Abstract: The chilling system provides cooling to components housed within a container by pumping propylene-glycol-water-mixture (PGWM) or equivalent through heat exchange assemblies and thermal transfer vessels. The thermal transfer vessels are filled with a paraffin-based phase change material (PCM) or equivalent solution for realizing phase change of the PCMs at selected melting points. The heat exchange assemblies are provided with thermal electric coolers for cooling the PGWM as it travels through the heat exchangers. The cooled PGWM is directed into and through a target cooling manifold of a target heat exchanger assembly to realize cooling the housed components. The system operates on direct current at under 500 watts of power and requires no Freon-type refrigerants or compressors. A microcontroller controls switches for realizing desired flow paths of the PGWM upon receiving phase change and temperature information from sensors.