Germany · District heating

Rostock seawater heat pump

Johnson Controls describes this as Germany's first seawater heat-pump project and states up to 700 kW heating output. It is a supplier announcement, not operational performance evidence.

Under construction

Recorded project facts

Supplier or system
Johnson Controls Sabroe DualPAC
Published capacity
Up to 700 kW
Heat source
Baltic seawater
Heat sink
District-heating water
Refrigerant
R717 ammonia
Evidence type
Manufacturer report

Evidence boundary

The linked source was published by a supplier involved in the project. It can establish the supplier's stated scope and figures but is not independent verification of annual performance.

Values have not been normalised across projects because source temperatures, sink temperatures, system boundaries and reporting periods differ.

Evidence source

Johnson Controls Rostock release

Record reviewed 21 August 2026. Status is shown separately so a planned system cannot be mistaken for an operating installation.

Open evidence source →