this is the theoretical maximum. Actual output depends on sunlight, panel orientation, temperature, and system efficiency.

Q2: What's a typical panel wattage?
A: Most residential panels range from 250W to 400W, with 300W-350W being common for newer models.

Q3: How many panels do I need for my home?
A: This depends on your energy usage. Calculate your annual kWh needs, then divide by your area's solar production ratio.

Q4: Does this include inverters or batteries?
A: No, this calculates only the DC output of the panels. Additional equipment affects system performance.

Q5: Should I account for panel degradation?
A: Panels typically degrade 0.5-1% per year. You might want to factor this in for long-term planning.