IEA SHC Task 42 / ECES Annex 29 – A Simple Tool for the Economic Evaluation of Thermal Energy Storages
Nielsen, Jan Erik
MetadataShow full item record
Within the framework of IEA SHC Task 42 / ECES Annex 29, a simple tool for the economic evaluation of thermal energy storages has been developed and tested on various existing storages. On that account, the storage capacity costs (costs per installed storage capacity) of thermal energy storages have been evaluated via a Top-down and a Bottom-up approach. The Top-down approach follows the assumption that the costs of energy supplied by the storage should not exceed the costs of energy from the market. The maximum acceptable storage capacity costs depend on the interest rate assigned to the capital costs, the intended payback period of the user class (e.g. industry or building), the reference energy costs, and the annual number of storage cycles. The Bottom-up approach focuses on the realised storage capacity costs of existing storages. The economic evaluation via Top-down and Bottom-up approach is a valuable tool to make a rough estimate of the economic viability of an energy storage for a specific application. An important finding is that the annual number of storage cycles has the largest influence on the cost effectiveness. At present and with respect to the investigated storages, seasonal heat storage is only economical via large sensible hot water storages. Contrary, if the annual number of storage cycles is sufficiently high, all thermal energy storage technologies can become competitive.
Proceedings of the 4th International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2015)
Is part ofEnergy Procedia, 2016, vol. 91, p. 197-206
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as cc-by-nc-nd (c) Christoph Rathgeber et al., 2016
Showing items related by title, author, creator and subject.
Thermal energy storage in building integrated thermal systems: A review. Part 2. Integration as passive system Navarro Farré, Lidia; Gracia Cuesta, Alvaro de; Niall, Dervilla; Castell, Albert; Browne, Maria C.; McCormack, Sarah J.; Griffiths, Philip; Cabeza, Luisa F. (Elsevier, 2016)Energy consumption trends in residential and commercial buildings show a significant increase in recent decades. One of the key points for reducing energy consumption in buildings is to decrease the energy demand. Buildings ...
New proposed methodology for specific heat capacity determination of materials for thermal energy storage (TES) by DSC Ferrer, Gerard; Barreneche Güerisoli, Camila; Solé Garrigós, Aran; Martorell, I.; Cabeza, Luisa F. (Elsevier, 2017)This study presents a methodology to determine the specific heat capacity (Cp) of materials for thermal energy storage (TES) by DSC. These materials have great energy storage capacities, and due to that, important heat ...
Cabeza, Luisa F.; Gracia Cuesta, Alvaro de (Elsevier, 2015)It is well known that there is a need to develop technologies to achieve thermal comfort in buildings lowering the cooling and heating demand. Research has shown that thermal energy storage (TES) is a way to do so, but ...