Reducing total waste generation, increasing the rate of separate collection, and ensuring efficient material recovery are three key objectives recognized at the UN, EU, and national levels for achieving a sustainable waste management system. The policy and scientific debate has traditionally been polarized around two main collection systems: door-to-door and street collection, each with its own strengths and weaknesses. However, in recent years, hybrid waste collection models, which aim to integrate the advantages of both systems, have gained increasing attention. The impact of these models on sustainability, as well as the social mechanisms underlying their success or failure, remain underexplored. This paper analyzes a case study of a hybrid waste collection innovation implemented in eight small and medium-sized municipalities in Piedmont, Italy. The study has a twofold objective: (1) assessing the economic and environmental impacts of the system and (2) hypothesizing the social mechanisms that generate these effects. To address these research gaps, we develop a theoretical framework that combines the socio-technical system approach with analytical sociology. The framework is then operationalized through a quasi-experimental research design, which allows us to measure the effects of the hybrid innovation on a set of 17 indicators. The analysis is conducted by comparing the treated municipalities with a control group selected for its similarity. Empirical evidence reveals an unexpected and partially contradictory outcome: while the total amount of waste decreases, this reduction is not offset by a proportional increase in separate collection rates. Moreover, the quality of waste separation worsens. To explain this emerging pattern, we formulate a set of hypotheses—grounded in our theoretical framework—on the key factors influencing individual behavioral responses. Our provisional conclusion, which requires further qualitative validation, suggests that the interplay between economic incentives and social control in a context of imperfect awareness leads to ambiguous effects of hybridization in waste collection systems.

Renewable Energy Communities (RECs) are deemed to be capable of providing several benefits to their members, as well as to the area in where such associations operate. In this sense they could be considered as capable of expanding the Capability set of the inhabitants of a city to improve their individual and collective well-being. In this contribution, the Urban Capability approach is applied to the EU-introduced concept of RECs to evaluate the preference of different socio-demographic groups in translating RECs from capabilities to functionings. The proposed methodology aims to learn the preference model of individuals depending on their socio-demographic characteristics and geographical location, and to determine the correspondence between preference towards the performance of possible alternative RECs configurations across the city, and the performance thresholds set by inhabitants towards participation. The contribution also presents the questionnaire designed to operationalize the methodology and collect the necessary structured data to build a Machine Learning model able to learn individual preferences. Such structured data will also be used to enrich statistical data from census surveys to "spatialize" preferences related to socio-demographic characteristics of the population. Such types of data could have implications for policy makers in terms of allocation of resources and the evaluation of different levers to better support a wider and fairer participation of inhabitants to energy transition, while, at the same time, removing the barriers to achieve higher level of individual and collective well-being.

A consortium benchmarking (CB) approach was used to conduct a study on development mechanisms and best practices for Collective Action Initiatives (CAIs) in the energy sector. National research teams (NRTs) were created in six European countries (Belgium, Estonia, Italy, the Netherlands, Poland, and Spain) each of which consisted of approximately five CAIs, as well as other stakeholders, governing bodies, and academic researchers. In total, 32 CAIs served as case studies. Each of the NRTs co-created research questions and methodologies to address the issues relevant to the case study CAIs. The results were then synthesized with respect to the dimensions of CAI mobilization (alignment of interests and engagement, organization and governance, resources, external actors and institutions, and policy and regulation) and how they contribute to the development and proliferation of CAIs. From the empirical findings, we reflect on the usefulness of the CB approach as a tool for engagement in research and derive recommendations for how CAIs can be better supported. We find that the CB approach was effective at engaging the CAIs in the research and strengthening their networks. Such networks, as well as collaboration with external actors, are vital for the success of CAIs through assisting with specialized skill sets, developing strategies for attracting a representative and diverse membership base, for securing financing, and for gaining political and social legitimacy. These networks can provide critical support to CAIs to navigate the dimensions of mobilization and allowing for the CAI to flourish.

