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Energy related Topics

Topics of the track

Distributed Sector Coupled Low Carbon Energy Supply for Logistics Properties –  Concept for the Integration of Heating, Electricity and Transport

In this paper, a concept for a low greenhouse gas emission energy supply is developed, taking a logistics center as an example. Especially sector coupling is considered as a means to achieve a low carbon energy supply.  In  this  regard,  the  modeling  of the energy system and the developed architecture of an energy management system are presented.

RESTful Web Services and gRPC, a comparison of the technologies and the optimization of existing data synchronization and energy consumption

As part of the research work for the BMBF project ENVIRON, we have developed a solution for saving bandwidth in data transmission and are also investigating the theoretically possible savings in power consumption. The Internet is used by the ENVIRON sensor system in over 25 households for data transmission with the research server. gRPC technology was implemented to reduce transfer rates, instead of the previously used technology RESTFul Service[2] In addition to reduced data transfer rates a theoretical reduce of power consumption is also considered upon the basis of the study by Junxian Huang et. al. called "A Close Examination of Performance and Power Characteristics of 4G LTE Networks" in chapter 5 [3]. Several studies have examined the influence of different wireless variants such as 3G, 4G and WiFi, but the choice of communication type may also have an impact on energy costs. This impact was researched by Carolina Luiza Chamas et. al. in the publication "Comparing REST, SOAP, Socket and gRPC in computation offloading of mobile applications: An energy cost analysis"[4]. In this paper, we introduce the data sync process performed by RESTFul services and then compare it with the data sync process using gRPC technologies. The comparison targets the data synchronization process of sensor data to the reserach server.

Digital steering tool for real estate owners in the era of energetic transition

The Fondation communale de Versoix - Samuel May (hereafter the Foundation) is a municipal foundation of public interest who owns several buildings and whose aim is to provide, as a priority, the population of the town of Versoix with comfortable housing at prices corresponding to its needs, as well as professional, commercial, artisanal or general interest premises with sustainability criteria. The Foundation’s attention had been drawn to the eREN project, developed by the HES-SO, proposing a global approach for the building envelope in energetic refurbishment projects. In 2018, the Foundation board contacted HES SO / HEPIA (Engineering and architecture faculty of the HES-SO), in Geneva, to request for the development of a simple and transparent tool to help its board to better plan the renovation interventions of its real estate assets. The project was launched in 2019 and completed in 2020, resulting in a methodology for evaluating the building stock and a steering tool, based on a simple spreadsheet, which makes it possible for the Foundation board to set intervention priorities on the basis of its strategic criteria.

Chair: Hans-Knud Arndt