Alternative energy sources

1. Basic Earth-Sun Angle

2. Solar Angles
Describe the
sun position
relative to a
vertical
surface

3. Earth Angle
1.Angle of Latitude (Φ)
2.Declination (δ)
3.Hour Angle (ω)

4. 2.Declination (δ)

5. 3.Hour Angle (ω)

6. Sun Angle
1. Inclination Angle (Altitude) (𝛼)
2. Zenith Angle (θz)
3. Solar Azimuth Angle (γs)

7. Surface Angle
1.Surface Azimuth Angle (γ)
2.Tilt Angle or Slope (β)
3. Angle of Incidence (θ)