Thermal energy storage integrated heat pump

A heat pump system comprising:

• a first heat exchanger configured to facilitate heat exchange between ambient air proximate the first heat exchanger and a refrigerant;
• a second heat exchanger configured to facilitate heat exchange between the refrigerant and air supplied to a climate-controlled space;
• a third heat exchanger comprising a first fluid pathway, and a second fluid pathway, the third heat exchanger in thermal communication with a thermal energy storage (TES) material;
• a TES temperature sensor;
• an ambient air temperature sensor;
• a first compressor configured to cause refrigerant to flow within a first fluid path or a second fluid path;
• and
• a controller configured to:
• determine TES temperature data using the TES temperature sensor;
• cause, based at least in part on the TES temperature data, one or more control valves to permit refrigerant to flow to the first heat exchanger, the second heat exchanger, or the third heat exchanger;
• receive ambient air temperature data from the ambient air temperature sensor;
• determine, based at least in part on the ambient air temperature data, that the temperature of the ambient air is less than or equal to an ambient air threshold temperature;
• output a first control signal to actuate the one or more control valves to permit the refrigerant to flow between the second heat exchanger and the third heat exchanger;
• and
• output a second control signal to activate the second compressor to cause refrigerant to flow between the second heat exchanger and the third heat exchanger to heat the climate-controlled space;
• wherein the first fluid path extends between the first compressor, the first heat exchanger, and the first fluid pathway of the third heat exchanger;
• and
• wherein the second fluid path extends between the second heat exchanger and the second fluid pathway of the third heat exchanger.