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Dynamic modeling of local district heating grids with prosumers: A case study for Norway

Hanne Kauko, Karoline Husevåg Kvalsvik, Daniel Rohde, Natasa Nord and Åmund Utne

Energy, 2018, vol. 151, issue C, 261-271

Abstract: District heating (DH) will play an important role in the future fossil-free energy systems by enabling increased utilization of waste heat and renewable heat sources to cover buildings' heat demand. A prerequisite for this is a reduction in the distribution temperature and shift towards decentralized heat production. In this study, dynamic modeling has been applied to study the technical, energetic and environmental impacts of including prosumers – customers who both consume and produce heat – in a local low-temperature DH grid. Four different scenarios were studied for a planned building area in Trondheim, Norway: high- and low-temperature scenarios with the entire heat demand being covered by a heat central, and two low-temperature scenarios including heat supply from prosumers. A data center and two food retail stores were considered as the prosumers, each with different location and individual characteristics for the heat supply, allowing to study their impact on the water flow in different parts of the grid. The results show that utilizing local surplus heat is a significant measure to reduce the heat demand and the environmental impact of the DH grid. Decentralized heat supply additionally contributes to reduced heat losses, due to overall lower distances to transport the heat.

Keywords: Low-temperature district heating; Thermal system modeling; Prosumers; Surplus heat; Energy planning (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:151:y:2018:i:c:p:261-271

DOI: 10.1016/j.energy.2018.03.033

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