Solar Calculator

Calculate optimal solar panel angles for specific dates and locations

Select Date

Latitude

Longitude

Solar Data for 2025-09-09

Solar Declination:5.69°

Solar Noon Time:11:38

Peak Solar Elevation:41.9°

Optimal Tilt Angles

Fixed (Latitude):53.8°

Seasonal Adjustment:53.8°

Monthly Adjustment:68.8°

Optimal (Daily):48.1°

Hourly Solar Elevation

5:00

6:00

8°

7:00

17°

8:00

25°

9:00

32°

10:00

38°

11:00

41°

12:00

42°

13:00

39°

14:00

34°

15:00

27°

16:00

19°

17:00

10°

18:00

1°

19:00

20:00

Installation Recommendations

For Fixed Installation

• Set tilt angle to 53.8° from horizontal

• Face panels due South (180° azimuth)

• This provides good year-round performance

• No seasonal adjustments needed

For Seasonal Adjustment

• Current optimal: 53.8°

• Adjust 3-4 times per year

• ~25% more energy than fixed installation

• Balance between performance and maintenance