Client Driven Applications
The RSR2 can also be used for any applications requiring solar radiation measurments. For example, building energy studies require information for solar gain through windows for both air conditioning loads and passive solar energy gains. These can be computed using measurements of direct normal irradiance and details about the window areas and orientations. Similarly, some clients have have measured direct illuminance using the RSR2 and a Licor photometer sensor that measures solar irradiance only in the range useful for human vision. Better uderstanding "daylighting" applications can lead to designs that significantly reduce building lighting requirements.