"HERS", an abbreviation for "Home Energy Rating Systems", provides a standardized evaluation of a home's energy efficiency and expected energy costs. A home energy rating can qualify a home owner or home buyer for an energy efficient mortgage (EEM) or an energy improvement mortgage (EIM). A HERS Report is similar to getting a miles-per-gallon report on a car - but in this case, lower is better (lower energy usage means a more efficient home). To find a HERS Certified Home Energy Rater, click here.