The Alliance for Water Efficiency provides information and assistance on water conservation efforts.

SketchUp is used to create 3-D graphic models that can help in your daylighting analysis and documentation.

Background for the LEED Pilot Credit Library is provided in this foundational document.

The homepage for the LEED Pilot Credit Library. The LEED Pilot Credit Library is intended to facilitate the introduction of new prerequisites and credits to LEED. This process will allow USGBC to test and refine credits through LEED 2009 project evaluations before they are sent through the balloting process for introduction into LEED.

This study provides expected water conservation percentages derived from measured data, which can be used to support water efficiency calculations for this credit.

For someone who does not design lighting as their primary service, this free lighting calculation software can be downloaded here.

Use this U.S. Navy website to determine twilight parameters for taking site illumination measurements.

This document from USGBC offers guidelines to help you properly set up fixture usage groups in the LEED Online credit form, avoiding common mistakes associated with the water-efficiency prerequisite and credit.

WaterSense is a U.S. Environmental Protection Agency program designed to encourage water efficiency in the United States through the use of a special label on consumer products. It was launched in 2006. The WaterSense website offers information on certified products, and other water conservation information from its partners.

This blog includes regular articles from EVO insiders (and outsiders who meet our editorial guidelines) to inspire discussion on M&V topics.