Feasibility study of heat production and distribution for a new passive district – Tivoli, Brussels

January 25, 2019


Client: GOMB
Period: 2011 – 2012
Carried out as: main contractor
Surface: 2.79 ha, 450 residential units


City.dev (the former Brussels Regional Development Agency – SDRB-GOMB) has been planning a new sustainable neighborhood in Laeken. There will be about 450 homes on the 2,79 ha site, supplemented with services for the collective interest such as nurseries, retail shops and small-scale amenities. Companies active in sustainable development will settle on an adjacent site. 3E was tasked with carrying out a technical and financial feasibility study of the various heat production and distribution systems, both for individual as well as collective concepts.

In the first instance, an assessment was made of the heat demand of this passive neighborhood, and the heat profile over a year was drawn up. Subsequently, a qualitative list was compiled of energy concepts, whereby the pros and cons were considered. From this list, in a first stage, one individual concept and two collective concepts were selected for which a subsequent cost-benefit analysis was carried out. The selected concepts were: individual boilers per building, central boiler, gas central heat and power (CHP). This analysis showed that a heating network is an option with potential for this project, because this option involves a large number of residential units on a relatively small site.