Founded in 2001, the Southwest Energy Efficiency Project (SWEEP) is a public interest nonprofit dedicated to achieving a healthy, equitable, and low carbon future by advancing clean energy, energy efficiency, electrification, and clean transportation solutions in the southwestern United States. In collaboration with state and local governments, utilities, environmental and community groups, businesses, agencies, and others, SWEEP advocates for programs, policies, and funding to mitigate climate change and its impacts, support underserved and disadvantaged communities, and save people money on energy and transportation costs. SWEEP has helped pass more than 150 state laws across the Southwest.

SWEEP will work to advance a clean and equitable energy future in 2025 through three programs: 1) Utilities: Working to get utilities to invest in renewable energy resources, energy efficiency programs, and demand response efforts to reduce energy waste, utility bills, and emissions; 2) Buildings: Ensuring that homes and commercial buildings are constructed or retrofitted to be energy efficient and heated and cooled with clean electricity; and 3) Transportation: electrifying the transportation sector; promoting multimodal alternatives like transit, biking, and walking; and advocating for smart land use and affordable infill housing to reduce travel costs, demand, and emissions.