Citizen participation has become an important aspect in the design of smart cities. This paper investigates the frame and modality of citizen participation in a European Horizon2020 smart city project, +CityxChange, in Trondheim. +CityxChange aims at enabling citizen participation and co-creation in the transition to a positive energy city. The question is “what are the prevailing approaches and practices in relation to citizen participation amongst the key actors involved in +CityxChange? Which structures and processes have inhibited or fostered the participation mechanisms (e.g., for, by, and of people) and practices in Trondheim?” Through participatory observations and interviews with key local actors and citizens, we found that the focus of +CityxChange on efficiency and creating innovative solutions “for” people in partnership with the private sector has disturbed the “by” and “of” people mechanisms of participation. Citizens’ power and roles are not delegated to challenge or replace the project’s predetermined issue or plan. The anchorage of the project outside of the formal administrative structure has caused other functional barriers that inhibit citizen participation, rather than facilitate it. This paper discusses the causal relationships between these interconnected barriers and suggests how authorities can possibly overcome them.

The Positive Energy District (PED) concept is a localized city and district level response to the challenges of greenhouse gas emission reduction and energy transition. With the Strategic Energy Transition (SET) Plan aiming to establish 100 PEDs by 2025 in Europe, a number of PED projects are emerging in the EU member states. While the energy transition is mainly focusing on technical innovations, social innovation is crucial to guarantee the uptake and deployment of PEDs in the built environment. We set the spotlight on Norway, which, to date, has three PED projects encompassing 12 PED demo sites in planning and early implementation stages, from which we extract approaches for social innovations and discuss how these learnings can contribute to further PED planning and implementation. We describe the respective approaches and learnings for social innovation of the three PED projects, ZEN, +CityxChange and syn.ikia, in a multiple case study approach. Through the comparison of these projects, we start to identify social innovation approaches with different scopes regarding citizen involvement, stakeholder interaction and capacity building. These insights are also expected to contribute to further planning and design of PED projects within local and regional networks (PEDs in Nordic countries) and contribute to international PED concept development.

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While energy planning on the building level is characterized by a limited number of stakeholders and a clear ambition setting, this situation changes when expanding to a neighbourhood level. Depending on the context of the neighbourhood, energy planning is challenged to align several stakeholders and define common ambitions and measures suitable to optimize the outcome of energy planning. In Norway, energy planning on neighbourhood level is a relatively new approach. We apply the Energy Master Planning (EMP) concept developed during the IEA EBC Annex 73 to describe the planning process within the Norwegian case study of Ydalir, which ambition is to become zero-emission. Through a qualitative research approach, we identify stakeholders involved, their role and impact, and indicate constraints on EMP implementation so far. We show how the concept of EMP must be further developed, to reply to evidence-based constraints in implementing and reaching for high ambitions in cutting down energy use and emission. This paper relates to the UN development goal 11 of Smart Cities and Communities.