WFS service - A heat network - also called district heating - is an installation distributing heat produced by one or more boiler rooms to several users, via a set of heat transport pipes (hot water pipes) and exchangers (also called substations). The heat thus distributed is mainly used for heating and domestic hot water in buildings; some networks also provide heat for industrial use. The principle is the same for a cold network, which works like a reverse heat network (instead of supplying heat to buildings, the cold network takes it). These systems heavily mobilize renewable and recovery energies (more than half of their energy mix), and are therefore in full development, in particular to achieve the objective of multiplying by 5 the quantity of renewable heat delivered by the networks. by 2030 provided for by the energy transition law. The inventory of existing networks, crossed with the heat/cold demand of buildings, makes it possible to best project their development by 2030. The inventory of heat and cold networks in Auvergne-Rhône- Alpes (AURA) is based on a survey of communities, unions, operators and a cross-section of different data sources (national survey, published energy-climate data, ViaSèva directory, dedicated network sites, etc.), in 2016-2017. The data collected for each network listed in AURA, i.e. 252 heating networks, 3 cold networks and 6 planned networks, are published in table form, with their sources.