Amendment of Solicitation/Modification of Contract forms for the 2008 U.S. Department of Energy (DOE) indefinite-delivery, indefinite-quantity (IDIQ) energy savings performance contract (ESPC). Modifications in these forms apply to all energy service companies (ESCOs). Individual ESCO modifications are not included. The date the modifications were signed are in parentheses below. See the 2008 DOE IDIQ ESPC Generic Contract.