Serving the southwestern United States in solving complex energy, air pollution, and decarbonization challenges since 2001 by leading the effort to advance energy efficiency in the utilities, buildings, transportation, and industrial sectors.

SWEEP Programs

SWEEP promotes the improvement of utility energy efficiency programs, beneficial electrification, sustainable building codes and regulations, and the advancement of clean transportation in the Southwest. In addition, we advocate for energy equity in vulnerable communities and cost savings for homeowners and commuters through data driven decarbonization solutions.

Resources & Publications

Publications, reports, fact sheets, white papers, bill explainers, and other resources authored by SWEEP experts.

Visit Resource Library


The Southwest Energy Efficiency Project (SWEEP) is a public-interest organization promoting greater energy efficiency and clean transportation in Arizona, Colorado, Nevada, New Mexico, Utah, and Wyoming. For over two decades, SWEEP’s work has dictated and supported the Southwest region’s forward-thinking progress in advancing energy efficiency and electric vehicles.