Positive Energy Districts (PEDs) aim to create an area within the city that is capable of generating more energy than it consumes. Furthermore PEDs also support minimizing the impact on the centralized energy networks by offering options for increasing onsite load-matching and self-consumption, technologies for short and long term storages, and providing energy flexibility with smart control. The aim of Annex 83 is developing an in-depth definition of a PED and the technologies, planning tools and the decision-making and planning process related to positive energy districts. Experience and data to be used in the Annex will be gained from demonstration cases. Annex 83 is active 2020-2024.