Solar Energy Estimations

Solar Energy Estimations

Concepts

  • Direct Insolation

  • Diffuse Insolation

  • Global Insolation

  • Horizontal

  • Vertical

  • Incident Radiation

  • Transmitted Radiation

Direct Insolation

Radiation from direct sunlight.

Diffuse Insolation

Radiation from reflected sunlight from either the ground or the sky.

Global Insolation

Total radiation on a surface including direct and diffuse sources.

Horizontal Insolation

This is the insolation on a surface parallel to the ground.

Vertical Insolation

This is the insolation on a vertical surface, like a window.

Incident Radiation

For a window, this is the radiation striking the outside surface.

Transmitted Radiation

For a window, this is the radiation that is transmitted by the window into the interior space without being reflected or absorbed.

Insolation Units and Dimensions

Insolation is usually reported in power or energy per area.

Sources

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