Document presents a template for the preliminary assessment (PA) that energy service companies (ESCOs) are required to conduct in an energy savings performance contract (ESPC) project under the U.S. Department of Energy (DOE) ESPC IDIQ contracts. This template meets the requirements of the 2017 DOE ESPC IDIQ contract, Section H.3.2 B. Preliminary Assessment Development, which stipulates that “The ESCO submits a PA to the ordering agency, which provides the conceptual range of the expected energy conservation measures, costs and savings for the project.” It also meets requirements of Section H.4, Preliminary Assessment Content Requirements, with its purpose “to set out the merits, technical feasibility, range of projected energy savings, economics, and conceptual price range of the project.”