Page 112 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers
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LEED Sustainable Sites     93


                           Application                     Lighting Power Densities (LPDs)
               Tradable    Uncovered parking areas
               surfaces     - Parking lots and drives      0.15 W/ft 2
                           Building grounds
                            - Walkways less than 10 ft wide  1.0 W/lin ft
                            - Walkways 10 ft or greater    0.2 W/ft 2
                            - Plaza areas                  0.2 W/ft 2
                            - Special feature areas        0.2 W/ft 2
                            - Stairways                    1.0 W/ft 2
                           Building entrances and exits
                            - Main entries                 30 W/lin ft of door width
                            - Other doors                  20 W/lin ft of door width
                           Canopies and overhangs
                            - Canopies (freestanding and attached   1.25 W/ft 2
                             and overhangs)
                           Outdoor sales
                            - Open areas (including vehicle sales lots)  0.5 W/ft 2
                            - Street frontage for vehicle sales lots   20 W/lin ft
                             in addition to open-area allowance
               Nontradable  Building façades               0.2 W/ft  or
                                                                 2
               surfaces.                                   5.0 W/lin ft
               These are
               special
                           ATMs and night depositories     270 W per location plus 90 W per
               allowances                                  additional ATM
               that are in
               addition
                                                                  2
                           Guarded gatehouses or entrances  1.25 W/ft of uncovered areas
               to the
               allowances in                               (covered areas are included in
               the tradable                                canopies)
               section.
                                                                 2
                           Loading areas for police, fire, EMS, or   0.5 W/ft  of uncovered areas
                           other emergency vehicle         (covered areas are included in
                                                           canopies)
                           Drive-up windows at fast food   400 W per drive-through
                           restaurants

                           Parking near 24-h retail entrances  800 W per main entry

             Source: ASHRAE/IESNA Std 90.1-2004, Table 9.4.5, Energy Standard for Buildings Except Low-Rise
             Residential Buildings, Chapter 9: Lighting, ©American Society of Heating, Refrigerating and Air-Conditioning
             Engineers, Inc.
             TABLE 2.8.1  Lighting Power Densities

             include solar power lighting or other lighting that does not use electricity or fossil
             fuels, and this does not apply to equipment or portions of building systems that use
             energy primarily for industrial, manufacturing, or commercial processes. Or at least,
             this is what the author has interpreted from the LEED-NC 2.2 and 2009 Reference
             Guides.
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