A method for assembling a modular air-cooled condenser extending along a vertical axis away from horizontal, wherein the method comprises: - assembling a first condenser bundle having a first set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; - assembling a second condenser bundle having a second set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; - assembling a third condenser bundle having a third set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the third set of tubes; - assembling a fourth condenser bundle having a fourth set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; characterized in that the method further comprises the steps of: - placing the first and second condenser bundles in to a container; - placing the third and fourth condenser bundles into a container; - transporting the container to a location upon which the modular air-cooled condenser will be assembled; - assembling a heat exchange delta by placing using the first condenser bundle and the second condenser bundle; - assembling a second heat exchange delta by placing using the third condenser bundle and the fourth condenser bundle; and - positioning the first and the second heat exchange deltas on a modular tower frame, and, wherein the modular air-cooled condenser includes an air current generator associated with said first and second heat exchange deltas. - assembling a first condenser bundle having a first set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; - assembling a second condenser bundle having a second set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; - assembling a third condenser bundle having a third set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the third set of tubes; - assembling a fourth condenser bundle having a fourth set of tubes having first and second ends, a steam manifold connected to the first ends of the tubes, and a condensate header connected to the second ends of the tubes; - placing the first and second condenser bundles in to a container; - placing the third and fourth condenser bundles into a container; - transporting the container to a location upon which the modular air-cooled condenser will be assembled; - assembling a heat exchange delta by placing using the first condenser bundle and the second condenser bundle; - assembling a second heat exchange delta by placing using the third condenser bundle and the fourth condenser bundle; and - positioning the first and the second heat exchange deltas on a modular tower frame,