A syndemic is the co-existence of two or more health problems (including both social and biological features) that adversely influence each other with negative consequences on disease outcomes and perpetuation of inequalities. The syndemic approach can be applied to better understand the course of rheumatic musculoskeletal diseases (RMD) involving the study of adverse biological pathways and social determinants of health (SDH) all under the same framework. Identifying if a syndemic exists within RMDs may include investigating the synergic interactions between comorbidity (e.g., diabetes, obesity, chronic kidney diseases) and the concomitant of other adverse conditions (e.g., drug non-adherence, substance abuse), along with SDHs such as low household income, unemployment, low education, limited access to health care, as well as racial/ethnic discrimination. For decades, the understanding of RMDs progression has been based on causality, rather than investigating the kaleidoscopic web of connections that can potentially influence a disease course. The co-existence of health burdens in vulnerable populations, including those with RMD, specifically in certain socioeconomic groups, calls for new ways and strategies of thinking to improve our understanding of risk factors and co-morbidities to offer tailored interventions for clinical medicine and public health policy.

Public participation in policy-making can play a fundamental role in improving effectiveness via two mechanisms: strengthening the alignment between public needs and proposed measures, and increasing public consensus (and compliance) about them. It is, therefore, particularly relevant to foster public participation in sustainable mobility planning at the urban scale, as strongly recommended by the European Union, not only to avoid protests and resolve conflicts but also to find the best solutions for the city. Among many different tools and methodologies for implementing public participation, Living Labs have also shown great potential in enhancing the co-creation of strategies and measures for achieving sustainable mobility for both passengers and freight.Through the analysis of the participatory process carried out by the municipality of Rome to support the definition of the Sustainable Urban Mobility and Logistics Plans, this chapter explores different involvement levels, tools and strategies in this field, with a particular focus on the innovative Logistics Living Lab developed in this city. This also contributes to filling a gap in the literature on how and to what extent citizens could or should participate in city logistics planning. The results of the analysis highlight that, despite these efforts, citizen participation in planning urban logistics is still a challenge that deserves additional effort and resources to be properly enhanced and improved and that a Living Lab offers great potential to meet this challenge. In turn, this case study could help policy-makers to identify solutions for more effective and acceptable measures to addressing city logistics and the externalities it generates.

Numerous case studies show that citizens engage in various ways in renewable and low carbon energy projects, thereby contributing to the sustainable energy transition. To date, however, a systematic and cross-country database on citizen-led initiatives and projects is lacking. By performing a major compilation and reviewing copious data sources from websites to official registries, we provide a Europe-wide inventory with over 10,000 initiatives and 16,000 production units in 29 countries, focusing on the past 20 years. Our data allow cross-country statistical analysis, supporting the elicitation of empirical insights capable of extending beyond the perspective of single case studies. Our data also align with ongoing efforts to implement two EU Directives that aim at strengthening the active role of citizens in the energy transition. While the focus of our data collection is on Europe, the data and methodology can contribute to the global analysis of citizen-led energy action.

Since the mid-1990s, there has been a growing interest among consumers and producers in downscaling to a local level the length of the agri-food chains as a solution for fairer and more sustainable food production systems. From the point of view of consumption, the attribute “local” is assuming an important role in defining food purchasing preferences, both in terms of expectations of product quality and in terms of its perceived relevance in determining the supply chain sustainability. This research aims to define how individuals’ perception of local production influences the definition of “local” among consumers based on a survey submitted to a sample of 500 consumers in North-Western Italy. The paper provides: (i) a semantic map built on keywords adopted by the respondents to describe local production; (ii) a categorization of food consumers divided in clusters on the basis of their eating styles; and (iii) a characterization of consumers clusters according to the preferences and knowledge expressed towards local production. The results show that consumers’ awareness and attitudes towards the concept of the “local” are influenced by the joint effect of their socio-demographic profile and their food consumption style, with some unexpected evidences that would deserve to be deepen with further research. However, given this uncertainty, three main traits seem to characterize the consumers attitude towards the “local”: a positive relation among the dimensions of environment, local development and product quality and the strength of the link between local production and the reduction of the length of the supply chain. Ultimately, territoriality is perceived as an index of higher product quality (seasonal, therefore fresh and genuine).

In recent years, collective action initiatives in the energy field, such as energy communities and cooperatives, have been gaining relevance both in the policy and in the social research domains as primary actors of energy transition. [...]

