1. What is a Solar Power Calculator by Location?

Definition: This calculator estimates the daily energy output of solar panels based on panel power, sunlight hours, and system performance.

Purpose: It helps homeowners and solar installers determine potential solar energy production for specific locations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy output (kWh)
• \( P \) — Panel power (kW)
• \( H \) — Average daily sunlight hours (hours)
• \( PR \) — Performance ratio (decimal, typically 0.75)

Explanation: The panel power is multiplied by sunlight hours and adjusted by the performance ratio to account for system losses.

3. Importance of Solar Power Calculation

Details: Accurate solar power estimation helps in system sizing, cost analysis, and energy production forecasting.

4. Using the Calculator

Tips: Enter panel power in kW, average daily sunlight hours for your location, and performance ratio (default 0.75). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the performance ratio?
A: It accounts for system losses (inverter efficiency, wiring, temperature, etc.). Typical values range from 0.7 to 0.8.

Q2: How do I find average sunlight hours?
A: Use solar irradiance maps or local meteorological data for your specific location.

Q3: Should I use peak or nominal panel power?
A: Use the panel's rated power under standard test conditions (STC), usually listed in kW.

Q4: Does this calculate daily or annual production?
A: This calculates daily production. Multiply by 365 for annual estimates.

Q5: How accurate is this calculation?
A: It provides a good estimate but actual production may vary due to weather, shading, and panel orientation.