D5.15: Trondheim project documentation repository including project status reports 5

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The deliverable D5.15: Trondheim project documentation repository including project status reports 5 was submitted by TK and NTNU in October 2023. The executive summary of the deliverable is available below and the full deliverable is at the end for download:

“This report summarises the work performed in the Lighthouse City (LHC) of Trondheim during the fifth (last) year of the +CityxChange project. It summarises the Trondheim project and key accomplishments over the project period as a whole. Based on results and experiences from the project period, key findings are identified on how cities may drive innovation and demonstrations that promote the energy transition – aiding and contributing to help solve the energy and climate crisis.

During the project period, several innovations crossing traditional domain silos and skills have been developed, addressed, and tested in an operational environment and under realistic conditions. Fundamental for the project scope has been to agree about rather detailed understandings of post energy transition solutions in cities. This includes well functioning positive energy blocks/districts (PEBs/PEDs), available technology, and digitalisation at a level that makes energy assets and related data possible to manage and operate as systems. Within such preconditions it is discussed how energy regulatory framework should be made future proof and act as an enabler for the transition.

The solutions are characterised by the fact that all available energy resources (consumers and producers) are defined as assets with digital inputs/outputs for monitoring and operation including dispatch signals. The coordination of the assets is executed based on priorities and market preferences regarding price and time for each asset. This is made possible by acceptance from the Norwegian Energy Regulator (RME) for demonstrations within the project scope.

The overall goal for the +CityxChange project in the Lighthouse City (LHC) of Trondheim was to establish two scalable Positive Energy Districts (PEDs). Through its operational phase, the PEDs were to undergo analyses in terms of scalability and replicability, and identification of how the PEDs can be further scaled/replicated.

With Trondheim municipality as a facilitator, project leader, and coordinator the following achievements have been made:

  • A full launch of 2 operational and scalable PEDs comprising 71,000 m² of commercial buildings and involving 4 GWh/yr of existing and new RES
  • What is needed for both short term and long term scaling as well as replication
  • Development and testing of a new energy trading platform specially designed for PEDs and local energy markets
  • Development and deployment of a novel solution for local energy markets in 2 PEDs
  • Establishment of 2 special energy regulatory districts in the PED areas
  • Deployment of an eMaaS scheme with EV batteries integrated with the PED ecosystem through V2G charging
  • Establishment/Anchoring of the Bold City Vision Trondheim Energy Positive City 2050
  • Development and verification of a variety of investment and business models
  • Six citizen observatories and 11 innovation labs established; testing 13 lab solutions

Main achievements for the two PEDs of Brattøra and Sluppen show that a combination of reduced energy demand, extensive utilisation of renewables, and local energy markets are keys to succeeding with the energy transition:

A main lesson learned is that upscaling and replication from Energy Blocks to Positive Energy Blocks (PEBs), to Positive Energy Districts (PEDs), and then to city level, is possible through using the Bold City Vision and the BCV framework. This report summarises the different elements which are crucial in order to succeed with the sustainable energy transition.

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