Fabeck, Eric Leander

Diploma Thesis:
2058

Topic:
Application and Evaluation of Innovative Electricity Procurement Models on Construction Sites

Editor:
Eric Leander Fabeck

University Professor Responsible:
Univ.-Prof. Dr.-Ing. Dipl.-Wirt.-Ing. Jens Otto

Supervisor:
University Supervisor: Dipl.-Ing. Florian Härtel

Editing Period:
20.08.2025 until 24.12.2025

Abstract: 
This paper evaluates innovative electricity procurement models from an organisational, legal, technical and economic perspective. The organisational and legal analysis shows that only the dynamic electricity tariff, whose dynamic working price component is linked to the day-ahead prices of the EPEX SPOT electricity exchange, represents a viable alternative to the conventional tariff. Based on hourly consumption data from eight real construction sites, the economic efficiency of the dynamic tariff is examined in four scenarios. The dynamic tariff generally proves to be more economical if the sum of the fixed energy price component of the dynamic tariff and the average spot market price used is lower than the energy price of the conventional tariff. In addition, the use of mobile storage to reduce costs is considered, but this is not economical as a primary means of cost reduction. The same applies to most adjustments to the construction process. Finally, it is emphasised that the dynamic tariff offers the potential to increase awareness of electricity consumption and corresponding reduction measures. As a result, an additional reduction in total electricity consumption can be achieved.