A letter report issued by the Government Accountability Office with an abstract that begins "ESPCs finance energy-saving capital improvements, such as lighting retrofits for federal facilities, without the government incurring the full cost up front. Partnerships tap the capital and expertise of the private sector to develop real property. This report describes (1) what specific attributes of ESPCs and partnerships contributed to budget scoring decisions, (2) the costs of financing through ESPCs compared to the costs of financing via timely, full, and up-front appropriations, and (3) how ESPCs and partnerships are monitored. Using case studies, GAO reviewed GSA and Navy ESPCs and DOE and VA partnerships."