Abstract
This fourth and final version (version 4.0) of the ZEN definition guideline report builds upon V1.0, V2.0 and V3.0 of the ZEN definition guideline reports and a series of ZEN definition reports. This report highlights that an nZEN balance is required instead of point allocation in the GHG emissions category. Reference, limit, and target values have been added to the energy and power categories. The mobility and economy KPIs and point system have been reviewed based on testing in the ZEN pilot project Ydalir, and minor adjustments have been made to the urban form and land use KPIs. The process chapter has been moved to a separate process guideline report.