We present an open digital ecosystem based on web-framework with a functional back-end server in user-centric energy retrofits. This data-driven web framework is proposed for building energy renovation benchmarking as part of an energy advisory service development for the V\"asterbotten region, Sweden. A 4-tiers architecture is developed and programmed to achieve users' interactive design and visualization via a web browser. Six data-driven methods are integrated into this framework as backend server functions. Based on those functions the users can be supported by this decision-making system when they want to know if it needs to be renovated or not. Meanwhile, influential factors (input values) from databases that affect energy usage in buildings are to be analyzed via quantitative analysis, i.e., sensitive analysis. The contributions to this open ecosystem platform in energy renovation are: 1) A systematic framework that can be applied to energy efficiency with data-driven approaches, 2) A user-friendly web-based platform that is easy and flexible to use, and 3) integrated quantitative analysis into the framework to obtain the importance among all the relevant factors. This computational framework is designed for stakeholders who would like to get preliminary information in energy advisory. The improved energy advisor service enabled by the developed platform can significantly reduce the cost of decision-making, enabling decision-makers to participate in such professional knowledge-required decisions in a deliberate and efficient manner. This work is funded by the AURORAL project, which integrates an open and interoperable digital platform, demonstrated through regional large-scale pilots in different countries of Europe by interdisciplinary applications.

翻译：本文提出了一个基于Web框架、配备功能性后端服务器的开放数字生态系统，应用于以用户为中心的能源改造。该数据驱动Web框架旨在作为瑞典西博滕地区能源咨询服务开发的一部分，用于建筑能源改造基准测试。我们开发并编程了一个四层架构，通过Web浏览器实现用户的交互式设计与可视化。框架集成了六种数据驱动方法作为后端服务器功能。基于这些功能，用户可在决定是否需要进行建筑改造时获得决策支持系统的帮助。同时，通过定量分析（即敏感性分析），对数据库中影响建筑能耗的因素（输入值）进行解析。该开放生态系统平台对能源改造的贡献体现在：1）可应用于能效提升的系统性框架，结合数据驱动方法；2）用户友好、操作简便灵活的基于Web的平台；3）将定量分析集成至框架中，以评估所有相关因素的重要性。该计算框架专为希望获取能源咨询初步信息的利益相关者设计。通过所开发平台改进的能源咨询服务，可显著降低决策成本，使决策者能够深思熟虑且高效地参与此类需要专业知识的决策过程。本研究由AURORAL项目资助，该项目集成了开放且可互操作的数字平台，并通过欧洲多国的区域性大规模试点跨学科应用进行示范验证。