Various tendering parties use the CETenderTool in their tenders. This Excel-based tool quantifies the environmental impact of the bidders to allow simple and objective comparison. The CETenderTool is based on the LCA method, which stands for life cycle analysis. This approach quantifies the environmental impact from the raw material extraction stage up to the end-of-life phase.

Each procurement procedure is unique. So each CETenderTool is customised to suit the specific tender. The first step is to clearly define the product that is to be compared and the life phases that are to be included. Next, the inputs and outputs for each life phase are identified. Finally, the tool uses this information to quantify the environmental impact in meaningful terms; e.g. the CO2 footprint.

CE Delft has developed a CETenderTool for the reactivation of activated carbon on behalf of drinking water utilities Evides and Oasen. They want to be able to quantify improvements in the CO2 footprint during the tender process with the aim of encouraging companies to reduce the CO2 footprint of activated carbon. A further example is the CETenderTool for Alliander, which quantifies the CO2 footprint and level of raw materials depletion associated with electricity cables.