Oceanographic preconditions for planning seawater heat pumps in the Baltic Sea – an example from the Tallinn Bay, Gulf of Finland

Elken, Jüri; Maljutenko, Ilja; Lagemaa, Priidik; Uiboupin, Rivo; Raudsepp, Urmas

doi:https://doi.org/10.5194/sp-4-osr8-9-2024

Articles | Volume 4-osr8

https://doi.org/10.5194/sp-4-osr8-9-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Report:

8th edition of the Copernicus Ocean State Report (OSR8)

https://doi.org/10.5194/sp-4-osr8-9-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 4-osr8

30 Sep 2024

| OSR8 | Chapter 3.1

| 30 Sep 2024 | OSR8 | Chapter 3.1

Oceanographic preconditions for planning seawater heat pumps in the Baltic Sea – an example from the Tallinn Bay, Gulf of Finland

Jüri Elken, Ilja Maljutenko, Priidik Lagemaa, Rivo Uiboupin, and Urmas Raudsepp

Data sets

Baltic Sea Physical Reanalysis EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00013

Baltic Sea - In Situ Near Real Time Observations EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00032

European Marine Observation and Data Network EMODnet https://www.emodnet.eu/

HELCOM Map and data service HELCOM MADS https://maps.helcom.fi/website/mapservice/

Short summary

Baltic deep water is generally warmer than surface water during winter when district heating is required. Depending on the location, depth, and oceanographic situation, bottom water of Tallinn Bay can be used as an energy source for seawater heat pumps until the end of February, covering the major time interval when heating is needed. Episodically, there are colder-water events when seawater heat extraction has to be complemented by other sources of heating energy.