A pioneering low-carbon heating network will bring sustainable comfort to the future residents of Kuebebierg, one of the largest new urban developments planned in Luxembourg City's Kirchberg district.

The new neighbourhood, set to rise on the northern edge of the Kirchberg plateau between Boulevard Adenauer and the Route d'Echternach, will eventually house several thousand residents. It will be powered by a fully decarbonised heating system.

On Friday, the Belgian thermal systems company Karno presented the project, developed in partnership with C-Energy and Hydrogaz. The network will supply 3,500 homes, as well as businesses and public spaces across Kuebebierg. According to Karno, this will be Europe's first large-scale low-carbon district network entirely based on decentralised geothermal, aerothermal, and hybrid solar technologies.

The heating grid will be built around 21 small autonomous thermal stations distributed throughout the district, according to the company. Each of these will produce heat and hot water through geothermal heat pumps, thermal storage tanks, and optimised distribution systems. Karno added that the network will also include a central aerothermal plant and hybrid solar panels combining photovoltaic and thermal technologies, providing not just heat but also cooling for residential buildings.

The Kuebebierg urban project, designed by Güller Güller Architecture Urbanism, will take shape over the coming years. The area will be connected to Luxembourg's expanding tram network, with work on the new line already underway in Kirchberg.