The title system is developed and maintained by ECN Policy Studies. Based on energy consumption the main groups are determined and described in more detail with regard to the production processes, the size of the companies involved and its economic parameters as value added and turnover. These data concern more detailed items on energy use, production, building specifications, etc. In this report an overview is given of the available 'grey data' on the ECN-site.
Special attention is paid to the energy use of buildings.