This study provides an overview of practices for quantifying and reporting avoided energy-water costs from demand-side measures. It also summarizes the regulatory guidance for incorporating water savings into cost-effectiveness screening for energy efficiency programs.

In 2011 the City of Boulder, Colorado enacted its “SmartRegs” ordinances that require all single family and multifamily rental properties to meet a minimum energy efficiency standard by January 2019. The SmartRegs initiative is designed to help the city achieve its ambitious carbon emissions reduction goals and to improve the quality, safety, and marketability of Boulder’s rental housing stock.

This guide helps states and localities develop voluntary or mandatory programs that go well beyond minimum code requirements for new buildings. It addresses energy efficiency materials and resource conservation, water efficiency, indoor environmental quality, and site development and land use.