Evaluation of Savings from the Application of Adsil in the NC/SC Charlotte Area This report contains the results of a study EPA contracted for in the Charlotte, NC/Rock Hill, SC region to apply and study the benefits of a new coating called Adsil. The study was conducted in connection with the SEQL Project (Sustainable Environment for Quality of Life), an integrated environmental improvement project in the 15-county North Carolina/South Carolina region surrounding Charlotte, NC. Previous studies have shown that, when Adsil is applied to air conditioner (A/C) units, it can bring the efficiency of that unit virtually back to that of a new unit, as well as prevent age-related efficiency loss due to the deterioration of heat transfer surfaces, saving both electrical power and early replacement costs. The ability to model expected energy savings with widespread use of Adsil in various types of locations is beneficial and transferable to other communities nationwide. Energy savings reduce costs, limit the need for new generating capacity, and could under certain circumstances benefit air quality. Quantifiable air quality benefits depend on the amount of energy savings and the extent to which, and where, fossil fuel-fired power plants reduced emissions as a result of those energy savings. EPA is also providing two tools also developed under contract: 1) A degradation prediction tool for HVAC units was created in this pilot program. This spreadsheet-based tool was calibrated against actual EER measurements and was found to be very accurate in predicting the EER degradation of a population of HVAC units in the SEQL area. 2) An energy savings projection tool was also created based on the results of this study. This tool can be easily adapted by facility owners and operators to estimate their energy savings, dollar savings, and avoided pollution emissions as a result of the application of Adsil to air-cooled HVAC equipment. For more information on SEQL, you can consult www.seql.org or contact Chris Stoneman (919/541-0823, stoneman.chris@epa.gov).