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NUDging consumers towards enerGy Efficiency through behavioral science

Periodic Reporting for period 2 - NUDGE (NUDging consumers towards enerGy Efficiency through behavioral science)

Période du rapport: 2022-03-01 au 2023-11-30

Europe's energy goals require a behavior shift, but traditional incentives fall short. The NUDGE project tackles this by using nudges, subtle interventions that gently steer consumers towards energy-efficient choices. Nudges are a novel approach compared to generic, untested methods. By understanding consumer psychology and real-world contexts, NUDGE personalizes nudges for maximum effectiveness.

To ensure this effectiveness, the project conducted real-world trials across diverse EU countries, testing nudges against traditional incentives through various methods. This multi-layered approach aimed to tailor interventions for maximum impact. NUDGE's overall goal is to unlock the potential of nudges for energy efficiency. It achieves this by personalizing nudges, conducting rigorous field trials, developing a research protocol, and translating findings into policy recommendations. By rigorously testing nudges, the project aims to provide policymakers with valuable insights for promoting energy-efficient behavior across society.
The NUDGE project addressed the critical challenge of achieving ambitious energy efficiency goals in Europe by investigating the efficacy of nudges – subtle behavioral interventions designed to encourage energy-conserving choices. Nudges operate by influencing decision-making processes without restricting options or relying solely on economic incentives.

The project began by identifying key factors influencing energy-saving behaviors through a large-scale consumer survey. This data enabled the creation of distinct consumer profiles based on psychology and demographics. (Deliverable D1.1) Leveraging established knowledge in behavioral science, the project compiled a repository of effective nudge practices. This informed the design of pilot-specific interventions tailored to the previously identified consumer profiles. (Deliverable D2.1) Finally, the project team employed data analytics to assess how participants interacted with various nudges delivered through digital mediation platforms within the pilot trials. This iterative process ensured the interventions were continually refined for optimal effectiveness. (Deliverables D1.3 & D2.3)

The project conducted field trials across five European countries to evaluate nudge effectiveness in real-world settings, encompassing a broad range of energy-saving scenarios. (Deliverables D3.1 & D3.2). Despite a global pandemic, the project recruited a sufficient number of participants for each pilot study, meeting pre-defined eligibility criteria. Smart meters were installed in participating households to gather real-time energy consumption data (Deliverables D3.1 & D3.2) Baseline surveys captured participant attitudes and behaviors. (Deliverables D3.1 & D3.2). Participants were exposed to a variety of nudges delivered through various channels, including smartphone applications, interactive dashboards, web portals, and educational materials. (Deliverables D3.1 & D3.2).

The project ensured the reliable assessment of intervention effectiveness across all pilot studies through a standardized research protocol. This protocol encompassed data collection procedures, statistical analysis techniques, and considerations for potential confounding factors. (Deliverable D2.2).
A comprehensive data analysis approach was employed, incorporating data from smart meter readings, surveys (pre- and post-intervention), and interaction logs with the intervention tools. This multifaceted approach provided a rich understanding of individual energy consumption patterns and their relationship to intervention exposure. (Deliverables D1.3 & D2.3). The project acknowledged the influence of contextual factors on intervention effectiveness. Data analysis considered factors such as country context, pilot design variations, and individual characteristics to provide a nuanced understanding of nudge impacts. (Deliverables D1.3 & D2.3)

The project drew on the comprehensive data analysis to develop evidence-based policy recommendations for policymakers and relevant stakeholders. These recommendations focused on integrating nudges into existing policy frameworks or informing the development of new policies to promote energy-efficient behaviors. (Deliverable D5.3). To ensure the practical application of project findings, the project fostered engagement with policymakers and stakeholders at both national and European Union (EU) levels. This included dedicated workshops and consultations to disseminate project knowledge and explore potential policy integration pathways. (Deliverables D5.1 & D5.2). The project facilitated broader knowledge dissemination by creating concise policy briefs summarizing key findings and developing an online repository of project information for easy stakeholder access. (Deliverables D5.4 & D5.3)
The Nudge project made several key advancements. It developed personalized nudges tailored to individual consumers, implemented pilot interventions in real-world settings across Europe, actively engaged stakeholders throughout the project, and created a guide for designing effective nudges based on insights from various research fields. The project created a valuable resource (Deliverable D2.1) to guide the development of impactful nudges, drawing on insights from various relevant research fields. Field experiments across five countries tested nudge interventions in diverse contexts, providing valuable data for future applications.

The project's personalized nudge interventions hold promise for leading to long-term changes in consumer behavior, although the exact scale of such changes requires further long-term monitoring. Interactive nudges and automated features, like optimized electric vehicle charging, resulted in energy savings of up to 16% for participating households. The findings highlight the importance of context-specific design for nudge interventions. Effectiveness can vary depending on factors like user engagement with digital tools, seasonal energy demands, and baseline consumption patterns influenced by weather conditions.

The development of evidence-based policy recommendations (Deliverable D5.3) has the potential to significantly influence energy policy at national and EU levels. This could lead to the implementation of more effective policies promoting energy-efficient behaviors across society. The project's findings can be applied to behavior change efforts beyond energy use. By demonstrating the effectiveness of personalized nudges, the project can inform interventions in various domains, such as promoting healthy habits or encouraging environmentally friendly practices. Widespread adoption of energy-efficient behaviors can lead to economic benefits for consumers through reduced energy bills. Additionally, it can contribute to environmental benefits by lowering greenhouse gas emissions and mitigating climate change.

The project demonstrably achieved significant success in raising public awareness, exceeding its target of reaching businesses, households, and financing institutions. A targeted multi-channel outreach strategy reached over 314,000 individuals. Nudge actively fostered knowledge exchange with policymakers and stakeholders through workshops, events, and project presentations, reaching an estimated audience of over 7,000. Stakeholder engagement in Croatia directly influenced legislative amendments promoting best practices in energy use monitoring.
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