Energy communities (ECs), intended as collective action initiatives in the energy field involving citizens’ participation, have been gaining relevance for the past decades as an alternative way to organize the energy chain to challenge the incumbent system. With Europe’s recently adopted Clean Energy Package, ECs found a formal recognition by the European Union as potential actors of the transition of the energy system towards a wider and more decentralized use of renewable sources. Although the potential role of ECs in the transition is therefore hardly questionable, a thorough comprehension of the enabling factors that might foster their diffusion and scaling up is still lacking. Through a comparative analysis of the evolutionary trajectories in six EU countries regarding their energy systems, their regulatory frameworks and their historical evolution of ECs, namely through the example of cooperative models, this paper aims at providing some preliminary evidence about the factors and dynamics that seem to have played, and may play, a role in hampering or facilitating EC model diffusion. Attention is therefore specifically paid to three dimensions of analysis referring to: the energy mix and market structure; the institutional and policy landscape; the wider social attitudes towards environmental issues and cooperation among citizens. In addition to providing a wide comparison of different EU countries, the paper shows that the historical evolution pathways have to be carefully taken into account to understand what might trigger ECs exploitation in the EU.

This paper provides novel additional evidence on the characteristics of Collective Action Initiatives (CAIs), investigating their role within the European energy sector. It analyses and presents results of a survey administered in six European countries: the Netherlands, Belgium, Italy, Poland, Estonia, and Spain. CAIs are studied in light of four key dimensions, those being their creation dynamics, the way they are organized, financed, and the activities they undertake. The results presented are also interpreted to reflect on their role as drivers of social innovation (SI) within energy transition in Europe. The analysis shows that the contribution of CAIs to the energy transition has a much wider scope than the development of energy projects and provision of energy services. CAIs are intrinsically socially innovative models of implementation as characterised by a strong level of citizen involvement and participation. Moreover, they have a potential multi-level role in the energy transition, from the technological and social perspectives. Indeed, alongside traditional energy activities, our results show that CAIs are evolving and expanding towards socially innovative activities, raising awareness on environmental issues, promoting citizens’ mobilization, and fostering social inclusion.

The principles of Findability, Accessibility, Interoperability, and Reusability (FAIR) have been put forward to guide optimal sharing of data. The potential for industrial and social innovation is vast. Domain-specific metadata standards are crucial in this context, but are widely missing in the energy sector. This report provides a collaborative response from the low carbon energy research community for addressing the necessity of advancing FAIR metadata standards. We review and test existing metadata practices in the domain based on a series of community workshops. We reflect the perspectives of energy data stakeholders. The outcome is reported in terms of challenges and elicits recommendations for advancing FAIR metadata standards in the energy domain across a broad spectrum of stakeholders.

This chapter describes the results of a sociological investigation carried out within an EU-funded project. The project was aimed at creating a tool to visualise and compute energy data at an urban district level, with the broader aim to optimise the local district heating (DH) network's distribution policies. This chapter identifies the features of the main categories of actors (from the DH operator to final users) having a role within that network. Special attention is paid to the identification of the barriers and frictions preventing a stronger collaboration and communication among these actors to happen. It is argued that the identification and resolution, in situated and complex socio-technical systems, of these non-strictly-technical problems may be, at least in some cases, a pre-requisite for any ICT-based solution to deploy its full potential.

Bio-waste could play a fundamental role in reaching the EU target to recycle 65% of municipal waste by 2035. The European waste policies and the Green New Deal are increasingly focusing on bio-waste enhancement, in particular within the Bioeconomy Strategy and the Circular Economy Package. Circular bioeconomy (CBE) combines these perspectives, with an increasing focus on organic flows extension and enhancement along the economic cycle. This paper analyses the potential of the CBE paradigm to improve the treatment of the organic fraction of the municipal solid waste (OFMSW), taking the Metropolitan City of Turin (MCT) as a case study. Our results indicate that the currently used OFMSW plant capacity of MCT is insufficient with respect to the need for treatment and, above all, inadequate for future demand trends. We advance an analysis of different CBE-related projects, which contribute to the creation of a feasible environment for bio-based closed loops in Turin. In particular, RePoPP (Porta Palazzo Organic Waste Project) is proposed as an instance of a systemic and circular process that could be improved by following the CBE principles. Through the use of qualitative system dynamics, we propose a decentralised alternative MSW management scenario with a micro anaerobic digestion plant at its core. A stakeholder analysis through a power-interest matrix identifies actors that are key to enabling this scenario. The sustainable pathways proposed in this paper can inspire local-level policy design and therefore contribute to the creation of new systemic food and waste policies for the city through the CBE paradigm.

