The aim of this project is to improve the efficiency of distribution of heat for municipal and residential purposes in the Gdańsk-Gdynia-Sopot Metropolitan Area. For the Metropolitan Area of Gdańsk-Gdynia-Sopot and for the City of Gdańsk (where the investment area is located), Low-Emission Economy Plans (PGN for GOM, now OM G-G-S and the City of Gdańsk) have been adopted. The subject of the project is to carry out modernisation works of district heating networks and group nodes in selected, sensitive sections in the urban heating system in Gdańsk, as well as modernisation of telemetry and telemechanics system. Selected networks are channel networks that will be converted into modern pre-insulated networks, placed directly in the ground. The estimated length of the upgraded networks is: It’s 5,01 miles.