Changes in the total cost of acquisition include the followings: supplier search costs, access to supply markets, consolidated procurement requirements, procurement price, cost of requisition orders, and order costs. In the case of the PT. PLN, not all of those aspects were considered as the impact of e-procurement. Some procurement processes were still processed manually, such as order processing to the winning supplier, so the procedures remain the same both before and after the
implementation of e-procurement. Table II summarizes the impacts of implementation of e-procurement system in PT. PLN in the area of acquisition costs.