An apparatus, comprising: a separator tank configured to separate a first refrigerant into a vapor component and a liquid component; a heat exchanger exposed to a load configured to use the liquid component of the first refrigerant to remove heat from a space proximate the load, wherein the space comprises at least one of a refrigeration unit and walk-in cooler or freezer; a compressor-less heat separator configured to extract heat from the vapor component of the first refrigerant and use electrical power to move the heat to a second refrigerant; a fluid cooler configured to remove heat from the second refrigerant; a temperature sensor configured to measure a temperature of the second refrigerant; and a controller communicatively coupled to the temperature sensor, the controller configured to: compare the measured temperature to a temperature set point; and based on the comparison between the measured temperature and the temperature set point, increase a rate of flow of the second refrigerant to the fluid cooler, wherein the separator tank comprises: a vapor outlet configured to discharge the vapor component of the first refrigerant to the heat separator; a liquid outlet configured to discharge the liquid component of the first refrigerant to the heat exchanger; a first inlet configured to receive the first refrigerant from the heat separator; and a second inlet configured to receive the first refrigerant from the heat exchanger exposed to the load; wherein the separator tank is configured to use gravity to separate the vapor component and liquid component of the first refrigerant received from the heat exchanger and the heat separator. a separator tank configured to separate a first refrigerant into a vapor component and a liquid component; a heat exchanger exposed to a load configured to use the liquid component of the first refrigerant to remove heat from a space proximate the load, wherein the space comprises at least one of a refrigeration unit and walk-in cooler or freezer; a compressor-less heat separator configured to extract heat from the vapor component of the first refrigerant and use electrical power to move the heat to a second refrigerant; a fluid cooler configured to remove heat from the second refrigerant; a temperature sensor configured to measure a temperature of the second refrigerant; and a controller communicatively coupled to the temperature sensor, the controller configured to: compare the measured temperature to a temperature set point; and based on the comparison between the measured temperature and the temperature set point, increase a rate of flow of the second refrigerant to the fluid cooler, wherein the separator tank comprises: a vapor outlet configured to discharge the vapor component of the first refrigerant to the heat separator; a liquid outlet configured to discharge the liquid component of the first refrigerant to the heat exchanger; a first inlet configured to receive the first refrigerant from the heat separator; and a second inlet configured to receive the first refrigerant from the heat exchanger exposed to the load; wherein the separator tank is configured to use gravity to separate the vapor component and liquid component of the first refrigerant received from the heat exchanger and the heat separator. compare the measured temperature to a temperature set point; and based on the comparison between the measured temperature and the temperature set point, increase a rate of flow of the second refrigerant to the fluid cooler, wherein the separator tank comprises: a vapor outlet configured to discharge the vapor component of the first refrigerant to the heat separator; a liquid outlet configured to discharge the liquid component of the first refrigerant to the heat exchanger; a first inlet configured to receive the first refrigerant from the heat separator; and a second inlet configured to receive the first refrigerant from the heat exchanger exposed to the load; wherein the separator tank is configured to use gravity to separate the vapor component and liquid component of the first refrigerant received from the heat exchanger and the heat separator. a vapor outlet configured to discharge the vapor component of the first refrigerant to the heat separator; a liquid outlet configured to discharge the liquid component of the first refrigerant to the heat exchanger; a first inlet configured to receive the first refrigerant from the heat separator; and a second inlet configured to receive the first refrigerant from the heat exchanger exposed to the load; wherein the separator tank is configured to use gravity to separate the vapor component and liquid component of the first refrigerant received from the heat exchanger and the heat separator.