In the scientific literature and in practice, quite a lot of attention is paidto the actors’ network analysis in living labs. Still, there is a lack of studies onvalue exchange between different actors in living laboratories. This study selectedthe distributed structure of the actors’ network in living lab since most European residential laboratories function according to this model. In the course of this exploratory study, we conducted two workshops: the first with participants from several European residential laboratories to discuss and co-design a framework for analyzingthe exchange of value between different stakeholders, and the second workshop—case study, where the proposed framework was applied on the actors network of the existed living laboratory—KTH Live-in-Lab. As a result, we got a detailed pictureof the network of actors and value exchange within the value co-creation model forKTH Live-in-Lab (Smart Home Services project).

This exploratory study analyses the daily activities of the end-user in terms of assessing the potential for conserving direct and indirect energy. In the course of the study, a socio-technological system approach was applied, which made it possible to combine the methods of analysis and interaction of the social group (students) and technical infrastructure (living laboratory). The method of creating personas was also applied to segregate a large group of the population within one segment. This approach allowed us to consider in more detail the different types of behavior in the same segment. As a result, we got more personalized strategies for changing a behavior tailored for each individual persona. In conclusion, a recommendation was given on which policies implications and to which organizations to address.

The purpose of this study is to synthesize the widely used theories about co-creation from two main perspectives: co-creation as an innovation process and co-creation as a design process applied to the service concept design in the built environment context. The architecture, engineering, and construction (AEC) industry do not have much application of end-user-oriented service design in general, especially with intensive co-creation processes. To facilitate such a process, we are using a living lab environment as a laboratorial model of the real built environment, but with the opportunity to have access to the end-users and different types of stakeholders. Using the KTH Live-in-Lab explorative case study, we were able to discuss the concept of co-creation by distinguishing between co-creation as innovation and co-creation as a design process, facilitating the process of co-creation of service concepts for the proposed built environment including methods from both perspectives: innovation and design, and evaluating the process of service concepts co-creation for the built environment from the point of innovation, knowledge transfer, sustainability, and user experience.

End use energy services have an important role in the ongoing energy transition process by improving the value proposition to the customer through better needs fulfillment and experience and providing system value to the energy system. This study presents a framework for end use energy services, developed as a result of co-creation with multiple stakeholders for a case study in a living lab context. The framework has been co-created using the principles of systems thinking to identify and map both existing and emerging elements and interactions within the energy system and customers. The framework is organized to include aspects from energy system and human system perspectives and divides the energy services development process into three distinct stages. The development stages comprise the strategic planning stage, service design stage, and solution stage. Key considerations are provided for each stage to develop a clearer understanding of the overall end use energy service process.

Today's commercially-off-the-shelf (COST) wearable devices can unobtrusively capture several important parameters that may be used to measure the indoor comfort of building occupants, including ambient air temperature, relative humidity, skin temperature, perspiration rate, and heart rate. These data could be used not only for improving personal wellbeing, but for adjusting a better indoor environment condition. In this study, we have focused specifically on the sleeping phase. The main purpose of this work was to use the data from wearable devices and smart meters to improve the sleep quality of residents living at KTH Live-in-Lab. The wearable device we used was the OURA ring which specializes in sleep monitoring. In general, the data quality showed good potential for the modelling phase. For the modelling phase, we had to make some choices, such as the programming language and the AI algorithm, that was the best fit for our project. First, it aims to make personal physiological data related studies more transparent. Secondly, the tenants will have a better sleep quality in their everyday life if they have an accurate prediction of the sleeping scores and ability to adjust the built environment. Additionally, using knowledge about end users can help the building owners to design better building systems and services related to the end-user's wellbeing.

The building use stage offers the opportunity to provide valuable and sustainable product-service systems (PSS) that enhance the buildings' value for the end-users. Many of them are delivered by networks of stakeholders that actively involve small andmedium enterprises (SMEs). We have combined an existing literature review with the multiple stakeholders' feedback to identify several problems and define the main hypothesis: diverse and presented in a structural way information about PSS can contribute to a better understanding of the added value by multiple stakeholders. We have co-created a list of criteria, which were formed into the sustainability multi-criteria framework. The proposed framework also supplements PSS-specific criteria, such as PSS type, PSS collaborative partnership networks type, and PSS integration type. A list of findings related to the topic was declared to help further develop the study, such as the correlations between PSS-related and PSS sustainability-oriented criteria.

The concept of sustainable buildings includes not only technological aspects related to energy efficiency and resources usage optimization, but also aspects related to end-users' comfort, wellbeing, and everyday needs support. To understand the end-users' life activities in general and their preferences in particular, is necessary to enrich standard Building Management Systems (BMS) with human-generated and personal data. In this conceptual paper, we present an end-user context information management framework, which includes a reasoning layer, an acquisition layer, and a dissemination layer. The proposed framework is currently implemented in the KTH Live-in-Lab - a fully equipped testbed for research and innovation in the build environment.