Impacts of thermal energy storage on the management of variable demand and production in electricity and district heating systems: a Swedish case study
Journal article, 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.

energy systems modelling

Thermal energy storage

variation management strategies

variable renewable energy

Author

Petra Holmér

Chalmers, Space, Earth and Environment, Energy Technology

Jonathan Ullmark

Chalmers, Space, Earth and Environment, Energy Technology

Lisa Göransson

Chalmers, Space, Earth and Environment, Energy Technology

Viktor Walter

Chalmers, Space, Earth and Environment, Energy Technology

Filip Johnsson

Chalmers, Space, Earth and Environment, Energy Technology

International Journal of Sustainable Energy

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

Vol. 39 5 446-464

Subject Categories

Energy Engineering

Other Environmental Engineering

Energy Systems

DOI

10.1080/14786451.2020.1716757

More information

Latest update

10/6/2020