Auxiliary system for a low-temperature thermal energy distribution network

An auxiliary system for a low-temperature remote thermal energy distribution network (anergy network) connected to user thermal installations, the auxiliary system comprising a heat exchanger of the anergy network and one or more heat pumps thermally coupled to the anergy network via the heat exchanger, the auxiliary system further comprising one or more air-liquid heat exchangers thermally coupled to the outside air, and a hydraulic network interconnecting the heat pumps to the heat exchanger of the anergy network, at least one of the one or more heat pumps being a liquid-air heat pump fluidically connected by the hydraulic network to at least one of said air-liquid heat exchangers, an evaporator side of the liquid-air heat pump being fluidically connected to the at least one of said air-liquid heat exchangers configured for exchanging heat with the outside air, the auxiliary system further comprising a measurement, control and regulation (MCR) system, wherein the hydraulic network comprises valves controlled by the MCR system and a hydraulic circuit configured to allow direct connection of said air-liquid heat exchangers to the heat exchanger of the anergy network, wherein the MCR system comprises a plurality of temperature sensors, including at least one temperature sensor providing a temperature measurement of a heat transfer fluid in the anergy network and at least one temperature sensor providing a temperature measurement of the outside air, and an MCR module electronically connected to the plurality of temperature sensors and to the hydraulic network, the MCR module being configured to receive said temperature measurements and to control opening of said valves to allow said direct connection of the air-liquid heat exchangers to the heat exchanger of the anergy network.