Stockholm Royal Seaport

Sustainability Report

Completed Updated: 28/06/2024

Cities4PEDs: Cities for positive energy districts

Stockholm Royal Seaport aims to be fossil-free and climate-positive by 2030. The developments so far include low-energy houses equipped with solar energy production, and in one case, plus-energy buildings that generate more energy annually than they use. This raises the question: Is it possible to create energy-positive districts that generate more renewable energy than they consume?

In the Cities for Positive Energy Districts (Cities4PEDs) project, Stockholm, together with Brussels and Vienna, has investigated how energy-positive areas can be created. Due to the requirements and monitoring carried out in Stockholm Royal Seaport, we have gained more knowledge about energy-efficient buildings. This has provided insight into the need to explore a broader perspective to achieve the goals. The project has therefore examined whether a positive energy balance can be achieved at the district level and what measures are required to reach that goal.

To create energy-positive areas, collaboration is required between measures on and within buildings and public spaces. If a broader implementation of energy-positive areas is to become possible, more focus is needed on legal, institutional, and organisational issues, as well as the major developers, i.e., the cities, needing to develop effective instruments and structures.

Purpose and goal

The purpose of Cities4PEDs is to further develop knowledge related to how energy-positive districts, known as PEDs, can be implemented.

The project will do this by:

  • Developing and testing what an energy-positive district is – concept and definition
  • Identifying the regulations, financial instruments, and organisational conditions required to ensure feasibility – from early planning to implementation
  • Developing methods to engage with citizens and business stakeholders

The goal is to develop tools and knowledge and identify instruments that can be used to facilitate cities’ implementation of PEDs.

Results and experiences

By participating in the project, Stockholm Royal Seaport has explored the potential of developing Loudden into a fossil-free and energy-positive district. The study shows that it is possible to supply the area with heating and cooling, but producing the electricity needed in the area is challenging and expensive with current technology. There are several possible innovative solutions available. For example, sorting wastewater systems and recycling waste heat in greywater could meet the area's hot water needs.

The work has also resulted in a number of reports and findings:

  • "Positive Energy District (PED) Atlas" is a mapping of seven different energy-positive areas and projects that have been carried out.
  • "Goals and Relevant Aspects of a Common Definition" is a draft definition.
  • "Enabling PEDs through City Instruments" deals with organisational, legal, and institutional aspects.
  • "Toward Co-Ownership and inclusive PED Development" covers processes for citizen dialogue.
  • "PED-guide", a handbook for planning energy-efficient neighbourhoods, will be published in spring 2023.


(Architecture Workroom Brussels)

Close up of a PED guide book.
A PED guide will be published in 2023
Four images showing people dicussing in workshops.
Workshop in Stockholm Royal Seaport, summer 2022
Related document and further reading:

News: Stockholm Royal Seaport participates in EU project on energy-positive districts

(City of Stockholm, Stockholm Royal Seaport )

External website: Pre-order PED-guide (Swedish only)

(Architecture Workroom Brussels)

External website: Energy Cities - Cities 4PEDs

(The European Learning Community for future-proof cities)