As part of its energy policy, the City of Luxembourg pursues a strategy of energy efficiency enhancement in order to achieve considerable energy savings.

A major component of this strategy is the use of cogeneration technology, which permits the combined production of heat and electricity with a very high energy yield. This has both environmental and economic benefits.

Supply areas

In neighbourhoods served by the district heating grid, the City of Luxembourg serves as heating supplier, offering a new public utility with considerable advantages for its users.


District heating allows residents to:

  • benefit from a long-term heating supply;
  • avoid the costs of installing or replacing their heating system;
  • may decide not to build a fireplace and chimney;
  • no longer need to maintain their chimney or boiler;
  • benefit from a full warranty on primary equipment; and
  • use clean and eco-friendly energy (primary energy savings of 35%).

Relations between the City and its customers are governed by a heating supply agreement that defines the technical and economic terms of the service. The City invoices the energy supplied to the customer on a pro rata basis in relation to the power of their demand (demand charge) and the quantity of heat supplied (charge for energy usage).

The City is responsible for financing and building the distribution grid and the heat transfer stations that supply heat to customers. Heat production and supply to Luxembourg City's grid is carried out by private companies that have been awarded concessions.

As part of its heat-supply concept, Luxembourg City has been able to capitalise on know-how from both the municipal and private sectors, allowing it to create useful synergies. Once in the grid, the heat is distributed by the City of Luxembourg, which draws on its extensive experience in gas, electricity and water distribution.

Terms for connection

The City of Luxembourg established the technical terms for connection (conditions techniques de raccordement – CTR-CU) in order to ensure the safety and reliability of its heat supply services. These terms, as well as the corresponding technical factsheets, govern the design, connection and operation of equipment to be connected to Luxembourg City's district heating grid.

Customers must oblige any engineering firms and contractors hired to comply with the CTR-CU for the installation, extension or modification of their heating system.

If equipment is found to be defective to the point that it could compromise the safety and/or reliability of its heating grid, Luxembourg City may refuse to allow connection to the grid or heat supply.

All laws, provisions, decrees and requirements currently in force remain unaffected by the CTR-CU.

All requirements for the prevention of work-related accidents must be complied with.

Form(s) to be completed

Request for connection to district heating

Via online form

Non-authenticated method, manual signing and sending

  • This is a non-authenticated method
  • You fill out a smart form online
  • Print, sign and send
    • by post or
    • email (scan)
Online form


Anyone planning and/or carrying out civil engineering works near City of Luxembourg district heating conduits must comply with the below requirements.