Impacts of thermal energy storage on the management of variable demand and production in electricity and district heating systems: a Swedish case study
Artikel i vetenskaplig tidskrift, 2020

This study investigates how thermal energy storage (TES) influences the cost-optimal investment and operation of electricity and district heating (DH) systems in different scenarios. Greenfield energy system modelling for Year 2050 with a high time resolution shows that sensible TES strategies have a strong impact on the composition and operation of the DH system in all investigated scenarios. The introduction of TES displaces to a significant extent the heat-only boilers in all scenarios and can promote solar heating in small DH networks. The modelling shows that TES also promotes the use of power-to-heat processes and enables combined heat and power plants to increase full-load hours, with simultaneous adaptation to the variable production in the electricity system. A major benefit derived from TES is the ability to respond to rapid variations in the electricity system. Thus, the pit and tank storage systems with higher (dis)charging capacities are preferred over borehole storage.

variation management strategies

energy systems modelling

Thermal energy storage

variable renewable energy

Författare

Petra Holmér

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Jonathan Ullmark

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Lisa Göransson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Viktor Walter

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

International Journal of Sustainable Energy

1478-6451 (ISSN) 1478-646X (eISSN)

Vol. in press

Ämneskategorier

Energiteknik

Annan naturresursteknik

Energisystem

DOI

10.1080/14786451.2020.1716757

Mer information

Senast uppdaterat

2020-06-18