Solarific

Solar panel data for all U.S. cities

Solar Panel Angles for Fontana, California

The most efficient tilt for photovoltaic panels in Fontana, California at a latitude of 34.1°:

Orientation

Your photovoltaic panels need to be angled facing south.

Fixed tilt

If you're mounting the photovoltaic panels at a stationary angle, such as on your roof, the most efficient angle is 29°.

2-Season tilt

If you're planning to change the angle of your photovoltaic panels twice per year, the most efficient angle is 10.7° in summer months and 49° in winter months.

4-Season tilt

If you're planning to change the angle of your photovoltaic panels each season, the most efficient angle is 7.1° in summer months and 54.3° in winter months, and 31.1° in autumn and spring months.