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The Policy Analysis Modeling System (PAMS) is an easy-to-use software tool that helps policymakers assess the benefits of standards and labeling programs and identify the most attractive targets for appliance efficiency levels.

Decision makers – including policymakers, funding agencies, and other stakeholders – need to know the potential environmental and financial impacts of any S&L policy under consideration. This information is essential to prioritizing strategies that maximize benefits for both consumers and governments. Even at the initial stages of policy development, having access to comprehensive estimates of energy savings and monetary costs and benefits is critical.

PAMS is an Excel workbook designed to give first-order policy impacts projections with a minimum of preparatory research on the part of local policymakers. The tool can be used "out of the box" to estimate costs and benefits of different S&L policies for over 150 countries. Advanced users can improve the accuracy of estimates by customizing the tool with any country-specific data that are available.

PAMS is an ideal tool for countries with few technical or financial resources.

LBNL and CLASP collaborated to conceive, develop, and refine PAMS over more than a decade with funding from the U.S. Department of Energy (DOE), U.S. Environmental Protection Agency, U.S. Agency for International Development, the United Nations Foundation, and the ClimateWorks Foundation. DOE funding was provided on behalf of the Super-efficient Equipment and Appliance Deployment (SEAD) Initiative. PAMS is sometimes called PAMS-MEPS, as its primary use is to support the development of minimum energy performance standards (MEPS).