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High temperature storage for steam production

| 2025:1149 | Jenny Wilson, Henrik Brodén, Katarina Karlström AFRY SWEDEN, Bernd Neumann, Ting Xu, Diego Luna Victoria Torres AFRY GERMANY Peter Dahlén, Christer Sandberg, Magnus Rydstrand, Joel Österqvist HOLMEN
This report explores how high-temperature thermal energy storage (TES) can improve operational flexibility and reduce electricity costs in industrial steam production.
High temperature storage

Using Holmen Hallsta paper mill as a case study, the analysis identifies solid-state sensible heat storage (SHS) with concrete or ceramics as the most suitable solution – offering high efficiency, low investment cost, commercial maturity, appropriate operating temperatures, and compatibility with existing infrastructure. Battery energy storage systems (BESS) are also considered a viable option, particularly in settings like Hallsta where heat is already generated electrically.

The findings provide valuable insights for industries seeking cost-effective and scalable energy storage solutions to optimize steam generation and respond to fluctuating electricity prices.