A data center facility comprising: first and second containerized data centers each comprising: a first data center section comprising one or more equipment elements , each equipment element having one or more heat generating sources; a second data center section comprising a heat exchanger , the second data center section being thermally insulated from the first data center section ; and a heat transfer element thermally coupled to at least some of the heat generating sources and further thermally coupled to the heat exchanger ; and characterized by : a roof exhaust vent for exhausting air from the second data center section heated by the heat exchanger to the outside of the data center, and a base inlet vent through which outside air may be drawn into the second data center section to cool the heat exchanger , wherein during operation of the equipment element, the heat exchanger is cooled using stack effect ventilation in which heated air is naturally evacuated through the roof exhaust vent causing outside air to be drawn in through the base inlet vent; and wherein the first data center is arranged in a first transportable container and the second data center is arranged in a second transportable container located on top of the first transportable container, wherein the roof exhaust vent of the first transportable container corresponds to the base inlet vent of the second transportable container such that the second data center sections of both containerized data centers are in fluid communication. a first data center section comprising one or more equipment elements , each equipment element having one or more heat generating sources; a second data center section comprising a heat exchanger , the second data center section being thermally insulated from the first data center section ; and a heat transfer element thermally coupled to at least some of the heat generating sources and further thermally coupled to the heat exchanger ; and characterized by : a roof exhaust vent for exhausting air from the second data center section heated by the heat exchanger to the outside of the data center, and a base inlet vent through which outside air may be drawn into the second data center section to cool the heat exchanger , wherein during operation of the equipment element, the heat exchanger is cooled using stack effect ventilation in which heated air is naturally evacuated through the roof exhaust vent causing outside air to be drawn in through the base inlet vent; and wherein the first data center is arranged in a first transportable container and the second data center is arranged in a second transportable container located on top of the first transportable container, wherein the roof exhaust vent of the first transportable container corresponds to the base inlet vent of the second transportable container such that the second data center sections of both containerized data centers are in fluid communication. a roof exhaust vent for exhausting air from the second data center section heated by the heat exchanger to the outside of the data center, and a base inlet vent through which outside air may be drawn into the second data center section to cool the heat exchanger , wherein during operation of the equipment element, the heat exchanger is cooled using stack effect ventilation in which heated air is naturally evacuated through the roof exhaust vent causing outside air to be drawn in through the base inlet vent; and wherein the first data center is arranged in a first transportable container and the second data center is arranged in a second transportable container located on top of the first transportable container, wherein the roof exhaust vent of the first transportable container corresponds to the base inlet vent of the second transportable container such that the second data center sections of both containerized data centers are in fluid communication. <EOS>