Energy communities (EC) are among the new actors in the energy market, playing an important role in the uptake of photovoltaics (PV) in European markets. This paper estimates their aggregate contribution to the low-carbon energy transition in terms of installed capacities for PV and evaluates their economic performance comparing with market prices. We compiled a database of PV facilities with 3672 entries for Germany and 64 entries for Italy. Our statistical analysis does not support an economic under-performance of EC. The aggregate contribution of EC currently amounts to 600–838 MWp installed capacity in Germany and 10.6 MWp installed capacity in Italy, which makes 1.2–1.7% and 0.07% of all PV installations in Germany and Italy, respectively.

This paper investigates the suitability of the community cooperatives (CC) model for the implementation of renewable energy communities (REC), as prescribed by art. 22 of EU Directive 2018/2001, and temporarily transposed into the Italian law by art. 42-bis of the Law Decree n. 162/2019. The hypothesis explored analyses the potential synergies between RECs and CC, based on their similarities. In particular, the article takes into consideration: the actors involved in both the RECs and the CCs; the geographical scope in which they develop, and the purposes that these two legal forms intended to achieve. Through a literature review and the analysis of EU, national and regional legislations, the paper aims at (1) clarifying the main features of RECs and the CCs in Italy; (2) exploring the main differences between CCs and the other legal forms of cooperative (e.g., mutual cooperative, cooperative benefit, etc.) and assessing the extent to which CCs are more suitable to implement renewable energy communities. As a result of the literature and regulatory review, several similarities between CCs and RECs can be detected, particularly, in reference to the strategic valorization of the cooperation between citizens and the local public entities. These similarities allow the authors to provisionally conclude that, in Italy, CCs may be adopted as a tool to implement RECs.

The Climate Pact and the European Green Deal constitute the main components of the European Union (EU)’s climate change policy. Energy transition, that is, transformation to a zero-carbon global energy system, is one of the main pillars of climate change mitigation policies. This transformation, coupled with the empowerment of individuals within the energy system, shifts citizens from their roles as customers towards a more active role. Within this framework, energy communities stand out as significant facilitators for the participation of individuals and communities in the energy system, promoting self-consumption and contributing to the social acceptance of renewable energy initiatives, among other direct and indirect benefits. The main directives introducing energy communities into the EU legal system are RED II and ED 2019. This study, conducted as a part of a Horizon 2020-funded eCREW project, assessed the adaptability and implementability of these two directives within national legislation, along with the associated legal and administrative frameworks, utilizing evidence from Austria, Germany, Greece, Italy, Spain, and Turkey. The comparative analysis also enhances the understanding of the concept of renewable energy communities and citizen energy communities, both in the EU and in nonmember countries. The results of the analysis revealed that none of the countries studied had yet completed the process of harmonizing their legislation concerning energy communities.

This paper aims at addressing the exploitation of solid-state carriers for hydrogen storage, with attention paid both to the technical aspects, through a wide review of the available integrated systems, and to the social aspects, through a preliminary overview of the connected impacts from a gender perspective. As for the technical perspective, carriers to be used for solid-state hydrogen storage for various applications can be classified into two classes: metal and complex hydrides. Related crystal structures and corresponding hydrogen sorption properties are reviewed and discussed. Fundamentals of thermodynamics of hydrogen sorption evidence the key role of the enthalpy of reaction, which determines the operating conditions (i.e., temperatures and pressures). In addition, it rules the heat to be removed from the tank during hydrogen absorption and to be delivered to the tank during hydrogen desorption. Suitable values for the enthalpy of hydrogen sorption reaction for operating conditions close to ambient (i.e., room temperature and 1–10 bar of hydrogen) are close to 30 kJ·molH2−1. The kinetics of the hydrogen sorption reaction is strongly related to the microstructure and to the morphology (i.e., loose powder or pellets) of the carriers. Usually, the kinetics of the hydrogen sorption reaction is rather fast, and the thermal management of the tank is the rate-determining step of the processes. As for the social perspective, the paper arguments that, as it occurs with the exploitation of other renewable innovative technologies, a wide consideration of the social factors connected to these processes is needed to reach a twofold objective: To assess the extent to which a specific innovation might produce positive or negative impacts in the recipient socioeconomic system and, from a sociotechnical perspective, to explore the potential role of the social components and dynamics in fostering the diffusion of the innovation itself. Within the social domain, attention has been paid to address the underexplored relationship between the gender perspective and the enhancement of hydrogen-related energy storage systems. This relationship is taken into account both in terms of the role of women in triggering the exploitation of hydrogen-based storage playing as experimenter and promoter, and in terms of the intertwined impact of this innovation in their current conditions, at work, and in daily life.