Interim Lighting Rules: Notes on Controls
- The lighting controls required under the Commercial Buildings Deduction rules are prerequisites—while they produce cost savings for the owner’s benefit, they do not produce LPD savings that are required to qualify for the Deduction.
- Bi-level switching requirement is required by the rules, but not Standard 90.1-2001. It was included because it is considered a simple controls addition that can reduce power input by 10-15% on an annual basis. Bi-level switching strategies could, for example, include split-ballasting to allow separate control of 50% of lamps or fixtures, bi-level ballasts, multiple-ballasts within one fixture (as in the case of compact fluorescent hi-bays), dimming ballasts, manual controls or dimmers or photosensors, and other strategies.
 
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