Effects of non-industrial decentralized demand-side-management on energy costs and battery storage requirement in Germany's power grid

Bennet Köppchen, Ingo Stadler and Arjuna Nebel

Energy, 2025, vol. 323, issue C

Abstract: As the share of volatile renewable energy sources in the electrical power grid continues to grow, needed additional system flexibility can be provided by energy storages, power transmission, and demand-side-management. The interplay between these three elements has recently gained interest in the field of energy system modeling. This study aims to determine the impact of potential non-industrial demand-side-management technologies, including heat pumps, controlled charging of battery electric vehicles, refrigeration, and air conditioning, on energy costs and battery storage requirements in Germany's future electrical power system. The model is analyzed using a novel modeling approach that enables a comparison of flexible loads responding to different market conditions: centralized market conditions with uniform market prices and decentralized market conditions with nodal prices, considering the congestion management potential of demand-side-management. The results show that non-industrial flexible loads can significantly affect the need for battery storage if high residual load peaks can be reduced by the specific technology. However, energy costs may only be reduced by up to 10 %. The study emphasizes the potential of demand-side-management for mitigating grid congestions, demonstrating that investment in battery storages may be lowered by up to 40 % when comparing centralized and decentralized market conditions.

Keywords: Demand-side-management; Energy system modeling; Flexibility; Nodal pricing; Power transmission grid (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:323:y:2025:i:c:s0360544225015348

DOI: 10.1016/j.energy.2025.135892

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