ABSTRACT
Early in 1974, the document “Energy Conservation Guidelines for Existing Office Buildings” was published by the General Service Administration and the Public Building Services (GSA/PBS). At approximately the same time, the National Bureau of Standards (NBS) prepared the document “Design and Evaluation Criteria for Energy Conservation in New Buildings” for the National Conference of States on Building Codes and Standards (NCSBCS) covering lighting for new construction. NCSBCS asked the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) to prepare a standard on energy conservation for new buildings based on this NBS document. ASHRAE turned to the Illuminating Engineering Society (IES), and the IES Task Committee on Energy Budgeting Procedures was formed. The work of this committee culminated in recommendations that were published by ASHRAE as Chapter 9 of the ASHRAE 90-75 and by IES as “IES Recommended Lighting Power Budget Determination Procedures EMS-1”. NCSBCS also adopted it as part of its Model Building Code. Both documents established a procedure for determining a “lighting power budget”.
