Any thoughts on what an average LPD could be used for a 40-year old fish plant that has T8 bulbs? Unfortunately that's about all the info. available for existing lighting. I was thinking of using an avg LPD based on 90.1-2007 TABLE 9.5.1 (bldg area method) for a warehouse (0.8 W/ft2) and a manufacturing facility (1.3 W/ft2), which comes out to ~1.1 W/ft2. Any suggestions welcomed.
