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White Paper: Insights and Lessons from Developing Digital One-Stop Shops for Energy Efficiency

Energy efficiency is central to achieving the European Green Deal objectives and meeting the EU’s climate neutrality targets. Buildings remain one of the largest sources of energy consumption and greenhouse gas emissions in Europe, and improving their performance is essential for reducing emissions and addressing energy poverty — a pressing issue affecting millions of households across the EU.

Under the REVERTER project, the project communication and dissemination partner WIT Berry has developed four Digital One-Stop Shops (DOSS) for the pilot regions of Brezovo (Bulgaria), Coimbra (Portugal), Athens (Greece) and Riga (Latvia). These online platforms are designed to make the process of home renovation easier and more accessible, especially for vulnerable households.

The newly released White Paper presents the key findings from this work, based on extensive survey data, hotspot analyses, and assessments of vulnerable consumers’ needs in the four pilot areas.

Importantly, the White Paper highlights the main results and takeaways for each Digital One-Stop Shop, detailing how each platform addressed local needs and challenges. It also provides practical recommendations for those who plan to develop or maintain Digital One-Stop Shops — including guidance on technical design, user engagement, and communication strategies to reach and support vulnerable consumers.

These insights offer valuable direction for policymakers, local authorities, and practitioners committed to scaling up deep energy renovations and fostering inclusive, user-centered digital solutions for energy efficiency.

Conclusion

The White Paper concludes that the most effective strategy for future Digital One-Stop Shop (DOSS) development lies in adopting a multi-channel communication approach. Combining online and offline promotion—including banners, press releases, and digital campaigns—ensures greater outreach and engagement across diverse audiences.

Digital tools such as Google AdWords and Facebook campaigns are particularly effective for targeted communication, while investments in SEO and AIO can strengthen visibility and reduce the need for paid media. At the same time, offline promotion—through banners and posters in public spaces—remains vital, especially when tailored to the scale of each area, from small municipalities like Brezovo to larger urban settings such as Riga or Athens.

Ultimately, the success of a DOSS depends on clear, accessible, and engaging communication. Providing practical, user-friendly information and ensuring balanced visibility across channels are essential to building trust, raising awareness, and encouraging active participation in energy renovation initiatives.