1. What is a Solar Panel Angle Calculator?

Definition: This calculator determines the optimal tilt angle for solar panels based on your location's latitude and seasonal variations.

Purpose: It helps homeowners and installers maximize solar energy collection by adjusting panel angles seasonally.

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

• Winter Angle — Optimal tilt for December solstice (maximizes winter sun)
• Summer Angle — Optimal tilt for June solstice (maximizes summer sun)
• Latitude — Your geographic location's angular distance from equator

Explanation: The 15° adjustment accounts for the sun's higher position in summer and lower position in winter relative to your location.

3. Importance of Proper Solar Panel Angle

Details: Correct angles can increase energy production by 10-25% compared to fixed panels, especially in seasonal climates.

4. Using the Calculator

Tips: Enter your location's latitude (positive for north, negative for south). Values must be between -90° and 90°.

5. Frequently Asked Questions (FAQ)

Q1: What angle should I use for spring/fall?
A: Use your latitude exactly as the angle for equinox periods (March/September).

Q2: How do I find my latitude?
A: Search online for "latitude of [your city]" or use GPS coordinates (the first number).

Q3: Should I adjust my panels monthly?
A: For maximum efficiency, yes. But adjusting seasonally (3-4 times/year) provides most of the benefit.

Q4: What if my roof pitch is fixed?
A: Choose an angle between summer and winter values that matches your roof or use mounting systems that add tilt.

Q5: Does this work worldwide?
A: Yes, the formulas work for all locations, though extreme latitudes (>60°) may need special considerations.