855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 203
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Along with the use of high-efficiency fixtures and fittings, projects that use alternative water sources for these systems can report further savings and achieve additional points under this option.
AND/OR
Option 3. Appliance and Process Water
Option 3 rewards projects that prioritize water-efficient appliances and process equipment. Projects earn one point for meeting prescriptive water use requirements in a single equipment category, for up to 2 total points.
Tables 13–16 outline the prescriptive measures for appliances and process equipment. All newly installed equipment must meet the referenced standards, performance equivalents (outside of the U.S.), and/or water use limits. Exclude existing appliances and equipment.
Projects that do not include any applicable systems in their scope of work, or projects that can document compliance with more than two tables, should review the project’s whole water balance model from WEc2: Enhanced Water Efficiency, Option 1. Whole Project Water Use, as it may optimize points for this credit.
AND/OR
Option 4. Outdoor Water Use
There are two paths to earn credit for outdoor water use. Path 1 rewards projects that do not use permanent irrigation beyond the initial two-year establishment period. Projects that include irrigation can earn points by reducing water use from the project’s baseline requirements using native or adapted plants and vegetation, alternative water, and/or smart irrigation controls.
PATH 1. NO IRRIGATION
Projects complying with WEp2: Minimum Water Efficiency, Minimum Outdoor Water Use Efficiency, Option 1. No irrigation automatically earns 2 points.
PATH 2. EFFICIENT IRRIGATION
WEc2: Enhanced Water Efficiency, Path 2. Efficient Irrigation directly links to WEp2: Minimum Water Efficiency, Minimum Outdoor Water Use Efficiency, Option 2. Efficient Irrigation . New Construction projects that achieve a 50% or 100% reduction in irrigation earn up to 2 points, while Core and Shell projects that achieve a 50%, 75%, or 100% reduction may earn up to 3 points. Proven solutions include alternative water sources, like reclaimed water or rainwater harvesting, and the use of smart scheduling technology. Calculations completed for WEp2:
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 193