Explore lighting power density models for entire buildings.
Whole Building LPD
Explore lighting power density models for individual spaces.
Space Type LPD
Experiment with your own power density models.
in Adobe Acrobat pdf format.
|The IESNA Energy Management Committee (EMC), working with the
Lighting Subcommittee of the ASHRAE/IESNA 90.1-2004 Standing Standards Project Committee (SSPC) has
developed an interactive methodology for determining lighting power densities for both
individual spaces and whole buildings. This methodology is the basis for the lighting
power density numbers found in the ASHRAE/IESNA 90.1-2004 Standard.
methodology calculates lighting power allowances for building spaces and whole buildings.
The process models lighting design assumptions from a consensus of lighting design
professionals for each of the space types used in 90.1-2004, using currently available
efficient lamp/ballast/fixture data, and illuminance values from current IESNA illuminance
recommendations. In this way, the needs of the occupants are taken into account and
energy-efficient design is promoted through the resulting lighting power densities.