The need to optimize grid expansion costs by managing flexible loads, which is one of the key research topics of the SWEET PATHFNDR consortium, has prompted interest in dynamic tariff designs. However, current distribution grid operators (DSOs) predominantly rely on static tariff structures, which provide imprecise incentives for load shifting. This project, NEDELA, aims to address this challenge by implementing an interface for transmitting dynamic tariffs to EMS within Groupe-E’s grid area. Through field studies and simulations, the project evaluates different tariff designs’ effectiveness in reducing grid peak-load and preventing rebound peaks. Key achievements include the development of a WEB-API for tariff transmission, successful trials demonstrating EMS flexibility, and the launch of the Vario Tariff for 2024. The findings contribute to advancing grid efficiency and promoting user acceptance of dynamic tariffs.