Helen Ltd's Heat Pump for 3H2 Vuosaari Hydrogent Plant

Helen Oy is implementing a modular liquid-to-liquid heat pump setup to Helsinki, Vuosaari. HP module will produce heating to Helen’s district heating (DH) network. Heat pump module uses low temperature waste heat from nearby industrial process as a heat source. Heat pump module produces district heating, and the heat will be transferred to the district heating network of Helsinki. An intermediate antifreeze loop will be established between industrial process and heat pump module by the purchaser. Heat pumps are directly connected to the district heating network (design parameters 16barg/120°C) or with separate liquid/liquid heat exchangers (included in the Scope of Works if needed). The scope of this specified works is the delivery and commissioning of heat pump module consisting of liquid-to-liquid heat pumps installed inside a container or a custom made module ready to be connected to liquid networks and power supply. The scope of works contains heat pump units and all the necessary auxiliary equipment and services which are described in Invitation to Tender and its Appendixes. Items which are not mentioned in documentation but are needed for the heat pumps to operate reliably shall be included to the scope of works. The object of the procurement is described in the documents attached to the request for participation, as additional information. The design and production of the HP units in the scope of this supply is one technical entity which cannot be divided into lots. There is no need to leave an offer during the participation request phase.

The scope and details of the procurement are described in more detail in the tender documents, which are submitted in full to tenderers selected based on participation applications with a preliminary and final tender request. Heat pump module operating range: cooling inlet temperature is 47-60°C cooling outlet temperature is 23-30°C heating inlet temperature is 35-60°C heating outlet temperature is 70-90°C Intermediate network cooling capacity of at least 1100 kW when: cooling inlet temperature is 50°C cooling outlet temperature is 25°C heating inlet temperature is 50°C heating outlet temperature is 85°C Only refrigerants of class A are allowed. Preliminary dimensions of the heat pump module is 14680mm x 5500mm x 5000mm (length x width x height) Preliminary schedule estimation for execution: 4/2026 Heat pumps delivered to installation site 9/2026 Heat pumps commissioned 9/2026 Heat pump’s test run done and unit ready for operation 10/2026 Heat pump’s guaranteed values measured